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In my youth, I used to sell the HPM-100 speakers at a stereo shop in upstate NY. Those speakers could kick the ass of anything else we sold, and do it with style.

I am an audio engineer. The reason a audio device has a frequency range beyond the human ear is not a gimmick. It's to prevent Total Harmonic Distortion which occurs at and around the 3db down point is not audible to the human ear. Example of this is with the Gamble EX56 Live Sound Console, it's frequency range is up to 35khz.

The Pioneer HPM-100 speakers were my favorite from 1978 through 1986. I enhanced the sound quality by replacing the 22-gauge speaker wire with 18-gauge wire. I had the Pioneer SA-9500II, the TX-9500II, PL-550 direct drive turntable, the PL-5000 direct drive turntable, CTF-1000 three-headed cassette tape deck, and the RT-707. This components system sounded nice. That was the time when audio became a new hobby. Since then, I wanted to see the inside of a radio station and a recording studio. I acquired an interest sound reproduction by the view of an audiophile.

I have a set. Bought them at a garage sale for $50.00. I still use them and love them! What a great speaker!

I had a par of HPM-100 around 91-2000. Was handed down by a family friend. Had no idea how good I had it. Amazing. Thanks for making great videos.

Great video! Just picked up a set of HPM-100’s a few weeks ago from a family friend, who was was the original owner. They are in near mint shape and he even saved the original boxes! They pair AMAZINGLY with my Technics SA-800 that Just Audio brought back to life for me last year. Hope to get down to pick up some Model-5 Stands from you guys soon.

I’ve got two pair of vintage speakers. 1. Large Advent 2 way with 10” sealed woofer and “scrambled eggs tweeter. Love the deeper bass from the large woofer. They are cousins to KLH and AR as they were all designed by Henry Kloss. I also have ADS L710. These are fantastic 3 ways sealed two 7” woofers and domed mid and tweeter. They were premium speakers in the late 70s.

Very cool! I had read this history online some years ago, but it wasn’t quite as detailed. Your SX1250 and HPM-100 videos make me happy because it’s the combo I lusted for at 15 and finally bought about 20+ years ago. I’ll use them ‘til I’m gone and make sure they’re passed on to a new caretaker. They’re just SO satisfying to listen to and look at and the cool history adds to the appeal. Also, big shout-out to Audio Specialties and Inner Sound Audio in Portland, Oregon for reviving my vintage gear when I’ve had problems.

The super tweeter technology in this Pioneer speaker would later form the basis of Anthony Gallo Acoustics CDT tweeter found in many highly regarded models, but his tweeter played much lower than the Pioneer tweeter, extending from the lower range of high frequencies into the ultra sonic territory. Truly a remarkable tweeter.

I love the audio history lesson here, thanks for all the work put into this video. I really enjoy your content 🤙

I still have my original pair of HPM100's just like the ones you show here with the silver port ring and the updated woofer surrounds that dont rot way in time - I knew way back then when I saw the construction of these speakers they were something out of the ordinary and bought a pair, I still love them as much as the day I first go them.

Best job! Thank you for all the time and info on the Pioneer line up. My system back in the 70s consisted of the TX-1250, HPM-100s 200 watt version. I also had the famous Tecnics MLK turntable . I had the Pioneer cassette deck and the SG-9500 EQ. It sounded awesome! My friend's always said it sounded like in concert if you closed your eyes. What a great time in audio history. What a great company Pioneer.

Thanks for the HPM history. I have a pair of HPM 500s that I shoveled snow and rake leaves to buy when I was a kid. I refoam the woofs (with surgeon skills) and they still sound amazing. I never felt vibrating or hear sound from the super tweeter . Thanks for solving the mystery on them. SX 3700 still works great.

As an ex US Pioneer tech I will say oin 80-81 the sales of HPM-100s were phenomenal. People would buy them over many others because of their ruggedness. Many had 660 or 880 receivers as they handled the power well. Many audiophiles in DFW at that time. Still wish I had my 4. Also my 880 and RT-707 and 909. Wow I miss the depth my old equipment gave me. They were really what made Rock come alive....

Great coverage and story, and love the extensive history you have of the HPM speaker series. I’d learned of them and the history with Mr Locanthi’s role of their development a little over 10 years ago when I’d scored a pair of the HPM 60 yes I enjoyed them they were great speakers and still kinda sleepers at the time. But they sounded still full and clear used them with a pioneer Sa 9500 integrated amp , TX 9500 tuner and 707 reel 2 reel, JVC QF series DD turntable with grado red cartridge, denon dcd 3000 disc player. They formed a very respectable combo!!

Thanks for sharing this information. I have a pair of HPM 100 speakers (200 Watt version) paired with a fully restored vintage Garrard 401 turntable and a modern Cambridge Audio EVO 150. Unbelievable sound!

I remember listening to these in the stereo stores. The high polymer molecular film tweeters were crisp and clean and the bass was tight.

I owned a pair of HPM-200’s for about 20 years. They were so amazing and regret letting them go but the were the size of a Marshall 4x12” cab but even deeper and heavier.

When I was in Germany, I bought the HPM 900's. A Pioneer rep at the PX in 1982 said my dog would appreciate the super-tweeter because it acts as sort of a higher frequency filter in order to eliminate distortion in the tweeter. My dogs have never been bothered by my music ( or maybe they were just deaf ). I still have those ,refoamed, and 3 sets of HPM 100's. I will part with them only in death.

Had one of those! Absolutely brilliant. At that time my dad could not afford HPM-150 so we had to settle for the 100. Part of my teenage youth! After 30 years... I got hold of HPM-1500 (another version of the 150s).... such a piece of art. Great living room speakers, wonderful sound and wonderful furniture!

Really enjoying these videos. Personally own a set of AR-5's, HPM-60's, BIC Venturi's, Pioneer SX 60 watt receiver but miss my Marantz 50 watt a bunch. For sound I like the BIC's best because of efficiency with a solid midrange and ample bass. I sold a lot of HPM-100's in the 70's wish I'd taken ownership of a pair though. Keep the good videos coming.

Yes. 2 vintage speaker sets. In front room, Bang & Olfusen (1971 tower speakers) and in rear, JBL T80's. Both are amazing. B&O's have a East Coast sound, very bright and defined. Where as the JBL's rock the house with big booms and ports that put the sound stage front and center. Had them since, well, before the earth was brought into existence. Running 300 watts through them with my NAD power amp and occasionally enjoy vinyl on my Dual table.

I had pair of Pioneer HPM 100's speakers that were paired with a vintage Pioneer Receiver, amp, equalizer and vintage Technics turntable. I LOVED these speakers because they made my favorite music era (70's Classic Rock) that rocked my childhood sound so '70's!!! High quality vinyl was warm, rich, had depth and so much clarity! I've paired other speakers to my vintage components, including top line Energy Speakers and Klipsch. While they are good speakers, they don't hand a candle to the HPM's! In November, we moved from the Midwest to Florida. Unfortunately, my HPM 100's didn't make the trip. I saw them go into the moving truck, but they didn't end up at our home in FL. So either they got lost, but considering the quality of our movers, I have no doubt they stole them. I bought my speakers from a man in Wichita, KS for $450 total! They weren't mint but in exceptional condition and barely used. I've checked on Ebay what these are going for now, $ 1,000 - $2,000/pair. This just makes me sick to my stomach how these have gone up so much in value and now I can't afford to buy another pair. Add to that shipping costs and any damage they may get in the process. I'm so pissed I no longer own a pair to no fault of my own. I listen to a lot of vinyl and every time, I feel that uneasy sensation in the pit of my stomach knowing I was blessed to own a pair of these and enjoy how remarkable they were and probably will never had the chance to find another pair that I can afford.

I received a Pioneer component system for Christmas in 1979 (Proof of🎅🏼and that he ROCKS🤘🏼. Hard👊🏼) A few years back I relieved? myself of the whole system, including 400+ albums.. on a worthy trade. Sadly, however, I’ve NEVER been able to get that pure clarity and full range from any speaker since. Until last weekend when I semi reluctantly helped an old friend combine 2 warehouses of personal items. I spied something familiar seeming under a sheet in the corner…yep… a pair of showroom quality HPM~100s Annnnd a period Poineer receiver larger than my 1st. He said “Hey man, you know anybody that might want those things? I’ll make’em a deal.” The sprained wrist I got pulling $200 from my pocket has almost healed🤘🏼

I love this history, thank you. I had the HPM-40's all through the 80's and my foam surrounds rotted quickly.

My wife and I are planning a road trip to visit your store. Don't know when but not during the winter. It is a haul from Maine but I believe it will be worth it We don't have any vintage audio stores in this part of the country.

Still using mine for about 46 years. Repaired a tear in the big cone flawlessly.

My older brother started with the HPM-40, then 60, and eventually HPM-100, absolutely amazing. I still get goose bumps looking at them.

I have a pair of Klipsch KG-4's. Dual 8" woofers 12" drone rear driver. Sound spectrum from these is amazing, and the bass produced by the rear drone is impressive. Overlooked by many but loved by those who have them. Materials are second to none, i have a pair from 1985 all drivers, cones, foam still mint and i use them every day.

These are amazing speakers! I wish you could see the Hitachi HS-430 or those Audiosphere Research that I just can't find the model but they were among the biggest most incredible ever made with their 18-inch woofer, two midranges, and 4 BT-2 tweeters for each speaker! Those two types of speakers were on another level!!!

Great video to watch. I still own a bought new in 1979 set of the HPM 40 speakers. Back in 2008 I picked up a clean pair of HPM 100's at a great price. I also found a decent pair of HPM 700's that I bought right away. Pioneer made some superb stuff back in the 1970's.

My system was Lafayette 55w receiver, 2001+ speakers. Those were the days of magic in audio. Yes, audio is awesome today…. but there was just something great about audio back then that made it something more than the utilitarian thing into which it has evolved.

I was stationed on Okinawa, in the Air Force, in the late 70s through the early 80s. I saw and heard most of the gear that you discuss. I personally had a pair of JBL L100s and my roommate had a pair of HPM-100s. We did notice a tiny bit of difference in the sound characteristics of each...but I liked them both and would have been happy to own either speaker. I have settled on a pair of JBL L300s, which I've had for many years now.

I sold Pioneer HPM 100's in a stereo shop in Canada in the 70's. The HPM 100 was a "star" and I think sounded better than the bigger HPM 150 model. The sound of the HPM 100 with Pioneer's Spec 1 and Spec 2 pre and power amps was fantastic.

My favorite speaker is NHT VS1.4 I’ve had them for awhile. They sound fantastic and I’ve never seen another pair of these. Rare!

My dad had a set when I was a kid in the 80s, I have a picture with me as a toddler sitting in front of one with big goofy ear protection on. I have a set of my own now and couldn't be more stoked

Nice informative video! I take small issue with the criticism of the super tweeter frequency. It's true the human ear can't discern 25KHz by itself, but what's more important is the overall harmonic envelope of the sounds like from wind instruments or cymbals. the high frequency driver can help recreate these overall sounds more accurately. That's why for example the newer modern JBL speakers like the S9900s have a 42KHz HF driver, and definitely sound better with modern 24-bit music. I just got a very mint pair 100Bs, and they sound excellent. BTW, try using a paper towel roll, and isolate the HPM super tweeter, you will definitely hear a weak hiss, like sssssssssss.

HPM 100s are great! I have 2 sets that I have recapped with exact value Sonicap capacitors and Mills resistors. Also swapped the midrange with HPM700/900 mids. Which I highly suggest trying. Being powered by a Sansui AU-717.

My Dad bought these in 1978. Best speakers ever until kid brother used foot to kick in bass speakers. Sat in basement for years after that. Tried to save them but to far gone. Saved the Sansui G7000 though and had professionally restored. Breaks my heart I could not save speakers. Great video!

Great video, I love to see info about the HPM series. As a owner of 40, 60, 150, 1100 I have a bit of knowledge on them. One mistake is that the 150, 1100 have vinyl veneer. This is untrue, they both have furniture grade walnut veneer. Also yes the foam surrounds deteriorate over time but once replaced, the 150's continue to sound better than the 100. The sound is deeper and more full.

I own a pair of Infinity Qe's from 1978. It contains an 8" woofer that has a rubber surround. They will never deteriorate. It uses the EMIT tweeter that is a high frequency film that has an etched copper coil. Extremely sensitive to all highs. It is also fuse protected to prevent frying the tweeter. You need to be very careful that you don't drive your amp into clipping range,as that can destroy them. Luckily I have a couple of spare ones. Absolutely love their sound. I use a Marantz 2230 from about 1973 to drive them. Great 70's sound.

I'm running these in my home theater set up, paired with a new 10" Polk audio subwoofer. After watching Jurassic Park T-Rex scenes, I have to level the art on the walls because they are all crooked from the Boom. Love them.

Awesome!! Thanks for finally reviewing them. Now I can stop bugging you!! You did a great job with the review. Mine were bought in 76 by my dad along with the sx5580. Both still look brand new. They are my babies!! I appreciate you giving them love!!

The Super Tweeter is active from approximately 12 kHz up. They do produce sound, but some fail to realize that Pioneer used a small transformer in the crossover and that is likely the problem. Had a pair of HPM-900s and they both had bad transformers. A TV repair guy fixed them, but the Super Tweeters didn't produce much that I could hear. For somebody in there 20s or 30s they would likely hear at least up to 16 kHz, so more benefit to more youthful ears.

I replace the tweeters in my HPM-100's a couple of years ago. When I would run a test tone, the tweeters made a sound like the voice coils were dragging on the magnet. I was surprised there was anyone that still had new ones for sale and they were exact replacements. Had my HPM's since the mid 70s.

It looks like my Marantz SP1515. I love their sound. 3" tweeter, 5" mid and 15" woofer. They are slightly warm but synergize awesomely with my bright dac, and neutral A/B amp. The port is even in the same location.

Very good video. I wasn't familiar with Pioneer Speakers until i viewed this. Amazing. I did notice the change in one of that series from paper to plastic like in the woofer. I used to build speakers JVC had ones that was almost identical to the later Pioneer models shown. Really enjoyed watching this.👍✅

*how is it possible if the story is "untold" if you just told the story?*

I think there were some audio editing errors here. You point to the mid, and quote Pioneer about the tweeter. Then you point to the tweeter, and quote Pioneer about the woofer. And yes, the super-tweeter does have a moving part. The film itself is the moving part, using the piezoelectric principle. They do burn out, and yes, you can test them with a 10kHz test tone, which most people can hear. However, they contribute almost nothing to the sound, so if they're blown, just disconnect them and put them back in place.

When I was in Germany (West Germany back then) with the Army, I got into Pioneer stereo. My outfit had 4 of the massive HPM 1100 speakers, and I won every single barracks stereo war... lol. Still have 2 of them in the garage, but not with the original woofers... thanks to the stupid foam surrounds you were talking about. Mids, and highs are still phenomenal 40 years later, and the replacement woofers (Pioneer car audio ones) work great.

I owned a set of HPM 100s and loved them. The treble was pure and the bass would really thump. I had many parties and would get complimented on the sound of my speakers.

FYI: among all the super tweeter comments below, it should also be noted that it reproduces the harmonics you can't hear, these harmonics affect what you DO hear and help to create more realistic sound. The harmonics you can't hear because they are outside your range of human hearing make things sound the way you hear them, Exampe: you hear a Sax compared to what an acoustic guitar sounds like. The harmonics you can't hear make things sound the way they are.

I bought my HPM-100 speakers in 1977 and still use them today with my home entertainment system, They are phenomenal!!!!!!!!

Not just great speakers but VERY efficient. A good 45-watt amp was all you needed to rock the neighborhood.

Among "Audiophiles" (or "Equipment Enthusiasts"), one sure way to stsrt a polarizing speaker discussion is to mention the HPM-100, or anything by Bose....people who have never owned them usually don`t have a clue as to what they`re really like. I am currently running 2 pairs of HPM-100s, stacked and wired in parallel, powered by either a restored SX-1250, or a Carver M-500t amp. With either setup, the soundstage is absolutely HUGE, and sounds great for everything from quiet, near-field listening to "melt your face, Led Zeppelin concert" type volume levels. Yes, I do like these speakers....

Got a Pionee SX-1010 for $199 on closeout in Okinawa in 1976. Paired up with Technics direct drive turntable, Sony TC-558 Reel to Reel, Pioneer SG-9500 EQ, Pioneer RG-1 Dynamic Expander and Pioneeer CS-99A speakers. Loud, sounded good but something just wasn't quite right. Then I picked up a pair of HPM-100's for $350 and everything and I mean EVERYTHING changed.Front row concert level no distortion ears ringing but hearing little things in the music I never heard before and It cerushed everybody. Sansui 9090DB, Kenwood, Marantz, JBL L100, Bose 901, JBL L65 Jubal, all fell before the power of the SX-1010 driven HPM-100's. I Wish I still had them.

I purchased a pair of HPM 100's in 1977 and still have them. They are in great shape and sound as good as they did 45 years ago.

I was told by a dealer that the 100s were so underrated that all they did was slap a ring on the port and change the rating. Now there's a story to check out!

I graduated from college in December 1985. I started my first real job in my field (chemistry) in 1986. With my first ever income tax return I was bound and determined to buy me a pair of Pioneer HPM 100s. I had heard a set when I was in high school. A friend of Dad had a pair and he played Boston's first album from a reel to reel player. I was blown away. Ever since that audition I was on course for the HPM 100s. I got my tax return and went to my favorite hi-fi shop. I told the owner I want a pair of Pioneer HPM 100s! He asked if I had time to listen to some speaker comparisons. Sure why not? They had one of those rooms with a bunch of speakers set up and a switch to change between them. He played some music on the HPM 100s and then switched to the Klipsch Heresy IIs. Now I had heard the Klipsch horns a few times and considered them to be my bucket list speakers, but at that time way out of my price range. When the music flipped to the Klipsch I was taken back. They sounded significantly better than the Pioneers. I was a little heartbroken, but bought the Klipschs anyways. I've been a Klipsch customer ever since.

Thanks for your great video. I got a pair of HMP-100 for free on Craigslist in 2006. One of midrange speaker was dead. Fortunately I got one on eBay to replace the bad one. I have being used it since then. It is great speaker. Love it!

I have a set of Sansui floor speakers almost identical to these. Mine have a horn loaded compression tweeter with an L-pad though. And a dome tweeter. Two midrange drivers. 12 inch woofer. To this day, the best sounding speakers ( for music ), that I have ever had. Nothing comes close. Excellent for analog LP play back. Extremely efficient.

I have a pair of the clear enclosures. Found them outside of a second hand store while driving pass and I had to make a U-turn (in Baltimore, east side actually). They have traveled with me in my Marine Corp travels and I've been offered so much money for them. I've only seen them in a old Stevie Wonder video after I had them. Ill refuse to let them go!

Very informative video, I never knew the JBL designer was involved in the HPM-100 WOW, Back then I opted for a/d/s made in USA model 810's the a/d/s line featured all butyl rubber surrounds. I have never had a pair of a/d/s speakers fail even ones that are 40 years old. Mike Kelly from a/d/s now owns Aerial Acoustics and continues to make great loudspeakers.

It looks so much like the HMP-700 which I have that I got for free because the boxes are broken and the 10" woofers aren't original but the tweeters and mids and the crossover are still good and work and sound amazing

3 years ago I had the HPM100 AND THIS IS MAGICAL SOUND!!! So beautiful!!

Love your info on pioneer speakers and audio equipment I have some from 1970s and will send the info when I get a chance. Rick Australia

Excellent.. excellent video! Love listening to all your knowledge. I had a pair of Pioneer Duet 12's (D-12's) in the early 80's. I loved them but cant find a thing on them anymore

Super video! My HPM 100 and HPM 60 (second generation) were powered by an SX 1250, and an SX 5590. Best sound I've ever heard.

I don't know if they would be considered vintage but I have a pair of Paradigm V1 Titans I bought about 32 years ago that are still going strong. I opened one up recently just to have a look and the woofers are in great shape, no issues with the surrounds. For their size they are decent speakers.

Had a pair growing up in the mid/late 90s. I recognized how good they were even then. Subscribed

*The scary thing is you have forgotten more about audio then I have learned in my 68 years on the planet. KUDOS!*

I've been using Pioneer CSG-301W 12" 3-way speakers for probably 40 years now, and I love their clarity; I can hear distinction even between 2 guitars and 2 voices from the same person singing the same note at the same time. They are not heavy duty, but living in a condo unit, I don't turn them up really loud. I'm on my 4th receiver, a Sony 100 watt/channel. The other receivers died, but the speakers still sound good. Someday I may get subwoofers, but for the most part they sound good with my music at levels that don't get visits from the Police. When I got them, I was expecting to get smaller speakers, but these, even at only $80 each back then, were far clearer and crisper than anything else anywhere near their price. Recordings of birds and crickets sound to me like I m outside hearing the real thing. These are showing signs of external wear, but they still work fine. I use "milk carton" type stands. as they lift the tweeter and miss to the right height. and they're easy to adjust and move. They slao don't transfer bass to the floor. Yet are still very clear and clean, but I'd like a subwoofer. When I toe these in and listen to a BluRay Concert with my tVs back-mounted woofers and tweeters, give a really good image of sound stage. My current Pioneer woofers start rolling of at about 55 Hz. I tested my ears, and my hearing goes up to a little over 15k (Amazing cwhen I think of the values I ve put my ears through).

I had a pair, along with an SX 1010. RG-1 processor and a SG 9500 EQ back in the old days. That 1010 was a monster for sure. The whole system took a regular beating almost everyday. It took a long time before one tweeter finally let go. Those 100's kicked ass!

Great vid! In 1975 i bought the (european?) HPM70 version in matt black vinyl cover and they sounded fantastic. They could do a very realistic sound stage as well. The HPM70 are the same as the HPM100 except for the diameter of the woofer, which was 10" instead of 12" in the HPM100, and the HPM70 'only' did about 60 Watts in music load. BUT, they had the cloth cone surrounds, not the rotting foam surrounds!! Since then the Pioneer speakers are used for some experiments with DIY-speakers i made through the years. The Pioneer tweeters i still use in a modified KEF104aB-reference as a replacement of the T26 tweeter. It's paper cone makes a stellar combination with the Kef's Bextrene woofer.

Bought mine 41 years ago just out of high school still have them and my SX780 receiver Need a little cabinet refinishing and recap but never parting with them Cheers from Canada love the channel

I bought a pair of Pioneer HPM 150’s brand new in 1979 great speakers! Just for the record, the cabinets were real wood veneer, not the vinyl wallpaper.

I still have my HPM100s I purchased new in 78’. They still sound great 45 years later.

I was a sales consultant in the 70s at The World Of Sound in West Palm Bch. Pioneer was our best selling line, and my favorite to this day. I still have the CTF900 cassette deck, PL 115 turntable, and my SX 1980. HPM stands for High Polymer Molecular btw.

5:50 pm. I have a pair of HPM100's I bought new in late 70's. Still sound great.

My set up back in the day. Pioneer HPM 100, HK 730 twin power receiver and a rega planar turntable with Orion styles. Life is good.

I had to look this up locally, and found a few sets locally for sale. Not bad priced for what they are. Great video. The crowd that would watch this Im sure would laugh, but the best set of speakers I have currently is a old set of Cerwin Vega VS-80s with a Technics SA-919 reciever. I set them on stands and at low to mid volume I cant believe how good these two way speakers sound. The foam surrounds are crusty, and I do have replacements for them, but dont want to disturb the sound coming out of them by refoaming! I'll have to do it at some point. In my shop I have a set of Cerwin Vega AT-15's (front) and VF-12Fs (rear). As a kid growing up I was amazed at the size and presentation of the Cerwin Vega AT-15s, my childhood dream, and I finally years later got a set.

I own the Pioneer SX850 as well as a pair of HPM100’s. Purchased in 1976. Still a quality product after so many years. Other pieces include a Kenwood 1050CT double cassette deck, Onkyo DX-C210 6 disc cd changer and a Optimus turntable. I still love vinyl.

I had the HPM-40’s with a pioneer SX-780. Jr high thru High school. Gave the speakers to my dad. My nephew poked several holes thru the woofer with a screwdriver. I loved them. I later owned a two pairs of JBL 4312’s. They sounded ok. Sold them and purchased Focal 1027be and never have bought anything again. Sold on the Focals. But I definitely loved the HPM-40’s

I had a set of HPM's and loved them. If Pioneer made them again, I'd buy them again.

I bought a basic stereo in my early years in the USAF. They were like hot-rods, everyone trying to best the next guy. My system was a pair of HPM-100s, an SX-750 receiver and a PL-530 turntable. My only regret is not getting a larger model receiver such as the SX-1050. I think I purchased all this in 1977 and the speakers were about $330 if memory serves. No internet back then, but we would surf through all the audio magazines and try to find the best buy from mail order companies. Still have all these components BTW plus others from a few years later, to include an Akai GX-636 10.5" reel-to-reel tape deck.

Owned a pair for over 20 years. Wish I still had them. They could could do any type of music; Jazz, Rock, Classical. Bass response was awesome.

Well I'm a lone wolf here but here's my speaker experience. I worked for Heathkit during the 70s - 80s as a technician at the factory in Benton Harbor/ St Joseph MI. I eventually took a job at the factory store and we displayed and played all our audiophile products in a living room sized about 18' x 18' with sliding glass doors to close us off from the sales floor. The speakers were 4 AS-1373 200W rms speakers powered by two AA-1640 stereo amps also rated at 200W rms per channel . This setup, blasting 800W of Manheim Steamroller Fresh Aire music that rocked the room and your lungs, made the easiest sales pitch demo ever. 🔊

I purchased my pair HPM 900's in 1982. Exceptional sound and quality to go with my Realistic STA-2080, also purchased in 1982. I also added an ADC Sound-Shaper Ten EQ. In 1993, I turned up the volume a little too high on the stereo and blew out the Styrofoam on the woofers on both speakers. I replaced the woofers with two Cerwin Vega's direct from the L.A. manufacturer. Unfortunately, the speakers did not line up with the mounting screws. However, they were heavy enough to sit in the hole without moving.

Jensen's Model 15 tops these Pioneers. 5 drivers, 15" woofer, 8 inch mid range, 1 voice driver, 2 tweeters, 2 crossover controls. Real walnut side panels. Artificial Slate top. Weighing in over 100 lbs. Very efficient. Rocks at 10 watts rms. At 100 watts, cracks drywall.

I have the HPM-1500 (designed so they can come apart for easier shipping) sold in Navy Exchange catalog, this is like the HPM-150 but the cabinets have Walnut Veneer not vinyl, I still have mine from 1977, the Surrounds had be redone once but they still sound great. I also have the HPM60's that I use for my tv surround, & HPM40s for my garage (both of these have the Vinyl cabinets) .

I have the HMP 40’s. Bought them new back in the day. Still use them today. I have a set of speakers that are not branded I bought them with a sansui 331 receiver in 1975 as a bundle. They sound great for book shelf speakers.

Alice in chains unplugged sounded phenomenal on hpm 100s. I once fried a woofer coil with a sx 1280 receiver

I had a pair of these as a teenager. My first job was selling hifi and I replaced these quickly with a set of Polk RTAs. Interesting to hear the history

I have owned my HPM 100s for approximately 1 month now. Picked them up for $150 at the flea market from someone who did not know what they had. They are in excellent condition, with the one exception being that they lived their entire lives upside down. I assume that whoever had them was doing that because of the popularity of JBL4311s, which have the tweeter on the bottom. The end result is that my speakers, although in nearly pristine condition, have scuffs and marks on the top, which used to be their bottom. I absolutely adore the sound of these speakers, and it has caused me to sell a pair of speakers which I have owned for close to 10 years. They are MB quart and I swore that I would never sell them under any circumstances. Well the circumstances have arisen, and they are for sale. I love my HPM 100s. I will say it loudly and proudly.

I owned a set of HPM-100’s from new for many years. They were great speakers back in the day. The super tweeters went out on both of them or after watching your video, as I was told. I traded them in on some Klipsch speakers. .

Just got a pair of these that are absolutely mint (the manual papers are stapled to the back, even), put into a two channel system full of modern gear. Yamaha a-s501 at 85 wpc, a svs sb2000 pro are the pieces applicable here. I owned a pair a decade ago, but they werent in nearly as good shape as these ones. I absolutely LOVE them. Feel like im listening to my favorites with a new set of ears.

Great video. I never had the HPM-100 but on a cruise when I was in the Navy I bought a pair of HPM-60's. I always loved them but the foam on the woofers dry rotted my wife talked me into selling them. I always regretted that. I never knew until a few years ago that could be repaired...

I still have mine, I also had that CTF900 you have sitting on the shelf behind you in the background, it's since been sold.

Sold my second pair of these 10 years ago. Dead mint and the new owner was really happy to get them.