These are kick ass amplifiers and perform fantastic. Don't overdrive them and they will last a long time.
@rondellschuyler70743 жыл бұрын
As long as you do not overdrive this amplifier, Rm Italy is a good amplifier. Upgrade power wires to 8 guage and always have a fan to cool the amplifier. Heat kills
@Gw0wvl2 жыл бұрын
I've been running the KL500 bipolar transistor version , I've had it years , It's a good little amp and runs all day long without issue .
@brucehaney79543 жыл бұрын
I am very impressed with youre videos on the rm italy amplifier kl503
@robertmeyer47447 ай бұрын
RM Italy are great amps. been getting years now. got the KL 805 on the way. 600 watt PEP. 3 fans . 24V 30 amps. runs 20 to 30 volts. Italy makes great coax. M & P . all copper. even copper foil . I got a 50 ft run of POTAFLEX 7 puts LMR 400 to shame. I put it on GMRS UHF and my receive came up over LMR 400 . some great stuff from Italy ! RM has great VHF and UHF amps.
@McCoyGamingExperience3 жыл бұрын
Finally someone made a video of the 703. I’ve contemplated on getting one, but I’m sticking with the 503. I have one in my truck with the RCI 2950 CD and doing no more than 1 watt dead key into the 503. I would like another 503 for my home base. I want to pair it up with a Uniden Washington base. Back to the 703, thanks for making the video. I was curious on the performance
@almartiniii15413 жыл бұрын
I love the 503p I got from you on my Mckinley. Just got a Lincoln 2+ and was thinking of the 503hd or this amp. Maby you'll have some tasty treats at the shindig in March. Lookin forward to seeing you again bud
@Rooster_Radio3 жыл бұрын
Awesome AL , looking forward to it
@ChristiannTyler3 жыл бұрын
I have a McKinley and Lincoln 2+ I’m getting backswing with my kl 503 and 203 they’re stock besides the conversion did you do anything to your carrier?
@phillipstracner79093 жыл бұрын
Those are good amps. I got a smaller 100watt for my mobile. Right now for my base I'm running an Alan Jumbo tube amp. Maybe I'll get one of those one day.
@tonynorris12503 жыл бұрын
Dang! That's a spicy meatball!!
@foxman3623 жыл бұрын
I would loved see more reviews on it.
@arildoaparecidocosta57293 жыл бұрын
Ótimo eguipamento perfeito potencia 500 vts 13.8 ou 24 vts bazuka Foz do Iguaçu pr Brasil
@ralphcelentano85633 жыл бұрын
Everything Italian is always good... let's face it.. nobody ever dreamed of an Irish sports car...
@goldpipe20033 жыл бұрын
I bet you could get drunk and win a group b rally if there was one though!
@rorydonaghy47423 жыл бұрын
Name me a more iconic car than the Delorean, that's an Irish car!
@goldpipe20033 жыл бұрын
@@rorydonaghy4742 thank you......! Sir!
@ralphcelentano85633 жыл бұрын
Iconic, yes...poor build quality, less than satisfying driving experience...
@nicolalamotta95543 жыл бұрын
Thank you hahah
@MARIOKC13 жыл бұрын
Dang I like that amp !
@lonnien.clifton11133 жыл бұрын
I LIKE THE ROCKER SWITCHES THEY SOUND LIKE THEY ARE GOOD QUALITY
@josephriffle1243 жыл бұрын
sure would like to see the envelope output on an Oscilloscope with a 1 kHz tone on AM, and a 2-tone on SSB.
@adamwhite35843 жыл бұрын
Look up BBI videos. He's legit
@David-qf6ls3 жыл бұрын
Cool Amps Rooster! 🇺🇲👍
@RC-Heli8353 жыл бұрын
180 190 now 195 wholl give me 2? There's 2 who'll give 225? 225 wholl give me 250? Sold to Blade for 250 dollars including shipping!! 😀 When you said 180 190 it reminded me of an auction for a second there Rooster.
@michaelboone56609 ай бұрын
Damn that thing is not playing around it is serious I can probably talk all the way around the world on sideband with that thing😮
@125southernnh23 жыл бұрын
You get a lot of bang for your buck with these amps. Longevity is still something to be considered but my 503 HD is still doing just fine after a good two years on the key.
@Rooster_Radio3 жыл бұрын
503hd is my no2 pick of rm amps
@micheloneill70692 жыл бұрын
so over time. do you still think the 503hd. a better amp over the 703
@micheloneill70692 жыл бұрын
@@Rooster_Radio so do you still think the 503hd a better amp over the 703 ?
@bblod48963 жыл бұрын
I just saw one of those amps today. It's much larger than it looks on your video. Nice amp though.
@ronedwards82393 жыл бұрын
Had one went back. 50 watt dead key it would swing up to 200 RMS & stay there with no audio. It was oscillating. Went with the 503 no issues.
@Rooster_Radio3 жыл бұрын
I've never had issue with one, but I can believe that. The more mosfets you add, the more possibilities you have of these things happening. The 503hd is the best amp they make in my opinion
@ronedwards82393 жыл бұрын
@@Rooster_Radio Exactly, agree the 503 is the best. I modified mine to a medium drive.
@gingercat5552 жыл бұрын
Good video ... you have just persuaded me to but one ... have used RM amps and had good results over the years ... Thanks for the video.
@Rooster_Radio2 жыл бұрын
I'll have a couple in this week. They do a good job
@Full_Spectrum_Dominance3 жыл бұрын
Would this amp perform well with a stock bearcart 880 ??
@shadowphantom25673 жыл бұрын
Hey Rooster. I've been watching your amplifier videos, and I"m interested in exploring this more prior to a purchase. Can you answer a question: On the initial keying of the mike you were at 180 watts. You selected "Peak" on your meter and the amps went to 500. Can you explain this? Which is the radio actually transmitting at when you talk since you were speaking both times? I guess I'm not understanding why BOTH need to be done if the radio is transmitting at one the one?
@EdzashedFudwinkle2 жыл бұрын
Low power of 12w on high when he 1st keyed up getting 180w, he then went to 35w input and got 490w 👍
@jeromesanders4715 Жыл бұрын
WOW THAT 500 IS OK BUT I WOULD LIKE TO TRY THAT 703 WOULD BE GREAT FOR ME OK ROOSTER 💪💪💪
@alzeNL9 ай бұрын
Ah the Anti-QRP brigade on the superbowl :) Still, nice to hear strong signals in the UK when these get used even without skip lol.
@gennaodis7861 Жыл бұрын
Thank you for your comments to my question
@KC9RXP2 жыл бұрын
Do they make this in a HD version?
@Bernard-John3 жыл бұрын
HI,good interesting video, I have the same lineair amplifier, I am very pleased with the build quality and performance, but I would recommend a 60 amp minimum power supply, thanks from Rotterdam 👍
@LEEBO-562 жыл бұрын
Hello Rotterdam..DESPERADO 56 north of Tampa Fl. waving a hand.. just wondering how your Italy 703 is working out for you. Be safe and stay well. 73's
@Bernard-John2 жыл бұрын
@@LEEBO-56 Hi,actually I sold it,good amplifier no complaints 👌, but now I have a Amateur radio licence I use a Acom 1500 linear amplifier,,,,bit of a different league 🙃, hopefully your amplifier is working well,,,,73 from Rotterdam 👍
@tommydangelo24798 ай бұрын
i run this on a 50 amp it runs good
@Bernard-John8 ай бұрын
@@tommydangelo2479 hi,I suppose it depends on how hard you drive the amplifier,,but in my situations 60 amp minimal,,,not enough power amps, has a negative effect on the modulation,,,good luck 73s from Rotterdam.
@tommydangelo24798 ай бұрын
@@Bernard-John i do always like a little more amperage then less i will not disagree with you
@edwardgreene56453 жыл бұрын
Nice! What something like that run a fellow?
@daveschreiner96513 жыл бұрын
Looking for a sweet 16 and a Texas star 350 variable drive. Also looking for an HR2510.
@1022videogates4 ай бұрын
Run a STRYKER into it. 1w dk swing 100 pep. It can take it. Ive seen 650+ with 100w pep input. Dont be scared of it. Been running mine that way for a couple years with no issues. Just keep it cool
@Rooster_Radio4 ай бұрын
Want you to think about what you're saying. 35 watts in 500 out- 14x the input drive 100 in 700 out- 7x the input drive You're putting in 65 more watts to gain 150-200. Doesn't make sense and it's a good indicator that the amp is being over driven, diminished returns.
@elwyncarrol38833 жыл бұрын
Looks like a Alpine Amp
@mikehamilton72063 жыл бұрын
Always wanted to get my hands on exactly that amp. But always Wind up a day short. 🤣 oh well, maybe some day.
@Rooster_Radio3 жыл бұрын
I'll have more in soon
@djcartwright4243 жыл бұрын
Great video Rooster. I really like these amps. And that's a damn good price what you're asking for these amps especially considering the prices I've seen on ebay.
@timmygilbert13713 жыл бұрын
Know ya dont like to give prices on here but maybe just a ballpark figure ? :)
@djcartwright4243 жыл бұрын
@@timmygilbert1371 I don't want to speak for Rooster but I know he gets tied up at times and it might take a while to reply but go to his KZfaq channel, swipe left until you see the COMMUNITY heading and read the 1st post.👍
@gingercat5552 жыл бұрын
Just a quick question ... at high power setting output what is the peak AMP current draw needed by a power supply ? Thank you for any info on the question.
@Rooster_Radio2 жыл бұрын
I would use a 50 amp supply minimum
@foxman3623 жыл бұрын
I would use this on cb base station out in rural area.
@gennaodis7861 Жыл бұрын
Great video. How many amps would a vehicle alternator have to put out to keep battery and accesories working. How big an amp would you need for this to work on a base station Thanks
@ASmith-vu2wo Жыл бұрын
The specs sheet stated 50 Amps, I'd still suggest adding a super capacitor to prevent any drops and smooth out the incoming power.
@ASmith-vu2wo Жыл бұрын
50-75A Ambulance alternator would likely be needed. I would add a 2nd battery dedicated to this monster in a mobile setup and of course a faraday sized super capacitor to keep the power flow even without any drops. Perhaps 1/0 copper cables with 50amp fuses directly to the battery.
@EdzashedFudwinkle2 жыл бұрын
Would of been nice to know how many amps were used during the hi,med,low, would a 50a psu be fine at 20w input.
@Rooster_Radio2 жыл бұрын
With only 20 watts going in yes. I'd recommend 60 amps for full output on high
@EdzashedFudwinkle2 жыл бұрын
@@Rooster_Radio we struggle for decent psu's in 🇬🇧 50a plenty of, only 1 60a with 2, 4mm banana plug fittings you'd have to get 60a electrical wire into. Appreciate the reply anyway 🐓, I'm sure Santa will sort it for me mate, cause I've been a good boy this year. Haha 😄 Enjoy the videos mate, keep them coming in 2022 👍
@mononcyoyo2 жыл бұрын
@@Rooster_Radio Maybe a 75A would be overkill, but if I run it let's say, 14.2-14.5V instead of 13.8V @60A min , will then less amperage would run it less hot?
@greydogmusic Жыл бұрын
I use a Tekpower 50A. 25 watt drive. Terrific amp. It has punched me through when needed. Never been close to warm.
@bs-cc4nw3 жыл бұрын
@Rooster CB Radio Connection how many volts were you running the 703 at? was it at 14.5v? or the standard 13.9?
@Rooster_Radio3 жыл бұрын
14.5. my truck runs around 14.3-14.5. Where are you seeing 13.9 as the standard?
@bs-cc4nw3 жыл бұрын
@@Rooster_Radio I see, okay. And well, I meant standard as you usually see specs of equipment being listed at around that voltage. I really like the RM Italy line and am verry happy you did a review video of it. Great work by the way! I am happy someone finally put the 503 (your previous video) and the 703 behind a Bird . There is a lot of opinions that the 703 can't hit close to 500. I am looking to get the 703 soon myself (the prices for these just went up around the web by the way) and keep telling people that if you put the right wattage and AMPERAGE (yes the 703 does need a steady 60A) behind the 703, you will see it swing close 500 peak, so I'm really happy you got this video up. 73s!
@ric6026 Жыл бұрын
What Gauge size power wire would you recommend to run to the KL 703 in a vehicle ?
@EDH286 ай бұрын
10
@irishluck74615 ай бұрын
Can I get a recommendation for 60 power supply for this amp ??
@tf72743 жыл бұрын
On this amp or a texas star 500v...do you save your amp by running it at half power output...or do you burn out another section of the amp? My motto is run 2x power supply that it requires, and run your amp at half power...aka if you want 200w...buy a 500w and run it half power. Thanks.
@Rooster_Radio3 жыл бұрын
Everything I own I run it to it's max safe operating capacity, and rarely have failures
@tf72743 жыл бұрын
@@Rooster_Radio i was told if I run my 500v at half I will burn it out faster because the amp is burning off the excess watts into another component.
@rondellschuyler70743 жыл бұрын
@@tf7274 not true.
@tf72743 жыл бұрын
@@rondellschuyler7074 Which part? Curious. Thanks for replying.
@zooyawk45262 жыл бұрын
Rooster. Would you happen to know the class of the 703? Thanks in advance.
@elonlovesyou3 жыл бұрын
Also, I will not put more that 1.5 dead key watts into my 503.
@JamesCutlervk2tim3 жыл бұрын
I want to see the 2 tone test on this thing......
@michaelkirkwood33162 жыл бұрын
I would like to purchase one of these to use at home
@1220GoldenGate3 ай бұрын
Can you match this to an anytone at5555n2, on AM, the anytone does 60pep, so just back down to 35?
@Rooster_Radio3 ай бұрын
Same as the 503hd, it will work if it hasn't been modified and you back the rf power down.
@1220GoldenGate3 ай бұрын
@@Rooster_Radio Thank you, 73.
@fbaeet3 жыл бұрын
Where can I buy one of these 703s
@1teddy19793 жыл бұрын
Hey rooster you got any of these 703's in stock right now? Thanks
@thesuccessfulbarber Жыл бұрын
Andersons radio supply. 400$
@terellsmith1545 Жыл бұрын
Hey just a question off the topic, would it be cheaper to replace the 4 pills ,relay and upgrade other parts or just buy another amp?
@terellsmith1545 Жыл бұрын
Oh yeah and how much would the price be for either or?
@Rooster_Radio Жыл бұрын
What amp are you referring to
@terellsmith1545 Жыл бұрын
Well it says (Smokin Joe) and it's a 4 pill I got it from a guy in Texas I don't remember the name of the cb shop but I think he worked on it before I bought it and it worked really good for 2 years and I noticed that it wasn't keying on the meter and I inspected the inside and saw that the one big resistor has black discoloration on it so I just unplugged her I just need advice on what to do so I don't waste more money Thanks.
@user-zx4vt4rz4l6 ай бұрын
Looking for rm Italy 503 hd . hopefully you have one and how much
@foxman3623 жыл бұрын
You should do a giveaway you'll get more viewers on your channel.
@Rooster_Radio3 жыл бұрын
I just did a giveaway yesterday. Maybe you should pay attention
@TheSkoto13 жыл бұрын
Where are u in tn?
@fatcat43845 ай бұрын
i had to hit it with 80 peak watts to get 500 out pep don"t know how you got that much out of it ? 500 watts for that amp is rated at ssb. but who knows ? i know if you run over 14.8 volts you will burn the mosphets out thanks for the video monster mash out :).
@francoisdavenne21622 жыл бұрын
what power input is for to go output 500w? please
@Rooster_Radio2 жыл бұрын
35 pep/ssb
@shanduallah79953 жыл бұрын
Hola, how much?
@lEeRoYdiCkeNson2 жыл бұрын
how come when he goes from AVG to Peak he never shows carrier? Not only him, but others do it also. If you look quick enough it looks like carrier went up when going to peak. Which it shouldnt. That would mean peak is jacked. But, its done so quick, it could be a optical illusion.
@Rooster_Radio2 жыл бұрын
The meter will initially bounce up when you switch to peak, because the kit is battery operated and that's the "battery test". Carrier won't change on peak unless fan noise is being picked up to generate a small amount of peak power. If I need to make a video demonstrating this I'll be glad to. No smoke and mirror show here
@lEeRoYdiCkeNson2 жыл бұрын
@@Rooster_Radio 10-4.. thanks for the reply. it just seamed like when everyone goes to peak mode they are quick to audio. Wasnt implying anything. but may more out of habit i guess. Keep up the vids!
@dnewnova6 ай бұрын
when will you have these in stock again
@Rooster_Radio6 ай бұрын
Just did a couple days ago and sold out. Might be getting a new one in on trade
@paulgarrett48192 жыл бұрын
Will this amp work on 10 - 80 meters?
@DeltaXray4442 жыл бұрын
It covers 25-30 MHz on all narrowbands AM FM SSB CW and data modes.
@KC9RXP Жыл бұрын
February, or March of next year coming up, I'm coming for one of these. Think you'll have them?
@Rooster_Radio Жыл бұрын
You're asking me if I'll have something 3-4 months away? That's hard to say
@KC9RXP Жыл бұрын
@@Rooster_Radio maybe I should have phrased it different, are they normally in stock? Or something you get when you can? Thanks in advance
@Rooster_Radio Жыл бұрын
@@KC9RXP i try to keep them available yes
@KC9RXP Жыл бұрын
@@Rooster_Radio good stuff. I'll get at you then.
@waynedoomad257311 ай бұрын
Do you have rm italy kl200p 703
@chrispierce2942 Жыл бұрын
What are the dimensions and price
@027MC73 жыл бұрын
How much dead key did you use?
@Rooster_Radio3 жыл бұрын
2 watts or so
@chestertillson48193 жыл бұрын
price
@minibikemadman11 ай бұрын
ugh I'll stick to copper board boyzzz..I got fets in the 94hp and that's the farthest ill go.
@Rooster_Radio11 ай бұрын
RM Italy are actually pretty tough. I've probably sold 1000 or more between the 203,203p, 503,503hd, 703. Can't even think of anyone that's had a failure
@thesuccessfulbarber Жыл бұрын
Can you push these with a stock 955?
@Rooster_Radio Жыл бұрын
35 watts peak
@thesuccessfulbarber Жыл бұрын
So just turn the power down
@bobbygreene56883 жыл бұрын
 Lotto Annihilator
@daveschreiner96513 жыл бұрын
Does Texas star still in business?
@joerowland73503 жыл бұрын
Yes
@kevinmccool37192 жыл бұрын
Unfortunately yes they are but the quality of the Texas star amps has a lot to be desired. The rm Italy amps are unbeaten in build quality and if not overdriven they will last a long time. They have clean output on a scope and spectrum analyzer unlike Texas stars which are usually dirty.
@mikeyf1032 жыл бұрын
What will it deadkey FM?
@greydogmusic Жыл бұрын
30 watts input it will deadkey 500w on FM. My SWR is 1.2. Meter is a MFJ.
@mikeyf1033 ай бұрын
Thanks,I've had two since then,I've recently got a bla 703..sorry for the late reply 73s
@alanchatfield42712 жыл бұрын
You said you were going to test it on am/fm but you didn't, a shame
@Rooster_Radio2 жыл бұрын
Maybe you didn't notice Am and FM are on the same mode switch. If it works on AM it works on FM. The uniden 66 doesn't have FM mode, but if an amplifier functions on AM it will function on fm
@alanchatfield42712 жыл бұрын
@@Rooster_Radio OK cool,, would love to know what it does with a 30 watt dead key input on fm,, anyway good work thanks for replying
@Rooster_Radio2 жыл бұрын
You as well Alan
@DeltaXray4442 жыл бұрын
@@alanchatfield4271 ive just bought one, a thirty watt fm/am input will do 435 watts using 8 awg on a 60amp psu, i tested mine on FM.. it draws 52amps on these specs.
@greydogmusic Жыл бұрын
@Alan Chatfield .. 30 watt deadkey on FM is 500 watts on my MFJ. 50 amp power supply. SWR 1.2
@lanyonleno5268 Жыл бұрын
What are the dimensions?
@Rooster_Radio Жыл бұрын
170x295x62 mm Found in less than 30 seconds on Google. You should try it sometime
@MARIOKC13 жыл бұрын
I need to get that and move my other to my Moblie.
@shaneshane-ko8zz3 жыл бұрын
I've got a 203p that I have beat to death I tried to kill it it has not died yet LOL
@2ct4202 жыл бұрын
worst amp ever I have one in my mobile and it has a bad solder joint rm italy says these amps are not for mobile use
@user-tz2xk4cz5z3 жыл бұрын
Man, are you sticking that mic into your mouth?
@Rooster_Radio3 жыл бұрын
Up my ass actually but I appreciate your concern
@user-tz2xk4cz5z3 жыл бұрын
@@Rooster_Radio, you don't have to be a smartass, but that's your choice. In reality, nobody gobbles-up on a mic like you do in all the vids you've got, so why do it for a useless show of swing with wattage that never gets used? I started watching your vids for some mobile tube amp info because you showed up in search results, but all I see is Smoke-N-Mirror salesmanship here. Good Luck buddy. It's your channel..
@Rooster_Radio3 жыл бұрын
@@user-tz2xk4cz5z I bet you like to gobble more than a microphone. Am I right?
@user-tz2xk4cz5z3 жыл бұрын
@@Rooster_Radio, I bet you never graduated high school...
@Rooster_Radio3 жыл бұрын
@@user-tz2xk4cz5z Actually, I have a bachelor's degree. Ill be glad to send you a picture of it and my 🐓🐓🐓