This is something that I had no idea about - I think you may want to do a video or an article explaining that. If someone has a 85 inch LED TV which consumes 250 watts, a gaming console (PS5 or XSX) that consumes another 200 watts on a 15A circuit, they have 1350 watts left for their AVP and AMP. I have no clue how much power an AVP consumes and some have toroidal transformers in them. Let's say the AVP consumes up to 150 watts in this scenario which then would leave you with 1,200 watts left over. As you pointed out in previous articles, Class A/B transformers are more inefficient and can actually reach crazy wattage numbers even if they are just pushing 100 watts for 7 channels (essentially it takes more power to generate the 700 watts of sound) Oh fudge, I totally forgot about the subwoofer. How much power does that thing need? Even if it's a SVS 3000 Micro, the specs for that say it needs 800 watts (let's forget about the 2,500 watts claim). Does that affect the amplifier then? I guess I'm lucky I don't have a PC with a 4090 that needs 500-600 watts or a 2nd sub - I'd need to rewire my house which I probably should have done before I built my basement. But for many people, the location of their home theater limits them to a single circuit. But I'm now worried that I'm starving my AVR and buying an external amp without a separate circuit to feed it would be a silly thing unless I can find an amp that has 200% efficiency (essentially it generates more sound than the power it consumes) 🙂Maybe that's the future!

Thanks for validating that. Well before you got into the analysis, my 2 mathematical brain cells had told that 16 channels at 200w would over tax the standard consumer wall mains outlet. So, is the manufacturer expecting end users to install a dedicated high power mains supply to achieve optimal performance?

YES.....im in uk,so we are lucky 120volt needs 25 amp? circuitbreaker. 240volt needs 12 amp? Circuitbreaker. We use 2.5mm diameter copper wire which can carry around 15 amps.... Because we are on a "ring main" each socket gets 2 wires from breaker, wired around a room in a circle with 5? Double mains socket outlets on it.... So, as a circle, each socket can get 15 + 15 amps to it (potentially)but like Christmas lights, in a real world senario, other things (like washing machine, dryer, kettle etc) are also driben off that "ring main"..... Or "normal" fusing for each ring main is 13 amps, but i dare say one could safely up that to 15 amps and still be safe before heat damadge could occur. (Ive seen 1mm wire off a 5amp light circuit power a 2 bar electric fire that drew 8amps of power, and neither either heated up or blew the breaker...... Soooooooo we're safe in uk, for usa, i guess get a 25amp circuit breaker (maybe for an electric shower or higher) run your equivelent of 4mm diameter copper wire into a dedicated socket..... (when i say 4mm, i mean in copper diameter csa, cross sectional area,).... and thats for the amp and power amplifier only.... ONLY !..... other items (record player, streamer, tape deck etc) can be run off a normal circuit at 20 amp breaker for you, and 13 for us..... Lear ohms law w=i×v and v=ixr where w is whatts, i is current or amperage, v is volts, and r is the resistance..... Watts can be dived by volts to determin current or amperadge if an item just give its usadge in watts value 👍🏻🙂👌 2kw ÷ 240v = around 8 amps.....so use a 10amp fuse to be safe.... same maths can be used in america..... (should be the same all things being equal 😂👍🏻) 2kw ÷ 120v = 16 amp..... soooo thats expensive regarding fuses and circuit breakers, and 2kw isnt much really.... I guess at 120v one would realistically need 50 amp circuitbreaker (or 2x 25amp breakers) to run your avr set up safely...... Alot of people from their wall sockets use extension plugged into extention, pluggerd into extension etc...... this is a VERY BAD PRACTICE.... as the nearest extension to the wall socket has to carry the loading of all the other extensions plugged into eachother like a chain of lights....... Best practice, use first extension, and then plug the other 6 extensions straight into it, and then load them up with devices, instead of chaining extensions one after another..... Make sure the wires in extensions are very thick and have the highest ratings for load possible (dont skimp unless you want a house fire) 💥🧯......! If you need a long run to your avr, 1st option is running double mains cable to your outlet socket, if you need to use an extension, for the first extension, rip out the cable and get thicker cable, (i believe earth cable can be quiet thick, and you can get sleaves at either end denoting which is earth, live and neautral, after using a meter set to ohms, to check if you have got the wires correct, platt them in a weave, (you will loose 33% of the length, so buy extra) and then insulate them to hold them together, thats how to make a higher current low loss extension, you can also buy exteriour fancy shielding and heat shrink covers for the cables to make them look prity, and them fat plugs...... i would also run that wire into a mains purifier instead of a normal extension if funds allow....... Hope that helps, as that is what i have done..... ana-dia-alog (my italian friend) has more on this in one of his videos how to make mains cable, and re-wire the mains purifier to get less ground loop problems and more current to devices (basically wire each plug from the board instead of to the "bars" that feeds all the plugs.... cut the bar and feed each plug directly.... If this is a little "whooooosh" over your heads, go watch the video 🙂👍🏻..... Hope this helps..... take care.... 🇬🇧

Did you get it and if so how are you finding the marantz I’m considering getting the amp and processor combo myself

I didn't test into a 2 ohm load but I've been hammering this amp in bridged mode with my 4 ohm Perlisten S7ts and it's been working like a champ.

and if you plug both amps into the same outlet, you still aren't getting rated power at "All channels driven".

@@Audioholics Exactly, what happens with 15A outlets. Is there any point to me getting a 8 channel Hypex 502 which has 350 WPC all channels driven. That's 2.8kW which is way over my 1.8kW. Not to mention that I have my TV connected there, my AVR, and my Xbox/PS5 and they all draw power. And it's all going through my Belkin Surge Protector. What powers would I be getting? Is there any point to getting an external amplifier if I already have a Marantz SR8000 series for 5 channels (bi-amping LR)?

@Tech Samurai only for sheer dynamics. Most people don't have speakers that would benefit, though.

You have to go multiple circuits in your room. Have it professionally done though so you can avoid grounding noise problems! I added extra circuits in my room and I was astonished him much my powered subs opened up with all that extra current available! 👍

@@Geerladenlad Unfortunately, I've finished my basement so there's no way to rewire anything for my main system which is in the living room (not in the basement). Can that be done at the junction box?

not if you're happy with your current amplifiers.

Yes! I'm absolutely loving the sound I'm getting from this combo powering my Perlisten S7t system. It's very dynamic and clean and great transparency. I will elaborate in my formal review.

The high frequency region is still tricky for them. From what gene showed this one looks really good through the audible range, but we still see some roll off there, and there may be some more frictions there with certain speakers, ones that aren’t readily perceptible in these static resistive load measurements.

It's tough - I love toroidals...

I agree not for the price! I instead went for two 8 channel Monolith 8250x amps...And the saw Buckeye and became very Mad...Lol

@@michaelslocumbsr.2286 haha

What power do the Buckeyes deliver for 8 channels driven?

@@techsamurai11 350W @ 8 Ohms for the NC502MP version.

@@techsamurai11 NC252MP Power, all channels driven: 180w per channel @ 2ohms 250w per channel @ 4ohms 150w per channel @ 8ohms

Most modern speakers today typically don't dip below 3.2 ohms. With the rare exception of large monolithic towers with lots of bass drivers, of course.

@@Audioholics the measured impedance may not, but the phase angle that gets created can create an effective impedance that's a lot lower, with current demands that are similar.

And later at the 12 minute mark where you said it delivers 200 watts per channel at 7 channels. Was that just the 1Khz test? Seeing that at the 10 minute mark you said it was dipping out at 70Hz ish? (Assuming less power when FR isn’t flat?)

Honestly I didn't dig too deep into this issue since it was all 7CH driven and it WAS a relatively slow sweep of 500ms and not a real world use scenario. This was my only test result Marantz wasn't able to replicate.

@@jvonengeln Anytime I test an amp with more than 2CH drive, it's done as a 1kHz sweep. 2CH and below are continuous fullbandwidth.

Umm no. Adding 2 more channels for a very low use case isn't worth the cost.

If rack space is an issue, then yes. Amp 10 bridged is pretty awesome for front 3 LCRs.

I definitely need to test the Storm since I have it in my theater room.

not this year, unfortunately.

@@Audioholics Wow, really? I thought it was on the short list to review?

@@abefroman. Oh I can get one right now. I'm just swamped with other projects, unfortunately.

@@Audioholics Copy that. Does this mean Matthew isn't either, or...?

Marantz likes lower numbers for higher end products. The -10 is their reference flagship. PM-10 for best “pre main” (integrated amp). SA-10 (super audio CD). Now AV and AMP 10 for the home theater flagships.

Agreed. Makes no sense. 😅

Another great video I'm based in the UK and awaiting delivery of the AV10 and Amp10 I'm planning on connecting this amp to my new Kef R11 Meta I see you mentioned against bridging but do you think bi amping would be OK??many thanks

@@Tofartony yes biamping is safe for 4 ohm loads on the Amp 10.

Sure if you want to use sound reinforcement amps in home theater and you don't care about noise and distortion, Crown is a cheaper alternative.

AV10 is a significant upgrade on many levels. Better DACs, build quality, cleaner preamp and most importantly Dirac and Audyssey, 4 independent sub outs and better hdmi stability and functionality.

Yes absolutely

Thanks Gene always great advice

Excellent. I've been loving music on this gear.

There's no such thing as overkill on this channel.

Shane didn't like the sound bc the batteries in his Audioquest cables died 😉 This amp sounds great in my room.

I checked this and the AMP 10 was clean full bandwidth, fortunately.

Good to know. Thanks for the reply.

Ud be surprised that analog amps have the same problem, thus the "slew rate" spec and "full power bandwidth" (reviewer didn't mention at what power he tested at, critical, amateur to miss this). This is an area Bryston was famous for.

​@@Audioholics but at what power?? Critical part of that measure. Ie "slew rate", class D is notoriously low, even the best tech out of TI analog. ( pretty amature to miss this in 2023).

@@gregdee9085 rarely get to more than 10 watts at 10khz+, so doesn't really matter at what power. But, Purifi modules are clean, even at full power. Fact that the frequency response didn't droop at full power is also a good sign for these modules. Class A/B amps tend to 2nd/3rd harmonic distortion, which is smooth & warm sounding. Class D (they're still analogue, by the way - class D is not digital) tend to have higher orders, which is why they can sound hard and brittle.

Yes but you already have good amplification. I probably wouldn't change it if everything is working.

He uses crappy cables

Haha. I'm thinking of getting an AV10? I saw your comment on AVS which said if channel count is below 15, get an AV10 over a Trinnov and pocket the change? Does this still stand? I'm about to pull the trigger on one or the other. :) @@Audioholics

@aaronao1 absolutely 💯. We have affiliate links for all 3 processors in the video description, but I would still pick the AV 10 or AVM90 over Trinnov for 15CH or less processing.

I never heard the fans engage in my testing or in use

what are the amps u refered to 2k cost for 5 channel amps?

can i know what are the other 2 grand 5 channel amps u're referring to?

sound quality is not great with marantz honestly. Denon sounds way better.

Not when you're measuring SINAD > 100dB. Nobody uses alligator clips to connect their speakers.

why ? it really does not matter. f those barel things :) aligator clips work fine ;) hehe

That's great. If you want a professionally shot video of this product, check out @therealShanelee. If you want technical facts, and test measurements NOBODY else provides, deal with my water drinking and shooting at my work desk.

@@Audioholics Gene, the content you provide and how you provide it is exactly why I have followed you for so long and years before your KZfaq channel. As a fellow engineer (different field but started in EE) (and paisano ;) I am very skeptical of claims and exaggerations made in the field of audio and therefore very much appreciate your balanced objectivist and subjectivist points of view. There are very few people I respect in this hobby and you my friend are one of those few. Keep up the fine work and keep telling it like it really is!

@Audioholics I’ll admit there was a time I used to want the same thing. After years of watching I actually have grown to appreciate your authentic purity to focus on the details, data and info vs producing a trendy and flashy show

Cambridge Audio EVO 150 for $3,200 is a steal and sounds great! bit.ly/CambridgeEVO150Delorean