Questions for you Axiom Amp owners...

Posted by: Bayne

Questions for you Axiom Amp owners... - 09/25/12 02:09 PM

Iím not sure how many of you are there yet, but Iím wondering if I can get some feedback about your new amps?

How warm does your amp get? Does it require good ventilation?

I only have access to one outlet. Currently I have my JVC projector, Denon AVR, and Oppo BD player connected to a surge protector. Do you think adding an ADA-1000 would be too much for that one outlet?

I have a Denon AVR-3808. Does anyone have one of these paired with an Axiom amp? If so, how well do they play with one another?

Iím considering a 7 channel ADA-1000 to drive my 2 M60ís, VP160, 2 QS8ís and 2 M2ís. My HT room is about 2100 cubic feet. For normal listening conditions do you think this amp is overkill, or do you think the added headroom would be well worth the upgrade?
Posted by: Boltron

Re: Questions for you Axiom Amp owners... - 09/25/12 03:17 PM

I have a 3 channel 1000. In fact I just connected an energy meter to it yesterday to see what the power consumption is. I can pass some numbers along in a few days.
Posted by: J. B.

Re: Questions for you Axiom Amp owners... - 09/25/12 04:06 PM

if you look at my system (check the Gallery), it's all connected to the same 15 amp. circuit.
i watch movies at Reference Level and do the same (realistic level) for music.
total amp power: about 5200 Watts.
total room size: about 2900 cu.ft.

Result: i've never blown a fuse yet and i guess i would still have quite a ways to go before that would happen.
high power is headroom; a guard against clipping and distortion,
and 99% of the time, only a small fraction of it is used.

the "product overview" has this about the ADA1000:
"For rooms under 2,500 cubic feet and normal sort of volume levels the 1000 series is perfect".

personally, i consider Reference Level to be a "normal sort of volume".

i would not worry. ENJOY!!!
Posted by: tomtuttle

Re: Questions for you Axiom Amp owners... - 09/25/12 05:31 PM

Unless you are planning to get a dedicated processor some day, I'd be tempted to just get a 3 channel amp for the L/C/R and let the 3808 continue to power the surrounds.

But, I'm a cheap bugger.

Good luck and have fun.
Posted by: J. B.

Re: Questions for you Axiom Amp owners... - 09/25/12 07:06 PM

tom's suggestion makes a lot of sense.
Posted by: JohnK

Re: Questions for you Axiom Amp owners... - 09/25/12 09:35 PM

Bayne, I don't have Axiom amplifiers, but can certainly comment on the general "headroom" point. You didn't specify your listening distance, which is far more significant than home room volumes(which don't need to be "filled" with sound at the level needed at your listening position), but at a typical distance of about 10' your 3808 can drive your speakers to above safe(to your hearing)listening levels. Added headroom is meaningless unless it's actually used on occasion. Unused headroom is simply that: unused.
Posted by: Bayne

Re: Questions for you Axiom Amp owners... - 09/25/12 11:14 PM

Originally Posted By: JohnK
Bayne, I don't have Axiom amplifiers, but can certainly comment on the general "headroom" point. You didn't specify your listening distance, which is far more significant than home room volumes(which don't need to be "filled" with sound at the level needed at your listening position), but at a typical distance of about 10' your 3808 can drive your speakers to above safe(to your hearing)listening levels. Added headroom is meaningless unless it's actually used on occasion. Unused headroom is simply that: unused.


John, my listening distance is 12 feet from the front wall and about 10.5 from the front of the speakers. The room is 19.5 feet long and 13.5 wide with typical 8 foot ceilings. You can see pictures of my theatre in the gallery section. I'm still debating on whether or not I even need an amp of any kind--that's why I'm looking for any advice I can get from you helpful folks.
Posted by: MarkSJohnson

Re: Questions for you Axiom Amp owners... - 09/26/12 06:27 AM

Originally Posted By: JohnK
Unused headroom is simply that: unused.

Yeah, but Reserve Headroom is exactly that: In Reserve! grin
Posted by: tomtuttle

Re: Questions for you Axiom Amp owners... - 09/26/12 12:55 PM

What about Max Headroom?

Posted by: CV

Re: Questions for you Axiom Amp owners... - 09/26/12 02:22 PM

Originally Posted By: Bayne
How warm does your amp get? Does it require good ventilation?


So far mine has only been mildly warm when I've felt it, but I haven't specifically tried to run it hard for a stretch of time and then feel it. I also have it on open shelving with plenty of clearance, so I can't say how hot it would get in an enclosed space. Basically, I'm no help, but I felt like I had to say something since I own Axiom amps.
Posted by: MarkSJohnson

Re: Questions for you Axiom Amp owners... - 09/26/12 02:31 PM

Originally Posted By: CV
So far mine has only been mildly warm when I've felt it, but I haven't specifically tried to run it hard for a stretch of time and then feel it.


Again, CV: Male Prostitute.
Posted by: CV

Re: Questions for you Axiom Amp owners... - 09/26/12 02:34 PM

Originally Posted By: MarkSJohnson
Again, CV: Male Prostitute.


laugh I guess I can't fight fate.
Posted by: Boltron

Re: Questions for you Axiom Amp owners... - 09/30/12 12:30 PM

After several days of taking power readings, this is what I got for my ADA1000-3. Tests done with M80s and a VP150:

Max Current: 0.96A
Max Watts: 119 Watts

These numbers are actually really great considering how much power this puppy is putting out. My ancient (25 year old) Bryston 3B (200W per at 4 ohms) in similar conditions consumed 2.45 Amps and 298 Watts and it is only driving two channels (M80s). Now I am sure current Brystons must be more efficient but still it is an interesting contrast. Also, I not trying to be negative on Bryston, we all know they are world class awesome amps.

On a couple of occasions, I touched the amp and it was quite cool. It doesn't seem like heat will be an issue at all.

How I tested, nothing very scientific...

I watched a few movies with the volume up past 0db. I watched Inglourious Basterds last night. Sound track was awesome, especially the end when they blew up the cinema. I had it cranked up and watched that scene twice. The sound put a smile on my face smile For movies of course the amp was powering 3 speakers L,R,C.

I also played music with volume cranked, in this case it was only 2 speakers L,R.

Actually, when listening to music, it was amazing how clean the sound was even when cranked up. I played mostly Jazz but tried some old rock like Pink Floyd, Dire Straits and others. These were all 24bit 96K FLAC files. Joni Mitchell's song Comes Love (Both Sides Now album) at 24/96 sounds awesome, the dynamic range is mind boggling. Even though it was very loud, not a hint of distortion. Listening to old classic rock loud with no distortion is kind of strange actually, I grew up on this music and I don't think I ever heard it sound better. Man, this amp is nice smile

So, at the end of the day the power consumption numbers for these amps look pretty darn good.