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#199827 - 03/10/08 07:09 PM Re: A1400-8 [Re: rmk1]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13341
Loc: Iowa
rmk, welcome \:\)

I know you had some reservations on AVSForum after your problems, I'm glad you have changed your tune on the 1400.




Edited by sirquack (03/10/08 07:11 PM)
_________________________
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana

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#199957 - 03/11/08 06:18 PM Re: A1400-8 [Re: SirQuack]
dllewel Offline
connoisseur

Registered: 06/20/05
Posts: 1189
Loc: Utah, USA
Hi rmk,

Thanks for the nice review. I hope you continue to enjoy the amp.
_________________________
-Dave

M80s VP150 QS8s EP500s
ravenmanor.com/cinema/

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#199992 - 03/11/08 09:03 PM Re: A1400-8 [Re: dllewel]
rmk1 Offline
buff

Registered: 10/02/05
Posts: 46
Loc: Northern Calif
 Originally Posted By: dllewel
Hi rmk,

Thanks for the nice review. I hope you continue to enjoy the amp.


Thanks Dave, even with the Audyssey issue (if that's what it is) I'm pretty sure that the A1400-8 will be a fixture in my HT for a quite a while.

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#199995 - 03/11/08 09:08 PM Re: A1400-8 [Re: rmk1]
StuntGibbon Offline
devotee

Registered: 01/24/08
Posts: 374
At what levels do you start to really detect a difference from your older setup? Obviously it should be able to really push at high volumes, but do you notice any differences on the lower ends too?

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#199997 - 03/11/08 09:14 PM Re: A1400-8 [Re: StuntGibbon]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13341
Loc: Iowa
According to other 1400 owners, yes.
_________________________
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana

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#200014 - 03/11/08 09:52 PM Re: A1400-8 [Re: StuntGibbon]
rmk1 Offline
buff

Registered: 10/02/05
Posts: 46
Loc: Northern Calif
 Originally Posted By: StuntGibbon
At what levels do you start to really detect a difference from your older setup? Obviously it should be able to really push at high volumes, but do you notice any differences on the lower ends too?


My Sunfire amp is a very good high current amp (600 WPC @ 6 Ohms). Someone going from an AVR might notice more of a difference than I have at lower SPL's. That said, I was looking for an amp that could handle the dynamics of modern movie sound tracks and that is the sweet spot for this amp. I have also been impressed with rock concert DVD's and orchestral pieces. Anything with a lot of layers and complexity is handled better by the A1400-8 than any other amplifier I have experienced.


Edited by rmk1 (03/11/08 09:55 PM)

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#200035 - 03/11/08 11:07 PM Re: A1400-8 [Re: rmk1]
ihifi Offline
local

Registered: 10/06/06
Posts: 280
Loc: CT
The higher the SPL, the bigger the difference I noticed between the A1400-8 and the Yamaha DSP-A1 (110w/channel). At SPLs above say 65-75dB, you no longer need blind testing in my room; the difference hits you and puts a grin on your face. The amp can take the M80s to a level of performance at high SPLs that I never experienced or believed possible with the Yamaha. What I also found surprising was that despite the high SPL levels, my ears felt satisfied rather than disturbed; i.e., that sense of disturbance one feels from loudness did not seem to exist at SPLs that I knew would with the Yamaha (likely from clipping, distortion, and compression). At lower SPLs, I think I hear a difference, but I would prefer blind testing to be sure. I have never owned a separate amp before and honestly all the amps that I auditioned (Krell TAS, Anthem A5, Lexicon LX-7, Classe, and some others) in different rooms sounded wonderful to me. Lets just say that to my untrained and very biased ears, the A1400-8 sounds at least as good as these.

John
_________________________
John
Our HT


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#200042 - 03/11/08 11:59 PM Re: A1400-8 [Re: ihifi]
haylo75 Offline
veteran

Registered: 03/20/07
Posts: 131
Loc: Kansas City, MO USA
Good thread here. Coming from a Rotel RSX-1057 to the A1400-8, I could tell a difference in transients typical of action movie soundtracks even at moderate volumes, where peaks were less than 90dB at the listening position. Bass reproduction is where it really makes a difference IMO. I can recall only one time where I was able to drive my M80's to audible distortion while using the A1400-8, and that was at an ungodly high volume (110dB continuous). I auditioned a Rotel RB-1080 2 channel amp for a weekend and, while it drove the M80s well, I was able to trigger its thermal protection circuit without a hell of a lot of effort. I suppose the RB-1092 would've been a fairer comparison, but it wasn't available at the time of my audition. My current A1400-8 doesn't ever get too hot, though I had a channel go out on my previous one due to what Axiom believed was thermal failure. I'm following up with them now, especially after reading RMK's messages about Audyssey possibly being a factor.
_________________________
A: Epic 80 * 600 / Integra DTC-9.8 / A1400-8
V: Samsung HL-S6187W / Tosh HD-XA2 / PS3 / Oppo 970HD

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#200043 - 03/12/08 12:11 AM Re: A1400-8 [Re: haylo75]
Mojo Offline
connoisseur

Registered: 01/21/07
Posts: 3292
I presume then that the bass reproduction benefit is not realized when the system includes a powered sub.

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#200044 - 03/12/08 12:12 AM Re: A1400-8 [Re: rmk1]
Kpt_Krunch Offline
regular

Registered: 03/12/08
Posts: 7
Hey RMK - thanks for posting here. I really like the fact you had problems with the first two. Don't get me wrong, I'd hope you and everyone else would have zero problems, but you don't know how a company will stand behind a product until problems arise. Though the internet is a very very small place, and if a company didn't stand behind their products, they wouldn't be around long.

Hopefully this amp will last you. One nice thing I've found about electronics, especially amps - if they're good out of the box, they should be good for years to come.

The Audessy thing doesn't sit right with me though. Did the good folks over at Axiom indicate they'd get back to you with why (if) Audessy affects their amps. I assume Audessy (never had a processor that used it) put out a certain type of testtone not liked by the amp, or else what else does it do?

Also, and forgive my ignorance here, but why would you have to re-calibrate your system? I thought the amp would just supply the power required by the speakers based on the volume level set by the processor. I could see if you got a different processor, but why do it for a different amp? I put a 100 w/channel HK PA2000 (bridged) to my mains. When I eq'd it afterwords (with an RS analog meter) there were no adjustments required, sounded the same. However, at louder volumes there's no breakup in the sound (where I feel the difference comes in).

So if you (or anyone else here) cam enlighten me as to why you'd eq your whole system with an amp change, I'm all ears.... so to speak \:\)

Thanks again for sharing your thoughts RMK .... this amp could very well find a home in my h/t once I'm ready to buy!

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