2. amps-preamps
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Benchmark AHB2 amplifier - what to expect?

My current amplifier, driven by Benchmark DAC3 HGC, is Rowland model 102.  It is basically couple of Icepower 200ASC modules packed into resonance free heavy case, with additional input differential amp THAT1200.  These modules were used in many small class D amps, including Bel Canto S300 and M300.  I feel that Benchmark AHB2 might be a good choice for few reasons:

- It matches my Benchmark DAC3 (electrically and physically) 
- It has neutral sound, that I like, with very low noise floor (according to reviews)
- It could possibly extend trebles a little more  (trebles are slightly veiled now).

My speakers are Hyperion Sound HPS-938, (a giant killer), but not too many people are familiar with them since company went bankrupt few years ago.  They tend to sound warm (soft dome tweeter), with wonderful midrange.

I'm looking for anyone familiar with AHB2 and class D amps.  I found favorable review of AHB2 vs NAD M22, but it might not apply to my situation since M22 is based on different modules (Hypex).  My birthday is coming in a month and I could buy myself a present.  I will be grateful for any comments.


128x128kijanki
aberyclark
1,355 posts
 
Has anyone owned the ABH2 for a considerable amount of time and then decided to change? Just curious on long term impressions on the Benchmark.

I've been running back and forth in my mind between tubes (Quicksilver, Rogue stereo 100, mc275) or stay with SS. I figure if I get an abh2, I can always add "color" thru my Rogue Rp-5 premap by changing tubes. However, if I go tubes, I can adjust my subs for any lack of bass. 

Decisions.
ssnkssnk
21 posts
 
@aberyclark

I have owned AHB2 for a year (using it with Benchmark DAC3 HGC).
I am very impressed with the clarity, tonal balance, sound staging and separation. I am adding second one to add more power for my inefficient ATC speakers. Not that the one AHB2 cannot drive the speakers. But I sometimes do feel the need to crank it up more than probably I should.

I did try A21 in my system, but it didn't compare with AHB2 at any level (other than power), and I sold it right away.

Now waiting for the second AHB2, and stay with it for a foreseeable future.

This amp has re-defined 'music' for me.
jetter
3,033 posts
 
A21 = $2,500

2 AHB2 to equal power of A21 = $6,000

Several posters wanting two for enough power

Not everyone's choice in amps in $6K range
aberyclark
1,355 posts
 
Since my speakers are 101 db efficient and my current 80 watt amp will run you out of the room, I'm probably good with a single unit. However, I always wanted monoblocks.
ssnkssnk
21 posts
 
Hi jetter,

Yes I agree of your assessment of price comparison between one A21 and 2 AHB2.

What I didn’t made clear in my earlier post was, since AHB2 can run distortion free till the last watt (100 watt), it can go very loud. I am upgrading because I want more of this goodness, but there is no real push for me to upgrade to monos.

AHB2 is all quality watts, right from .1W to 100W. For me, it is the end of search for a perfect system.
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