Benchmark Preamps and Amp - For real?

I've been using the AHB2 for a couple years.  I wanted an amp that introduced no coloration through noise and that's what this is.  It can be run as monoblocks or stereo.  You can also adjust the input sensitivity (gain).  I've never had a problem powering either my speakers.  More than enough juice and I run my speaker pair with one amp at the lowest sensitivity, or gain.

@yyzsantabarbara  Sorry, haven't been back to this thread. With both the DAC3 and AHB2 set for no attenuation, as recommended by Benchmark when used with the LA4, there does seem to be greater transparency.  A bit more depth to the soundstage, a bit more detail in the texture of voices, etc.  And the volume control is much more pleasant, with easily repeatable levels, and it's easy to make fine volume adjustments by remote. 

I have the HPA4 which replaced the Bryston BP26 in my system (driving the Benchmark AHB2 amp). I found the HPA4 more transparent than the BP26.
Have used the HPA4 to drive a pair of AHB2 amps in mono mode - super clarity and reveals the best in music sources. 
Had no intention to change that setup but stumbled across a good deal with some big ATC active SCM100 speakers, so now using the HPA4 to drive those directly - couldn't be happier. 
Not for people who want to use the preamp to influence the sound of sources - that's not what Benchmark are about.

I’m thinking of an AHB2 to go with my PSAudio BHK preamp. 

After having read several reviews (Stereophile, SoundStage, etc.) as well as several online discussions (such as this one), I've taken a chance and ordered an LA4 (don't use headphones). It will be driving a dbx DriveRack 4820 which in turn powers a pair of Crown K2s (below 150 Hz) and a Yamaha P7000S (above 150 Hz). Subs are the Tannoy VS218-DR; mains are the Tannoy SuperDual T300 (with custom cabinets and passive Xovers). The curious—or crazy—part of the exercise is that the LA4 will be going up against my present preamp, the Boulder 1012 which retailed, 15 years ago, for six times the current price of the LA4. Now I've gradually abandoned audiophile amplifiers for the pro amps mentioned above, and don't feel shortchanged. Now we'll see what the ears say when the little LA4 goes up against the big Boulder. . .