FYI per the Stereophile measurements of the AHB2 the gain per sensitivity setting is kind of counter intuitive and as follows: setting 22dbu = 9.2db gain 14.2dbu = 17db gain 8.2dbu = 22.9 db gain. basically the lowest sensitivity setting = highest gain
The higher the level of the incoming signal the less gain you need, seems pretty straightforward? Those aren’t really sensitivity settings they’re the incoming line level.
It will be super easy to tell once you connect everything anyways. don’t worry. The volume will go up noticeably.
Kal, you have 3 AHB2’s running correct? which amps did you choose the AHB2 over or had in the past which you preferred the AHB2 ? just curious as to how good of an amp do you consider it to be.
Something flakey about link management here. Try copy/past this into Google: : power amplifier rubinson site:www.stereophile.com
all I see are reviews that you have done. Is that a link to one site which lists all the power amps you have reviewed?
equates to sensitivities for full output, 28.3 V 9.75 V, gain 2.9x, 9.2 dB 4 V, 7.1x, 17 dB 2 V, 14.2x, 23 dB
Yes. That returns a list of all the amplifier reviews that I have done. I wish there was but, afaik, there is no way to do it.
Ah Ok. Got it now. so after all those amps you chose the AHB2 as your reference. Im assuming you don’t find the AHB2 flat or non-3 dimensional sounding ? Thanks
you may have seen this one, but another measurement suite SoundStageNetwork.com | SoundStage.com - BHK Labs Measurements: Benchmark Media Systems AHB2 Stereo/Mono Amplifier
Did ya hear that @Helom ! lmao! thanks Kal Don’t mind me and helom. We are goofs Yeah I find my AHB2 paired with the LA4 amazing and detailed. you run yours with a Preamp or the multichannel DAc you have?
No…but guys these days call each other bros…lil bro…little bro, or bro all the time. You know what I mean, bro?
the absolute SN is 3 dB lower since noise stays about the same but you double power (+3 dB) when you look at relative noise the stereo seems quieter. Not that you could hear either. full power Output noise voltage, A-weighted, inputs shorted -103 dBV, 7.1 uVrms, Stereo Mode -100 dBV, 9.8 uVrms, Mono Mode They say dBV can be used to estimate audible speaker noise: dBV + speaker sensitivity - 9 dB = SPL dB noise stereo, speaker 86 dB Audible noise = -103 + 86 - 9 = -26 dB SPL Hearing threshold is 0 dB for a youngster mono ~ -23 dB, so 3 'louder', but you can't hear it. The typical room ambient SPL is +30 dB, >50 dB below ambient room noise! ~ 1 W Output noise relative to 2.83 Vrms, A-weighted, inputs shorted -112 dB, Stereo Mode -109 dB, Mono Mode It is even lower at normal listening levels. Stereo -35 dB below threshold, - 65 dB SPL below room! Mono -32 and -62 dB SPL No matter how you slice it you are not hearing ANY noise from this amp, stereo or mono. Impressive