A/V Analysis
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I have always known +4dBu to be the pro standard (+4dBu with up to 20dB of headroom). At 3.875V the HTP-1 is outputting exactly 14dBu (10dB headroom over +4dBu).My desire? The whole world of consumer hifi has standardized on 4 volt output. Pro gear goes way above that. It seems like the AV manufacturers got together in a back alley and decided to shrink the output as much as they pleased.
Please help me out with a link or document number (I am both an AES and CTA member). I cannot find any reference to a 4Vrms (+12 dBV) consumer line level standard. If this is the case it is possible that Monoprice will switch from dBu to dBV as their standard unit. As I have shown, the unit will put out 4V without clipping. It was just your method of trying to get to 4Vrms that bumped you over into clipping. Since the HTP-1 volume increments in 1dB steps, it was skipping right over 4.0V going from 14dBu (3.875V) to 15dBu (4.36V) which we now know is in the clipping range.
No disagreement from me. I agree 110%. But it should be noted that all of the 16ch immersive processors that output +18dBu (6.15V) or higher all list at $12k USD or higher.To get state of the art performance where you have true reference levels and dead quiet noise floor you need to go higher in voltage. Here is the Purifi Amplifier: https://www.audiosciencereview.com/...easurements-of-purifi-1et400a-amplifier.7984/
(BTW, the Purifi is quite impressive!)
I think you missed where I took issue as well:Thanks. As I noted, I have set it to highest it would go (7 volts) but it is clipping around 4 volts.
There does need to be further clarification from Monoprice regarding this setting.The Amplifier Sensitivity setting defines the clipping point of the amplifier. There does appear to be a mistake here. The Amplifier sensitivity setting allows a range of 0.1V - 7.0V. However, anything over 4.0V does nothing.