Killingbeans
Major Contributor
True, but both I/V stages failing completely out of the blue? Sounds unlikely to me.
Many thanks indeed. I'll pass it along to the repairer.It's just a simple iv stage into the output, textbook ess stuff, as they were ess staff. Any good tech can fix it.
FWIW both balanced and unbalanced outputs outputted simultaneously, constantly - so weren't selectable..True, but both I/V stages failing completely out of the blue? Sounds unlikely to me.
Just to say - I'd only be connecting a Melco N1dX music server to the May. There's no volume control. Magma have also said the impedences of the May and my pre amp are fine to work together; but I'm still concerned about 5.8v being so much higher than the 2v I found to be optimal previously. Tambaqui has a volume control - at twice the price..I am sure that any competent electronics technician/engineer would be able to get (any) DAC analog output stage going again.
May's analog stage is a bit hot, especially on XLRs. I use HQPlayer volume control with my amplifier.. so it is not really an issue. However, May's low output impedance (working in a class A mode, burning 60W of power at all times) will easily match any pre-amp input impedance... even a really low one of around 10kOhms. Your pre-amp input impedance is 50Kohms balanced, so not a problem.
You could also reduce the pre-amp gain. Contact Gryphon and see what they have to say. It can't be that hard... If this is a no-go, then just use a volume control inside your player/streamer.
John,Also it's better to show multitone with down sloping spectrum(pink for example) and NID(No Interharmonic Distortion). Also at different amplitude and/or with different numbers of sines.
Does anyone know an accurate EQ config to compensate for the roll-off on the Holo May?
Topping D90SEDoes anyone know an accurate EQ config to compensate for the roll-off on the Holo May?
The VPG resistors drift is max 0.002% per 2000 hours, so it already drifted too far for a 16bit dac in 2000 hours, no?
The impact of errors from resistor drift depend upon whether they are all drifting together or randomly. If they all drift the same then it is only a gain error.
Yes, generally.And if they all drift randomly, it raises the noise floor?
Records have achieved 50~60 dB dynamic range IIRC, and the best tapes push 80 dB though 40 and 65 dB respectively are more in line with what I recall for most examples.Considering how people rave about the "clarity" of vinyl playback, despite of its 11dB(?) best case dynamic range, I really wouldn't worry about resistor drift in discrete R2R DACs. IMO, this whole resurgence of R2R is based on nothing but romantic notions anyways. So, even if the drift turns out to become an actual audible issue in the future, the hobby community is more or less guaranteed to rebrand it as a desirable feature
Records have achieved 50~60 dB dynamic range IIRC, and the best tapes push 80 dB though 40 and 65 dB respectively are more in line with what I recall for most examples.