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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Re: Passive transformer preamp Vs. Line stage preamp posted by Tom R. on March 22, 2005 at 04:27:58:
I am not sure of the DAC's output impedance, I am using a 6N1P
grounded cathode (150 Ohm to ground) output section with a Audio Note output transformer . I never measured the output impedance but
I believe it to be low? I dont have the equipment to check.
any thoughts?Instead of trying to second guess, I'd recommend EMailing Peter Qvortrup and see if he can give you the answer.
In the meantime I'd have to ask, do you really need all that voltage gain? I can't seem to find the input sensitivity spec for the SLM-70s, but I'm thinking it's probably sufficient enough that both your Sony and your AudioNote DAC would be able to drive them into clipping which means that the 20dB (give or take) of voltage gain from the PVA transformers would be overkill in the extreme.
se
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Follow Ups
- Re: Passive transformer preamp Vs. Line stage preamp - Steve Eddy 10:09:19 03/22/05 (4)
- Re: Passive transformer preamp Vs. Line stage preamp - Tom R. 06:21:24 03/23/05 (3)
- Re: Passive transformer preamp Vs. Line stage preamp - Steve Eddy 19:23:54 03/23/05 (2)
- Re: Passive transformer preamp Vs. Line stage preamp - Tom R 11:02:56 03/24/05 (1)
- Re: Passive transformer preamp Vs. Line stage preamp - Steve Eddy 14:19:41 03/24/05 (0)
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