PhonoPreAmp

Scope device files created using the Scope SDK

Moderators: valis, garyb

hubird

Post by hubird »

Hehe, at last I do understand (a bit) what the print on the front of my old HiFi amp mean, underneath the (two) Phono input selectors :smile:
it says:

Phono1 ----> Cartridge----> -MM (selectable: High/Low input capacitor) or -MC.

I used to have selected Phono1/MM/low.
I can't remember what Phono2 does, all text seems to be directed to Phono1 selector.

At least there is something to choose :lol:
jabney
Posts: 98
Joined: Sun Feb 10, 2002 4:00 pm
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Post by jabney »

As shipped, the phono pre-amp is set with a hot output (+3) and a superhot input. I tried it and it took awhile to get it sounding right. As the device unpacks now, I give it a '9.'

Set both the input and output gains of the phono pre-amp to zero. That gets closer to '10.' Connect the phono pre-amp directly between the Scope input and Scope output. Control the volume with a mixer channel. That's getting close to a '10.'

More later, back to listening for now.
wolf
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Joined: Tue Dec 23, 2003 4:00 pm
Location: hamburg
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Post by wolf »

Hi Jabney,

thanks for your comments.
I adjusted the in/out gain so, that it fits to my technics 1210MK2, which should be sufficient for most turntables.
What do you mean with "connect it between scope in and out" ? I use it as insert in a mixer ..

cheers
Wolfgang
jabney
Posts: 98
Joined: Sun Feb 10, 2002 4:00 pm
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Post by jabney »

hi Wolfgang,

Operating on the theory that the least processing is the best sounding processing, I connected the Pulsar II Analog In to the in of your phono pre-amp. I set its input gain at '0.' I set the output gain of the phono pre-amp to '0' then connected the phono pre-amp's out to the Pulsar II Analog Out. No software faders were added to the path.

Volume control takes place via a Crest mixer on the output side. On the input side, I have tried three different microphone pre-amps - each of which has at least one set (True) of level contols. Besides the True Precision 8, I've used the Great River MP2-NV and the Peavey ('triangle' series) VMP-2.

Your phono pre-amp is revealing enough to show differences in mike pre-amps, though the requirements for amplifying a microphone differ from the requirements for amplifying a magnetic phono-cartridge.

I have yet to try directly into a converter due to cabling issues.
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