seduction gain trouble

balancedtriode · 2140

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Offline balancedtriode

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on: January 10, 2012, 09:14:04 AM
just finished rebuilding my seduction phono stage, problem is there is very little volume. resistance and voltage checks are fine. I just cant figure out what went wrong. maybe a loose connection? any help and/or suggestions would be greatly appreciated
thanks,
-coltrane

Thorens TD-160 Custom(rebuilt by me) with SME 3009 arm
Bottlehead Seduction
Extended Foreplay-III (build underway)
Stereomour Power Amp conversion (Heavily Modded)
Klipsch Cornwalls' with Vertical Horns

Offline Doc B.

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Reply #1 on: January 10, 2012, 09:19:40 AM
If voltages are all OK the next thing to check is usually the RIAA equalization components, to see if maybe they have been miswired. That can drastically change the gain. Also make sure you have the proper value resistor across the input, i.e. 47K ohms and not 47 ohms. Don't ask me why I suggest that...

Dan "Doc B." Schmalle
President For Life
Bottlehead Corp.

Offline balancedtriode

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Reply #2 on: January 12, 2012, 06:31:14 AM
Thanks Doc, I miss-wired the same cap in both channels. It's working now and sounds great!

Thorens TD-160 Custom(rebuilt by me) with SME 3009 arm
Bottlehead Seduction
Extended Foreplay-III (build underway)
Stereomour Power Amp conversion (Heavily Modded)
Klipsch Cornwalls' with Vertical Horns

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