Have a look at schematic, please ( Preamp Technics SU-C1010 - to buy or not ?)

Groundloops · 17th October 2005, 10:46 PM

Got the occasion to buy this for € 150,00. Is it worth to give it a shot and tweak it ? Seems to be interesting, battery driven, any input with relay and with 6 channels (plus center and sub). Maybe good for a setup with a Behringer DCX2496 ...

http://www.support.panasonic.co.uk/s...010/aC1010.pdf

Schematics are on page 15 - 23.

What do you think about it ? What would be the most effective modifications ?

Thanks !

rrrremus · 16th December 2009, 02:08 PM

I tweaked my Technics pre-amp almost completly.
The most important thing to do is to replace the JRC 4558 op-amps with OPA2134 or something like that.
I also changed the op-amp supply module with op-amp regulated supply.
And if you want to cancel the 10uV noise from the selctor ICs , replace them with replays.

17th October 2005, 10:46 PM	#1
Groundloops I´m amazed! diyAudio Member Join Date: May 2004 Location: Hamburg / Northern Germany	Have a look at schematic, please ( Preamp Technics SU-C1010 - to buy or not ?) Got the occasion to buy this for € 150,00. Is it worth to give it a shot and tweak it ? Seems to be interesting, battery driven, any input with relay and with 6 channels (plus center and sub). Maybe good for a setup with a Behringer DCX2496 ... http://www.support.panasonic.co.uk/s...010/aC1010.pdf Schematics are on page 15 - 23. What do you think about it ? What would be the most effective modifications ? Thanks !

16th December 2009, 02:08 PM	#2
rrrremus diyAudio Member Join Date: Sep 2009 Location: Timisoara	buy it I tweaked my Technics pre-amp almost completly. The most important thing to do is to replace the JRC 4558 op-amps with OPA2134 or something like that. I also changed the op-amp supply module with op-amp regulated supply. And if you want to cancel the 10uV noise from the selctor ICs , replace them with replays.

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