thinking...

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I have corrected the original circuit, hope have this right. Inner loops provide local feedback to the inverting opamp, two inverting opamps provide positive global feedback. Any comments?

And other option...

Is this a correct implementation of the multi-loop feedback into inverting Op amplifier buffered circuit? Hence inverting input has lower distortion I’m trying to configure feedback loop and overall gain. Any comment is more than welcome.

My short list, top 10, PCDP only: 1.DCP-150 2.Optimus 3400 3.D-25 4.D-555 5.D-303 6.D-900 7.Aiwa XP-7 8.EJ01 9.CT570 10.XPS-900

This is an extract from one of my e-mails "Due to increasing incidents of credit card fraud, we have had to join the growing number of companies who make it a policy not to ship to unconfirmed Paypal addresses. If you would like to have your address confirmed through Paypal, simply go...

Thanks for all replies, looks like one of the necessary DIY electronic part is hard to obtain in Australia

Any idea? Is it possible to find them in Melbourne?

And PCDP goes solar! No batteries no problem!

And D-555 in full glory.

And this is D-555 with my batt powered valve amp

Pls educate me how to post pic larger than 25k

I took this pic last year when my SlimX2 arrived. Since that my collection grown up another four players

Currently only 24