[doobooloo]

If I just make an adapter to make the BUF634 pin out "work" in the EL2001 socket of my META42, would it work without further adjustment?

 

[KTpG]

Yes. Simply adjust the pinout of the BUF634 to fit the pcb pinout of EL2001/2. But, since you are using BUF634, you may want to include something to the side where you can add a resistor or jumper from V- to pin 1 (BW) to put it into wide bandwidth for better sound. (yes... it does sound better to my ears, though some may argue)

Back in my days of extreme bored (now it it is just great boredom) I made many a PCB, and one of them was a BUF634 to EL2001/2 adapter. It is lost, and I will never make them.... so have fun with it.

 

[stereth]

Yep. I did the same thing on my Jung multiloop board. Adjust the pinout and it's a direct replacement. Sijosae made a nice-looking adaptor I saw on an old thread, two stacked sockets with a couple of jumpers.

And be careful of operating in wide bandwidth mode. I'm not sure of the specs, but I believe the quiescent current jumps from 3mA to about 15mA, which can triple the overall current draw of your amp.

 

[KTpG]

Yes, WB mode does make the current draw go from actually, I think 1.5 to 15.

This is no problem for me, as I only deal with home amps now. (got HD580, and they don't travel well- no one can hear my beautiful music but me HAHAHAHA

) If you are a portable person, do watch the BW, though. Check out the graphs in the datasheet so you can approximate a good resistor value with best performance improvement/current draw ratio.