[goodguys]

Hello and thanks for reading this reply.
 
 A few members have upgraded the opa2604 found in the firestone fubar 2 with the opa627 and reported a substantial improvement. Does anyone know how this is done as the pin arrangement for the opa627 is very much different from the opa2604.
 
 Many thanks in advance. John.

 

[Armaegis]

You will need a single to dual adapter. See their site: http://www.audiophileproducts.com/opamps
 

 

[goodguys]

 
 Hi. Thanks for the reply.
 
 Is it possible to bypass the opa2604 opamp all together, my thinking is the best kind of opamp is no opamp at all. Theoretically
" removing " the opamp should realise an improvement in sound quality as it bypasses componenets. The fubar dac is running into a 300 watt rms quad  amplifier of which 30 watts is sufficient for me, do you think it will be loud enough with the opamp bypassed.

 

[Armaegis]

I don't know how they have their components confgured inside, so you'll have to ask them yourself. If you were feeling brave, you could just shove a resistor in and connect the + input to the output on each side (assuming it's non-inverting, otherwise the - terminal)... but I take no responsibility for that