worth the repair?


I Just purchased a McIntosh MA 252 and connected it to my vintage Marantz 2270 and Tascam 200 CD. My speakers are B&W 603 s2.I turned it on and before playing a cd I head a loud crackle and one speaker went dead. I fear my connections are bad, need help from an expert. Question is, is it worth repairing the speakers with this setup? I always liked them, but maybe time to upgrade, like to B&W or Sonus Faber.Opinions?  What do you think B&W would charge before I pay the cost of mailing. 

pharmacylaw

Just to clarify, do you have the Marantz set up as a preamp, with your Cd player plugged into one of the Marantz inputs?  This would give you the CD player and the FM tuner as sources.

From there, do you have the Marantz Preouts connected to the MA252 inputs, using it as the amplifier in this setup?

If the CD plays fine through both speakers, but the FM doesn't, that tells me the issue is in the Marantz receiver somewhere.

@pharmacylaw 

Which ever amp terminals your speakers are connected to, disconnect the wires at that location, get a volt meter and check the DC offset voltage between the postive and negative on those terminals.   It should be in "mllivolts (mv)".  Less than 50 mv is desirable.   If it is registering much higher than that, then, your amp needs service. 

@pharmacylaw before you do anything else, take that amp out and have a technician go over it. You will most likely fry every speaker you connect to it. 

Must be missing something.  Why connect vintage pre into a new integrated?  What was the intent?  Best of luck sorting it out.

Try the Marantz 2270 by itself to see if it's the speakers or the McIntosh. Disconnect the McIntosh completely.