Hi Erlerob
If you can safely ship the Pioneer Spec 4 one guy I'd send it to Mike Bettinger from GasAudio.net. Mike is very competent with repairs and restorations. He restored a Sumo Nine for me with great results. Another repair guy that has done great work for me is Scott Gramlich of SGCustomSound.com.
Best of luck with the repair.
If you can safely ship the Pioneer Spec 4 one guy I'd send it to Mike Bettinger from GasAudio.net. Mike is very competent with repairs and restorations. He restored a Sumo Nine for me with great results. Another repair guy that has done great work for me is Scott Gramlich of SGCustomSound.com.
Best of luck with the repair.