Highest power pentode for OEM use in Marshall, Hiwatt, Ampeg SVT.

Excellent response, a little harder sounding than GT-6550-C.

GtrGear: GT-6550-R sounds like a clean 6L6 with more headroom.

The 'proof' this is the most clean powertube: popular for bass and HiFi.

Excellent choise for 6L6-amps creating a 'BIGGER' soundstage.

Keep in mind substituting 6L6 into 6550, 6550 tubes are a little bigger sized.

                    

GT6550c Matched duet €99,- €49,-   IN STOCK, special offer!