Ampeg BA115 Bass Amp Falling Apart (Literally)

Back in August of 2017, one of these combo bass amps came through the Unbrokenstring Shop with cracked solder joints, which were probably a result of brittle lead-free (RoHS) solder on the circuit board.  The owner of this Ampeg saw that post and called up the Unbrokenstring Crew to ask if this amp could be…

Ampeg B2-RE Bass Amp Gets New EQ Potentiometers

Bass players use SERIOUS hardware, and this Ampeg B2-RE is a serious, heavy, high-end bass amp.  So why in the world does Ampeg use those tiny little plastic slide pots for the equalizer controls?  The Unbrokenstring Crew digs in. Ampeg is a name that needs no introduction nor elaboration.   Three of the plastic handles…

Ampeg BA115 Bass Combo Amp Repair

Mysteriously, this modern Ampeg bass combo amp quit working.  Could the Unbrokenstring Crew make it right? The unit appears to be completely dead, with power present at the fuse holder.  Let’s go inside to take a look around.   More goodness from St. Louis Music.   This picture documents the wiring polarity on the main…

Ampeg SVT-200T Bass Head Update to IEC AC Power Entry

This absolutely mint-condition solid state bass amp head came through the shop for a quick once-over.  More significantly, the owner wanted one of those new-fangled IEC AC power jacks installed in place of the existing power cord. These units are highly regarded by many bass players.  Some consider them to be an equal to the…

Ampeg SVT6Pro Bass Amp Repair

This Ampeg hybrid bass amp became intermittent during an extended gig.  The unit was ready for a million-mile checkup anyway, so it was time for this guy to visit the Unbrokenstring workbench! Externally, this unit is in gorgeous shape!  Let’s look inside. Swollen filter capacitors are never a good sign. I’m cutting the hot glue…

Dropped Ampeg SVTIII Pro Bass Amp Quick Fix

This Ampeg hybrid amp was dropped.  And of course, it quit working.  And, of course, the guy who borrowed it was the guy who dropped it.  Can the Unbrokenstring Crew get it going again before the friendship gets damaged? The exterior of the unit is in great shape, because it was in a hard sleeve…