The Bedrock Amplifier Company was founded 1984 by Brad Jeter and Ron Pinto in Nashua, New Hampshire. In 1988 they were joined by Jay Abend and Evan Cantor. Jeter and Pinto left in the early 1990s and the company moved to Framingham, Massachusetts where it was run by Cantor and Abend until it folded in 1997. Bedrock Amplifiers were all handmade from the cabinets to the electronics and were typically based on Vox AC-30 type designs.

Source: Bedrock amplifier tribute page