While we work on an email glitch please email mike@bettingeraudiodesign.com. Thanks
Our Rebuilds Include:
- Current, top-of-the-line parts for each application
- IEC connector
- Instrumentation-grade power cord, 6.5' long. 14 gauge on amps; 16 gauge on preamps
- Dual binding posts
- Preamp input connectors
- Calibration control upgrade
- Meter circuit rebuild and bulb replacement, circuit mod to dim the lamps, bezel polishing
- Chassis cleaning and polishing. We remove as much age-affect as possible.
- Hardware, feet, and fuse-cap replacement
- Ampzilla replacement fan if needed, with NMB industrial grade quiet ball bearing unit.
- Son of Ampzilla option: a back-panel mounted power switch included in restoration
- Resolving current problems with the unit's functionality to ensure longevity
- Resolving all known failure issues and age-related parts, trim-pots and connectors.
- Optional J-FET input stage replacement to replace bi-polar transistors. Sonically this enhances low-level detail retrieval and provides a startling improvement in low noise performance. They add a sense of purity on vocals and strings thought to be impossible in transistor amplification. Call or email for more details. The additional cost is $350.
Complete hand-crafted restorations of Great American Sound and SUMO components
MUSICAL VALUE AT ITS BEST!
Our beginnings
Mike Bettinger began GAS Audio in 1981 when Great American Sound went out of business. The equipment was too good to let it turn into doorstops. We've restored over 2300 pieces throughout the world, to the musical delight of many GAS owners
We completely disassemble each product and rebuild it as new. We use nothing but the best parts for each application, we retain the best of the original semiconductors, and replace everything else for performance, musicality, and longevity. In essence, it's a new piece of equipment when it goes back home to you! Sonic improvements include a very clear articulation on vocals, staying uncluttered as music becomes more complex. Subtle, fragile supporting instruments maintain their individuality in the presence of more dominating parts of the music. The bottom end is crisp and fast, with a solid reduction in the low level grain that you previously heard on vocals and strings. The midrange is fully fleshed out, the highs sparkle, and the bass is deep and taut. There is a distinct sense of audible bloom, body, and solid imaging, with a broad soundstage and accurate decay, making the overall presentation closer to live music. It is enveloping and involving, solidly dynamic, fast and fluid.
Photo Gallery
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