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2020 Schroeder SA9+ Head with KT66 Tubes - $4,500 (berkeley)
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Based on extensive R&D as well as years of refinements, the Schroeder SA9+ is the final stage in the evolution of the famous DB7, used by Nels Cline of Wilco.
Please see the description below from Tim Schroeder for more information on the amp's technical aspects. All I can add is, wow! This amp lives up to the hype -- three-dimensional clean tones that blossom forth from silence and sustain beyond expectation. With extensive tone controls including a three-way bright switch, this amp paired perfectly with any guitar and speaker compliment I chose. The amp was produced September 28, 2020. I am the second owner but the previous owner, a collector, had never plugged it in. I purchased the amp through Tim Schroeder who brokered the deal. I'm listing the condition as excellent since there is a small tolex tear (see final picture).
From the Schroeder Amplification website:
This high-headroom musical instrument amplifier was originally designed with Nels Cline and Wilco. Known for its clean sustain, chime, and clarity, it rewards players who have a dynamic touch. Basically what you put in is what you get out...
Sonically the SA9 and the SA9+ are very similar and share the same control layout and functionality. The differences between the SA9 and SA9+ versions are that the Schroeder Amplification SA9+ Amplifier Head has a newly designed power transformer with additional taps. Also, additional power supply components in the SA9+ are used to convert and fine-tune certain voltages used in the preamp. I have also developed a Solid State rectifier circuit developed specifically for the "+" model.
The results are immediately noticeable. Almost ZERO 60 cycle hum is generated by the amp. Notes emerge from a black or silent background, allowing for very subtle nuances and colors to be recognized while we experience a much smoother and relaxed tone. Effortless and instant power makes for a more dynamically rewarding playing experience, satisfying on all levels. Due to the new rectifier design, reliability is even greater than before.
Used for...
Both clean and heavily effected electric guitar
Moderate volume, electric and upright bass
Amplifying classical nylon string guitars
Amplifying steel-string acoustic guitars
Pedal Steel
Tube compliment: 1X Tung-Sol 6SL7, 2X Sovtek 12AX7LPS, Pair Tung-Sol KT66
Front Panel (left to right): 1/4" input, 3-way bright switch, Volume, Treble, Mid Slope, Middle, Bass, Presence, Standby switch, Pilot lamp, Power switch.
Rear Panel (left to right): 2A Slo 20mm fuse, 500mA Slo fuse, Neutrik “Power One” female power socket, 3X "Tip jacks" (for bias measurements), 1/4" 4 Ohm out, 1/4" 8 Ohm out, 1/4" 16 Ohm out.
Dimensions: 11 3/8" Deep x 10 5/8" Tall x 21" Long