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Offered is a beautiful vintage Dynaco ST-35 stereo tube power amplifier featuring the highly desirable 4-way independent output tube bias modification. This upgrade allows each EL84/6BQ5 output tube to be adjusted individually for precise matching, optimum performance, and extended tube life.The ST-35 is widely regarded as one of David Hafler’s finest designs. Its legendary Dynaco Z-565 output transformers are known for exceptional bandwidth, low distortion, and remarkably musical sound. The amplifier is conservatively rated at 17.5 watts per channel (35 watts total) and is famous for sounding much larger than its power rating.Features* Original Dynaco ST-35 stereo tube amplifier
* 4-way independent bias adjustment (one control per output tube)
* Legendary Dynaco Z-565 output transformers
* EL84 / 6BQ5 output stage
* 7247 driver tubes
* Tube rectified power supply using silicon diodes (original ST-35 design)
* Compact chassis with classic Dynaco stylingWhy the 4-Way Bias Upgrade?Unlike the original shared cathode bias arrangement, this modification allows each output tube to be individually adjusted, making it easier to:* Use matched or slightly unmatched output tubes
* Optimize operating current
* Improve tube longevity
* Fine-tune channel balanceCosmetic ConditionPlease examine all photos carefully as they are part of the description. The amplifier presents very well for its age with normal signs of careful vintage use.Included* Dynaco ST-35 amplifier only
* Tubes included as shown in the photosAmplifier will be professionally packed and fully insured for shipment
