Description: Modified, upgraded and changed Adcom GFA-2535 Power Amplifier. This amplifier was GFA-2535 before modification, two channels' parts were removed. Triple-Darlington configuration of driver and output stages were changed to double-Darlington ones. It is a dual mono AMP. Below are the lists of modifications and upgraded applied to this amplifier: 1. The unbalanced differential in input stage changed to the balanced one. 2. Removed surge protection circuits, instantaneous distortion alert circuits. 3. The transistors of the VAS replaced with 2sb649A. 4. The drivers replaced with matched MJE15032G/15033G(250v 8A). 5. Input jacks were replaced with brand new ones. 6. The negative feedback resistors changed from 22k to 27k and a capacitor paralleled on them. 7. Sigma Drive was applied. 8. Eight brand new caps were added to the output stage on both channels. 9. Grounding changed. Few scratches on the case as shown in the pictures. Normal 0 7.8 pt 0 2 false false false EN-US ZH-CN X-NONE
Price: 549 USD
Location: Roswell, Georgia
End Time: 2024-12-10T02:45:42.000Z
Shipping Cost: 0 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Number of Channels: 2
Model: GFA-535
Type: Power Amplifier
Modified Item: Yes
Brand: ADCOM
