Gradiente A-1 Direct Coupled Reference Power Amplifier
Want a power amplifier that looks as serious as it sounds? The Gradiente Model A1 is a direct-coupled reference stereo power amplifier featuring dual-level controls and a large central power meter display. Built for pairing with a dedicated preamp, it delivers strong, controlled output with classic late-70s/early-80s styling. Fully tested and operating properly, this unit makes a striking addition to any vintage rack system—a rare Brazilian-built powerhouse—SpenCertified and ready to perform.
CONDITION
SPENCERTIFIED- Fully certified by Spencer
Refurbished and SPENCERTIFIED
100% tested and functional. Cleaned inside and out; worn parts replaced as needed. Controls, switches, and boards cleaned with WD-40 Specialist Electrical Contact Cleaner (safe for electronics). Level attenuators serviced. Internal boards inspected, bias and DC offset checked and verified within proper range. Speaker selector switches cleaned and tested. Overload indicator verified operational.
Cosmetic Condition: 7/10
Functional Condition: 10/10
WHAT'S IN THE BOX?
- Gradiente A-1 Direct Coupled Reference Power Amplifier
- Speaker Wire
Other information about the Gradiente A-1
- Power output: 200 watts per channel into 8Ω (stereo)
- Frequency response: 1Hz to 80kHz
- Total harmonic distortion: 0.03%
- Damping factor: 200
- Input sensitivity: 1.5V
- Signal to noise ratio: 100dB
- Semiconductors: 41 x transistors, 11 x IC, 76 x diodes, 27 x LED
- Large dual-channel power output meter display
- Independent left and right level controls
- Meter range selector
- Overload protection indicator
- Lo-Cut filter switch
- Heavy-duty internal power supply
- Designed for use with an external preamplifier
- Solid-state analog design
DIMENSIONS
- Size: 19" x 15" x 7" (W x D x H)
- Weight: 35 lbs
INPUTS
- RCA Line In x2 L/R (back)
OUTPUTS
- Speakers x2 L/R (back)
- AC x1 (back)
MANUFACTURE DATE and PLACE
- Made in Brazil
