Pioneer - SG-9 Equalizer

Pioneer SG-9 12-Band Stereo Graphic Equalizer

Excellent vintage Pioneer SG-9 stereo graphic equalizer, in excellent condition and fully operational.

The unit shows only minor signs of use and natural aging consistent with its era. The front panel and controls are in very good condition, maintaining the elegant Pioneer aesthetic from the early 1980s.

The Pioneer SG-9 is a sophisticated 12-band stereo graphic equalizer per channel, designed to allow precise control of the frequency response and to adapt the audio system to the characteristics of the room and the loudspeakers.

This is a model highly regarded by collectors and vintage audio enthusiasts, notable for its excellent build quality, broad frequency response, and classic Pioneer design.

Technical specifications:

Brand: Pioneer
Model: SG-9
Type: Stereo graphic equalizer
Year: circa 1982
Origin: Japan
Number of bands: 12 per channel
Frequencies: 16 Hz, 32 Hz, 64 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, 16 kHz and 32 kHz
Control range: ±10 dB
Frequency response: 5 Hz – 100 kHz (±3 dB)
Signal-to-noise ratio: 92 dB
Total harmonic distortion: 0.006%
Output level: 1 V, maximum 7.5 V
Gain: ±0 dB
Input impedance: 50 kΩ
Output impedance: 600 Ω
Dimensions: 420 × 150 × 355 mm
Weight: approximately 7.1 kg

An excellent opportunity for collectors of vintage Pioneer equipment or to integrate into a high-quality classic Hi-Fi system.

Careful packaging with adequate protection for safe transport