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PIONEER SG-9800

The Pioneer SG-9800 is a stereo graphic equalizer that was first introduced in 1979. It was part of Pioneer's top-of-the-line "G" series of audio equipment and was designed for use in high-end home audio systems.

The SG-9800 offered a range of advanced features that helped to set it apart from other graphic equalizers of its time. It included ten different graphic bands, with seven bands of adjustments for each channel and a variable Q factor control. This allowed users to fine-tune the equalization to achieve the desired sound for their audio system.

The SG-9800 also featured Pioneer's patented "Non-Switching Amplifier" technology, which helped to maintain dynamic range and preserve the quality of the audio signal. The system also included a spectrum analyzer with an LED display that helped to visualize changes in the audio signal in real-time.

In terms of build quality, the SG-9800 was a robust and reliable unit, with a solid construction and high-quality components. Its elegant design and easy-to-use interface made it a popular choice among audiophiles and music enthusiasts.

Overall, the Pioneer SG-9800 was an advanced and high-quality graphic equalizer that offered exceptional sound quality and versatility, making it a highly sought-after unit among vintage audio enthusiasts to this day.

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Technic details

Specifications

Type:
Twelve Band Stereo Graphic Equaliser
Output Level:
1V (7.5V max)
Gain:
±0dB
Frequency response:
5Hz to 100kHz, +0 -3dB
Signal to Noise Ratio:
92dB (IHF, A Network, short circuited, 2V output)

Total harmonic distortion:
0.006% (20Hz to 20kHz, all control flat, output 1V)
0.02% (10Hz to 30kHz, all control flat, output 1V)
0.01% (1kHz, all control max., output 3V)
0.005% (1kHz, all control flat, output 2V)
0.02% (1kHz, all control min. output 1V)
Control Range:
±10dB
Frequency Bands:
16Hz / 32Hz / 64Hz / 125Hz / 250Hz / 500Hz / 1kHz / 2kHz / 4kHz / 8kHz / 16kHz / 32kHz
Insertion Loss:
0dB (Control Flat)
Max. Output Voltage:
7.5V (1kHz, THD 0.02%, R 47kΩ)
Input Impedance:
50kΩ
Output Impedance:
No more than 600Ω
Semiconductors:
27 x IC’s
2 x FET’s
14 x Transistors
19 x Diodes
Power requirements:
AC 120V / 60Hz only (U.S.A and Canadian model)
AC 110 - 120V / 220 -240V, 50 / 60Hz Switchable (General export and U.S. Military model)
AC 220 and 240V, 50 / 60Hz (Europe and U.K. model)
Power consumption:
30W (U.S.A and Canadian model)
25W (General export and U.S. Military model)
Furnished Parts:
Connection cord with pin plugs x 2
Operating instruction

Dimensions (W x H x D):
420 x 150 x 355mm
Weight:
7.1kg
Year:
1979

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