SANSUI SAX-800

Commentary

This medium-sized FM/AM stereo receiver was released as a home tuner amplifier for the era of FM broadcasting.

A 3-row varicon is used for the FM front end and an FET is used for the RF stage to improve the interference rejection capability.
The AGC circuit also improves the selectivity in a strong electric field.

The 4-stage IF amplifier and 3-stage limiter circuit provide sufficient limiter characteristics.

The noise canceler eliminates the noise from stereo reception without cutting the high-frequency audible range.

The intermediate amplifier section uses CR-type tone control with low-noise silicon transistors.

A muting switch is installed to eliminate inter-station noise during FM reception.

The FM multi-circuit employs a switching system with high stability and reliability.

It is equipped with a pure electronic FM stereo / mono switching function. In FM-AUTO, the electronic switch automatically operates when the FM broadcast changes from mono to stereo, and in a weak electric field, it automatically becomes mono and does not receive noisy stereo reception.
You can check the stereo broadcast transmission with the stereo indicator.

It is equipped with an FM antenna input change-over switch, enabling local disturbance switching, enabling distortion-free reception even in strong electric field areas.

By using a ceramic filter in the AM receiver, the selectivity is improved and the beat interference rejection capability is excellent. By using a new AGC system, a stable reception condition can be obtained from Oire power to large input.

Equipped with two circuit FM antenna input terminals of 300 Ω and 75 Ω.

Silicon transistors are used in everything from the audio circuit to the tuner section to improve SN.

SEPP-OTL system of complimentary service Darlington circuit using mesa silicon transistor for power transistor is adopted.
In addition, a short-cut fuse is used to protect the power transistor.

It is equipped with functions such as a high filter, loudness control, DIN connector, tape monitor circuit, headphone jack, ground terminal and multiplex separation adjuster.

Model Rating

Type	Solid-state tuner amplifier
Amplifier Unit
Effective power	Music Power (IHF) : 70W ± 1 db (4 Ω) 58W ± 1 db (8 Ω) Effective power : 28W/28W ± 1 db (4 Ω) 22W/22W ± 1 db (8 Ω)
Total harmonic distortion factor	1.0% or Less (Rated Output)
Intermodulation distortion factor (60 hz : 7 khz = 4 : 1)	Not more than 1.0%
Power Band With (IHF)	20 Hz ~ 35 kHz (8 Ω)
Frequency characteristic	Power Amplifier Part : 15 Hz ~ 50 kHz ± 1 dB AUX : 20 Hz ~ 30 kHz ± 1.5 dB
Channel separation	Phono, AUX : 50 dB or more (rated output, 1 kHz)
Hum and Noise (IHF)	Phono, AUX : 70 dB or more
Input Sensitivity (Rated Output, 1 kHz)	Phono : 2.2 mV ± 3 dB AUX, Tape Mon (PIN), Tape Recorder (DIN) : 150 mv ± 3 db
Recorded output	Tape Rec (PIN) : 150 mv ± 3 db Tape Recorder (DIN) : 25 mV ± 3 dB
Output impedance	4 Ω ~ 16 Ω
Damping factor	60 (8 Ω)
Equalizer	Phono : RIAA NF Type
Tone control	Bass : ± 10 dB (50 Hz) Treble : ± 10 dB (10 kHz)
Loudness control	50 Hz : + 8 dB, 10 kHz : + 5 dB (Volume-30dB)
High filter	10 kHz, -10dB
FM Tuner Section
Receiving frequency	76 MHz to 90 MHz
Sensitivity	2 μ V ± 3 dB (20 dB quieting) 2.8 μ V ± 3 dB (IHF)
Total harmonic distortion factor	Less than 1% (60 dB input, 100% mod)
Signal-to-noise ratio	50 dB or More (60 dB input)
Selectivity	45 dB or more
Image フレクェンシー rejection	45 dB or more
IF Rejection	55 dB or more
Channel separation	35 dB or more
Spurious response	50 dB or more
Unwanted broadening	34 dB or more
<AM Tuner Section>
Receiving frequency	535 to 1,605 kHz
Sensitivity	22 μ V ± 3 dB (1 MHz)
Image ratio	40 dB or More (1 MHz)
IF Rejection	45 dB or more
Selectivity	20 dB or more
<General>
Power supply voltage	100 VAC, 50Hz/60Hz
Power consumption	110 VA (max)
External dimensions	Width 402x Height 116x Depth 333 mm
Weight	10.5kg