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Technics SA-DA8

AV Control Stereo Receiver (2000-02)

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Technics SA-DA8


Tuning range: FM, MW

Power output: 100 watts per channel into 6Ω (stereo)

Surround output: 100W (front), 100W (center), 100W (rear)

Frequency response: 10Hz to 70kHz

Total harmonic distortion: 1%

Input sensitivity: 3mV (MM), 200mV (line)

Signal to noise ratio: 80dB (MM), 100dB (line)

Channel separation: 55dB (line)

Output: 200mV (line)

Speaker load impedance: 4Ω to 16Ω

Digital inputs: coaxial, optical

Video Connections: composite, SVHS

Dimensions: 430 x 180 x 370mm

Weight: 11.7kg

Accessories: remote control


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Reviewed Nov 25th, 2017 by ednomarsa

This receiver like many Technics components is underrated for some people, but this thing with 100 watt per channel in 6 ohms and 0,09 thd, can compare and beat receivers and amplifiers of others companies and Technics, in the same segment. Mine is use for listening music and when I push this beast with 4 speakers in dvd 6 ch mode and vgca on, easily drain more of 6 amp of the electric network. I doubt that this ting only consumes 310 watt with his big power transformer like says in rear plate and his output of 100 watt per channel sound like in 8 ohms not in 6 ohms. When I compare my SA-DA8 with my Technics SU-G50 and my SA-GX490 or the SA-EX600 of my friend, the SA-DA8 can beat two of the others three together.



re: SA-DA8

I'm getting an "F70" error message soon after switching on the receiver. The only way to reset it is cycling power, but the message keeps appearing.
The user manual is vague in this regard. It only says:

“F70” appears on the display: Turn off the unit and then turn it on again, or disconnect the AC mains lead and then connect it to your household mains socket
(If “F70” remains on the display, consult an authorized service center or your dealer.)

Do anybody know what the reason for this message may be? it doesn't seem to mean "overload". There is a separate message for this. I suspect that it's related to some malfunction in one of the several microcontrollers inside, but I'm clueless on which one may be affected.

re: SA-DA8

Something has caused the internal control bus to malfunction!

It could be a blown fuse and thus a lack of power to one section but it is more likely to be a large number of cold solder joints on the main board. Be certain to check solder joints in the fan control circuit, board to board interface plugs (on both sides, main board and daughter cards!) and everything mounted to the central heatsink. Bad solder joints are very common at the hybrid ICs and voltage regulators.

If the solder is good and you blow one of the 8A fuses, you've got a bad output module or a power supply failure. Bad output modules are fairly uncommon as they're MOS devices and not subject to secondary breakdown. Solder joints on these units are terrible however, as they are on most Technics receivers made from the mid 1990s to 2000s.

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