AM/FM Stereo Receiver (1978-80)
The Pioneer SX-980 is an AM/FM stereo receiver with constant current loaded 2-stage differential amplifier, and direct coupled 2-stage Darlington single push-pull DC configuration power amplifier.
Features include Pioneer turnover tone controls, 6dB-octave high and low filters and outputs for 2 pairs of speakers.
Tuning range: FM, MW
Power output: 80 watts per channel into 8Ω (stereo)
Frequency response: 5Hz to 100kHz
Total harmonic distortion: 0.05%
Damping factor: 30
Input sensitivity: 7.5mV (mic), 2.5mV (MM), 150mV (DIN), 150mV (line)
Signal to noise ratio: 76dB (MM), 90dB (line)
Output: 150mV (line), 30mV (DIN), 1V (Pre out)
Speaker load impedance: 4Ω (minimum)
Semiconductors: 3 x FET, 8 x IC, 35 x transistors, 45 x diodes
Dimensions: 526 x 176 x 440mm
Accessories: FM T-type antenna
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Reviewed Dec 16th, 2015 by suitekids
I picked one up a few weeks ago, unaltered and in as new condition, not a scratch or ding in the wood. Tuner section is awesome, and everything works perfectly.. They really don't make electronics like these anymore, the last of an era for that warm sound unless you have lots of money. These have big transformers and main caps, and are definitely worth the money they are fetching now if you find a nice one that isn't all butchered up. 80 wpc with a good set of speakers, can rock the house with loads of real headroom. The silver era will be missed
Reviewed Apr 04th, 2013 by oldestpunkinargentina
The 90s were dawning and I decided it was time to move one from low-power amps to something with a healthy dosage of watts. New stuff ? Budget receivers had hideous sound featuring cheap ICs on their power stages and good quality was as affordable as a trip to the moon. I decided to go vintage for the sake of my economy but got hooked on it for life.
U$ 250 dollars lighter and a couple of incipient hernias from moving around the 19 kgs this beast weighs I was blasting the sweetest sound I had ever heard. Elna capacitors, Nec transistors, state-of-the-art circuit boards, it had it all.
Granted, it did broke down on me a couple of times, but nothing that couldn't be repaired with original components within my budget. I never needed to recap it because it was not necessary and I don't believe in altering the original sound.
I really expect to enjoy this unit for another 20 years because if I have to buy a current receiver this good-sounding(been tempted by the Denon DRA-397), it will not only set me back a couple of grand but I know the POS will die on me within 5 years like everything engineered with planned obsolescence these days.
Only drawback I can point out is this is not a high-current amp. The damping factor is as skimp as 30 and it only pumps 15 watts more in 4 ohms than it does in 8. But paired to my Klipsch F2s and JBL 12 SUB you can rarely realize this fact.
If you ever come across a mint unit, buy it without hesitation, it's totally worth you while 8a lifetime in my case, I hope).