FS: Vintage Pioneer SX-636 Receiver
markmarc
Posts: 2,309
Another receiver from the closet. The exterior facing, wood and casing is minty. The volume knob does have a warped rotation to it. Sadly, the phono section needs some work. The classic Pioneer ballsy sound is there in spades. No distortion with any of the inputs, all lights work. $80, payment via PayPal. Shipping box dimensions and weight: 24x20x10, 30lbs. Shipping from 97123.
Description
The FM tuner employs a low-noise FET and a frequency-linear 3-gang variable capacitor in the front end. The FM IF section features a 5-stage limiter of high-performance IC and phase-linear ceramic filters. And to ensure stability under all operating conditions, the FM MPX circuit is the advanced PLL (Phase-Lock-Loop) type with an IC.
FM results are impressive: 1.9pV (IHF) sensitivity, capture ratio of 1.0dB (IHF), 60dB selectivity (IHF), signal-to-noise ratio of 70dB and wide separation of more than 30dB over the 50 to 10,000Hz range.
Accurate high fidelity reproduction is achieved with a particularly precise phono equalizer in the Pioneer SX-636. It keeps RIAA deviation within +- 0.5dB.
And as for power, the advanced direct-coupled OCL power amplifier provides continuous power output of 25 watts per channel, min RMS
at 8 ohms from 20 Hertz to 20,000 Hertz with no more than 0.5% total harmonic distortion.
This is enough to drive up to two pairs of stereo speaker systems independently or simultaneously with brilliant, high fidelity results.
As a stereo control center the SX-636 is up to the minute - there are two stereo pairs of tape terminals (deck 1 to deck 2 tape duplication is possible), a function switch to handle FM, AM PHONO, MIC and AUX. An FM-linear dial scale with dual meter tuning system, illuminated program indicators, a stereo headphone jack and other conveniences add to the versatility.
The efficient Pioneer SX-636 puts stereo power in its place - with no wasted watts or wasted money for your stereo pleasure.
Specifications
Tuning range: FM, MW
Power output: 25 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 30kHz
Total harmonic distortion: 0.5%
Damping factor: 35
Input sensitivity: 7mV (mic), 2.5mV (MM), 150mV (DIN), 150mV (line)
Signal to noise ratio: 65dB (mic), 70dB (MM), 90dB (line)
Output: 150mV (line), 30mV (DIN)
Speaker load impedance: 4Ω (minimum)
Semiconductors: 1 x FET, 3 x IC, 33 x transistors, 17 x diodes
Dimensions: 19w x 14d x 6h
Weight: 24lbs
Year: 1974
Description
The FM tuner employs a low-noise FET and a frequency-linear 3-gang variable capacitor in the front end. The FM IF section features a 5-stage limiter of high-performance IC and phase-linear ceramic filters. And to ensure stability under all operating conditions, the FM MPX circuit is the advanced PLL (Phase-Lock-Loop) type with an IC.
FM results are impressive: 1.9pV (IHF) sensitivity, capture ratio of 1.0dB (IHF), 60dB selectivity (IHF), signal-to-noise ratio of 70dB and wide separation of more than 30dB over the 50 to 10,000Hz range.
Accurate high fidelity reproduction is achieved with a particularly precise phono equalizer in the Pioneer SX-636. It keeps RIAA deviation within +- 0.5dB.
And as for power, the advanced direct-coupled OCL power amplifier provides continuous power output of 25 watts per channel, min RMS
at 8 ohms from 20 Hertz to 20,000 Hertz with no more than 0.5% total harmonic distortion.
This is enough to drive up to two pairs of stereo speaker systems independently or simultaneously with brilliant, high fidelity results.
As a stereo control center the SX-636 is up to the minute - there are two stereo pairs of tape terminals (deck 1 to deck 2 tape duplication is possible), a function switch to handle FM, AM PHONO, MIC and AUX. An FM-linear dial scale with dual meter tuning system, illuminated program indicators, a stereo headphone jack and other conveniences add to the versatility.
The efficient Pioneer SX-636 puts stereo power in its place - with no wasted watts or wasted money for your stereo pleasure.
Specifications
Tuning range: FM, MW
Power output: 25 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 30kHz
Total harmonic distortion: 0.5%
Damping factor: 35
Input sensitivity: 7mV (mic), 2.5mV (MM), 150mV (DIN), 150mV (line)
Signal to noise ratio: 65dB (mic), 70dB (MM), 90dB (line)
Output: 150mV (line), 30mV (DIN)
Speaker load impedance: 4Ω (minimum)
Semiconductors: 1 x FET, 3 x IC, 33 x transistors, 17 x diodes
Dimensions: 19w x 14d x 6h
Weight: 24lbs
Year: 1974
Review Site_ (((AudioPursuit)))
Founder/Publisher Affordable$$Audio 2006-13.
Former Staff Member TONEAudio
2 Ch. System
Amplifiers: Parasound Halo P6 pre, Vista Audio i34, Peachtree amp500, Adcom GFP-565 GFA-535ii, 545ii, 555ii
Digital: SimAudio HAD230 DAC, iMac 20in/Amarra,
Speakers: Paradigm Performa F75, Magnepan .7, Totem Model 1's, ACI Emerald XL, Celestion Si Stands. Totem Dreamcatcher sub
Analog: Technics SL-J2 w/Pickering 3000D, SimAudio LP5.3 phono pre
Cable/Wires: Cardas, AudioArt, Shunyata Venom 3
Founder/Publisher Affordable$$Audio 2006-13.
Former Staff Member TONEAudio
2 Ch. System
Amplifiers: Parasound Halo P6 pre, Vista Audio i34, Peachtree amp500, Adcom GFP-565 GFA-535ii, 545ii, 555ii
Digital: SimAudio HAD230 DAC, iMac 20in/Amarra,
Speakers: Paradigm Performa F75, Magnepan .7, Totem Model 1's, ACI Emerald XL, Celestion Si Stands. Totem Dreamcatcher sub
Analog: Technics SL-J2 w/Pickering 3000D, SimAudio LP5.3 phono pre
Cable/Wires: Cardas, AudioArt, Shunyata Venom 3
Comments
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That's a real beauty.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
I think that series of blackout-dial Pioneers was that company's aesthetic pinnacle (FWIW). Nice vintage piece; GLWTS (as they say).
