Skip to main content

Pioneer SX-636 Receiver

This midrange receiver was one of the last few vintage pieces I've bought in Winnipeg. While by it only put out 25wpc into 8ohm, it was adequate to power my little Bozak MB80. This combination served me well during my transition to the interior BC. 

It was more than adequate for my previous living space and even my current living conditions. Granted the Bozak prefer more power. 

 It was recapped by the previous owner, IIRC all the caps were replaced. That was the extent of the "restoration." It sounded very good for what it was. This Pioneer was on the middle to warm side of things of the sound signature. It was pleasant, wasn't mushy or overly "tubey" sounding but, not as dynamic or transparent as others. 

Middle-ground stuff. Tuner was nice, it was able to grab signal in my condo without an antenna and sounded pretty decent. No qualms about the tuner. Everything worked as it should. Overall, I had zero issues with this unit. However, I was not a huge fan of the speaker binding post at the back. But, having some banana to spade adapters helped. 

Certainly, in my opinion, I prefer the sound signature of the Pioneer SX-636 over the HH Scott 377B, that I picked up (stayed tuned!). This was a very capable unit for either a main or secondary system. I paired it to a TV using an external DAC and turntable. Made listening to music, and watching Netflix a breeze. The added tone controls were nice, especially to bump the bass on the Bozak for movies.

Physically, it was in very good shape, even the vinyl top was in good shape. It is sometimes interesting to see a solid wood case wrapped in vinyl. I know recapping is a controversial issue but, I am the camp of: These units are 40+ years old, for reliability sake. Plus, the increased long term longevity is also nice. While my unit was recapped, it did have some burnt out lamps. I tried to source them locally but, it was not possible. 

Currently, this unit has found a new home in Alberta! 

Some specification from hifiengine.com: 
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: 480 x 147 x 405mm 
Weight: 11.2kg 
Year: 1974

Popular posts from this blog

Yamaha YP-66 Turntable

The rosewood vinyl wrapped twin sibling of the Yamaha YP-221, they are the exactly the same other than the colour of the plinth and instead of silver plastic bits on the YP-221 the YP-66 has black bits. This is your typical belt drive turntable of the mid to late 70s.  It's a 2-speed with automatic return (semi-automatic).  It's a nice entry level turntable with all the decent built quality that you find on majority of the Japanese made tables of that era.  It has a good sized motor and a decent weight.  Yamaha tables are like Sony tables, they always have decent quality components and they always look nice to the eyes.  The slight smoked dustcover and the rosewood plinth makes it quite unique to look at. Sadly, the antiskate weight on our isn't original.  It was missing when we got it.  After a bit of research we found the appropriate weight and found an appropriate weight to retrofit into our table.  We found a nice brass weight to fit with ...

Micro Seiki MR-622 Turntable

This is one of my greatest prize possessions, well for turntables.  The Micro Seiki MR-622 is a fabulous turntable, and definitely has been one of my favourite tables that I had the pleasure of owning. Everything about this turntable screams quality.  Even the 45rpm adapter seemed to be milled aluminum.  It has adjustable feet, a side pocket for accessories , a nice heavy die cast platter and even the top part of the plinth is cast.  All wrapped in a beautiful smoked dustcover and real wood sides. The Micro Seiki MR-622 is a fully manual, 2-speed, direct drive turntable.  This means, it's low maintenance and high reliability as there is less moving parts within the turntable.  It's just a huge motor, speed controls and Micro Seiki MA-202 tone arm, placed in a overly built plinth just like what one would expect from Micro Seiki. The MA-202 tone arm is a S-shaped tone arm with excellent tracking ability.  It has an adjustable counterweight and the...

Sanyo TP-1020 Turntable

That's right, I got myself a Sanyo! It's actually not a bad unit when you start stripping it down. I know, the overall black motif isn't awe-inspiring but, it is quite the performer. It's definitely better built than some other turntable I've come across. The motor, especially, is quite good. So, what can I say about this Sanyo? Well, it's definitely a CEC built table. Apparently, it as a twin called the Grundig PS-1020, tonearm looks different but, probably performs the same. It's your typical Japanese made direct drive turntable, 2-speed, pitch control and automatic return/reject (semi-automatic). It was a quite easy to work, everything was laid out nicely and everything was within reach to get too. Definitely better built than some of the Japanese turntables of the late 70s and into the 80s. I think one of the more common features with the Sanyo is the mirror at the base of the platter. It's an inspection mirror for the needle and I like it! I f...