Technics SA-300

Jan 27th, 2016 Posted in SA-300, Technics | No Comments »

Technics SA-300 Faceplate

 

Well, we can't all be monsters right? The Technics SA-300 is no monster, but it does fulfill its purpose. This little guy produces 35 watts per channel with no more than 0.04% total harmonic distortion. So, with some fairly efficient speakers it can produce some nice clean sound for moderately sized room. Plus, it looks nice too! The brushed aluminum face plate and black inset knobs give it a high end, sophisticated appearance.

 

Technics SA-300 Left

 

Offered from 1978 until around 1980, the Technics SA-300 retailed for about $300. It features a 41 click step volume control, low distortion bass and treble controls, high filter switch, loudness compensation switch, and dual function tuning meter.

 

Technics SA-300 Right

 

The SA-300 really does look nice when lit up. The amber back lighting of the tuning dial is both clean and elegant.

 

Technics SA-300 Dial Lamps

 

The output stage on the SA-300 is direct coupled which means it uses no capacitors. This results in a nice, tight, solid bass response right down into the lower frequencies. And, believe it or not, the SA-300's FM front end utilizes a dual gate MOS FET design and a 3 gang linearly variable tuning capacitor. This gives it excellent sensitivity and interference rejection.

 

Technics SA-300 Inside

 

It weighs just over 15 pounds and measures roughly 16 x 6 x 12. The cabinet has a walnut grain vinyl over pressed wood. The SA-300 is a pretty good little receiver. No, it's not going to blow the doors off of any room but it will make a good garage or studio unit. Some people feel the sound is nice and clean while others have called it two dimensional.

 

Technics SA-300 Back

 

The Technics SA-300 is a decent receiver but it's not in high demand. It has its place in the vintage audio world as an entry level receiver or everyday workhorse in the garage. It doesn't handle low ohms well and requires pretty efficient speakers. If you find one at a good price though, it can still be a desirable piece of equipment. A fully serviced unit in really nice condition should run about $100. A decent working unit will cost $50 to $75.

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Sansui G-4700

Jan 19th, 2016 Posted in G-4700, Sansui | No Comments »

Sansui G-4700

 

This Sansui G-4700 is from their line of Pure Power DC receivers from the late 1970's. It was at the bottom of their G-X700 line but still produced a respectable 50 watts per channel. Sansui had other budget oriented receivers at the time such as the G-301 and G-401 so the G-4700 was really in the middle of their performance lineup. It retailed for about $430.

 

Sansui G-4700 Left

 

The G-X700 line all featured a symmetrical layout with two big knobs a the center bottom of the face plate that control volume and tuning. It also has push buttons for FM Mode, Subsonic Filter, Loudness and Tape Monitor

 

Sansui G-4700 Right

 

The Sansui G-4700 looks alright when it's powered off but hit the power switch and dim the lights and you're in for a treat. It is one of the better looking receivers from the late 1970's when lit up. Interestingly it has both digital and analog tuning displays. FM tuning is digitally quartz locked to prevent drift. The left and right peak power meters are also digital.

 

Sansui G-4700 Lamps

 

Inside, the G-4700 is laid out well. The design features Sansui's exclusive DC technology in the power amplifier section. Phase distortion and other related amp problems are eliminated due to the fact that Sansui uses no capacitors in the amplifier circuit. The sound that goes into the amp circuit comes back out nice and clean and distortion free.

 

Sansui G-4700 Inside

 

If you're thinking of buying a G-4700 there are a couple things you should keep in mind. First, they don't particularly like to power speakers at less than 8 ohms or even two pair of 8 ohm speakers for that matter. There is a particular transistor that tends to heat rapidly when the receiver is under too heavy a load. Of course, many receivers will overheat if worked too hard so it's not just a Sansui problem. Second, the digital display can fail. It is controlled with either one or two IC chips and they aren't really replaceable without a donor parts unit. So, if the digital display is dead on the unit you're considering you may want to pass.

 

Sansui G-4700 Ad

 

Overall, the Sansui G-4700 is a great sounding receiver with it's tuning section being its strongest feature. Many G-4700 owners rave about the clean pure sound of this receiver. At 55 WPC it produces plenty of power for a moderately sized room and it has all the features you'll most likely need.

 

Sansui G-4700 Back

 

Vintage Sansui receivers are highly sought after but fortunately quite a few were manufactured as well so most aren't considered rare. A really nice G-4700 can be purchased for around $200 with average condition units costing half that. If you're looking for a mid range receiver with higher end performance then the G-4700 is certainly worth considering.

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