Mission 700S

I just picked up a pair of Mission 700S, the first speakers I bought when I started my journey down the audiophile path. These speakers will probably need to be re foamed, re capped and re finished as there are some water stains on the real walnut veneer.

These speakers were well regarded in the early 80's as an budget audiophile speaker. There is a 8" woofer over top of a Vifa TD 19 tweeter and ported at the bottom. The covers are permanently attached.

Realistic System Seven

I finally put together the stereo that I always wanted as a kid a Realistic System Seven.

The Realistic STA-7 was designed to work with the Minimus 7 speakers. A nice sleek unit rated at 10 watts per channel.

I picked up this unit and had to replace the dial bulbs and the stereo bulb. I also found the screw speaker terminals to be a pain so I installed proper banana plug terminals. The pots all needed a cleaning to get the scratch out of the controls.

I changed out the Minimus 7 speakers from a 2nd order crossover on the tweeter and the natural roll off of the woofer to a 1st order on both drivers. I like the sound of the Minimus 7's this way.

Click here for the Realistic catalog from 1980 go to page 18.

More Mini Speakers : Minimus 7's

I keep stumbling across mini speakers with a pair of version 1 of  this famous little Radio Shack speaker, the one made in Japan with the metal baffle plate on the tweeter. By most accounts these are the best of the models.

They are pretty simple little speakers with a 2nd order crossover for the tweeter of which I replaced the 4.7uf cap with a film cap.

The woofer rolls off with no crossover, which most people think in the Achilles heel of this speaker. There is plenty of information on the net in regards to rebuilding the crossover of which I might try.

They are much brighter than the Transonic mini's that I featured earlier and side by side I tend to listen to the Transonics more than the Minimus 7's. Stack the two sound pretty good together.

I also have a pair of Koss Dyna-mite 65's that are waiting a re foam and will be featured then. All this will eventually lead to a mini speaker challenge.

Transonic Mini Speakers

This Transonic speaker was an OE brand of speakers for a department store in British Columbia called Woodwards. Back in the day Sears had their OE line of stereos and so did the Bay, theirs went by the name BayCrest.

These little guys are a direct knock off of the Minimus 7 speaker by Realistic. With woofers and tweeters from Art Audio in Japan. The woofer is a 1st order cross and the tweeter is a 2nd order crossed at 3000hz.

I recapped the crossover with a polypropylene cap of the same value.These are doing duty in my office and are hooked to a Yamaha receiver. These speakers need a small room and a little bass boost. The bass is limited but the mids are great and the tweeter is nice and airy.

Sony SS-E70 complete

The Sony SS-E70 are complete. The crossover have been recapped and the speaker wire has been upgraded. The veneer on the cabinets have been fixed and extra sound dampening has been stuffed into the box. The terminals on the back have been swapped to accept banana plugs.

From what I have found on the internet is these speakers are a step down from Sony's SS-G1 using the same drivers but a different cabinet.

According to the Vintageknob The SS-G1 was given a "Best Buy" rating in the UK in 1980.

 

The SS series speakers were tuned to the European market and tastes and it really shows. Bass is full and tight while the midrange is smooth and revealing and the tweeter is just right.

These speakers are really easy to listen to and never fatiguing, in fact they sound surprising close to the Dual  CL390 that I own which are basically Braun L830's, one of the best vintage bookshelf speakers ever made.

A 1980 Sony catalogue can be found here.

These are truly a wonderful pair of speakers and they will be sticking around for a little while.

EPI 70C

Last update on these little gems, the woofers have been replaced with Dayton Classic 6.5" drivers. The capacitor was switched out with a Solen 10uf polypropylene cap. Previous upgrades include 14 gauge speaker wire and banana plug binding posts.

And of course the original EPI tweeter were swapped out with a much more aesthetically pleasing Epicure tweeter. 

These are a great little speaker that throws out an amazing sound stage.

Sony SS-E70 Speakers

I stumbled upon this intriguing pair of Sony speakers and what caught my eye was that they were made in Germany.

There is not a lot of information on these speakers but from the sources I found the SS-E70 are from Sony's mid HIFI line from the late 70's to early 80's. The Sony "E" Series was a step down from their King of the Line up SS-G Series. This series was super seeded by the APM Series.

These speakers were designed and produces in Sony's WEGA Division in Germany.

WEGA, pronounced "Vega", was founded as Wuerttembergische Radio-Gesellschaft mbh in Stuttgart, Germany in the year 1923. In 1975, it was acquired by Sony Corporation. At this point, they were known throughout Europe for stylish and high-quality stereo equipment, designed by Hartmut Esslinger amongst others.

What attracted me was the use of high quality SEAS drivers in these speakers.The 10 inch bass has a cast aluminum basket. Another cool thing about this pair is the serial number, 11 and 12.

When I picked up these speakers they were pretty dirty but all the cabinet corners are square. The vinyl veneer on one speaker is peeling away but is an easy fix. The tweeter dome was pushed in and a vacuum cleaner quickly popped it back out. The crappy spring clips are going to be replaced with 5 way binding posts and the mid range caps will be replaced with Solen electrolytic caps and the tweeters will be done with polypropylene caps. Also the speaker wire will be upgraded to 14 gauge to the woofers.