Jump to content

*Edit: Sansui SR-2050C TT/MCS Tuner & Integrated Amp. (N Florida)


billybob

Recommended Posts

From Audio Asylum:

 

MCS Integrated Amp surprise!

A friend of mine just gave me his MCS integrated amp to fix. (it doesn't play) Well, the fix took a few minutes, as both output fuses were blown. They are internal and mounted on the main motherboard.

The surprises came with looking this thing over internally. Chassis and cover are heavy gauge steel, and the cooling slots on the cover have window screen on the inside to prevent kids dropping coins in there. A large and well shielded power transformer, 10,000 uF, 50 V caps, a large square rectifier module rather than discrete diodes, star grounding, a good sized heat sink, 3 pin regulator for the low voltage sections. An even bigger surprise was finding that all the wire wrap terminations were factory soldered!

Output devices were STK flat packs.

Metal front panel and the knobs are heavy machined aluminum with a plastic insert for the knurled shafts. (I did have to re-glue an insert to the shell of a knob) Along the top of the front panel was a long narrow window with LEDs for input indication and two horizontal LED power output indicators.

No power rating, and a caution on the back to use only 8 ohm speakers, but the two outputs are in parallel. The name plate said 120W consumption, so I figure maybe 35-40 W/ch. I did not make a measurement. Output fuses are 4 amp which is 64 watts into 4 ohms.

Anyway, I hooked it to my system, and played it for an hour or so to see if the fuses would hold (they did). My second surprise was the sound. Very nice sound with my Advents. Bass was deep and tight and I'd have to say, pretty close to my NADs and my modded Onkyo integrated. Mids and highs were smooth, clear and clean. No edginess, and a fair amount of sparkle. Fine, low level detail was well rendered. Not quite as good as the Onkyo A-8190 which has a passive line stage, but close to the NAD C350.

Altogether, a much better than expected amp. Being an MCS, you could probably pick up one of these for cheap. Model number was 683-3850. Also, it's a fairly early one as the power cord and convenience outlets are not polarized, and the extra rear input says AUX instead of CD. It does have a phono section, which I didn't try. I'll report back on that!
Link to comment
Share on other sites

Continued:

RE: MCS Phono Follow Up

More surprises. It has an excellent phono section! At least with the nice MCS Direct Drive TT some one gave me recently. It has an AT71 cartridge in it, and the MCS amp seemed to like that.

This would be a very good amp for a vinyl lover's bedroom system or the like. Very quiet, and very smooth and clean sounding.

I also surprised myself a bit when I compared the phono to CD. For convenience, I hooked in the Sony CDR-W1 I have (a CD recorder) and the phono kicked its butt, but good. Had all the sonic character that vinyl lovers attribute to CD. I next tried my Rotel RCD-971 - much better! The phono was still a little nicer in the highs and not as bright. Cutting back the treble control 1-2 clicks made them equal. On my Onkyo A-8190, the MCS TT and the RCD-971 sound very close. If you were going to use this amp with a CD player, you'll want one that's warmer and more "vinyl-like". I'd also think using short, low capacitance interconnects for CD would help with some players (like this Sony), although the Rotel is unaffected.

Lots of fun on a cold, gray, dismal day here in northern Ohio.

Jerry
 
Full thread:
 

 

Link to comment
Share on other sites

  • 4 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...