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question about old amp

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o0akoni0o

[H]ard|Gawd
Joined
Aug 31, 2004
Messages
1,301
well my parents upgraded to a new sound system and they have an older sansui system thats asking to be parted. i think its a late 70s early 80s model. basically i'm wondering if the amp used for it can power my athena sb1s and dayton 10" sub? also the system has a pair of 3 way speakers with it and i was wondering if i could find any use for this?
 
The simpel response is most probubly.

The not so simple response
Probubly assuming the Athena SB1s are of an OHM rating that the sansui can handle, most speakers are 8 OHM which every amp can handle. Also is it a amp or a intergrated amp (amp and pre amp in one unit) I'll assume its a intergrated if not you will need a pre amp.
 
i'm its integrated. the only components of the system are the amp, a cassette deck, a tuner, and a turntable.
 
o0akoni0o said:
i sure will. oh are there any other methods of connecting the amp into my computer other than using an rca converter and plugging it into the headphone jack? heres a link to my mobo since i'm still using onboard audio. http://www.newegg.com/Product/Product.asp?Item=N82E16813130470 at most i'll prolly buy a chaintech, but yea what are my other options?
Click to expand...

See if you can find a Onkyo SE-U55 wavio soundcard I used to have one and it was external. you could run 2 RCA's out the back and into the AUX inputs behind the amp. better than using an rca "converter".
 
if i got something like a chaintech or maybe even an audigy, what kind of hookup options would i have? oh and what are the disadvantages to using an rca to headphone input hookup, if any?
 
o0akoni0o said:
if i got something like a chaintech or maybe even an audigy, what kind of hookup options would i have? oh and what are the disadvantages to using an rca to headphone input hookup, if any?
Click to expand...

Hookup options are mostly the same. Most every soundcard has (several) 3.5mm stereo outputs, it's a common standard and you can fit enough of them onto the back to get all your in/outs. The output is normally at "line-level" standard, which is around a maximum of 2 volts, the same as every piece of stereo gear, so inputs and outputs are compatible. You should be able to hook up directly from the headphone out to the reciever with no problem. You'll be limited to stereo though due to the old Sansui only being stereo. The amp is probably pretty good though, but it might benefit from replacing a few old capaciors.

Your SB1s might be better or worse than the 3 ways. It depends alot on the design/quality of the 3 ways and what condition they're in. My first "computer speakers" 10 years ago were a Pioneer amp and set of 3 ways. Still better than most modern computer speakers.

The Dayton sub should have a speaker level pass through to use with stereo speakers. If you want to run just stereo or 2.1, this amp and the Athenas and the sub would be a great combo. If you run surround, it might be difficult to integrate into that setup. Either way, it can be fun to experiment and hear the differences between them.

For adaptors, this is kind of normal:
http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=090-294
but I don't like it because it clutters up the back of your soundcard and you still need RCAs.

You could go as simple as this:
http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=240-135

or as fancy as this:
http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=181-854

Personally I like something in between. I like 6 foot long cables so that there's plenty of length to route them. I try to find fairly thick ones so that they don't get broken as easily. And gold connectors help prevent corrosion. Of course I use a separate 5 channel power amp, so my setup is a little unique.
 
some of those old sansui speakers were very nice sounding.

I still remember my second pair of speakers I had as a kid, sansui SP-2500s My god those things were smooth, and deep...my only gripe was the treble, and I had that fixed by redoing hte corssover and adding orca silk dome tweeters in place of the paper cone ones...then when I was moving they got stolen :*(
 
Fenris_Ulf said:
The Dayton sub should have a speaker level pass through to use with stereo speakers. If you want to run just stereo or 2.1, this amp and the Athenas and the sub would be a great combo. If you run surround, it might be difficult to integrate into that setup. Either way, it can be fun to experiment and hear the differences between them.
Click to expand...
well this setup was gonna be a 2.1 setup from the beginning since i don't have the funds or the space for a surround setup. so i guess once finals are over, i'm gonna give this stereo equipment a shot.
 
well i hooked up my laptop to the stereo and gave it a shot. first there was some slight distortion in both speakers, then one of the speakers sounded lower than the other. and suddenly the sound levels were equal once again. my question is, what are the possible problems here and is there anything relatively simple i can do to fix it?
 
listen up close to each driver in the speakers, and see if you can pick up a particular distortion from them. Then put a known good speaker set on to verify what you heard.


by the way, what sansui reciever is this? a model number will help in searching about it. Sansui receivers aren't bad, but they were very vulnerable to amp circuits blowing out when driving lower than the reccomended impedance range.
 
Also, electrolytic capacitors are really only rated for about 10 years lifespan. That amp is over 20 years old, so there may be some issues with the capacitors.
 
You could take it to a local repair shop and get an estimate on a refurb job. They may want to clean the contacts, check the caps and sacrifice a chicken. If they want to charge you more than like $50, then I'd just get a new(er) stereo reciever.

You want to use a minijack-RCA adaptor cable. The setup could (should?) be laid out something like this.

Soundcard minijack output -> minijack-RCA cable -> Receiver/amplifier RCA input -> Speaker outputs -> speaker wire (16 guage "lamp cord" is often good enough) -> Dayton subwoofer - speaker level inputs -> speaker wire -> Athena speakers

Positioning and calibrating the subwoofer for good, smooth integration with the sats is important.

You can read the manual for the subwoofer.

http://www.partsexpress.com/pdf/300-632.pdf

I also like this subwoofer setup guide.

http://forum.av123.com/showthread.php?s=&threadid=3418
 
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