[ardgedee]

The plastic jewels for the status lamps on the Fisher amp are 5mm wide. The lamp housing (which looks to be a tube of stiff canvas - I hope it's organic and not asbestos) is quite a bit larger but the inner diameter of it appears to be only a couple mm wider than the jewel. So Sansui could've made their lamp smaller if they wanted to; whether they chose otherwise out of economy, design or marketing strategy is probably lost to history.
 
(Why yes, I always keep a caliper on my desk.)
 
Of course all that's really important is whether small lamps improve the sound quality more than large lamps. More listening time is called for. Much more...

 

[wualta]

My guess is that it's asbestos. Don't poke it up your nose and you'll be fine. As for the effect of lamp size on sound quality, you could always indulge in some lamp-rolling...

 

[RexAeterna]

i don't know if this right place to say anything but i put my near mint and well taken care of silver faced Sansui AU-D7 amp for trade on CL. not gonna post it since be considered advertisment. only in south jersey tho so if anyones interested. i barely use it and for some reason i'm interested into hearing some yamaha gear.

 

[ardgedee]

Quote:

My guess is that it's asbestos. Don't poke it up your nose...

There goes that idea. Oh well.
 
A little more seriously, a couple of the bulbs are out, so I'm eventually going to have to get behind the front panel to replace things. Maybe with white LEDs so I (or the next owner) won't have to worry about it for a few years.

 

[RexAeterna]

well i got a trade offer already for my sansui au-d7. guy wants to trade me a 1980's yamaha R-9 Class A receiver for it. it's 125wpc@8ohms so it provides more power than my sansui at 80wpc@8ohm and my sansui is considered class A/B. he told me he had no issues driving 4ohm Mirage 290 bookshelf speakers since he had it so i might take up his offer and give it a try. thing about Class A amps is they run hot since class A amps are ineffcient and always have all transistors active. cool thing is it has a button to turn off the Class A mode and go to class A/B mode for cooler runs and for more power needed. i read it only stays in class A up to 35w or so but that's plenty of power for my pioneer floor speakers with 3 6ohm peerless mid-woofers since it only takes 1w@1m to reach 87db.

 

[Canuck57]

 
Quote:

well i got a trade offer already for my sansui au-d7. guy wants to trade me a 1980's yamaha R-9 Class A receiver for it. it's 125wpc@8ohms so it provides more power than my sansui at 80wpc@8ohm and my sansui is considered class A/B. he told me he had no issues driving 4ohm Mirage 290 bookshelf speakers since he had it so i might take up his offer and give it a try. thing about Class A amps is they run hot since class A amps are ineffcient and always have all transistors active. cool thing is it has a button to turn off the Class A mode and go to class A/B mode for cooler runs and for more power needed. i read it only stays in class A up to 35w or so but that's plenty of power for my pioneer floor speakers with 3 6ohm peerless mid-woofers since it only takes 1w@1m to reach 87db.

 
87db speakers are not very efficient, they require more amplifier wattage than you might think,,,,
 
http://www.axiomaudio.com/power.html
 
 
 

 

[ardgedee]

It depends on speaker placement and the size of the room. My bookshelf speakers are not particularly efficient (88 dB), but they get plenty of headroom on little power because they're mounted on my desk less than a meter from my ears and a couple cm away from the wall. If they were a conventional 2-3 meters away from me, I don't think I'd be as happy with the setup.

 

[RexAeterna]

 
 
87db speakers are not very efficient, they require more amplifier wattage than you might think,,,,
 
http://www.axiomaudio.com/power.html
 
 
 

no speaker is very efficient from a power standpoint. Power delivered equals power consumed. your talking about my speakers sensitivity.

87db is pretty loud and i don't listen to my speakers at ear piercing spl's. it does depend on the room as well and the walls used cause frequencies reflect off the walls and that cause a db increase or decrease at certain frequencies. i say 35w if running in class A plenty of juice and the yamaha can run 2ohm loads no problem either. you be surprise how loud a 10w tube amp can sound through speakers(just saying).

it comes down to more than watts. usually all depends on how well the amp handles impedance dips and spikes load that matters. i haven't decided yet. i actually have couple more interesting people willing to pay me my asking price and one person wants to throw me an extra 50 bucks just to hold it. i didn't know i would get this much interests in my amp this quickly but i most likely decide to trade with the guy maybe. i'm thinking about it.

 

[scottiebabie]

Rex...buddy try to hold out for one of the higher yami CA series if possible. there u have a great combo of sweet 'natural' sound with true Class A juice (via a switch inside the case on CA8xx & up). i've often heard of the CA10xx being bandied around amoungst the best integrateds made. indeed i've got my eyes peeled watching for a score locally.
 
ps:FWIW my power meters shows me that the meat of the music happens within the initial 10w & most anything else is just headroom transients - all within reasonable sound levels ofcos. as someones once told me 'u can have all the power u want buts its the 1st 10watts thats most important'

 

[Inkmo]

Quote:

That the phono input is lower in level is not a great surprise - a modern CD player will have a much higher voltage level hitting the AUX input than what was available back then.  The "much bassier" part is harder to say, might be the cartridge, might be the Pioneer's phono stage.

Coming back to this from a while ago.  Got a cheapy mini to RCA cable that fit my receiver and ran my Rockboxed iPod through it and listened on my Grados.  I played the same track on vinyl and ogg and switched back in forth.  I was able to determine that my turntable is about 10dB quiter than something playing on AUX or tape inputs.  The sound signatures between the two were actually pretty similar, so I think whatever perceived difference I had in sound signature are either the fault of my speakers or my room.  The TT had some noise and ramble, obviously.  The bass and mids were maybe a little bleedier, but it's not high end gear, so I don't think that's a huge disappointment.  They were still similar enough that I occasionally forgot which was which.

 

[RexAeterna]

Rex...buddy try to hold out for one of the higher yami CA series if possible. there u have a great combo of sweet 'natural' sound with true Class A juice (via a switch inside the case on CA8xx & up). i've often heard of the CA10xx being bandied around amoungst the best integrateds made. indeed i've got my eyes peeled watching for a score locally.
 
ps:FWIW my power meters shows me that the meat of the music happens within the initial 10w & most anything else is just headroom transients - all within reasonable sound levels ofcos. as someones once told me 'u can have all the power u want buts its the 1st 10watts thats most important'

i was doing that when i first posted it. found out actually the R-9 uses the same power amp inside it as the MXX power amps from yamaha . person told me i can always trade back if i get better offer or don't like the yamaha.supposedly also from trying to find info around it on audiokarma some people actually prefer the later Rxx series to the CR/CA series. i know it's matter of preference. i have no idea. if i like the amp i might keep it. if not i can always put my sansui back up for sale cause i didn't realize how sought after it was. he was the first person to hit me up so i was thinking of going by first come first serve bases but i tell him i think i might wait it out a bit for a few days to see if i get any better offers.

 

[Skylab]

I tell you what, fellas, the Pioneer SX-1250 has pretty much turned my audio world on its ear. LPs and reel tapes sounded so awesome on it that I felt I had to bring my AVA DAC up to the attic so I could improve digital playback in this rig. That was a huge mistake, in that now I need to buy another one. No way can I live without the AVA in the vintage rig, This rig now sounds so good it's just SICK. I simply can't believe what the SX-1250 is capable of. It's driving $2500/pair loudspeakers from a $2K DAC, and it is delivering the whole enchilada, absolutely no doubt. I just got done playing the new Alison Krauss record on it for the 4th time in that last 3 days, and I cannot get enough.

 

[cifani090]

How can i use my headphone out for my ipod. I am using a 1/8 to 1/8 to a 1/4 adaptor. My amp is a Kenwood 9000gx

 

 

[Happy Camper]

For those willing to do some investigating, the 70s era receivers were the heyday. I remember the Bose 901 ver. II were unlimited power rated and a friend had one of the big Pioneers hooked up to them. To this day, that was a highlight system. Another was two pair of large Advents stacked on a Pioneer. Ahh the good old days of Utah woofers and Infinity ribbons, Snell and Dalquist, Apogees and Quads. 

 

[Happy Camper]

Quote:

How can i use my headphone out for my ipod. I am using a 1/8 to 1/8 to a 1/4 adaptor. My amp is a Kenwood 9000gx