Best Speakers for Sansui QRX 9001?
- Thread starter lohmantl
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sansui 74
Active Member
I use sansui SP 3200A for the front's and SP3500 for the rear I like the sound field of the 3200a because of the top firing tweeters, with vaulted ceilings the effect is pretty cool , and the rears the tweeters are at an angle the sound field crosses each other in the listening spot,the really cool part is I had a mod done on my 9001 so I can use the QBL-100 remote control so the sound field can be adjusted from right to left and front to back from my listening spot. I do plan on recapping the crossovers after almost 40 years of service they are due, the high's seem to be a little distorted at times, does any one have a list and type of caps needed for a recap of these speakers.Thanks Ken
phatster
Honey Boo Boob
I have the 7001 [less power],have had very good luck with DCM speakers...600's on the rear and 700's on the front.I briefly used ADS 710's and 880's but the DCM are more suited to my musical tastes...acoustic guitars/female voices.[Heartless Bastards are sweet on my system]
Betomon
Active Member
My QRX originally came with four SP-7500x, which can take some serious juice. I have them hooked up to an SAE A502 and the amp puts out 200 wpc before they break a real sweat. They sound best when loud and well-equalized, as they seem to have a tendency to play high bass really well but low bass lacking (mid and high range are beautiful.. super loud too!). I presume its because the woofers don't have that much excursion and are not very "free" or easy to pump around, but they can definitely take the power! They'll take all the 9001s juice and then some before being in trouble.
sKiZo
Hates received: 92644 43.20°N 85.50°W
Here's mine in the rack ...
I drive a set of McIntosh XR16s on the front channels with a bit of a boost from a McIntosh MC2205. The rear channels get interesting ... I have two sets of Bose 201s running thru a Dynaco QD1, so I guess you'd call it sexaphonic sound. The QD1 basically joins the two speakers on each channel out of phase with each other and allows me to control the volume on each for depth. Makes for a real interesting mix, and the room is deep enough to take advantage of it.
Here it is right now staged on the bench for a full recap and rebuild of the switchboard. That's the bugaboo of these things - the boards go intermittent over time. Kinda stalled right now waiting for a rainy day or three ...
No worries and no hurries ... I got a QRX6001 for a spare that has all the same vario-matrix quad goodness of the bigun.
PS ... you'll hear differing opinions on speakers for quad systems. Most would consider a matched set of four, all placed equidistant and the same height, all running the same power a priority ... but I've always used my rears more for an ambiance kind of thing. Smaller boxes on the rears will provide all the detail you need, as bass is more or less non directional, and you really don't need to push them that hard to get a real fine mix. One set of my rear speakers are mounted about a foot from the ceiling just behind the big comfy chair, the other set about ten foot behind that and a third of the way down the wall. I experimented a LOT to get that particular configuration and locked it down.
As always, lots depends on what you listen to and what kind of space you're working with, so just experiment and have fun with it.
I drive a set of McIntosh XR16s on the front channels with a bit of a boost from a McIntosh MC2205. The rear channels get interesting ... I have two sets of Bose 201s running thru a Dynaco QD1, so I guess you'd call it sexaphonic sound. The QD1 basically joins the two speakers on each channel out of phase with each other and allows me to control the volume on each for depth. Makes for a real interesting mix, and the room is deep enough to take advantage of it.
Here it is right now staged on the bench for a full recap and rebuild of the switchboard. That's the bugaboo of these things - the boards go intermittent over time. Kinda stalled right now waiting for a rainy day or three ...
No worries and no hurries ... I got a QRX6001 for a spare that has all the same vario-matrix quad goodness of the bigun.
PS ... you'll hear differing opinions on speakers for quad systems. Most would consider a matched set of four, all placed equidistant and the same height, all running the same power a priority ... but I've always used my rears more for an ambiance kind of thing. Smaller boxes on the rears will provide all the detail you need, as bass is more or less non directional, and you really don't need to push them that hard to get a real fine mix. One set of my rear speakers are mounted about a foot from the ceiling just behind the big comfy chair, the other set about ten foot behind that and a third of the way down the wall. I experimented a LOT to get that particular configuration and locked it down.
As always, lots depends on what you listen to and what kind of space you're working with, so just experiment and have fun with it.
lohmantl
Member
....and then again, maybe not....
I think that the moderator may have deleted the duplicate thread. Please continue on this thread. Thanks!
I think that the moderator may have deleted the duplicate thread. Please continue on this thread. Thanks!
sKiZo
Hates received: 92644 43.20°N 85.50°W
Are you sure they didn't delete this thread and you're having a flashback?
Not trying to scare you here. The 9001 was the flagship of the quad line, but if you haven't already heard, they're prone to failure on the board all those cute lil pushbuttons are attached to. It's double sided, and there's something like 50 pass thru joints joining circuits side to side that fail and go intermittent due to solder shrinkage and separation. That's why mine is in it's current discomboobalated state ... here's the board I'm talking about ready for the iron. One of the daughter boards has been removed showing the switches, and you can see the white lines that mirror the circuit traces on the OTHER side of the board. Every place you see an actual copper trace change to white paint, you'll see a blob of solder, and that's where it all goes wrong.
They go weird, missing a channel here and there, static, noise or somesuch ... and no amount of hoping, praying, or knocking it about will cure it. The pass thru joints need to be desoldered and cleaned, then bridged and resoldered with wire jumpers to get them back to working order.
Which by the way, is well worth it. Hard to beat a 9001 that's working right. And if yours is working right, consider yourself exceptionally lucky and go buy that winning superball lottery ticket. <G>
Once again ... not a derail ... but good to know. Save a lot of headscratching if and when things start to go south. The rest of the box tends to be fairly bulletproof.
Oh ... speakers. Some will advise you NOT to use the 2x power setting on these things. Never had any problems myself, but then again, I never do stereo. If you don't have any quad material to play with, have fun experimenting - most two channel material can get real interesting in SQ or synth mode.
Anyway - I won't clutter things up any more than I already have. Just some info I wish I'd had right up front ... we now return you to your regularly scheduled thread ...
lohmantl
Member
Thanks for the heads up. I just sent the QRX 9001 to Jim Showker (Trnsfmr) for a complete restore. I have heard really good things about his work and look forward to listening to the reconditioned unit.
sKiZo
Hates received: 92644 43.20°N 85.50°W
Ah, he's a hack ... ;-}
You getting the full monty on it? He does some really nice tweaks to make them better than factory. I milked his brain a lot before I ever got the courage to pop the top on mine. It's not your average recap job. I should have probably sent mine his way too, but I'm kerrrrrrrrrraaaaAAAaaaazzzzzzyyyyy!! <G>
PS ... have Jim send me the unit when he's done and I'll pass it on to you after verifying it's operation. Don't worry if it comes your way with a different serial number ... <nod nod nudge nudge wink wink know what I mean?>
lohmantl
Member
Yep, full deal. It is probably the last money that my wife will ever let me spend on electronic gear for the duration. ; ) That was awfully nice of you to volunteer to evaluate the operation of the modded unit. Send me your's first so that I have a base line for comparision. Then I will send mine and yours back to you for evaluation. ; )
IminClovisCA
Lunatic Fringe
QRX-7001 here....4 - Dynaco A-25's mounted high in my shop....
