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When i connect the speakers to my old and not used for a while nad amp the sound blasts out from the speakers,this is with sound control on zero on my amp.Could this be a fault with the dial control on my the amp.
cheers
james
Hey, i will suggest you clean the potmeters, switches and and connectors.
check these repair notes:
Repair note noise hum and distortion
Repair note nad amplifiers 3240pe, 7240pe, 3155
on http://www.miguelovitch.dk/repairnotes1.htm
And this cleaning movie guide, where you can see cleaning spray used:
http://blog.miguelovitch.dk/2007/09/17/elektronik-reparation-og-rensning-1/
best regards michael miguelovitch
Sounds to me that the vol control has lost its earth end connection So yes its a problem with the dial control
You couls try some contact cleaner But better still lift of the lid and base if possible while the amplifier is not plugged into the power socket and see if you have a dry joints around the vol control pot
regards Trev
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Sounds exactly like a failing volume potentiometer. If you can access it try some tuner cleaner or just exercise the heck out of it with no power applied.
While you're at it, treat every knob, switch and button for the oxidation that comes with age or little use.
Try unplugging all of the speakers and see if that amp is still distressed. If it looks clean and happy start adding speakers until it returns (or not).
Bear in mind that 901's require exclusive use of any amplifier they use. You shouldn't expect to use conventional speakers alongside them on the same amp. The reason is that the 901's require the use of their dedicated Active Equalizer to shape the frequency spectrun to match their drivers' response curves, resulting in a flat sound output. Applying that kind of equalization to any conventional speakers will sound to sharp at the extremes and may even potentially damage them.
For connection I would run a pair of RCA cables from the L&R Audio Line OUT of whatever preamp or source you're using to the Active EQ's Line IN; then the EQ's Line OUT to a NAD amp's Line IN. DEselect any Tape options on the Active EQ, attach the 901's to the new amp, set the NAD volume controls pretty high (and leave them alone), run through any level setup procedures in your control electronics for volume, etc and you're done.
Never connect incompatible connections. Speaker outputs are for speaker inputs. Period.
The various inputs on this or most any amp are for Line Level signal with the exception of anything explicitly labeled "PHONO" as that would be for a non-preamplified turntable ONLY.
From what I have found online, Lab-In was a NAD feature that restored the frequencies that were rolled off when turntables were being used in the (assumed) preamplifier that fed this amp.
"NAD belleived at the time that practical PHONO stages and the preamp and power amplifier stages be rolled off at subsonic frequencies to prevent subsonic wow and flutter from Turntables and supersonic frequencies (EMI/RF/Radio) signals from getting into the system in the first place. Their notion was that if your ears cannot physically hear it, then why amplify it. For the PURIST, there were a set of LAB IN amplifier inputs with more extended response called "LAB IN" inputs"
Use the Lab In's UNLESS you have a turntable source.
Doesnt sound like the selector as it "sometimes" works. Redo the speaker connections on the back of the amp and speakers first. If it persists, swop the speakers and cables, if the problem swops, then it could be inside the speaker or the cable, if still the same then amp has dry joints/loose connections probably
you could get a bluetooth dock and cables or just get a saeltech bluetooth speaker and run it off your computer .It will let you run your i tunes or media player and go thru your playlist or artist songlisting can also be operated remotely on the speaker unit ! Volume And tracks!!! swamp ratt!!! AAEE!!!!
Dear Tim,
Yes, you can connect your NAD as a preamp to the Carver power Amp.
Connect the NAD's pre-out to the input of the Carver Power Amp. You can then connect the Klipsch speaker to the Carver. Set the gain control on the NAD.
Now you should be able to control all the input and the main volume control from the NAD.
Try Earex wax softener, worked for me!
Seriously though, are you sure it's the amp, could someone have cooked your speakers without you knowing?
Have you checked the media source? Garbage in equals garbage out with any system.
Your terminology leads me to think you are an audiophile, so have you checked the stylus?
Have you put in some new furniture or rearranged the room. This can make a big difference to the way a system sounds.
Check all the usual things like your signal connections.
If you have a PC to hand in your listening room, use it as a sound analyser, plug a microphone in and connect the line out into your amp you should be able then to measure the responses of your setup with white noise, swept tones and impulses for room dynamics.
I seem to remember there are freeware utilities for this kind of thing.
Good luck
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