Malibu Rapper said:Hi,
If you are only running a set of separates, chances are slim to none that they impedance is too low unless you got a short somewhere. It's worth a check with the multimeter as well as the sub. You should have about 4 ohms on each side of the components speakers and your sub should be within 2 and 4 ohms depending on the sub.
The head unit does not put out speaker level outputs. It's very similar to RCA outputs. It should not cause the amp to shut down unless it's putting out over 8.5V RMS (that's what your amp can take). Did the amp shut down when you were cranking the system?
One thing about that X603 amp, I considered buying that amp for my system. But there was a LOT of refurbished X603s on the market and I thought that was kind of odd. There were tons of them on eBay. I went to an authorized Xtant dealer and he told me that they get a lot of returns on those amps so it wouldn't surprise me if those amps have some kind of bad design that causes them to break often. He said in his own words that the X603 is "a piece of junk." That's all it took me to decide on the Audison 3 channel. I can't say enough great things about this little powerhouse.
It'd be interesting to find out what the triggers are for the overcurrent as the manual does not say. Is it high line voltage or is it an impedance trigger? And why does the amp no longer function after it triggers? Does the amp not work now? What if you disconnect the speaker wires? Does the light turn off?
Acura NsX Pilot said:Just a question but do you think maybe the amp is not getting enough current ?
D'Ecosse said:For a quick test, disconnect your speaker wires & RCA's but leave the power connections; turn on your amp - does it overcurrent?
Yes - amp is bad
No - try re-connecting the speaker wires
Does it over-current?
yes- speakers or connection may be bad
no - try connecting the RCA's one channel at a time (you can do this step "hot")
Does it over-current?
yes - may be a head or wiring problem but could still be the amp
Do you have any other source of audio (like a home piece of equip or camcorder with audio outs)? Try connecting this into the amp RCA inputs & see what happens:
Does it overcurrent?
yes - problem is with amp
no - problem is with head or wiring between head & amp.
01blacks4 said:call 480-813-6200 on monday, ask for Coop. he is our tech guy. tell him marc asked you to speak with him. ask him how much he, or chris (another guy at work) would want to fix the thing or if he knows someone who will.
FWIW i though all xtant amps had input jumpers on the board so you could run from very low signal in to speaker level in. if so this would eliminate your problem which would mean the amp has yet to be repaired.
this does happen alot, more that it should because the factory only has a "standard testing procedure" that it has to pass, if your problem is out of the box......it takes alittle convincing sometimes.
you may also try united radio, they will charge you again also but they have better tech's that what you may have already dealt with.
D'Ecosse said:If problem is same (i.e. overcurrent light on) with your other RCA source (or no input) then your NSX head input should not be the problem; the BS about speaker level outputs is not an issue and obviously you had this working before.
Also, I would find it hard to believe you'd get an O/C protection from the input side- if anything it would just clip & be horribly distorted. The most likely causes are the amp itself (output stage) is bad or an output speaker wiring problem or blown speaker(s).
Are you confident you have the speaker wires connected properly? (no disrespect intended)
Can you please try the speaker connection test - disconnect them & report back as to overcurrent or not.
If it is OK, (i.e. no overcurrent) you can try reconnecting your speakers one at a time (do NOT do this "HOT") to find which one is the problem.
If it is overcurrent with the speaker wires disconnected, then the amp is still shot.
Should always pretty much start with the gains towards the low end & tune from there, regardless of your current problemShould I have gains set all the way down?
I would expect soIf I connect something and the light comes on, shouldn't it go off if I disconnect the problem?
I would start with your selectable input jumpers on the board to "0db"
See this illustration to determine where they should be set
Also set your balanced input jumpers to "enable"
I agree. The first time they sent it back to me, the fan had a blade broken off it. The way they package it was the culprit. I told them and they said either send it back or buy one and they would reimburse me. Well since I couldn't ever get the stupid thing working, I had forgot about it.D'Ecosse said:cool - glad it all worked out -
Although, yet another demerit against Xtant - fixed one problem & created a new one!