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Celestion csw subwoofer, Speaker relay does not close. When putting a spkr on input of speaker relay there is sound, Relay driver transistor has .6 volts on the base, but only 15 volts on collector..

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Posted on Jan 02, 2017

gopakumarg43
  • 74106 Answers

SOURCE: the 130 volts relay is

Hello
If the all said voltages are there and still the relay doesn't work check the transistor drive it and the relay itsef. Relays will have the voltage and its coil resistance marked on it. Check it coil resistance and be sure it comes to the marked Ohms. If has the proper Ohm resistance, check the transitor drives the relay for open [usually collector to emitter]. If the transistor used there is a PNP type, coltage at its base should be low, and if its an NPN type the voltage should be high inorder to drive the relay.
Check whether the base voltage of the said transistr varies, that is going up and down, during the power on and off switch on the remote control If there is no volgage change, the voltage remains constant all the time, check the power on off voltage chage at the respective pin in the system control Ic. If there is voltage changes and there is no voltage changes in the transitor said. means there are some trouble between the path, and check whether other drive transistors are used in between them. If so check it too. Ok.

Posted on Oct 27, 2010

  • 4234 Answers

SOURCE: No signal through main amp

If the speaker relay does not activate, then the amp is in protect mode. There is a problem in that has been detected in the final stage of the amp. You indicate that you have 4V at the power transistors. That is likely the B+ voltage. What is the reading at the other 2 pins? Please post that and I should be able to give you some ideas.

Thanks,
Dan

Posted on Feb 22, 2010

Testimonial: "Many Thanks Dan"

  • 2825 Answers

SOURCE: a voltage drop from 12 to 6 volt or find the cuase of it

I'd start by checking ground connections. How are you checking voltage at the relay? Across the coil, or coil to ground? Coil to ground is important to check.

Posted on Oct 23, 2015

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OK
Voltage is relevant to where you live in the world. America it's 110. Europe mostly 220.
What you're asking is a very deep and complicated question.
I'm attaching a link with some articles.
What I suggest is that you find an upper end audio store and ask a 20 audio head to set up your system for you. Subwoofer Setup and Calibration for Best Bass

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Honestly, if you are talking about the speaker protection relay, the relay and associated circuits rarely go bad but instead respond to problems elsewhere in the amp. Anything from defective speakers, bad spkr. wiring to output transistors will cause this protection relay to not energize thus protecting the output stages and speakers.

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Since these can be bi-amped or bi-wired (and you don't indicate if that is the case) you need to make sure the jumpers are secure (see the last picture http://archiwumallegro.pl/celestion_f20-1062028198.html) or (if the jumpers are removed) that you have viable amplifier signals coming to each speaker within the cabinet.

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Tell your source (receiver???) that it has a sub and set it up to feed LFE out of that RCA jack.

Prove your sub pre-out works. Or send something like FM on Tape Out to the sub and see how that works out.

How did you hook a speaker wire to this model of powered sub? What was on the other end of that speaker wire? It's not designed for speaker level input.

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This speaker has a low frequency roll-off filter. Does your program source have low enough frequencies to pass through the filter? The effect of the subwoofer on most music is very subtle unless there is heavy bass in the source. You should try some songs that have a heavy under beat.

How are you driving the CSW -- by way of the line input or as a series connection to your full range speakers?

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If the crossover is made to accept speaker level input from amp then.....Amp/head spkr output + to crossover + input. Amp/head spkr output - to crossover - input. Crossover midbass + out to midbass spkr + input. Crossover midbass - out to midbass spkr - input. Crossover vari-tweeter + out to tweeter spkr + input. Crossover vari-tweeter -3 or -0 or -6 out to tweeter spkr - input. You have to choose for your preference. 0db makes the tweeter respond normally. -3db mean 3db lower in volume...and -6 means 6db lower in volume. Choose based on your liking.

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How to run wires is series fof 3 subs


If they are single voice coil speakers (1 positive and 1 negative terminal on each speaker) then connect from amps' Positive output terminal to spkr. 1 positive terminal, THEN spkr. 1 neg. terminal to spkr. 2 positive terminal, THEN spkr. 2 negative terminal to spkr. 3 positive terminal, THEN spkr. 3 negative terminal to amps' negative output terminal.

That is 3 speakers wired in series. if each spkr is 2ohms, then you will have a total 6 ohm load. If 4 ohm spkrs., then a total 12 ohm load, if 8 ohm spkr., then a total 24 ohm load.

Be careful because amps do not like these odd ohm load totals. You might get away with a 6 ohm total load. Depends on the amp.

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yes,,,i think it will on run 2 speakers,,, get y cables

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The easiest solution to use your subwoofer is to buy an amp for it. Any old stereo receiver from a garage sale will probably do just fine.
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  2. connect both speaker outputs of the cheap reciever to the speaker input on your subwoofer. make sure both black (-) outputs on the reciever connect to the black input on the sub, and the red outputs (+) on the reciever are both connected to the red input on the subwoofer.
  3. make sure the cheap receiver's volume is all the way down. turn your Sony up to about the loudest you'll listen to it. turn up the subwoofer amp until it's loud enough to sound good.
  4. leave the subwoofer amp alone, the Sony volume will all you ever need to touch from now on.

You can even now turn off your subwoofer / adjust the volume easily now!

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