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Lab l4 bass amp smoked my speakers - Audio & Video Receivers

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Hi,
If your description is to be taken literally, and smoke did indeed come out of the speakers, your output transistors have shorted out, and put the full power supply voltage and current through your speakers.
The amp and the speakers will need to be serviced. The speakers will need new voice coils at the least.

Posted on Sep 30, 2008

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E1@cox.neti have a jvc rx-809v and I was wondering if it was posibbie to hook up an a sansui amp to compinsate for the lack of base


You mean 'bass'.

Amplifiers only amplify what is already there in the signal. By design, with all controls set to neutral or flat, they don't create or loose anything.

Speakers, on the other hand, are responsible for turning the electrical input into moving air. Good bass usually requires moving a lot of air.

Poor speaker placement or speakers wired out of phase with each other can **** the bass out of a room.

Web search for articles on bass response and speaker placement.

This receiver has a built-in Equalizer. Perhaps you could use IT to compensate for the tonal shortcomings of the speakers and environment.

Aug 12, 2011 | JVC RX-818V Receiver

1 Answer

When I hook up my speakers the music sounds horrible its like the bass is not transfering over to the speakers how do I fix this problem


Lets check the simple stuff first. Check the speaker calbes and make sure that they are both hooked up the same way. If you have colored cables, then make sure that both "red" (for example) wires are connected to the positive(+) terminal of the speakers. If you have one to + and one to -, you will get sound out but lose the bass. This is because the speakers will be out of phase. This is the most common cause of the loss of bass response.

If that does not resolve the problem, please check with headphones to confirm that the problem is with the amp and not the speakers. Update this with your results.

Thanks,
Dan

Nov 15, 2010 | Denon AVR-3805 Receiver

1 Answer

Sound will not come out of bass speaker


Inspect your wiring first if the connection is done right(or reversed, some units are polarised due to internal crossover circuits or coils and capacitors).Try a working speaker(put volume to minimum) to check if sound is coming out of the amps,if there is- check internal wires going to the speaker, if you have an analog multitester,check the resistance of the speaker terminals,if it indicates 8 ohms the speaker coils are not open but it might be burned or if no resistance or the meter needle doesn't move-replace the bass speaker.

Oct 30, 2010 | Yamaha RX-V361 Home Theater Receiver

1 Answer

Can a car amp be hooked up to this recevier for more bass power


Amps don't 'make' bass. They amplify what comes into them as accurately as possible. Your source makes the bass and speakers recreate it to varying degrees of fidelity.

You might add a powered subwoofer to your speaker complement if you don't already have one.

Automotive audio is highly over-rated as far as performance specs are concerned. They basically get away with lying about everything because there doesn't seem to be a standard by which they are judged as home audio is.

What car amp are you contemplating and what speakers would it push?

May 20, 2010 | Pioneer VSX-403 Receiver

1 Answer

I need to turn up the bass on my denon amp


A few ways to get more bass here you go John.

If you have a sub check your level and crossover settings on sub and on amp, on the sub half volume and 90-120 crossover should be kicking,

Run a speaker level test on your denon and turn up sub channel.

if you want more bass in your speakers press the tone button on the front panal. for some i believe its in the menu system under parameter

Depending on what the source is you can turn up the bass on the source. aka ipod, some dvd players and what have you.

Chris B
PHTBA tech

Dec 20, 2009 | Denon AVR-587

1 Answer

My peavey ul 115 bass bin will only work through its bi amp input. Why is this ?. The other one works fine but when I switch speakers I have the same problem. Can you help please ?..Thank you.


The bi-amp jacks bypass the internal crossover. You need to look at the crossover section and see if an internal protection fuse has blown or if hte crossover itself is smoked.

Dan

Mar 04, 2009 | Audio & Video Receivers

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I have a Holden Wasp XL base amp. 100 watt?? Quite old, 70's ish. CAn you tell me how many and what size speakers it will run. Thanks, Lance


hell yer, built in New Zealand... or Aussie, cant remember. Best sort of speaker box for bass is 4 x 10inch quad box. Next. a single 15 inch, or use both together. The head you have I think was more of a PA system than a bass amp, but will certainly do the job. So long as you are not trying to keep up with a Fender twin, or a Marshall stack. 100 watts don't go far for bass. I would go for the single 15 inch driver to more the most air.

regards
robotek

Jul 06, 2008 | Audio & Video Receivers

1 Answer

Car audio


Yes you can use the speaker output in conjuction with the rca pre-outs...but depending on the wattage of the amp, there may be a big difference between the loudness of the front speakers over the rear speakers. If you have a 4 channel amp you can put the rear speakers on the amp also and lower the input gain for the rear speaker. Or if you have a 2 channel amp, you could use a passive crossover to filter out some of the bass to the rear speakers since they are smaller, this would help prevent over-driving them...as it is normally too much bass that distorts and blows a speaker. I'm not sure what you are asking about the hi-rear preouts vs the mid front pre-outs. If you decide to use the amp for the fronts you should be able to connect the amp from the front preouts of the deck. Hope this helps.

Mar 30, 2008 | Audio & Video Receivers

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