Question about Speakers & Subwoofers

1 Answer

Crossover i think i got one crossover down on technics my sb-a10... how can i test it?? I have a multimeter at home. If not, can you have electrical schematics of it please!

Posted by on

  • pepinmax Feb 01, 2008

    Thanks a lot robotek, it works!

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,512 Answers

Not alot to go wrong with a crossover. Putting your ear up to each speaker and listening to each driver can steer you to the problem area

  1. Dry solder joints often affect a crossover on a pcb. check all soldering and res-older if you can anyway.
  2. Coils and inductors seldom fail on a crossover. They can be checked with an ohms meter.
  3. Check the capacitors with a capacitance meter, although when they are faulty they often physically look "cooked", leaking or feel really lightweight and empty. Replace them anyway if you think they are suspect.
  4. check any power resistors or attenuators. They will need to be replaced if not at their marked resistance
Good Luck. happy to go further if you cant get it working. If this gives you enough to service your crossover then rate me"fixya" Thanks

Posted on Jan 30, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Need schematic


Try contacting Carvin for the schematic diagram.

Dec 03, 2013 | Speakers & Subwoofers

1 Answer

Looking for an owner's manual for Acoustic Research 310HO loudspeaker. I would like to know the correct crossover frequencies for bi-amping.


Try
mauritron.com

They have the world's largest library of
owners user instructions operating guides
and
technical repair schematics circuits service manuals

I'm not connected to them, just a satisfied user.
Also if you don't find your item in their listing then ask and they will get it for you

Sep 17, 2011 | Acoustic Research 310 HO Speaker

2 Answers

Hello........ looking for a schematic for Bose 501 series 3 speakers. I need to replace the fuse in line with the tweeters.... its blown & does not have a value on it (unmarked, quick blow, twin lead,...


Did you find a solution? Dunno if it's much help, but I just today picked up some 501s - Series I I think - ugly heavy brown material grilles - but with a manual! No fuses in these, but booklet recommends installing your own in-line fuse holders (!?). Specifies a BUSS AGC-3 fuse for amps under 50wpc; or a MDL-2 fuse for amps over 50 wpc. Can be placed is series with either or the two signal wires. Very strange.... Robin

May 14, 2011 | Bose 501V Speaker

1 Answer

I have an old set of EV 1502 PA Speakers. One of my Cabs the 15" driver stopped working... I can plug the Horn and the 15" Driver in Separately and they both work which I think means I have a problem with...


The crossover network is a combination of a LCR circuit. since all these arre passive components you will not have a problem to find the actual fault. Since you have confirmed with the drivers, the line in to the network from the speaker wires must be traced for continutiy, use a good multimeter. now check carefully on the PCB-printed circuit board.- for any track damage on it, if so loop and connect. The main driver is usually in parallel to the main line but with a croos over of a cpacitor and a series inductor. This will be the culprit, either it has come off from the PCB or open out by burning off. replace or reconnect. I am sure it can be sorted out easily by your carefully analysis. Hope this helps. Good day

Jul 19, 2010 | ElectroVoice . Speaker

2 Answers

Behringer 212A, lost its highs, is there a way to test the horn vs the driver circuit? = Duane


Hi duane
To answer your question;
Usually you would use an ohm/impedance meter or multimeter to test the voice coil right at the horn`s terminals then with the crossover network connected you would go down the line all to the speaker box terminals to check for an open line.
But if you don`t have a multimeter you can rig a small AAA battery with two wires connected and listen for a "click" sound as you touch and release the horns terminals.
Of course this would only tell you if you have an open voice coil but it is often enough.
Hope this help Good luck

Apr 01, 2010 | Behringer Eurolive B212A Speaker

1 Answer

Looking for a replacement speaker for my Technics SB-LX7 floor standing 3-way speakers the top speaker on one of them is broken. Model # Technics EAS65PH313A6


OK. I suggest typing the model in on EBay and getting the cheapest one there is.

-K.R.

"I know what I know because I know what to do!"

Feb 07, 2010 | Technics SB-LX70K Speaker

2 Answers

MTX SW2 Power Surge Damage?


Try the fuse first then if no problems alls good , but if it still hums it could be the crossover board inside , if you love your sub like i love mine you will just replace the crossover if need be . Smirf 617

Jun 12, 2009 | MTX SW2 Subwoofer

4 Answers

Damaged JBL Eon15 Tweeter


you can probably by a generic type of motherboard from a shop like JAYCAR lookem up on the net ]

May 25, 2009 | JBL EON 15-G2 Powered DJ Speaker With EQ...

5 Answers

How do I test an 8-0hm speaker or horn with a digital multimeter? Help!


What? You can take a friggin multimeter, stick it across the terminals and if it does nott give you any resistance back you fryed the voice coil. If you get 0 ohms it means you fired the voice coil. If you get 4, 8, 16 ohms then your good to go.

Jun 22, 2007 | KEF Audio Cresta 2 Speaker

Not finding what you are looking for?
Speakers & Subwoofers Logo

Related Topics:

451 people viewed this question

Ask a Question

Usually answered in minutes!

Top Speakers & Subwoofers Experts

 Grubhead
Grubhead

Level 3 Expert

4576 Answers

Michael Edwards
Michael Edwards

Level 1 Expert

53 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Speaker and Subwoofer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...