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Amp not responding after bi amplifying speakers. I forgot to remove connecting bars from back of one of the speakers. What could have happened and is it likely to an expensive repair?

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  • rskang10 May 11, 2008

    Amp is an arcam delta 290

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Oh boy.......well, looks like you tied the output of one amp to the output of another amp. Kind of like tying the front bumpers of 2 cars together and having the cars push against each other. The stronger car wins and crushes the weaker car.

Unplug the amp. Check the fuse. If its blown, Unplug all your cables to the suspect amp, and try a new fuse 20 % SMALLER than the original. If the amp fires up, then take a voltmeter and check for DC VOLTAGE between the positive speaker connection and the negative speaker connection. Do this with both channels. If there is more than 0.05 volts of DC present for any one channel, while the power is on and there is no signal going into the amp, then you have problems best looked at by a repair shop.

If the fuse blows immediately, you have problems for a repair shop.

Repeat the procedure with both amps.

Best of luck......Rob

Posted on May 12, 2008

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Hi,i hear alot about bi wireing could someone explain what it actually is used for and what's it meant to do could I'm thinking bout trying it on my speakers?


It's a big job, but the results are great. Bi amp-ing is where the tweeters and mid range speakers are separated and connected to separate amplifiers. You'll need to have the correct gear before messing inside your speakers. You'll need to have another amplifier. Not knowing what amp you have now, getting a stereo signal into the second amp may be a problem since you'll need a line level signal into the second amp. An external crossover is best. Technically, you could use the ones in the speakers, since you'll be removing them anyway. Now for the speaker mods: On the panel where the posts for the speaker wires are you'll need to install another set of binding posts. We're assuming you have separate subs. Open the speakers and remove the cross over. The wires from the original posts should now connect to the mid range speaker. Add wires from the second set of posts and wire it to the tweeters. Now connect the output of the amp to the removed cross over and wire the mid range out on the cross over to the posts that connect to the mid range speaker. Do the same for the tweeters.If you have three way speakers, you'll have to run a 3rd set of wires from the crossover to the woofers in the cabinet using another set of binding posts. Controlling the volume on the second amp will be difficult since you'll have to adjust it manually. Remote control volume level will be lost on the second amp.

Aug 08, 2015 | Audio Players & Recorders

Tip

How To Bi-Amp And Bi-Wire Speakers!


What is the difference between bi-wiring and bi-amping?
Bi-wiring is using the same power source (amplifier) but separately connecting that power source to a woofer and a midrange/tweeter on a speaker.

Bi-amping is using two separate power sources (amplifiers) and connecting one amplifier to a woofer and the other amplifier to a midrange/tweeter on a speaker.

How do I bi-wire?
Your speaker must have two separate positive and negative connections (one set for the woofer and one set for the midrange/tweeter). Connect one wire between the positive terminal on the amplifier/receiver the positive terminal on the speaker. Connect the other wire from the negative terminal on the amplifier/receiver to the corresponding negative terminal on the speaker. Remove the jumper straps connecting the two sets of speaker inputs. Repeat this process for the second set of terminals on the speaker, connecting them to the same positive and negative terminals on the receiver/amplifier. Repeat the steps for each speaker you wish to Bi-Wire, connecting them to the appropriate terminals on your receiver/amplifier.

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How do I bi-amp?
Bi-amping is similar to bi-wiring, but involves separate amplifiers: one for the woofer and one for the midrange/tweeter. Passive bi-amping involves a direct hookup between each amplifier and the speaker terminals. True bi-amping involves hooking the preamp to an electronic crossover that replaces the passive crossover network in the speaker. The active crossover then connects to multiple power amplifiers.

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on Jul 13, 2010 | Audio Players & Recorders

1 Answer

I have Xavian xn125 speakers. How do I connect them in a bi-wired or bi-amp


Bi-wiring basically works wtih one amp. You need a crossover network and a signal doubler to use two amps (bi-amping). There are many diffent ways to bi-amp (horizontal, vertical,...) This link: - -http://www.soundstage.com/synergize/synergize031998.htm-- explains them all. Bi amping is usually not worth the extra price and complexity when used on smaller speakers.

May 13, 2014 | Audio Players & Recorders

1 Answer

Connect JVC MX-GT88 speakers to a differant reciever


If it has a bi-amp, you can connect the speakers to it. By the amplifier, if it's a stereo with bi-amp, be sure that it has at least 400 watts and up in order for the speakers to turn out great, if a receiver like a integrated amplifier, it may have like 2-10 connections, you can connect the speakers all together if it has more than 3 connections, if below 3, you may need to take the speakers apart and make it 3 way by connecting one wire to the tweeter, another wire from the tweeter to the main or mid speaker then one more wire from the main or mid speaker to the sub.

Feb 03, 2014 | JVC MX-GT88 CD Shelf System

1 Answer

On the connection for my Boston Vr2 Floor Speakers there are 4 connections which are connected vertically with a brass plate which is approx 1/2 " wide. I have lost one and the speaker does not seem


You can use a piece of speaker wire to replace the missing bar. those speakers are designed to be used with the bars in place for normal use. they can be removed if you are bi-amp/bi-wireing them.

Jan 14, 2013 | Boston Acoustics Audio Players & Recorders

1 Answer

How are you? For HK990,How to do bi-wiring connection of the speakers? thanks


Sabve your money - it's BUY-wiring.

http://www.harmankardon.com/EN-US/Products/Pages/ProductDetails.aspx?PID=HK+990

http://www.harmankardon.com/resources/Brands/harmankardon/Products/ProductRelatedDocuments/en-US/OwnersManual/HK%20990_OM.pdf

Bi-wiring does nothing but make you use twice as much speaker wire for the same electrical effect. Bi-amping assumes there are deficiencies in your electronics that must be worked around, again by using more speaker wire and separate amps.

Do some reading on the web about "bi-wiring".

Jul 16, 2011 | Harman Kardon Harman HK 990 Amplifier

2 Answers

I've just been given a pair of working Mission 780 speakers. There are 4 connecters on each speaker and 2 brass plates linking the left inputs to each other and the same with the right ones. What's the...


Do not remove the brass plates! These work as a bridge between the connections, making them a universal speaker. You only need one input. The other input should say "Bridge", which is an output to the other speaker, allowing you to run these speakers as monitors or subs. The bridge option runs both speakers on the same channel, making it a mono signal, so if they are used as monitors, everyone hears the same thing. If they are used as subs, equal power goes to each, reducing the chance of a blown speaker.


Hope that helps!

Feb 13, 2011 | Mission 780 Main / Stereo Speaker

1 Answer

Do LF and HF +/_ both be connected and if yes do they both go to speaker system A or separate to A and B on the amplifier.


From the factory, those are equipped with "jumpers", one for red-red and one for black-black. This allows for one speaker cable to power one speaker.

The jumpers can be removed, allowing for "bi-wiring", where you run two leads from a single amp channel to both inputs on each speaker. There's also "bi-amping", using a treble amp and a bass amp dedicated to each input.

If the jumpers are missing, you can use a short piece of stripped speaker wire to reconnect the upper and lower binding posts, just be sure to match colors.clmrt5000_0.jpg

Jan 10, 2011 | KEF Audio Q55 Speaker

1 Answer

Onkyo tx-sr601 bi wire with zone 2


SMCCARTY,
The idea behind bi-wiring speakers is to get the highest quality of sound by getting the sound from two separate sources doing separate jobs. Lower frequencies are harder for an amplifier to produce than higher frequencies. So it is common to give these frequencies to two different amplifiers so each can produce the highest quality of sound. By removing the low end from the top end amplifier, it provides the top end amp more headroom thus reducing the chances of clipping. Clipping can easily be heard from the tweeters destoying not only the sound but your speakers as well. It is common practice in pro and car audio to use separate amps for subbass, low, mid and high; four amps working together to their corresponding drivers (more or less depending on the system and type of audio being produced).

In your case, getting the two different sources from basically the same amp (power supply), would not accomplish the full intent of bi-wiring; it would just make more wiring for the same end result. However still a good thought on your end. Onkyo receivers are great because of their beefy power supplies. Not very many other brands have such strong power supplies. Denon's are close but not equal.
Chris-

Feb 14, 2010 | Onkyo TX-SR601 Receiver

1 Answer

How do i bi amp sx 1250 to get both channels of each side to work together


you are actually not bi-amping the unit, you are bridging the amp. this really only works as long as all channels produce equal power. next the bad news is that typically home stereo amps are not wired internally to bridge channels.

bi-amping a speaker refers to connecting on channel to the highs and on channel to the lows. the receiver would need to be be able to process the outputs via a crossover network to split the frequency range in half so the appropriate frequencies went to the correct speaker.

Sep 21, 2009 | Sunfire Theater Grand Amplifier

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