Question about JBL EC35 Center Speaker

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How to bi-amp wire a JBL EC35 speaker?

I perchased a used EC35 without the manual and I want use my home stereo amp to power it but I can't bridge the amp to 1 channel so I'm wondering if I could ether use each channel to power 1 pair of inputs(the box has 2 pair of inputs) without damaging the speaker.the amp's output is rated at 45w each channel into a 8ohm load. Do I need a some form of crossover between the amp and the speaker or can i just use the high pass filter in my processor to do the filtering?oh what setting should I use(150,100 or 80hz) that's the only settings it has for the center channel output .

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  • riderhoodred Dec 12, 2008

    I will never ask for help from this site again.Thanks for nothing.

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With help from a other site I bi-wired it using a bigger amp. It now gets 105w at 8ohm using a 18 octive slope filter set at 80hz.

Posted on Dec 12, 2008

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Accidently had peaker connect to A side while in bridge mode wud mixer be damaged


Hi, When an two channel (stereo) amplifier is connected in bridge mode the polarity of one channel is reversed, for this example say channel B. An identical (mono) signal is applied to both channel inputs.
The output is now connected between the two channel +ve outputs. As channel A's output goes +ve , channel B's output goes -ve, thus doubling the output voltage.
On this Behringer powered mixer, the bridge switch simply connects the power amp section inputs, the required way.
The bridged output is wired to the B output between pins 1+ and 2+ of the 4 pole Speakon connector. (Because usually pins 1+ and 1- are used, stereo operation is unaffected.)
So.... If you connect a speaker from the A output alone then I would expect it to work, BUT if there is already a speaker connected from the bridge output, then what happens will depend on the amplifier design.
At best the A channel will see too smaller impedance, and hopefully shutdown.
This is a Behringer, it has digital (class D) power amps, and it does Not claim any amplifier protection !!!
If the powered mixer works in normal stereo, then it is probably OK.
If it then does Not work in bridge mode it is likely to be the connector wiring.
All the best.

Apr 07, 2014 | Behringer Pmp4000 Europower 1600-watt...

1 Answer

I have a QSC RMX 2450 in which both channels are driven even though the amp is in stereo mode and I am only sending a signal into input channel one. It acts as if the amp is in parallel mode but I have...


My thoughts are that the amp has a poor channel separation but usually you can only hear a very quiet trace of the sound through the undriven channel. I agree with Taurus and make sure that the switch is making contact and moving all the pins to the proper points. This is a Home stereo amp, it comes with an extended 6 year warranty if you register it, I would check into getting a warranty repair before doing anything to it! Looks like a nice quality piece, those dip switches are a little bit confusing but the way it's built it is necessary to have them. It has a Dual Mono amp section so there is no way that any sound can be crossing over unless the swithches are directing it. The only way that can happen is in Parallel or in Mono. You could be in Stereo / Mono which would input both channels and output 3 settings a 1, 2 in Stereo & a Mono, Try hooking a speaker up to the Mono/ Bridge outputs and see if it's louder than just hooked up to 1 or 2. Parallel inputs will give you Mono 1 & 2 with Bridge off, and might give you Mono 1 & 2 with a bridged Mono if the bridge is on, like 3 channels all mono with one getting twice as much power as the 1 & 2 will put out. Although they have it labeled to not use it in those settings it's possible to do. I can see why you would be checking the switches.
It may actually be labeled incorrectly , as strange as it seems, many Chinese products have been made with labeling errors. Plus and minus have been wrong on Asian Made car amps so it's not that inconceivable that this may have some incorrect settings shown?

Apr 03, 2013 | Car Audio & Video

1 Answer

How do I wire up my 4subs in bridged to my peace 2600


Hi,

Please state the subs impedance, but assuming 4 subs with 8Ohm Voice Coil you CAN'T run them in parallel in Bridge Mono because this amp's minimum impedance is 4Ohm in bridge and 2Ohm stereo, maybe a series/parallel connection work, but what's the advantage to run them in Bridge mode? This amp delivers 900W per channel at 4Ohm, you can run a pair paralleled for each channel in a safe way and without the high-risk of your amp being destroyed, besides, amp power at 4Ohm Bridged is NOT recommended for continuous use, let me know your results...

May 13, 2012 | Peavey Pv 2600 Power Amplifier

1 Answer

Phoenix gold MS-2250. Can I run 2 DVC kicker L7s bridged at 1ohm without problems? Trying to get the most power I can. I'm running a 200 amp altenator with 0/1 gauge power wire and 10 farrad cap block. Do...


for better power yes one ohm but amp must be 1 ohm stable.and both subs will have to be 4 ohm subs to get the 1 ohm needed .If its a class D amp both speakers outs are bridged internally so either is ok to use look see if there is a bridging line on speakers that runs from one side to other and will say bridging. if not any side will work.a manu would help you find yours or you can look one up online.al

Dec 20, 2010 | Phoenix Gold Car Audio & Video

2 Answers

What do you mean by the subs should have more watts than the amp.and subs mean woofer ? actually i dont know any thing abt this. what is 8 ohm stereo, 8 ohm bridged,4 ohm stereo. etc etc...?


If your planning on using a stereo system in your car or home you need to follow some rules otherwise your just wasting money. The watts of a speaker means how much power it can handle. The higher the number the more power it can handle, and usually the louder it can get without distorting. If your amp has more power or close to the wattage rating of the speaker you will blow the speaker, it can even get so hot it ignites. The amount of ohms is the electrical resistance the speaker provides. House speakers usually have 8 ohms where car speakers tend to use 4. 8 ohm stereo means your left and your right are separate channels and each speaker has 8 ohms. 8 ohms bridged means you bridge the left and right channel to increase the power output of the amp and you have to use either 1 8 ohm speaker, or 2 4ohm speakers in parallel to prevent damage to the system. Same goes for 4 ohms. If I remember correctly you want your sub(woofer) to have a wattage rating 20% higher than the amp. Remember if the speaker overheats its no good, but most amps if they overheat they just shut off until they cool off, but only if they state they have a thermal overload protection.

Jul 12, 2009 | Solid Audio Formula Series F2000 2-Channel...

2 Answers

Ok . i have a pair of crossfire subwoofers, @


Your amplifier is 4 channel... and only 2 ohm stereo capable.

You will get the most power putting 1 subwoofer wired in parallel on each BRIDGED channel.

This will give you a 2 ohm stereo load.

Both + on 1 subwoofer to + terminal on amplifier bridged channel 1
Both - on 1 subwoofer to - terminal on amplifier bridged channel 1

Both + on 1 subwoofer to + terminal on amplifier bridged channel 2
Both - on 1 subwoofer to - terminal on amplifier bridged channel 2

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Jun 10, 2009 | DHD NTX-3102 Car Audio Amplifier

1 Answer

Legend Amp hook up manual.


Pretty Straight Forward get a 8 or 4 gauge amp wiring kit.

Run your hot wire to the +12V from the battery make sure to install the supplied inline fuse near the battery don't connect to the battery until installation is complete.

Run the REM to your stereo power ant. Wire. if available.

Run the GND to Metal Chassis Ground keep it as short as possible.

Run the RCA Cable from the back of the Stereo to the RCA Inputs or Low Level on the amp.

This amp is 2 Ohm Stereo Stable which means you can connect 2 (4 ohm) speakers in parallel to each channel or 1 (4 ohm) speaker on each channel or you can connect 1 (4 ohm) Speaker in bridged mode.

There are other speaker configurations you could use but you cannot drop the load below 2 Ohm in stereo mode and no lower than 4 ohm in bridged mode.

Hope this helps


Mar 25, 2009 | Legend LA1490 - American Legacy Series 2 -...

1 Answer

Need specs and wiring options


Eclipse 36401 eclipse%20pa36401.jpg
  • 105W x 4 Channel Max. Power Output at 2o.gif Stereo
  • 60W x 4 Channel 0.1% THD at 2o.gif Stereo @13.8V (RMS Continuous Power)
  • 40W x 4 Channel 0.1% THD at 4o.gif Stereo @13.8V (RMS Continuous Power)
  • ChannelFlex Crossover
  • Adjustable High-Pass Frequency (50-200Hz, L/R Independent)
  • Low-Pass Frequency (120Hz)
  • Adjustable Bass-Boost Level (45Hz, 0-9dB, F/R Separate)
  • High-Current, High-Speed Output Devices
  • High-Efficiency, High-Energy MOS-FET Power Supply
  • Audiophile Grade Component Selection
  • Intelligent 7-Way Discrete Protection Circuitry
  • Noise Reduction with Low Distortion & Ultra-Low Negative Feedback
  • High-Level Input - Add on Capability
  • Epoxy Composite PCB
  • 2o.gif Stable Design
Each 6 1/2" speaker will see 40 Watts
Each 6"x9" will see 521/2 Watts

Yes your solution is correct. Front wired in stereo, bridge rear.

Dec 29, 2008 | Eclipse Car Audio & Video

1 Answer

2006 12" Kicker L7 4 ohm


first whats the range in terms of WATTS that your 12" sub can handle in 4 OHMS ? second , lets check the AMP , POWER ACOUSTIK 1800 WATTS , Now thats a lot of power to drive a single 12" sub speaker . your amp is 1800 watts , per channel is around 500 watts , if BRIDGE thats around 1600 watts rms for ONE channel , if your sub can handle that kind of wattage fine , but it will not blow the amp , what it does is shuts down , some kind of protection mode , it will come back on after a minute or so. I suggest to use one channel in stereo mode , or purchase another sub to use the other channel. i hope this helps AJ

May 06, 2008 | Kicker 06ZX750.1 Car Audio Amplifier

1 Answer

GEM SOUND PA-750 POWER AMP


Hello plumer,

Locate a small slide switch at the back panel of your amp.
3 terminal and if you've snapped one of the wire, you'll see where the wire goes. But if it is 2 wire and using a ribbon type, follow the arrangement of the wire. No harm to the amp if you make a mistake. if bridge, all power will be shifted ti the left channel.

Good luck,

Mar 23, 2008 | Audio Players & Recorders

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