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Bridging a Carver amp

Bought a used Carver tfm-6cb, works great in stereo mode. I can see from the switch on the back that it bridges, but other choices must be made also;i.e., how inputs work and how speaker connections work. Can you help?

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Connecting a carver tfm-6cb amplifier


What is the question? More information is needed before somebody can help you. What are you connecting it to?

Apr 30, 2014 | Carver Audio Players & Recorders

1 Answer

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

Can I run two stereo amps from same preamp?


yes, and do tell, what speakers are you powering with these amps?

Jul 09, 2013 | Bose 901 EQ1915 Home Equalizer

2 Answers

I have 2 Sonance Sonamp 260's and I want to bridge them to run two different channels. Although I am not sure on how to do this. I am using my Carver HR-742 and I will be powering 2 Infinity SM-155's. I...


Register and download the manual for free at retrevo.com

http://www.retrevo.com/search?q=Sonance+Sonamp+260

It's not bridgeable according to the manual.

Who specs an amp at 3 ohms anyway? Your Carver might be just as effectively powerful.

May 01, 2011 | Sonance Sonamp 260 MKII 2-Channel...

1 Answer

I accidentally used the two outs (A & B) at turning on the pmp 5000 in the bridge mode. The mixer was normal during the first 10 minutes, then the mixer shut down and stop working, and now it doesn't...


Insufficient information ! Were you using a special cable used for bridged mode or used regular cables and just changed the slide switch to bridged mode? IF you had regular cables for A/B and just had the switch to the bridged mode NO DAMAGE WOULD RESULT. The bridged mode switch really only sets both amps to be driven from the same mixing buss as monaural. If you had a bridged cable and a plain one you would have overloaded one side amp. The amps have an "electronic" over current fuse and if you trip it you have to leave the power off for a minute or so and then re-power the amp. There is a HAZARD that I have written a tip in Fixya about PMP mixers. The sleeve of a 1/4 inch plug connected to side A is the HOT signal out of the amp as opposed to the B channel being the tip of the 1/4 inch plug...this assumes you might be using Speakon to 1/4 inch speaker cables. DO NOT under any circumstances use Speakon to 1/4 inch adapter cables as the barrel of the adapter female part on channel A is HOT to ground and you will pop the A amp.!!!! I am afraid that if you were using regular cables taht another failure occurred not related to the setting to bridged mode. The speaker leads for bridged mode are configured by the way the special bridged mode Speakon cable is wired... The slide switch only configures where the amps get there audio be it stereo busses or singly from one side. If after being off for a few minutes the amp still is totally dead, check the main power fuse which is alongside the power input connection in a plastic boat you pull out. IF THE FUSE IS BLOWN do NOT replace it as it will likely cause additional damage. Have unit repaired. There is a weak spot in these that results in arcing between layers of a multi-layer circuit board.

Apr 15, 2011 | Behringer Europower Pmp5000 Powered Mixer...

1 Answer

Center channel dosen't work on 10 yr old marantz 500$ receiver. Should I just buy a new one?


I'd do some more investigation first. Have you determined if the amplifier for the channel works or if it's a preamp problem using the built-in speaker setup controls?

With this unit's great audio processing features you might be able to bypass a failed amplifier using the pre-outs and drive an external amp for the missing channel.

You could always just get a modest stereo amp (like a Carver M-100T and bridge it), or use the extra channel for another center speaker or a subwoofer, for example.

Aug 12, 2010 | Marantz SR5500 Receiver

1 Answer

Bridging Carver AV860X


AV860 is coming up with bupkus.

Bridging instructions are usually marked on the back. Typically, move a switch and connect the pair's positives to the speaker.

Mar 31, 2010 | Carver PM950 Amplifier

1 Answer

No stereo signal out from yamaha p 2500 s


It's unclear what type of connectors are on the end of the cables(s) coming from your computer.

This amp only works with mono 1/4" TRS and XLR connectors, not standard RCA connectors.

Did you try the Right one in the Left Channel to see if the Left Channel worked?

Refer to the following manual and read up on the connectors (page 7) and the use of the Stereo/Parallel/Bridge Switch (page 8). When it is NOT in Stereo Mode the unit only uses the Right Channel controls and input.

http://img3.musiciansfriend.com/dbase/pdf/man/m_480824.pdf

STEREO/PARALLEL/BRIDGE switch
Use this switch to select the operating mode.
• STEREO mode
Channels A and B operate independently (as with a conventional
stereo amplifier). The Channel A input goes to the Channel
A output jacks, and the Channel B input goes to the
Channel B output jacks.
• PARALLEL mode
The Channel A input signal is output through both the Channel
A and Channel B output jacks. The Channel B input jacks do
not function. Channel A and B volumes can be independently
adjusted.
• BRIDGE mode
The Channel A input signal is output from the BRIDGE output
jacks. To adjust the volume, you must use the Channel A volume
control knob.

Apr 03, 2009 | Yamaha P-2500 Amplifier

1 Answer

Is that ok to do mono on Thump TA1001


yes, it is a bridgable amplifier, if that is what you are talking about. Look at the speaker output terminal and it should have markings on it for stereo output and it will have a line between the 2 terminals to use for bridging it. When you bridge an amplifier it is mono. There may also be a switch on the amp for stereo or bridged. Put that switch in the bridged mode. Connect one speaker to the speaker output and you have your bridged mono amplifier. If you plan on using 2 woofers, it is better and safer to use it in stereo mode with one speaker on each channel.

Let me know if you need any more help,

Dave

Aug 08, 2008 | Thump TA1001 Car Audio Amplifier

1 Answer

I need help with a system that I just bought.


Well it should be like this...Your amp is prologic which means that it has 5+1 outputs (sub out may be for active sub).Connect your speakers on specific output for each one (center,front left,front right,rear left,rear right and sub).Other devices,CD,tuner...connect to the amp with signal RCA-RCA cabels.On the back of the amp you have all marked inputs.You wasn't specific what do you want to hook?!If you want to hook this "new" to kenwood connect rec out of it to aux in on kenwood.If oposite kenwood rec out to "new" aux in.Hope that this is what you need

Mar 12, 2008 | Audio Players & Recorders

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