Question about Verge VGA300M Car Audio Amplifier

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Connecting a subwoofer to a mono amp that has 2 sets of terminals

Ok, I have a mono car amp that has 2 sets of terminals. This amp says that it is bridgeable. 195W RMS @ 4ohm. 265W RMS @ 2 ohm. Crutchfield says a mono amp is best for a dual voice coil sub. (2 sets of terminalss) It says take the + from one terminal of the amp to one + of the sub...then to the other + of the sub. Do the same with the negatives. This would be a 2ohm connection. My question is... would I be getting the 265W RMS @ 2ohm rating? What would I have to do to "bridge" this amp to a dual voice coil sub and what would my power rating be?

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Ok this gets confusing sometimes. Ok first look to see what ohm your subs are. If you have a dual 4 ohm sub When you run that on sub + to + and - to - then that will make that sub 2 ohm. its different on ohm if the sub is say a 8 ohm then putting the wires that way will bring that sub to 4 ohm. Now lets say you have 2 subs that are dual 4 ohm and wire both of them + to + and - to - and go bridge the amp which would be both wires from sub both + together and both - wired bridge on the amp will make it a 1 ohm to the amp. Please post what ohm your subs are and i can tell you alittle more about it

Posted on Oct 23, 2008

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I have a rockford fosgate punch P325.1 subwoofer mono amp that blows a fuse every time i start the car. I have a second pioneer amp but that works with no problems. How can i fix this?


Is it the correct size fuse ? Is it the power fuse or remote ? Either way check your connections going into the amp . Try this hook your other amp to the set of wires for the rockford if that amp has a problem its a wireing problem if not chances are its an interal problem on the rockford . Hope this helps !

Aug 19, 2010 | Rockford Fosgate Punch P325.1 Subwoofer...

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Bridging outputs on JBL BP300


Hello paulnkate,

The BP300.1 is a mono (1 channel) amp. You cannot bridge a mono amp. Bridging is a method of combining the outputs of 2 or more channels of a multichannel amp into a single mono load. On your amp you would connect a single sub to one of the +'s and one of the -'s (either one is OK, they are connected internally). The other pair of terminals is just for convenience, making it easier to connect, if you want to power 2 subs.

Hope this helps.

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AMP


That amplifier is only stable to 2 ohms.
You will only be able to use one Dual 4 ohm Subwoofer wired in parallel (all + to + on amp.... all - to - on amp.
This will yield a 2 ohm mono load.

It is impossible to wire (2) dual 4 ohm voicecoils to achieve a 2 ohm mono load.

If you're set on using both subwoofers - they will not be getting as much power from your amplifier with a 4 ohm load - but it is your only option.


SEE THIS LINK for the wiring diagram.

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Jul 02, 2009 | Kenwood KAC-8104D Car Audio Amplifier

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

To bridge a Kenwood KAC-9102D


Hello laurogleal,

The Kenwood KAC-9102D is a mono amp. There is no bridging. Having two sets of terminals is just a more convenient way of connecting two subwoofers. The amp is stable down to 2 ohms impedance, so it is safe to run 2 4 ohm loads in parallel.

Hope this helps.

Apr 28, 2009 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

Connecting subwoofer to kac-7201 kenwood amp


from your sub connect one short piece of cable from + on one side to - on the other side using the same diameter cable as you are running to the sub from amp . this will leave you with + and - on opposite sides of speaker these will then run to the amp +to+ and - to- on the mono side of connetor which is one left + and one - right and the amp switched to bridged

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KAC-9104D output terminals


ok i have the same amp and 1 2ohm dvc sub and was woundering the same thing but from futher research and askin sum xsperts. What i found out is that it is only one channel and even tho there are 2 (+) and 2(-) they actually connect inside the amp makein it one . so if u wanted to wire sumthing parralel u wouldnt have to hook wires from one coil to the other on the speaker , u can just hook it up to the amp. so basically both +'s and negatives on the amp are actually one within it so all the power if you only use one set of them and if u wanna add more subs its just easier to add to the amp by using the xtras .

Jan 13, 2009 | Kenwood KAC-9104D Car Audio Amplifier

2 Answers

Lanzar optidrive series 4000watts mono block digital compitition class amplifier


Firstly, sorry to to tell you, but their is no such thing as a 4000 watt car amp. Google Ohm's law and RMS .

Check the owners manual or website to find the amps minimum impedance. Usually 4 or 2 Ohms. Next,
check the woofers impedance , If unsure check with a Ohmmeter,
It's actually the resistance,but close enough.

If they are 8 Ohm and you twist those wires together (parallel circuit) your amp will see 4 Ohms.
If they are 4 Ohms (paralleled) your amp will see 2 Ohms.
Do not connect in a series circuit (+ amp terminal to a + speaker terminal and that speaker - terminal to the other speakers + terminal and that speakers - terminal to the - amp terminal) .
It creates phase problems, and sounds like ****.

Most mono amps are really internally bridged stereo amps ,it's cheaper that way, but it limits how low of a impedance they will handle. Read the specs. Use the correct size connectors, scrape off paint for a good ground connection.Use the right gauge wire and above all. Fuse that power lead at the Battery!!!!!!!!
ps . if you have dual voice coils thats another chapter.
Good luck, Sumthin

Jun 11, 2008 | Lanzar Car Audio & Video

2 Answers

How to install this amp properly?


The amp is a mono amp with only one output channel so it cannot be bridged. You'll use one positive and one negative per speaker. The positive speaker terminals are connected together and the negative speaker terminals are connected together so it doesn't matter which you use for the individual speakers.

Jan 09, 2008 | Kenwood KAC-9152D Car Audio Amplifier

1 Answer

Verge VGA300M Speaker terminals


Mono amps often have two sets of speaker outputs; this is just to simplify multi-speaker connections. The two positive and negative terminals are connected together internally, so they're effectively the same as one terminal. There's no difference between connecting both subs to the same positive and negative terminals, or using different terminals for each sub; electrically they'll all be connected together either way.

Jun 06, 2007 | Verge VGA300M Car Audio Amplifier

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