Question about Ultra Linear UL-2200D Car Audio Amplifier

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Amp bass cuts out cuts back on

I have the same problem i would like to know how to properly load at 4ohms

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Its a pretty simple principle...combine 2 speakers, and the ohm load gets cut in half. wire them in a series, and the ohm load doubles. for example, you have 2 subs that are 4 ohms a piece. if you combine both + and both - and put them to the amp, it cucts the load in half bringing it to 2 ohms. or, if you connect 1 + to the other speakers =, then run the remaining pair of wires to the amp, that doubles the load to 8 ohms. youll have to "double-ohm" it for dual voice coil subs. on each sub, you can do the same thing. either combine both + and both = into 1 wire to cut the rated load in half, or wire them in a series to double the load by connecting a + to the other coils =, and using the 2 remaining wires. once you have each sub wired the way you want it, then you can use the same rules when connecting multiple subs, by wiring in a series or parallel. it sounds confusing and its hard for me to put into works, but once you do it a few times its really easy. just remember the 1 rule...wire 2 coils parallel to cut the coils load in half, and wire it in a series to double it. hope it helps.

Posted on Sep 08, 2009

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Marantz problems


The speakers are 8ohms. Always try using speakers 6 or 4ohms. For B&W 683 on PM 6004 is too low. You should go for PM 7000 or 8000 series to catchup with 683. Also when you increase the volume please decrease the bass as well.
You need 8ohm 55w to 90w or 4ohm 80w to 110w speakers.

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I Have a set of Dual XNBP12D Car Subwoofer and curious about if


You need to look at the specifications of the speakers and the specifications of the amp you are hooking them up to. For example: The speakers could be 8ohm drivers wired in parallel which would produce one connection at 4ohms. Most "bridgeable" car amplifiers are very stable at 4ohms. However you must first find out if the amp is "bridgeable" which means it's taking both outputs and adding them together for one monoral output.

Now to the contrary: If both speakers are 4ohms wired parallel, this would produce a 2ohm load and alot of "inexpensive" amps will not work efficiently in a 2ohm load since it creats alot of heat! and will cause an amp to shut down.

Get your manuals out and look at the specifications for impedance.

Lastly, you've got a band-pass box that is specifically designed for a mono load. (one channel) since there is no internal divider between the subs. If you were to run this box in 2 channel or "stereo" the subs would not be moving in unisome and fighting each other for "airspace". Hope this helps

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1 Answer

My car's sub is ''sub-par'' my expectations


Hello css42103,

You did not specify the impedance or the model of your Audiopipe replacement woofer but if it is the TS-V6 DVC 6.5", then the impedance of each voice coil is 4ohms. If you wired the coils in parallel, you now have a 2ohm load to the amp. At 2 ohms, the amp tries to produce more power, and even at moderate volume, can be driven into clipping causing distortion. Not good for the amp. Definitely not good for the woofer.

I'd try wiring the woofer coils in series and see if it stops cutting out.

Hope this helps.

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1 Answer

I have two xti 2000 amp running with electrovoice speaker 600w


This is most likely to be a heat issue where the amps overheat and shut themselves off then cool down and turn back on. Please check that the amps have proper ventilation and that any air ducts are clean.

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1 Answer

Cut out


Do you have ONE pair of 12's? Are they single voice coils? Dual? Bottom line, you are either over driving the amp (bass controll up high on the head unit (stereo), or the "load" on the amo is too low, meaning 2-12'" dual voice coils parreleled would give you a 1ohm load. Need more info, need to know what the bass is set on on your stereo, what size power wire to the amp, and I can wrap up the solution. ok?

Take care,
Larry T
Winona Lake, IN

Jan 28, 2009 | Kicker ZX400.1 Car Audio Amplifier

1 Answer

Installation


Hi JJerky,

I suggest we go for 2 ohm to preserve the amp and not heat things up so bad.
Your Subs are Dual Voice Coil(DVC) and 2 ohms each coil. I am going to tell you the wiring to insure you get balanced response from both Subs. We will wire the Subs Voice coils in Parallel to make them 1 ohm each. Then we will wire the Amp to the subs in series to make the total load on the amp 2 ohms. When you have series to both subs each sub gets the same current.


Example of my coding :SUB1VC1+ = Subwoofer 1 Voice Coil 1 Postive terminal.

SUB1VC1+ to SUB1VC2+
SUB1VC1 - to SUB1VC2-

SUB2VC1 + to SUB2VC2 +
SUB2VC1 - to SUB2VC2 -

AMP + to SUB1VC1 +
SUB1VC1 - to SUB2VC1 +
SUB2VC1 - to AMP -

This should give you a good repsonse.

Adjust your Bass Gain down very low at first. Also cut you LPF to about 60 hz. Crank up the volume on a bass test Audio track, Adjust the Bass Gain up unitl you get distortion. The turn it back a little. This is proper setting for your Gain.

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