Question about JVC MX-D401T Shelf System

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Speakers I would like to connect 2 additional speakers. How and what spec. speakers can I use?

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Your system not being a real powerhouse to begin with, I'd find the most efficient speakers available (read: small) and cable each channel like the picture near the bottom of this link...

The two points at the left are your speaker terminals. Plus on top, Minus below.

Speakers - 288ee14.gif

Posted on Apr 04, 2009


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Can you please tell me the right way I should wire 2 left 4ohm &2 right 4ohm speakers to my lightning audio b4.250.2 amp, thank you

I looked up the specs for the amplifier
  • 4 ohms: 85 watts x 2 channels
  • 2 ohms: 125 watts x 2 channels
So it will take 2 ohm speaker loads, therefore you can parallel 2 speakers together, that is to say connect 2 speakers to the + and - terminals of the left channel and 2 to the right.
4 ohms paralleled with 4 ohms = 2 ohms
So you are OK

Nov 10, 2017 | Lightning Audio Car Audio & Video

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What wire do I plug in for the subwoofer cause I I have read cables but there's 2 and I only have 1 connection for the sub on the back of the stereo

This subwoofer is probably powered directly from the amplifier and doesn't have an internal amp. The connections are probably the same type as for any other speakers. And, there are probably additional connections for the rest of the speakers. The connection on your amp is likely an RCA phono plug connector that sends low level signals to a powered subwoofer. To connect a passive subwoofer, one without a built-in amp, the main speaker outputs connect to the subwoofer and are then sent to the regular speakers connected to additional terminals on the subwoofer. You may need an owner's manual for the subwoofer to determine how it should be connected.

Aug 23, 2014 | Audio Players & Recorders

1 Answer

Pioneer VSX 1020K - Zone 2 Setup

I referred to a similar zone 2 arrangement for a Yamaha receiver. It shows a separate amplifier and notes that only analog signals are sent to zone 2. The analog output from a source must be connected to the analog input on your Pioneer unit for zone 2 to work. Your outdoor music environment will be limited to left and right front speakers surround

Jun 03, 2013 | Pioneer VSX1020K Receiver

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I cannot hear any sound from my Dell monitor 1702FP. Are there speakers installed within the monitor?. VGA cable is connected. When I use a spare monitor using the VGA cable the sound is loud and clear. ...

The Dell 1702FP doesn't have speakers.The specs of the Dell 1702FP are available here: . (BTW neither does the Dell 1704FPT.) However, some Dell monitors can have a sound bar (speaker set-up) mounted on the monitor.

VGA cables don't carry sound. Check if a second cable (an audio patch cable is connected to the computer and the second monitor). (There are some cables that actually bundle the 3.5 mm patch cable with the video cable for convenience. (I've seen a number of DVI cables with that bundle option.) The plugs will separate into separate units at each end.

Other monitors do have speakers built in - look for a 3.5 mm audio input jack with the rest of the input connections on your monitor. There are some monitors that accept an HDMI input with a 3.5 mm audio out jack; these monitors don't have speakers and thus are enabling a daisy chain to connect the speakers to the monitor. So you do need to be careful and look for the audio in label.

You can attach a set of speakers to your computer using the audio out (look for a lime green 3.5 mm jack on the back of a desktop). For laptops or to use the front audio ports, look for a headphone jack.

I hope this helps. Please add a comment with more information about your monitor and computer for additional assistance.

Cindy Wells

Mar 11, 2012 | Computers & Internet

2 Answers

How to in install the speakers to it

You will need either powered speakers or an amplifier for the speakers. If you have powered speakers with built in amplifiers, use balanced audio connection cables from the MAIN outs of the mixer to the speakers, Use XLR or 1/4 inch TRS cables.
If you do NOT have powered speakers you will need amplifier as well and speaker cables in addition to the audio connection cables above.

Dec 29, 2010 | Behringer Xenyx 1002fx Mixer 10 Input 2...

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I have a punch 1000 amp and 1 l7 15 and i need to find out how i can get it wired and adjusted to 2 ohms please

I am not familiar with "I7 15" but will assume it is a speaker. Please correct me if I am wrong. As for the amp setup:
The amp output impedance is not adjustable. The amp is rated at 1 ohm which means you can connect any amount of speakers onto the output as long as the sum total of the load you connect to the amp is not less than 1 ohm.
Speaker impedance is also not adjustable but the total load connected to an amp can be altered by altering the way the speakers are connected to the amp.
The formula for calculating impedance looks very complicated but is quite simple.
First you have to understand the difference between series and parallel connections.
See diagram.
Series: Connecting 2 or more speakers by using the negative on one speaker connected to the positive on the next speaker.
Parallel ( // ) : Connecting the positive of a speaker to the positive of the next and the negative of the speaker to the negative of the next.
Connecting speakers in series is handy when you have two 500 watt speakers for instance and want to run them off an 1000 watt amp. Connecting them in series will assure that you dont over power the speaker and damage it. When connecting speakers in series the total of the impedance of the speakers is the impedance of each individual speaker added together. In our example the total impedance will be 2+2+4=8ohm
The parallel connection impedance calculation is a bit more complex.
1/Rtotal = 1/R1 + 1/R2 + 1/R2
1/Rtotal = 1/2 + 1/2 + 1/4
Rtotal = 0.8 ohm

If you have Microsoft Excel installed in your computer you can enter the following formulae as shown into the spreadsheet. After entering the formulae you must enter the values of the speakers into fields A2, B2 and C2 and it will calculate the total impedance for you.
Using less speakers just remove C2 from the formula.
Using more speakers add for instance D2 into the formulasuzman_8.jpg
For your specific amp make sure the load you connect is not less than 1 ohm. It is safe to connect more than that but using less will result in the amp protection circuitry to be activated.
If you use one speaker only then there is no adjustment to be made.
Your particular amp can also connect to an additional amp( and speaker) by using the "PASS-THRU" connectors. This saves you from using an additional set of signal wires from the head unit.
I hope that you now have a better understanding of amp wiring.
If you like you can leave a comment with the specs of the speakers you want to use (wattage and impedance) and I will draw up a diagram for you to use when wiring the system.

Nov 12, 2010 | Car Audio & Video

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Adding 2 speakers to x-240 kit

Sure It will work, doing it that way 2 speakers will be left, 2 will be right and your sub will just play the deep sounds from one or both channels.

Jan 10, 2009 | Logitech X-240 Computer Speakers

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I just bought a KDC MP-235 to put in a 95 camaro with bose amplified speakers. I ordered a amplifier intergration component to reduce the output of the 50 watt per channel head unit as to have better...


Yes, the Kenwood KDC MP-235 has two (2) line level outputs (RCA types red & white). However, these outputs internally passed through an electronic crossover/filter making them appropriate for subwoofer amps only.

If your unit is an MP-235CR, then the same outputs would be for the rear amp (not subs) and are full range (unfiltered).

If indeed your unit is an MP-235 and if I may make a suggestion, still connect the Kenwood to four (4) speakers. It would not be technically correct to leave the internal amps operating with no load (speakers) connected. Additionally, you would be getting 200 watts (4 X 50) more to your system (since it is already there).

If your Bose amp & speaker are subs, then no issue, however if the Bose is for a full range of speakers, then only the woofer part would be working efficiently.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

May 15, 2008 | Kenwood Car Audio & Video

1 Answer

Wiring speakers


For a Sony CDX-CD7000X, the connection would be:
and the wirings would be:

The images were cropped from the unit's spec sheet.

Hope that this be of help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Nov 29, 2007 | Sony CDX-C7000X CD Player

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