upgrade in motorhome

by impulse_buyer
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Hi all...brbrI recently purchased a motor home an I am looking to upgrade the tape deck. the existing setup is simple 2 speakers up front and 2 in the rear bed.brI wen't and bought a pioneer deh-p4600 mainly for the mp3 player and the super tuner III which I thought might help out in remote locations. I also bought a 12"sub 400 watt and a 300 watt sub amp.brNow, how do I connect the sub amp. The pioneer has 2 sets of preamp outputs along with the normal speaker wire connections. can I connect the wires as normal and then brconnect the sub amp to one of the preamp outputs?bror am I going about this all wrong?brI am not looking to spend alot of money this new ride cost enough, but my 13 year old girl has taking a liking to music.brSo I f I am going to listen to her type of music we might as well hear it a bit louder.br brThanks for any helpbr


Replies (3)
swez on 04/17/2004 12:23:44
So far, you are on track about hooking up the new Pioneer Deck (HU). Use the internal amps to power the stock speakers for now. You can always upgrade these to better aftermarket speakers later. The RCA outs on that HU can be used to drive the sub amp as well.

There are 2 sets of full range in this HU. Use the rear channels to feed the sub amp. That way, you can fade/blend the bass with front speakers or send all audio to the rear speakers and sub for her enjoyment mostly. Get some good ear plugs when you are out shopping too... may need them. j/k

Tell more about this sub and amp you have now. Make and model numbers for each will help a lot. Having that detail, can walk you through the rest of your options and action steps.

Do you have a 12 volt power port in this rig? If yes, you (may be able) to use it to power the sub amp w/o running extra long RCA wires. It is better to run a longer speaker cable to sub than very long RCA's from HU to amp. The HU output voltage at RCA's is only 2.2 volts for this model. So, the closer the sub amp is to the HU, the less signal loss and better noise rejection too. Same thing with Remote turn on lead from HU to amp. The shorter, the better.

Just depends on how many amperes of current the port is fused at and how much power the sub amp will consume. The details on amp, will hopefully tell that story.

Swez

PS You win the "DAD OF THE MONTH CLUB AWARD" !!! This is a family rated site. So, we can bestow such awards when we note random acts of good judgment, advice and considerate behavior. hehe
Welcome to CK!


impulse_buyer on 04/17/2004 16:45:17
Thanks Swez for the reply,

The sub is a pioneer TS-W30F
And the amp is a wallyworld special Virtual Reality Sound Labs VR3 300 watt single channel.
The power point is just a lighter I believe and I am not sure if the wire is heavy enough for the amp . What size wire is sufficent?

I was going to install the sub and amp under the couch (lots of room there) ,but you say to keep the amp as close as possible to the HU. I guess that I can place it next to the drivers seat prolly 6 to 8' of cord will do, the couch might add another 8'. Thanks for the tip. :)
As far as speakers go they are 6" coax and from the same era as the tape deck. The wires are of lamp cord size and would be a pain to replace. What would be a good choice for upgrading the speakers.


swez on 04/17/2004 18:28:06
Most cigarette lighters are fuses at 25 amps of current. Your amp probably has a fuse or two in the back or sides. What value is that fuse? Knowing that, we can determine the power wire gage needed.

You can mount it up to ~20 feet away from the HU. Just need quality RCA wiring kit from HU to Amp location. The better RCA lines have a stringer wire for the REMOTE turn on function. That's the Blue w/white striped one, off the HU harness.

NOTE: Some amps do run a bit warm at higher output levels. If you do install it in the couch area, make sure there is enough air flow to keep it cool. Most decent amps have thermal shut off protection if the amp gets too hot. As for a power line and ground, use a #8 gage wiring kit for this amp. The #8 wire will handle up to 50 amperes of current flow.
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To install power line, map out a route for the main power feed wire from POS terminal on battery, through firewall to amp. Install an inline fuse close to the battery, the same rating as the one used in that amp. (probably 25-30A.) Then, you will need to ground the amp to bare metal close to amps actual location.

When installing RCA signal lines, try to keep these away from the power line feed wire. Sometimes we get alternator noise if the power and RCA lines are in the same location over long runs.
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The sub mentioned, I cannot find any specs on that sub # other than that it is probably a 4 ohm, single voice coil model 12". The "F" designator, usually means "free air" installation which requires no real enclosure. Can you confirm that number again? (or specs off the box it came in) I found the TS-W30M woofer at wally's web site. Here are the specs on that one:


Pioneer TS-W30M

Specifications:
600 watts maximum music power
150 watts nominal power handling
20 Hz to 4,000 Hz frequency response
4 ohm impedance rating
91 dB sensitivity
Recommended enclosure: 1.5 cubic feet
Accessory grill available (UD-G305)

If they have the "M" version, that would sound better than the "F" version. The "M" recommends a 1.5 cf sealed enclosure.
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Finally, if you wish to upgrade to better interior speakers, consider Alpine, Infinity, JBL, Polk and many others. Based on a budget number, there are many great option in 6.5" rounds. Avoid cheaper Sony or Pioneer speakers as you may not be happy once installed.

As for the wire gage for your speakers off the HU... use what you already have. No need to mess with that if they work well already.

Swez

PS We are web shoppers for the most part here. Getting quality gear at low budget prices, are our specialty. Yes, you can browse WalMart, Best Buy or Circuit City for most... "run of the mill" gear. But if you really want better gear at very competitive prices, we can show you some neat stuff. We are tight wads and can make your buck stretch a long way... half the fun in shopping... is to get quality gear at low prices.




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