Question about Alpine MRV-F545 Car Audio Amplifier

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Sony kv-16gw1 no power,relay continously clikking

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Re: sony kv-16gw1

I would suggest that you get a schematic for this device and the examine the power supply section with a multimeter.

Posted on Sep 08, 2007

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If i have a 4 channel 2000 watt amp, can i use 1600 watt wires if i only have 2 subs hooked up to it?

Yes, you will be fine. 4 gauge power wire is sufficient for a couple of reasons, the primary one being that most of the companies that are boasting 2000 watts for a 4 channel amp are off brand "web-retail only" companies, and they severely over rate the power output of their amplifiers. Secondly the supposed 2000 watts is peak power and not rms power. Peak power means how much power that amp can put out during absolue climax of the music or during a tone burst. RMS power is how much that amp will put out continously to your speakers or in this case, your subs. If you look at the spec sheet of that amp, in all actuallity you're probably only getting 200-300 watts rms even bridged.

On a side note, if you really want to push your subs hard, you might want to consider getting a mono block or "class d" amplifier and use that 4 channel amp to push your surround speakers. Class d/mono block amps are specifically designed to push subwoofers and will give you the most efficient power out and the best heat dissipation to withstand the output required to drive subwoofers. You'll get better bass and also more adjustability to tweak the sound levels coming out of your subs. Hope that helps.

Apr 02, 2011 | Car Amplifiers

1 Answer

I have two amps one for my speakers and the other for my subs it was working fine but recently one of them turned off. I thought was a short circuit and bought a new one but still doesn't work. Its looped...

When running multiple amps you need a relay most of the time for the remote wire off the radio this is because the radio was built to power one not multiples. one 12 volt relay may help .check local car audio store. also when hooking up relay it has to have a 12 volt power wire connected to it usually the center pin on the relay is your connection for the power wire the you connect your remote wire from the radio to the relay then connect each amp independently to the relay. Hope this helps write back if not . and if so leave feedback

May 09, 2010 | Stingpro ST444 1850 Watts Complete...

1 Answer

How do i wire the directed d600 2ohms stable

if youre subs are double coil the spkrs should have two sets of connections behind put red to red black to black that will give you the power you will need plus bridge it to youre amp for 1-2ohms continous power....make sure youre amp says continous power at 1-2ohms if it says in the manuel not stable it will just cut on and off at its peak because of over heating

Feb 21, 2010 | Directed Electronics D600 Car Amp

1 Answer

The light that has the lightning icon keeps blinking continous. what could be the problem

Hello djmalibu77,

You do not say if the amp has been installed and working properly for some time or if the problem began immediately upon installation.

If the amp was just installed, I'd suspect a wiring problem. Either a faulty ground or too low of an impedance.

If the amp has bee working properly and the problem just started, I'd start by removing all connections except ground, power, and remote and see if the amp powers up properly. If it does, reconnect the wiring one at a time to determine where the faulty wire or component is located. A grounded or shorted input, shorted voice coil, or a short or ground in the output wiring will cause an amp to go into protection. If these all check out, it's probably a fault in the amp itself.

Hope this helps.

Oct 31, 2009 | MTX JackHammer JH300 Car Audio Amplifier

1 Answer

Amp not staying on

Hello lyttle_matt1,

Connect a DC voltmeter between the "remote" (+) terminal and the "ground" (-) terminal on the amp. When you turn on your Pioneer, you should read 12-14V. If you get voltage for a second and then it goes away, either the incorrect wire from the head unit is connected, or the head unit remote turn-on is defective. If the voltage remains on the terminal and the amp immediately turns back off, it's possible that the remote turn-on is not supplying adequate current for the amp. To determine if that is the case, run a separate wire from a positive (+) accessory terminal (cigarette lighter or fuse box) to the amp remote terminal. If the amp then turns on and stays on, you'll need to wire a relay into the turn-on wire. The wiring for such a relay is shown here. Most any 12V SPST or SPDT relay from an auto parts store or Radio Shack will work OK.

May 11, 2009 | Sony Xplod XM-554ZR Car Audio Amplifier

1 Answer

Sub not very loud

Hey buddy your question caught my eye because i have a buddy that was wondering the same thing not so long ago-and im no expert but i have had my run with rockford fosgate amps and a few sonys as well. So first of all if you know fosgates well you know that they ALL put out more power than what they are rated at -example your 400 watt fosgate amp is rated at 400 watts but if you got it new than it came with a birth sheet that shows you how much its really putting out-im just throwing a number out there but its probably closer to 480 actual watts. Now you get the sony amp and it says its a 1000 watts but its all bs -it actually is rated at 400 continous usable watts- so the reason that its not any louder than the fosgate is because you bought an amp with almost identical power output. The other part of the problem is that you are limited by your speaker-you could buy an amp that actually puts out 1,200 watts and plug it right in to your sub and its going to probably blow within 30 seconds or quite possibly catch fire. The numbers when dealing with car audio that you have to pay attention to are the R.M.S. power ratings - never look at the peak or max wattage because its all bs and yea its all bs- As i was saying you are going to be limited by your sub because as it stands right now you cant put much more power on that thing without blowing or roasting the coil. All subs have a limiting factor as to how much air they can move- this is called X-MAX and that tells you how far the speaker cone actually moves from start to peak excursion- once you have supplied the speaker with enough power to reach its x-max then thats it -no matter how much power you put on it it wont move any more air than that-and you will create heat and distortion if you try and thats just begging for a blown sub. If you want it louder than upgrade your sub to something that will move some serious air like a jl audio w7 or orion hcca subs -those subs can get it on like dammmmm or easier than that get another sub and then your moving twice as much air at a fourth of the price of buying a balls out jl w7-anyhow good luck with that

Apr 06, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

I have 3500 watts of subs total of 1100 rms what size amp should

Make shure your running thick guage wire like 2-0 guage wire to get correct power to it also and check on amp the ohm's it can handle to make shure your not running to makny ohms.

Jan 12, 2009 | Car Amplifiers

2 Answers


This is simple the memory wire (yellow) is connect incorrectly. It needs 12 volt constant or continously. meaning 12 volts even when the car is off.

Dec 06, 2008 | Sony Xplod XM-554ZR Car Audio Amplifier

1 Answer

Leem m86t power mixer amplifier

probably blew the amps or the pre amp section

Sep 09, 2008 | Car Amplifiers

1 Answer

Remote Wire

You have a power supply problem and it is time to go to the repair shop and get it fixed. Sorry about the bad news.

May 04, 2007 | Dual XIA1000 Car Audio Amplifier

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