Question about Alphasonik PMA800DA Car Audio Amplifier

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Turned on radio amp started smoking on the side where the bass boost goes still got power on amp and voltage meter still works but bass boost does not work thats where the smoke came from

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I would get it looked at, you never know. when ever your stuff starts to smoke it might work for a lil while but sooner or later my opoin it will be just junk.

Posted on May 11, 2010

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I have 2 12in kenwoods and a 1200 watt pyrimade amp, how can i hook these up to be the loudest


1st have your subs facing inwards towards the front of the car, not facing out the boot, This creates a better bass.

Wire 1 sub to one channel and the other sub to the other channel.

Turn down your gain as low as possible and then power everything up.

turn volume to desired loudness and then start turning up the gain slowly, if distorts a little turn in back down a notch.

avoid using bass boost, I agree it sounds great but it puts more strain on your amp and shortens its life.

after sorting out your gain, tweak all others until sound is bassy and clear with no distortion.

If you would like to use bass boost, turn on bass boost first, then up your gain etc.

Jan 16, 2013 | Pyramid PB915X 1200 Watts 2 Channel...

1 Answer

Can i use my jensen jxp340 amp with my one 800watt 12" 4 ohm subwoofer?


Yes, technically you can, however you will be putting both your sub and your amp at risk. One of the worst things you can do to a sub is underpower it. The easiest way to explain it is n ot giving enough power to the sub leaves it starving for power. The motor structure ends up working too hard to try and move the cone properly and what happens is the sub will usually seize up rather than blowing out in the term you usually hear (ie, I had my system cranked up and I blew my subwoofer).

Secondly, in an attempt to get any real sound out of the under powered sub, you'll probably end up cranking the gain and bass boost on the amp which ends up overworking the amplifier quite a bit and can in turn lead to fried out amp chips, burnt up circuit boards etc.

Thirdly, by maxing the gain bass boost you're going to end sending a lot of distortion through your subwoofer in an attempt to get some decent bass. Distortion kills both subwoofers and speakers alike.

So to answer your question, yes you can hook up your subwoofer to that amp and yes, it will probably play for a while but I wouldn't recommend it. Look for a class d or mono block amp to push your sub as these will give you the most power and best heat dissipation. They are designed to push subwoofers specifically and you will get better sound and longer life out of your equipment. A good rule of thumb is look for an amp within 100-150 watts of both your RMS power handling and your Peak power. Remember, when it doubt, always go a little bigger on the amp side of the spectrum. It's easy to "tune down" an amp by having the gain and bass boost at a lower level (50%, 25% etc), than to turn 'em all the way up just to get some bass and end up prematurely blowing out your sub, amp or even worse, both.

Dec 01, 2010 | Jensen JXP340 Car Audio Amplifier

1 Answer

I have a kicker 750.1 amplifier. I was playing it one day pretty loud and it cut out once the bass hit and started smoking.The gain was up about 1/4 and the bass boost was about half way. what could of...


I would say that your subwoofer Or speaker leads have shorted out...when the bass hits as you say it drives the amp hard but if it is trying to dump power onto a shorted speaker or speaker wires it will blow the output power transistors not to mention other vital components of the power amp...i suggest you test your speaker leads with a Multimeter on the ohm setting before connecting a repaires or another amp.. to make sure there is no short on the leads and that the resistance is around 4 ohms or so depending on how you have your drivers wired...but anything lower than 2 ohms will cook an amp! you can normally pick up a meter from anywhere for around $10..

Jan 14, 2010 | Kicker (ZX750.1) Car Audio Amplifier

1 Answer

What settings should i have my 760 watt pioneer amp set at for amp gain and bass boost in order to have the best sounding hit from the subs?


they want you to "level match" the amps head units voltage from the rcas .this is best done with the radio at 3/4 volume , turning the amps gain dial till music distorts then backing off till it sound s clear .if theres other units in the signal chain (eq,x overs, ) see if they too have gain /volume controls . it goes down the line if thats the case . .

Nov 23, 2009 | Pioneer Car Audio & Video

1 Answer

What duz level adjustment do


Hello,

The level control controls the input level coming from your head unit (receiver) to the amp.

Your Sony users manual is a little vague on how to best adjust the level and other controls.

Here is one method that some installers use and works well with most amps.

Most 10" subs sound best between about 80-100hz and below, so start out by setting the LPF at about 80hz. The HPF will not be used. Next turn the bass boost and gain all the way down. Turn on the radio and set all tone controls, bass, midrange, treble to flat, usually "0" on most head units. Turn the volume up to approximately 3/4 volume level or just until you begin to hear distortion. Now, back the volume down until the distortion is gone. Next turn up the gain control on the amp until you hear the subs start to distort then back the gain down until the distortion disappears. Next turn the bass boost up again until the subs begin to distort, then either back the bass boost down or back the gain down until the distortion is gone. You may need to play around with the bass boost and gain controls to get exactly the sound you prefer.

Hope this helps.

Mar 28, 2009 | Sony Xplod 1100 Watt Max 10" Subwoofer,...

1 Answer

JL Audio 1000/1 hook up to alpine type x


it is all up to the user, you can start by turning the input up slightly, I would not go over halfway because it usually starts to distort, then the bass boost up till they distort a little then back down a quarter turn.

Mar 10, 2009 | Jl Audio 1000/1 Car Audio Amplifier

1 Answer

I turned my 15" L7 kicker and smoke started to come out the box


As stated before, knowing the impedance of your subwoofer would really help the situation. Either way the link I have provided is to your subwoofers manual (Incase you dont have it)

But since you have said it has smoked, if it still works I recommend turning the bass boost down (Bass boost causes alot of heat within the subwoofers voice coil and even within the amp itself and should never be maxed out.)

Here is a link to your manual for the subwoofer.
http://www.kicker.com/sites/default/files/SoloBaricL7Series.pdf

So as a solution to your issue, keep your bass boost turned down. You should almost never need it if you have tuned your amp correctly (You have a very serious subwoofer there)

Consider yourself lucky if your subwoofer is still working without issues.

Feb 09, 2009 | Kicker Solo-Baric L7 S15L72 Car Subwoofer

1 Answer

Hifonics Nemnsis powerin off.


need to charge you batteries up more bass cuts out because not enough power! i have the same issue! 2 amp slow charge is the best way to charge your batteries!
or caps!

Jan 27, 2009 | Hifonics HFR1 Amplifier Accessory - Remote...

2 Answers

Left side speaker and bass not working


Do you have a bass-boost switch on your unit? If so check that, go easy,but you can try to be a bit rough moving it back and forth up and down or so. If that wont work you can always try walling it!

Dec 27, 2008 | Bose Wave Radio

1 Answer

Need to know the right setting to apply for my subs


You need to match your amp's input voltage (the gain) to the output voltage supplied via your deck's preouts. Turn you radio up to normal listening level, and turn the amp's gain until you induce audible distortion then back it off slightly. Set the bass boost and crossovers to on and type (highpass for front/rear full range or lowpass for subs).

Apr 26, 2008 | Jl Audio 12W3 Car Subwoofer

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