Question about Legacy LA2098 Car Audio Amplifier

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Amp not working correctly goes into protection

Ok, I have switched from a 1000 watt amp to a 2400 watt amp. I am using the same wires that first started with. The 12v cable is an 8 guage. The first 2 months I had the new amp it worked perfectly fine, but suddenly it stopped. The fuses blew so i replaced them. I restarted my car and the subs made a quick thud and stopped. The green light came on for a sec then went straight into protection red led. I also replaced the 100 watt fuse near the battery. I cant really figure out why but help would be appreciated.

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  • 156 Answers

Disconnect the speaker wires from the amplifier and see if it still goes into protection mode. If it still goes into protect with the speakers disconnected, there's a problem with the amp; if not, you may have a blown speaker or a shorted speaker wire.

Posted on Mar 07, 2007

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Posted on Jan 02, 2017

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2 Answers

Protect Light On Amp Being Weird


Could try switching right and left subs. If the problem moves to the other side pull the wiring and redo.
Then if the wiring is ok check the sub.

May 15, 2013 | Jensen JPA600D - 600 Watts Digital Mono...

1 Answer

What cable is needed to supply a 9.5kw elecric shower


9500 watts is a lot of watts ... are you sure this is what is required?

Also missisng is the voltage you will be using.

Typically, a circuit of 120 volts at 20 amps is 2400 watts while 240 volts at 20 amps is 4800 watts. Either circuit would run on number 12 wire protected by a 20 amp breaker (single or double pole). You want to service a 10,000 watt load.

I am not a electrical engineer ... I think you should review the material that came with your shower and follow the manufacturers recommendation. Please read on ...

Number 8 wire should be good for 50 amp capacity. 50A X 240V = 12,000 watts. However, the distance the wire must run is also a consideration.

If this were my installation, I would beef the wire up to the next size. i.e., if the manufacturer says #8 wire, I would use #6 wire

Other things you should consider is whether the installation requires a GFI or other special breaker and special shut off switch and its location.

I hope to have steered you in the proper direction ...

Thanks for using FixYa.com

Jan 04, 2012 | Home

1 Answer

How many 100 watt light bulbs can I hook to a 20 amp breaker (120 volts)


A 20 Amp breaker will support 2400 Watts with a 120 Volt line.

120 Volts times 20 Amps (Amperes) = 2400 Watts.

Answer? 24 100Watt light bulbs.

HOWEVER, you should always allow 1 cushion of 100 Watts.
That would be 23 100Watt light bulbs.

(Wait until you add electric motors to the equation. Things start getting a little more complicated)

(I always use 20 amp breakers for lighting. 15 amp breakers for lighting is phased out.

Secondly a 20 amp breaker requires using 12-2 or 12-3 wiring. (12/2, 12/3)
SO does the receptacles.
Therefore 12 gauge wiring is used throughout the house, until you come to the heavier loads )

[ 12/2 = 2 insulated conductors, and one bare copper ground wire.
12/3 = 3 insulated conductors, and one bare copper ground wire.

Remember, with 12/2 the Black wire is ALWAYS the Hot wire. White is Common (Neutral). Bare copper is Ground wire.

12/3 has 3 conducting wires.
One Black, one Red, and one White for the Common. (Neutral) Bare copper is Ground.
Used for 3-way switches ]

For additional questions please post in a Comment.

Regards,
joecoolvette

Oct 30, 2011 | Hammering

1 Answer

I just installed a 1000 W 3-way toggle dimmer for a load of 12 75 W recessed lights, each holding 65W bulbs. When I turn the lights on, the metal plate around the dimmer gets very hot. Is this normal?


The watt rating is absolutely critical to the operation of the device.
The high heat is a direct result of too much amperage flowing through the dimmer.

Reduce your wattage immediately or stop using the dimmer.
You have a fire hazard.

According to the math, you have 20 - 65 Watt bulbs
Change 12 of the bulbs to 40 watt and you will drop to the 1000W max.
12 x 40 = 480W
8 x 65 = 520W
Total = 1000

However I am worried about this circuit.
A typical 15 amp switch (not a dimmer, but the switch) is maxxed-out at 1440 Watts.
So if you had 20 100 watt bulbs for 2000 Watts, it would heat up the 15 amp switch
It seems very odd that an electrician would put 20 lights on one circuit without having a 20 amp switch and 12 gauge wire.
Look at the markings on the switch you replaced and look for amps or watts.
And then look at the color of the wire cable inside your box ... 12 gauge wire is yellow and the lighter-weight 14 gauge wire is white.
If you have a white wire going to all those lights, then you are going to burn down the house unless the total wattage is reduced.
Volts X Amps = Watts.

I think your circuit needs a review to make sure it has the correct wire.
http://waterheatertimer.org/Color-codewire2.html

This being said, Lutron makes 1800 Watt dimmers.
You can web search: 1800Watt single pole dimmer
If you have yellow-colored 12 gauge wire, it can carry up to 1920 Watts

If you want more help, add a comment and I will answer

Nov 04, 2010 | Lutron 1000-Watt Incandescent Dimmer...

1 Answer

I have a 1000 Watt Inverter, along with a regular car battery when the electricity goes out; Question: Can I use the 1000 Watt inverter and connect a 100 amp, deep cycle battery? I use regular house...


Yes, just be sure connections are heavy enough wire, and obviously the inverter uses 12 vdc input. Hook jumper wires positive to positive, negative to negative, on all 12 volt batteries. Deep cycle batteries will work better than car batteries. Just remember, when re-charging them, that they last longer when charged slowly, so don't use a high amp setting on charger and to monitor them closely, and do it in a well ventilated area, away from any ignition sources.

Apr 14, 2010 | Schumacher 1000 Watt Inverter with 2 GA....

2 Answers

How many micro wave ovens will a 20 amp circuit support?


Please stick with me to the end ... some examples are for example only. There is no 1000 watt circuit per'ci.

This will not be possible overload, this is an accident waiting to jump on you, my friend

Install dedicated circuits for these ovens, my friend. It will cost you a little but will be better than having dissatisfied guests or talking to the zoning board or boarding house authority or (gasp) the fire inspector after the fire.

If you don't do this, when the breakers start flipping off, tenants will run extension cords to outlets that have power. A whole different and worse, problem!

Rule of thumb, lighting circuits should be designed to operate at 80%, for example, if you have 800 watts of lights on a 1000 watt circuit, you are at the max.

So, there is a possibility that your circuit for lights is already near max. Adding ovens is trouble. Don't forget the iPOds and cell phone chargers as well as lap top chargers, walkman chargers (older students), little TV's, DVD players, clock radio's, electric shavers, curling irons, steamers, popcorn makers, lava lamps and occasional electric heaters that will be snuck into the room.

What is a 1000 watt circuit ... good question. Ohms law comes into play here.

Volts X Amps = Watts
120 volts X 8.333 amps = 500 watts (a smoothie blender) 300 watts (slow cooker) 200 watts (hand mixer) = 1000 watts.


A 15 amp circuit will protect #14 wire and can carry about 1800 watts (a toaster (1500 watts), for example).

A 20 amp circuit will protect #12 wire and can carry about 2400 watts (i am using a big paint brush here. these numbers are pretty close but not exact and I am not a licensed electrician.)

When I wire, I aim lots lower, preferring to OVER build than to under build.

10 amp circuits are rare in modern homes. In general practice, if the need was to be protected at 10 amps, the wire used in the circuit would be #14 and it would be protected by the breaker at 10 amps. In this case, it is the device plugged into this 10 amp circuit that needs protection rather than the #14 wire (which would be technically oversized)

Another consideration for you is where is the water? If you have an outlet that is 5 feet from a water source (bath - kitchen - etc) it must be protected by a GFIC

A 30 amp circut will protect #10 wire --- but this is not a normal household circuit.

Maybe the best option is for you to have your electrician install a sub panel in the vicinity of use and run several 20 amp circuits from that location to the various rooms.

The answer to your question "How many (1150 watt)micro wave ovens will a 20 (amp circuit handle)" is TWO with nothing else on the line. The National Code requires dedicated circuits for micro wave ovens, BTW. A commercial application may have a different (more stringent) standard in your town.

Thanks for the opportunity to answer your question and thanks for your interest in FixYa.com

Please vote - positive comments appreciated by volunteer question catchers.

thanks

a

Dec 12, 2009 | Maytag MMV4205 Microwave Oven

1 Answer

I have 2 kicker cvr12s and a legacy predator 2400 watt amp and when I turn the radio up the amp goes into protection once they hit a decent time. I just down graded from 15s so I know its not a power...


you prolly have the subs wired to a too low of an ohm load...thats what happend to me. i had the same subs, and a 500.1 watt amp...and they still blew up..whire EACH sub to a 4 ohm...that should work.

Nov 18, 2009 | Car Audio & Video

2 Answers

Sony xplode 1000 watt amp


Make sure you don't have a short circuit somewhere. Make sure the wiring is all intact.

Also look at this link:

http://www.fixya.com/support/t132850-sony_xplod_1000_watt_car_amp_quit

Mike

Nov 07, 2007 | Sony Xplod XM-1652Z Car Audio Amplifier

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