Question ( Power Rating )

I am fond of listening to a loud muzic because it gives me great satisfaction but unfortunately the fuse on my power supply line keeps on blasting.

At present, my amplifier rating is 150 rms 2 channel, and i hookup two 400watts nominal per ch. I used 30 & 40 Ampere fuse on the power cable.

if i try boosting all the settings including the equalizer, BBE ..."BOOM!" fuse is gone on the power cable near the battery. thanks in advance

What type of amp are you using? Have you checked your wiring for shorts?

What type of amp are you using? Have you checked your wiring for shorts?

I'm using GM-X924 amp pionner, 1 omh stable, I think wiring is ok, I was using 1 sub for the 1 Ch and the other 1 ch I'm using 6x9 no problem, Now I upgrade my system my HU is DEH-P8650MP pioneer and to my Amp I hook to 2 subs, Now I incounter the problem fuse alway blasting.
This is the specs of my amp
Continuous Power (20Hz-20kHz, 0.08% THD)
4 ch: (4 Ohm) 65Wx4
4 ch: (2 Ohm) 75Wx4
2 ch: (4 Ohm) 150Wx2
Maximum Power (EIAJ)
4 ch: (4 Ohm) 130Wx4
2 ch: (4 Ohm) 300Wx2
Frequency Response: 10Hz - 50kHz (0,-1dB)
Total Harmonic Distortion: 0.003% (1kHz, 4 Ohm)
Signal-to-Noise Ratio: 105dB (IHF-A Weighted, at 1kHz)
Dimensions: 10" x 2-3/8" x 12-3/8"
Features

Bridgeable 2/3/4 Channel Capability
1-Ohm Stable Operation
Class A Circuitry
PWM Regulated MOSFET Power Supply
Balanced Isolator Input Circuit
Gold-Plated Screw-Type Power/Ground Terminals
Gold-Plated Screw-Type Speaker Terminals
Gold-Plated RCA Inputs (x2)
Gold-Plated RCA Outputs (Pass-Thru)
Top Mount Controls
Variable Crossovers: 50-120Hz, -12dB/oct. (LPF/HPF) (Front & Rear Channels)
Hi-Volt Input Level Control (400mV-6.5V)
Dual-Fan Cooling
Illuminated Logo

Are you still runnig the 6x9's and the sub off one amp? Are you noticing the amp going into protection?

I would run the highes of the hu for now until you can get another amp.

[QUOTE=Patrick Simmons]Are you still runnig the 6x9's and the sub off one amp? Are you noticing the amp going into protection?

I would run the highes of the hu for now until you can get another amp.[/QUOT

I have separate amp for 6x9 now, just two subs i hookup to GM-X924 amp. Yes I was noticing the amp going into protection but after a while it will work again, now my problem is the fuse near the batery alway blasting. I'm planing to put 50ampers or 60amp, but i think my Amplifier is no safe for this rated of fuse.

Are you still runnig the 6x9's and the sub off one amp? Are you noticing the amp going into protection?

I would run the highes of the hu for now until you can get another amp.

I have separate amp for 6x9 now, just two subs i hookup to GM-X924 amp. Yes I was noticing the amp going into protection but after a while it will work again, now my problem is the fuse near the batery alway blasting. I'm planing to put 50ampers or 60amp, but i think my Amplifier is no safe for this rated of fuse.

You really wanna ffind out what is causing the fuse to blow because getting a larger fuse will only allow more unwanted current to get to the amp and possibly blow it. I would say first to check all wiring starting at the battery and follow it all the way to your amp. :2cents:

You really wanna ffind out what is causing the fuse to blow because getting a larger fuse will only allow more unwanted current to get to the amp and possibly blow it. I would say first to check all wiring starting at the battery and follow it all the way to your amp. :2cents:

Ok i will check my wiring from batery up to my Amp.

Thanks Patrick///////Cheers..............

Ok i will check my wiring from batery up to my Amp.

Thanks Patrick///////Cheers..............

Anytime.

what subs and how are they wired
how are the gain and bass boost set on the amp
how hot does the amp get

what subs and how are they wired
how are the gain and bass boost set on the amp
how hot does the amp get

Hot? hot is normal, My Amp have no Bass boost, but the gain, I set into maximum level, I dono if it is right to put the gain level into maximum, and also the setting from my HU is in high level / equalizer / BBE / Sub level. My HU is DEH-P8650MP - Sub output is 6.5V

your clipping your amp, your powersupply is over drawing causeing the weakest fuse in the line to blow overlading the 2nd causing it to blow...learn to set your gains and EQ's excetera and then come abck and ask. BCAE1.com.

Hot? hot is normal, My Amp have no Bass boost, but the gain, I set into maximum level, I dono if it is right to put the gain level into maximum, and also the setting from my HU is in high level / equalizer / BBE / Sub level. My HU is DEH-P8650MP - Sub output is 6.5V

Hot is not normal, at least not normally ;)
Very few amps actually do run hot in normal operation, most amps should be warm to the touch but not hot.


You still haven't said what subs you have or how they're wired, but it sounds like you're clipping the hell out of the amp causing it to draw WAY more current than it should (blowing the fuse) and causing it to go into thermal protection. The gain should definitely NOT be at maximum, especially not with 6.5V preouts, it should be somewhere between minimum and maybe 1/4 turn at the highest.

Amp

Hot is not normal, at least not normally ;)
Very few amps actually do run hot in normal operation, most amps should be warm to the touch but not hot.


You still haven't said what subs you have or how they're wired, but it sounds like you're clipping the hell out of the amp causing it to draw WAY more current than it should (blowing the fuse) and causing it to go into thermal protection. The gain should definitely NOT be at maximum, especially not with 6.5V preouts, it should be somewhere between minimum and maybe 1/4 turn at the highest.




This is the specs of my amp and I hookup two 12'' TS-W306SVC 400 nominal input didn't mention if it's RMS I think this is the same. Now I put 60 ampeers fuse but may be my Amp is not safe wiht 60amppers fuse?
Continuous Power (20Hz-20kHz, 0.08% THD)
4 ch: (4 Ohm) 65Wx4
4 ch: (2 Ohm) 75Wx4
2 ch: (4 Ohm) 150Wx2
Maximum Power (EIAJ)
4 ch: (4 Ohm) 130Wx4
2 ch: (4 Ohm) 300Wx2
Frequency Response: 10Hz - 50kHz (0,-1dB)
Total Harmonic Distortion: 0.003% (1kHz, 4 Ohm)
Signal-to-Noise Ratio: 105dB (IHF-A Weighted, at 1kHz)
Dimensions: 10" x 2-3/8" x 12-3/8"
Features

Bridgeable 2/3/4 Channel Capability
1-Ohm Stable Operation
Class A Circuitry
PWM Regulated MOSFET Power Supply
Balanced Isolator Input Circuit
Gold-Plated Screw-Type Power/Ground Terminals
Gold-Plated Screw-Type Speaker Terminals
Gold-Plated RCA Inputs (x2)
Gold-Plated RCA Outputs (Pass-Thru)
Top Mount Controls
Variable Crossovers: 50-120Hz, -12dB/oct. (LPF/HPF) (Front & Rear Channels)
Hi-Volt Input Level Control (400mV-6.5V)
Dual-Fan Cooling
Illuminated Logo

Im guessing you have the subs wired in parallel on one of the bridged channels?

The amp claims to be 1ohm stable but it has no power ratings for 1ohm, which is a little weird. Anyway, if it's 1ohm stereo stable, it's 2ohm bridged stable. If those subs are single 4ohm then you're alright, if they're single 2ohm then you'll need to wire them in series, not parallel.

I think the problem is you're clipping the hell out of the amp though.

This is the specs of my amp and I hookup two 12'' TS-W306SVC 400 nominal input didn't mention if it's RMS I think this is the same. Now I put 60 ampeers fuse but may be my Amp is not safe wiht 60amppers fuse?
Continuous Power (20Hz-20kHz, 0.08% THD)
4 ch: (4 Ohm) 65Wx4
4 ch: (2 Ohm) 75Wx4
2 ch: (4 Ohm) 150Wx2
Maximum Power (EIAJ)
4 ch: (4 Ohm) 130Wx4
2 ch: (4 Ohm) 300Wx2
Frequency Response: 10Hz - 50kHz (0,-1dB)
Total Harmonic Distortion: 0.003% (1kHz, 4 Ohm)
Signal-to-Noise Ratio: 105dB (IHF-A Weighted, at 1kHz)
Dimensions: 10" x 2-3/8" x 12-3/8"
Features

Bridgeable 2/3/4 Channel Capability
1-Ohm Stable Operation
Class A Circuitry
PWM Regulated MOSFET Power Supply
Balanced Isolator Input Circuit
Gold-Plated Screw-Type Power/Ground Terminals
Gold-Plated Screw-Type Speaker Terminals
Gold-Plated RCA Inputs (x2)
Gold-Plated RCA Outputs (Pass-Thru)
Top Mount Controls
Variable Crossovers: 50-120Hz, -12dB/oct. (LPF/HPF) (Front & Rear Channels)
Hi-Volt Input Level Control (400mV-6.5V)
Dual-Fan Cooling
Illuminated Logo

sigh
incresing fuse size is the fast track to blow your amp/start a fire.
The power wire needs to be fused to what the amp's original fuses where (inotherwords w/e fuse came plugged in the amp from the factory)
Every amp has thermal and current limitations in its componets, assumeing the powersupply isnt regulated increasing the fuse size simply allows it to reach thoes Thermal/current limitations. this inturn lets your MOSEFT's and perhaps even your coils and caps go up into flames, filling your car with some nasty smelling smoke.
Turn your gains down (match them correctly, JLaudio.com/tutorials) and read BCAE1.com. you are obviously competent because you make less gramatical and typing errors than myself (which isnt saying much but w/e, :rofl: iam competent so ya).
Keep any type of EQ down to a minimum. It is better to cut all frequincies to mach a trough in the responce than boost that frequincy. if you must boost a frequincy never boost the frequincy more than 3dB.

[QUOTE=sr20de4evr]Im guessing you have the subs wired in parallel on one of the bridged channels?

The amp claims to be 1ohm stable but it has no power ratings for 1ohm, which is a little weird. Anyway, if it's 1ohm stereo stable, it's 2ohm bridged stable. If those subs are single 4ohm then you're alright, if they're single 2ohm then you'll need to wire them in series, not parallel.

I think the problem is you're clipping the hell out of the amp though.

.................................................. ...........................................
Thank's to all of you guys, now the Gain is in normal position 1/4 from the highest, EQ's,BBE are also in minimum. About my fuse in the power cable, I put 60 ampeers, what do you think? it is goog or I should change into 30amps. ..Cheersss

i'd recomend trying at 30 first. my amp has 25. better to use a lower rating if you're not sure.

i'd recomend trying at 30 first. my amp has 25. better to use a lower rating if you're not sure.



In my Amp has two 30ampeers fuse, but into my power cable I used monster 60amp fuse, I was using 30&40 both are blasting because my Gain control, EQ , BBE, are in the higher level so thats why i put 60ampeers. So it's better to put 30? then I will reduce the setting into minimum level?

if the amp came with dual 30a fuses then a 60a fuse is what should have been used in the first place :)