My Mmats 3000.5 mono block amp keeps going into protection, without a load. Any ideas why? The brand is Mmats pro audio. the next page does not list this brand.

It's a inexpensive amp, and poorly made. the amplifier failed. you won't be able to fix it unless you open it up and happen to have a degree in electrical engineering, or have the schematics to that particular amp and access to the parts like the transistors/finals and power supply bits to replace the damaged parts. chances are you blew mosfet(s) in that case the amp is a paperweight.

Sorry for the bad news. I had a couple of Boss amps and after second one fried went with another brand. Ck out amps on Azon.

Best to you.

From the information I could find on that amplifier, it is stable at one ohm and provides 700 W RMS at that resistance. With two four ohm dvc subs you can wire them parallel/parallel for a final load of one ohm.

" this amp "? The one that only you can see? :>D

i believe your amp is 2ohm stable so be sure your speaker are wired for a 2ohm load or higher anything below 2ohm would throw the amp into protect

your subwoofer is wired incorrectly to your amplifier. Figure out which ohm load of subs you have and then what ohm load options your amp is stable at. Next go to either the Crutchfield website. find their learning center. go to subwoofer wiring diagrams. or go to www.the12volt.com and find their section on it

Your amp based on what you say would have no problems whatsoever with an 8 ohm load, not even if it actually has dual 4 ohm coils and you wire them in parallel giving a 2 ohm load (don't know your particular sub).

Every good car amp has protection circuits to prevent itself or the speakers from damage from too low loads so it shouldn't be a problem even if you screw up with your calculations. A good amp should even be capable of dealing with a dead short on a channel, zero ohms, activating protection of course.

Good luck and don't worry!

The VS3507 Is a class D monoblock.
Your optimum wiring for this amplifier is a 2 Ohm load - so it produces its full potential power of 350W RMS.

To Achieve a 2 ohm load, the most common load is one of the following...
(1) Dual 4 Ohm Voicecoil Subwoofer Wired in Parallel.
(2) 4 Ohm Voicecoil Subwoofers wired in Parallel.
(1) Quad 2 Ohm Voicecoil Subwoofer wired in Parallel/Series.
(1) Single 2 Ohm voicecoil subwoofer.

American Pro VS3507 2000W Car Audio Monoblock Amplifier
American Pro VS3507 Monoblock Amplifier Details

• Built-In Crossover
• Variable High/Low Pass Filters
• Phase Shift Control
• Subsonic Filter
• Bass Boost Control
• Dancing Lights at the Rhythm of Music
• Protection Circuits
• Gold Plated Terminals
• Power & Protection Circuit LED
• 1 x 250 Watts RMS @ 4 Ohms
• 1 x 350 Watts RMS @ 2 Ohms Thanks for using FixYa - A FixYa rating is appreciated!!

maybe it cannot accomodate too much power running on it...too much current, try another fuse with higher ampere rates

a kenwood 1800watt d class mono block cost ruffly $600

• It is capable of driving a 2 ohm load.
• It is a single channel amp, so bridging is not applicable. There are two speaker connections, true, but they are tied together internally.
• It's rated at 500W @ 2 ohms
• The issue you're going to have hooking up the subs you own is that you're not going to be able to optimize the output of the amp. If you hooked all of them up in parallel (both 15w0 as well as the dual voice coils of the 15w6), you'd be putting a 1.7 ohm load on the amp, which it may not like. In my mind, your best bet is to either put both 15w0's in parallel (125W per sub) and not use the 15w6.....OR.......use only the 15w6 with the dual voice coils in parallel (350W to the sub).