Whats a MTX 81000D worth?

[GAM3OVR 5,000+ posts]

Nowadays, Whats a good condition one go for?

just curios. Can't seem to find anything on it besides prices from like 2003-2001.

I know some people say they can go down to 1 ohm???

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[thevic24 5,000+ posts]

to run one at 1ohm, you need to remove the protection chip from the board. this will disable all the protection, short, thermal, etc.

i sold one about 5 months ago for $250 that had the mod. so i would say atleast $200 for one in good condition imo.

 

[GAM3OVR 5,000+ posts]

is there a tutorial of how to remove that protection chip?

 

[thevic24 5,000+ posts]

i rember seeing one somewhere but dont rember. i know it involves un soldering the chip and that was all that needed to be done. the one i sold had been fried and i sent it to a place called landis tech. they replaced the board and did the "mod" for me. if i rember right, the new birth sheet they sent back with the amp had it at a tick over 1500w at 1ohm and 12.5v. that amp ran quite hot but never gave me any problems.

i still have one that i bought new about 6 years ago thats not moded, its running a dd 1508 now but soon will have a dd2510 to beat on.

imo very good amps.

 

[GAM3OVR 5,000+ posts]

Frankly I heard they do about 1700 RMS @ 2 ohm @ 14.4 Volt as it is.

Which is @ 83-86% efficiency //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[thevic24 5,000+ posts]

the one i have now, its birth sheet says 1350w rms at 2 ohms at 12.5v. they advertise 1500w rms at 14.5v so i could see that.

the moded amp i had pushed 2 12w6v2's with ease at 1ohm.

 

[1ndatrunk 10+ year member]

The tutorial is on ROE. They will run at 1ohm without the mod though, you just better have a **** good electrical. I've had 2 81000, 2of the first 1501s and a 1000. They all were run @1ohm for most of the time I had them with no mods. We all know that a 1ohm load after imp rise will be at least a 1.3-1.4 most of the time, so a daily system will be fine on this amp

 

[GAM3OVR 5,000+ posts]

Got a link?

 

[NightDrifter05 10+ year member]

http://www.realmofexcursion.com/forum/showthread.php?t=739

And as stated they go for around 200-250 depending on condition.

 

[GAM3OVR 5,000+ posts]

Okay so, if this mod is done, the amp will never go into protect???

 

[thevic24 5,000+ posts]

Okay so, if this mod is done, the amp will never go into protect???

no, that chip that is removed is the protection