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» Termpro Audio Forum » Component Specific Topics » Amplifiers » mtx 8100d good for 1.5 ohms?

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Author Topic: mtx 8100d good for 1.5 ohms?
Beebs
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Just throwing some ideas together, and I need to know if the 8100d can run at 1.5 ohms.

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Infiniti Qx4:
Pioneer P930 H/U, Epic150, MTX8100d, 2 Alpine TypeR 12 SVC's with 1.28cuft tuned to 31hz, JL XR6.5 components (JL 300/4)/VR6 Coaxials (Other half of 300/4) F/R, 1 Farad Stinger HPM Cap, 2 Optima Red-Tops (Soon to be 3), 0/1 Gauge Stinger Wire, All Stinger HPM Fuses and Fuseholders, Cold Air Intake, HKSuv Sport Exhaust, Ignition System

148db's at 45hz...
Posts: 239 | From: Mobile, Alabama | Registered: Mar 2001  |  IP: Logged | Report this post to a Moderator
Beebs
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Infiniti Qx4:
Pioneer P930 H/U, Epic150, MTX8100d, 2 Alpine TypeR 12 SVC's with 1.28cuft tuned to 31hz, JL XR6.5 components (JL 300/4)/VR6 Coaxials (Other half of 300/4) F/R, 1 Farad Stinger HPM Cap, 2 Optima Red-Tops (Soon to be 3), 0/1 Gauge Stinger Wire, All Stinger HPM Fuses and Fuseholders, Cold Air Intake, HKSuv Sport Exhaust, Ignition System

148db's at 45hz...
Posts: 239 | From: Mobile, Alabama | Registered: Mar 2001  |  IP: Logged | Report this post to a Moderator
fourbanger
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I ran one @ 1.4 for a long time. Some people say they don't anything below 2 ohm though, so I don't know

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Posts: 1405 | From: tulsa, ok | Registered: Jun 2001  |  IP: Logged | Report this post to a Moderator
Bumpin' Yota
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Yes, it will handle it. It relates to the back emf generated by a playing sub increasing its actual impeadance.

Incedentially, I have my 81000d pushing 1ohm right now with a 14.4v supply, and if Im not paying attention, it makes my two 8" subs beat the hell out of their back plates.
steve

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Posts: 4518 | From: Land Lord of Iggy's Head Apart Complex Tower #2 | Registered: Jan 2000  |  IP: Logged | Report this post to a Moderator
joeyjetsfan
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Yeah, yeah...this is old, but I need to know if it is still relevant. Can I push a dual .7 ohm subwoofer with each of my 8100D's? I don't know how to figure for impedance rise, but I'd be very careful when burping (comps only).
Posts: 494 | From: So Cal | Registered: Jul 2000  |  IP: Logged | Report this post to a Moderator
MR.T3
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Only 1 way to find out! [Big Grin]

If they have protection in them....I doubt it.

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Johnathan Demuth- President
T3 Audio Technologies L.L.C.

"I don’t know what the key to success is, but the key to failure is trying to please everyone."

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Posts: 6910 | From: T3 Audio Incorporated | Registered: Jul 2001  |  IP: Logged | Report this post to a Moderator
joeyjetsfan
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I talked to Lee at MTX this morning and he assured me there is no protection built-in the amp. He was very iffy about me running dual .7 ohm coils though. Why does noone have dual one ohm Extremes?
Posts: 494 | From: So Cal | Registered: Jul 2000  |  IP: Logged | Report this post to a Moderator
GOLDBERG
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running the 81000D on dual .7ohm coils(1.4ohm nominal load) is no problem at all..just make sure u have enough power,...thats a perfect load IMO...max power, while retaining reliability...and you dont even have too worry cause it prolly wont see 1.5ohm anyways, but if it does there wont be a problem as long as u got the power too back up its demands [Cool]

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Posts: 2635 | From: hilo, HI | Registered: May 2001  |  IP: Logged | Report this post to a Moderator
   

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