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Discussion Starter #1 (Edited)
Will it be stable at 1 ohm? is the real question


I am about to order two pioneer champion series ts-w309d4 dual 4 ohm voice coil subs and have been looking for a reasonably priced amp, inevitably lanzar popped up. I've done a few installs for friends and occasionally they purchase a lanzar only for me to look it up and find that its of course not as powerful as it seems to advertise. I consider myself fairly knowledgeable on the basics of car audio and have run across a particular lanzar (htg2100d).

So I plan on wiring the two pioneers at 1 ohm and am looking for a D class monoblock that will handle the 800w rms at 1 ohm.

My main question is if this amp is even close to its advertised power. It seems unlikely to me that a lanzar would handle 800w rms at 1 ohm, and 2400w peak at 1 ohm ...now I don't know how but I do know there is a way to get a good estimate of power from the fuse ratings..maybe somebody can help me out here. If not I would take any recommendations for another amp, keep in mind I'm on a budget of around $150. Any help will be appreciated

Lanzar htg2100d specs:

1 x 350W RMS at 4 OHMS
1 x 550W RMS at 2 OHMS
1 x 800W RMS at 1 OHMS
1 x 2400W Max at 1 OHMS
Electronic Crossover Network
Bass Boost Circuit
Bridgeable at 4 Ohms
2 Ohm Stereo Stable
Gold RCA Inputs
Line Outs for Left and Right Channel
Low Pass Filter Controls
Power and Protection LED Indicators
Soft Turn-on/Turn-off
THD: <0.01%.
S/N Ratio: >90dB
Channel Separation: >65dB
Freq. Response: 10Hz~45KHz
HPF Freq. Response: 80KHz
LPF Freq. Response: 50Hz-250Hz
Subwoofer Remote Level Control
Fuse: 40A x 2
Dimensions: 14.96''(L) x 2.24''(H) x 8.81''(W)


Pioneer ts-w309d4 specs:

12" Dual 4 ohm Champion Series Subwoofer
Power Handling:

Peak: 1,400 watts
RMS: 400 watts

Impedance: Dual 4 ohm
Seamless Injection Molded Polypropylene (IMPP) composite cone
Dual layer, fiber reinforced elastic polymer surround
Large spring loaded, push style binding posts
High temperature voice coil
Large double stacked high energy magnets
Designed for sealed, ported, or bandpass enclosures
Recommended enclosure volume:

Sealed: 1.25 cu. ft
Ported: 1.5 cu. ft
Bandpass: 0.9 cu. ft in front / 0.9 cu. ft in rear

Frequency response: 20-220 Hz
Sensitivity: 94 d
 

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Used MTX,ROCKFORD,JL,Memphis,Alpine etc....
Anything but fleemarket amps.
You can pick up a used memphis 1000d for $150.Not that thats my amp of choice but itsa way better way to spend $150
 

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JL 500/1 go for around $150
 

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Discussion Starter #8
rms doesnt come close to what im looking for, i was thinking a class d monoblock with 800 rms at 1 ohm
 

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Are you sure you need 800 wrms? The difference between 500 and 800 watts is less than three decibels when running at full tilt.

Not only that, a decent brand name amp with less power will be better than a lesser quality one claiming an unrealistic high power rating.
 

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Just yesterday I blew my INFINITY KAPPA PERFECT12'S That are rated 350 rms and 1400 peak each with my JL 500/1 with amp gains at about 20%
Try an MTX TA7801 They sell used in the same price range.
 
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