Acid X
01-10-2006, 03:55 AM
Alright, right now i have a Tsunami 4 channel amplifier running off of no-name wires and a Pioneer DEH-P6700MP headunit. The amplifier is only powering my two MTX Thunder 4510-44 Dual 4 Ohm Voice Coil woofers rated at 225 watts RMS. They're run off of the first two channels on the amp bridged together, and i have the subwoofers in series and paralleled to run at 8ohms. The amplifier is seeing a 4 ohm load with both of them running off of the bridged channels.
Bridged, at 4 ohms, the amp puts out 280W x 2, so each sub woofer is seeing 140 watts. This is the optimal way of hooking these subs up to this amp, because i don't believe it's 2 ohms stable bridged, though i can't be sure, but i dont want to risk ruining my only amp at the moment.
Anyway, seeing as these subwoofers are rated at 225 watts rms each, i don't think this amp is doing them justice. I want to upgrade to something not so powerful as to blow the subs, but im pretty sure (considering its MTX) that they can handle up to 300rms easily.. So i've been searching for the best 600watt amp i could find for the price. So i've come upon this:
Power Acoustik LT980/2 (http://www.poweracoustik.com/LTSeries.html)
I've read alot of reviews across the web and most of the time this amp gets some pretty good ratings.. Its only 560 watts bridged (RMS), but im not planning to bridge it. What i want to do is open my subs up to their full potential by wiring them up the way they should be. I'm going to plop one sub on each channel, with the two voice coils going straight through to the amplifier. This will make the amp see a 2 ohm load on each channel, and will put out 280 watts to each sub. Not putting too much more power into it.. right?
I was planning on using my old amplifier to power my speakers since its a 4 channel, rated at 70 x 4 @ 4 ohms. Should sound pretty good!
Now for my dilemma. My head unit unfortunately only has TWO pre-amp outputs. Front and Rear/SW... This serves me a problem, obviously. So what i have come up with is this; I plan to run the two pre-amps to the Tsunami 4 channel amp functioning as normal channels, front and rear, not front and SW. I was then planning on using an interconnect to connect the output from the amp to the input on the second, Power Acoustik 2ch amp, and tuning the 2 channel amp for lows as normal.
My only disadvantage to this is that i now cant adjust the subwoofer bass from the head-unit, and the new amp doesnt come with an external bass adjustment. Do you think this will work?
Also, i wanted an opinion on the stuff i am going to purchase... Please note im not going for extremely cheap, just affordable in my case. Here's what i plan to get:
Stinger SWT12BLU PRO Series Car Audio Blue 12 Gauge Speaker Wire (http://www.hifisoundconnection.com/Shop/Control/fp/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236233244245/vpid/1333959/vpcsid/0/SFV/30046/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236235230235) ~50 feet so i can have extra if i need it later [$16.90]
Stinger SHR1.5 Hyper Series Car Audio Interconnect RCA Cable 1.5' (http://www.hifisoundconnection.com/Shop/Control/fp/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236233244245/vpid/1333085/vpcsid/0/SFV/30046/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236235230235) For amp-to-amp connection [$6.50]
Stinger SHR417 Hyper Series Car Audio Interconnect 4 Channel RCA Cable 17' (http://www.hifisoundconnection.com/Shop/Control/fp/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236233244245/vpid/1333092/vpcsid/0/SFV/30046/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236235230235) For head-unit to 4ch [$23.00]
Power Acoustik LT980-2 Car Audio 2 Channel Sub Speaker Amp Amplifier (http://www.hifisoundconnection.com/Shop/Control/fp/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236233244245/vpid/1600129/vpcsid/0/SFV/30046/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236235230235) 2 channel amp [$99.00]
Stinger SWK4D Pro Series 4 Gauge Car Audio Red Amp Kit (http://www.hifisoundconnection.com/Shop/Control/fp/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236233244245/vpid/1333935/vpcsid/0/SFV/30046/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236235230235) Obiously for the amps' power souce [$54.75]
And then i made a little diagram, too: :P
http://img297.imageshack.us/img297/6158/ampsetupsketch0zh.jpg
Red = Power, Black = Ground, Blue = Distributor Block, Green = Head-unit to 4ch interconnects, Orange = 4ch to 2ch interconnect, Yellow = Speaker wires
Sorry for the long post. :)
Bridged, at 4 ohms, the amp puts out 280W x 2, so each sub woofer is seeing 140 watts. This is the optimal way of hooking these subs up to this amp, because i don't believe it's 2 ohms stable bridged, though i can't be sure, but i dont want to risk ruining my only amp at the moment.
Anyway, seeing as these subwoofers are rated at 225 watts rms each, i don't think this amp is doing them justice. I want to upgrade to something not so powerful as to blow the subs, but im pretty sure (considering its MTX) that they can handle up to 300rms easily.. So i've been searching for the best 600watt amp i could find for the price. So i've come upon this:
Power Acoustik LT980/2 (http://www.poweracoustik.com/LTSeries.html)
I've read alot of reviews across the web and most of the time this amp gets some pretty good ratings.. Its only 560 watts bridged (RMS), but im not planning to bridge it. What i want to do is open my subs up to their full potential by wiring them up the way they should be. I'm going to plop one sub on each channel, with the two voice coils going straight through to the amplifier. This will make the amp see a 2 ohm load on each channel, and will put out 280 watts to each sub. Not putting too much more power into it.. right?
I was planning on using my old amplifier to power my speakers since its a 4 channel, rated at 70 x 4 @ 4 ohms. Should sound pretty good!
Now for my dilemma. My head unit unfortunately only has TWO pre-amp outputs. Front and Rear/SW... This serves me a problem, obviously. So what i have come up with is this; I plan to run the two pre-amps to the Tsunami 4 channel amp functioning as normal channels, front and rear, not front and SW. I was then planning on using an interconnect to connect the output from the amp to the input on the second, Power Acoustik 2ch amp, and tuning the 2 channel amp for lows as normal.
My only disadvantage to this is that i now cant adjust the subwoofer bass from the head-unit, and the new amp doesnt come with an external bass adjustment. Do you think this will work?
Also, i wanted an opinion on the stuff i am going to purchase... Please note im not going for extremely cheap, just affordable in my case. Here's what i plan to get:
Stinger SWT12BLU PRO Series Car Audio Blue 12 Gauge Speaker Wire (http://www.hifisoundconnection.com/Shop/Control/fp/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236233244245/vpid/1333959/vpcsid/0/SFV/30046/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236235230235) ~50 feet so i can have extra if i need it later [$16.90]
Stinger SHR1.5 Hyper Series Car Audio Interconnect RCA Cable 1.5' (http://www.hifisoundconnection.com/Shop/Control/fp/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236233244245/vpid/1333085/vpcsid/0/SFV/30046/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236235230235) For amp-to-amp connection [$6.50]
Stinger SHR417 Hyper Series Car Audio Interconnect 4 Channel RCA Cable 17' (http://www.hifisoundconnection.com/Shop/Control/fp/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236233244245/vpid/1333092/vpcsid/0/SFV/30046/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236235230235) For head-unit to 4ch [$23.00]
Power Acoustik LT980-2 Car Audio 2 Channel Sub Speaker Amp Amplifier (http://www.hifisoundconnection.com/Shop/Control/fp/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236233244245/vpid/1600129/vpcsid/0/SFV/30046/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236235230235) 2 channel amp [$99.00]
Stinger SWK4D Pro Series 4 Gauge Car Audio Red Amp Kit (http://www.hifisoundconnection.com/Shop/Control/fp/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236233244245/vpid/1333935/vpcsid/0/SFV/30046/sret/16112161314213220281220221282215214223286229220289 232229294231226229242233242243236235230235) Obiously for the amps' power souce [$54.75]
And then i made a little diagram, too: :P
http://img297.imageshack.us/img297/6158/ampsetupsketch0zh.jpg
Red = Power, Black = Ground, Blue = Distributor Block, Green = Head-unit to 4ch interconnects, Orange = 4ch to 2ch interconnect, Yellow = Speaker wires
Sorry for the long post. :)