Hi,
I think we talked about this before, but a bunch of people said that better more power than less.
Anyways I am about to hook up another set of 6x9's here because i got my mmc690's by polk momo back and i really want to hear them play and i also have this usa2200 amp sitting here collecting dust, so my question is will this amp destroy these speakers on me or will it be ok?
The ratings are as follows for the equipment.
Polk Momo 6x9
3-way
1" silk tweeter and 1 1/4" silk tweeter
peak power handling: 300 watts
continuouspower handling: 100 watts
impedance nom.: 4 ohms
freq range: 33-25 khz
sensitivity 91 dB
these speakers came with there own crossover as well, that is mounted inside the speaker box
(one of the 1" silk tweeters is pushed in on the one speaker and it doesnt play full range sound i dont think but i want to still play these speakers)
USA 2200 by usa acoustics
output power: 200 watts X 2 at 12.9 V and 4 ohms
(doesnt say whether its rms or peak, assume rms i geuss)
THD: less than 0.01%
noise: 109 db
slew rate: 20 volts/microsecond
phase response: laggin 12 degrees at 20 kHz
input sensitivity: 100 mV - 2.2 Volt
input impedance: 17 Kilo Ohm
damping factor 100
protection: reverse pol, thermal, short circuit, d.c.
idle current: 1.0A
fuse rating: 40 A
weight 11 lbs.
The other question i have is if i wanted to add my 8" sub to the mix, the amp manual shows a way to hook a sub off the + right channel and - left channel and also run two regular full range speakers off each channel side. The only thing is that it says the sub cannot be less than 8 ohms and must utilize a low-pass, passive crossover. Is there anyway to hook up my 8" RF 4ohm SVC sub or should i just focus on the 6x9's with this amp?
Any help very benefitial before i do this.....
DKH
Replies (2)
swez on 07/19/2006 22:52:03
That amp equates to about 310 - 345 watts RMS bridged into a 4 ohm load. In two channel mode, more like 78 - 86 watts RMS x 2, depending on the power supply voltage the amp gets.
DO NOT USE the 8" driver in Tri-mode on this amp. It's too low a load and may damage your amp.
The Polks can handle this amp just fine. Just be sure to avoid excessive "clipping" of this amp so it won't damage your Polks. The taget voltage per channel to aim for,(4 ohms per channel) is about 17.5 VAC. That's the highest spike readings you should look for in dynamic mid/highs music or better still, use Pink noise to dial in your amp gains.
FYI: Set amp HPF between 80-100 Hz. This will block out bass frequencies that can really clip an amp and make the speakers work harder than needed.
Got all that?
Swez
dkh on 07/20/2006 00:14:26
I haven't taken the time yet to put that pink noise file onto a disc and use it to tune my speakers. My brother is getting married on saturday and i just have been so busy with alot of things that i totally forgot about this. Even though i have been fooling around with my 4-way amp settings to try and get them right, but its more like geuss work to me. I keep getting some distortion with certain songs after fiddling with them and then i redo it.
Can you point me in the right direction as far as procedure wise, and what to listen for with the pink noise dialing in of the amps?
I am sorry I have forgotten what to do. Is there a DIY procedure or anything that I can follow rather than retyping it in here where it will be not easily found for others looking for the same procedure?
Thanks
DKH
I think we talked about this before, but a bunch of people said that better more power than less.
Anyways I am about to hook up another set of 6x9's here because i got my mmc690's by polk momo back and i really want to hear them play and i also have this usa2200 amp sitting here collecting dust, so my question is will this amp destroy these speakers on me or will it be ok?
The ratings are as follows for the equipment.
Polk Momo 6x9
3-way
1" silk tweeter and 1 1/4" silk tweeter
peak power handling: 300 watts
continuouspower handling: 100 watts
impedance nom.: 4 ohms
freq range: 33-25 khz
sensitivity 91 dB
these speakers came with there own crossover as well, that is mounted inside the speaker box
(one of the 1" silk tweeters is pushed in on the one speaker and it doesnt play full range sound i dont think but i want to still play these speakers)
USA 2200 by usa acoustics
output power: 200 watts X 2 at 12.9 V and 4 ohms
(doesnt say whether its rms or peak, assume rms i geuss)
THD: less than 0.01%
noise: 109 db
slew rate: 20 volts/microsecond
phase response: laggin 12 degrees at 20 kHz
input sensitivity: 100 mV - 2.2 Volt
input impedance: 17 Kilo Ohm
damping factor 100
protection: reverse pol, thermal, short circuit, d.c.
idle current: 1.0A
fuse rating: 40 A
weight 11 lbs.
The other question i have is if i wanted to add my 8" sub to the mix, the amp manual shows a way to hook a sub off the + right channel and - left channel and also run two regular full range speakers off each channel side. The only thing is that it says the sub cannot be less than 8 ohms and must utilize a low-pass, passive crossover. Is there anyway to hook up my 8" RF 4ohm SVC sub or should i just focus on the 6x9's with this amp?
Any help very benefitial before i do this.....
DKH
Replies (2)
swez on 07/19/2006 22:52:03
That amp equates to about 310 - 345 watts RMS bridged into a 4 ohm load. In two channel mode, more like 78 - 86 watts RMS x 2, depending on the power supply voltage the amp gets.
DO NOT USE the 8" driver in Tri-mode on this amp. It's too low a load and may damage your amp.
The Polks can handle this amp just fine. Just be sure to avoid excessive "clipping" of this amp so it won't damage your Polks. The taget voltage per channel to aim for,(4 ohms per channel) is about 17.5 VAC. That's the highest spike readings you should look for in dynamic mid/highs music or better still, use Pink noise to dial in your amp gains.
FYI: Set amp HPF between 80-100 Hz. This will block out bass frequencies that can really clip an amp and make the speakers work harder than needed.
Got all that?
Swez
dkh on 07/20/2006 00:14:26
I haven't taken the time yet to put that pink noise file onto a disc and use it to tune my speakers. My brother is getting married on saturday and i just have been so busy with alot of things that i totally forgot about this. Even though i have been fooling around with my 4-way amp settings to try and get them right, but its more like geuss work to me. I keep getting some distortion with certain songs after fiddling with them and then i redo it.
Can you point me in the right direction as far as procedure wise, and what to listen for with the pink noise dialing in of the amps?
I am sorry I have forgotten what to do. Is there a DIY procedure or anything that I can follow rather than retyping it in here where it will be not easily found for others looking for the same procedure?
Thanks
DKH
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