which amp is better?
03-31-2005, 10:38 PM
#1
0 Watt CAFz'r
Thread Starter
Join Date: Jan 2005
Posts: 25
i plan to run 2 10" Infinit 1030w subs
specs:
Recommended power range 50-250 watts RMS
Peak power handling 1,000 watts
Frequency response 25-400 Hz
Sensitivity 88 dB
Impedience: 4ohm
which amp would be the better to get the best of the 2 subs?
KENWOOD KAC-929 1000W 2-CHANNEL AMPLIFIER:
Number of Channels : 2
Power (Watts RMS into 4 ohms x Channels) : 150 x 2
Power (Watts RMS into 2 ohms x Channels) : 230 x 2
Bridged power x channels (4 ohms) : 460 x 1
Peak power x Channels (watts) : 500 x 2
Signal to Noise Ratio (dB) : 100dB
Distortion (THD%) at Rated Power : .08%
Bridgeable? : Yes
2 ohm stable
or
Kenwood KAC-8101D (mono, class D)
Maximum Output Power: 1000 Watts
Power Output at 2 Ohms, at 14.4V (100Hz, 0.5% THD): 400 RMS Watts x 1
Power Output at 4 Ohms, at 14.4V (20Hz - 200Hz, 0.5% THD): 200 RMS Watts x 1
or neither one? which other would you prefer, but not too expensive (I know infinity 610A would be the best, but can't find it used : 456 watts RMS x 1 channel at 4 ohms a 657 watts RMS x 1 channel at 2 ohms)
specs:
Recommended power range 50-250 watts RMS
Peak power handling 1,000 watts
Frequency response 25-400 Hz
Sensitivity 88 dB
Impedience: 4ohm
which amp would be the better to get the best of the 2 subs?
KENWOOD KAC-929 1000W 2-CHANNEL AMPLIFIER:
Number of Channels : 2
Power (Watts RMS into 4 ohms x Channels) : 150 x 2
Power (Watts RMS into 2 ohms x Channels) : 230 x 2
Bridged power x channels (4 ohms) : 460 x 1
Peak power x Channels (watts) : 500 x 2
Signal to Noise Ratio (dB) : 100dB
Distortion (THD%) at Rated Power : .08%
Bridgeable? : Yes
2 ohm stable
or
Kenwood KAC-8101D (mono, class D)
Maximum Output Power: 1000 Watts
Power Output at 2 Ohms, at 14.4V (100Hz, 0.5% THD): 400 RMS Watts x 1
Power Output at 4 Ohms, at 14.4V (20Hz - 200Hz, 0.5% THD): 200 RMS Watts x 1
or neither one? which other would you prefer, but not too expensive (I know infinity 610A would be the best, but can't find it used : 456 watts RMS x 1 channel at 4 ohms a 657 watts RMS x 1 channel at 2 ohms)
03-31-2005, 10:53 PM
#2
0 Watt CAFz'r
Thread Starter
Join Date: Jan 2005
Posts: 25
or perhaps Pioneer GM-D510M
Peak Music Power 1000 Watts
Number of Channels 1
Load Impedance Capability 2 ~ 8 Ohm (Mono)
Continuous Power (4 ohm) 300W x 1
Continuous Power (2 ohm) 600W x 1
Continuous Power Bridged (4 ohm) N/A
Frequency Response 20 ~ 240Hz
Total Harmonic Distortion 0.03%
Signal-to-Noise Ratio 100dB
if I run parallel connection with the 2 subs, is (2 ohm) 600W x 1 enough?
Peak Music Power 1000 Watts
Number of Channels 1
Load Impedance Capability 2 ~ 8 Ohm (Mono)
Continuous Power (4 ohm) 300W x 1
Continuous Power (2 ohm) 600W x 1
Continuous Power Bridged (4 ohm) N/A
Frequency Response 20 ~ 240Hz
Total Harmonic Distortion 0.03%
Signal-to-Noise Ratio 100dB
if I run parallel connection with the 2 subs, is (2 ohm) 600W x 1 enough?
03-31-2005, 11:00 PM
#3
I personally would not choose any of the above.
Of the 3 amps you have listed I would choose the Pioneer GM-D510M.
The KAC-8101D looks like you will only receive about 400 watts at 2 ohms....Is the KAC929 even 2 ohm mono stable.
According to the Pioneer website, the GM-D510M is only 67% efficient....quite low for a class D.... Rockford has class AB amps that are as efficient.
[ April 01, 2005, 12:01 AM: Message edited by: loudtdi ]
Of the 3 amps you have listed I would choose the Pioneer GM-D510M.
The KAC-8101D looks like you will only receive about 400 watts at 2 ohms....Is the KAC929 even 2 ohm mono stable.
According to the Pioneer website, the GM-D510M is only 67% efficient....quite low for a class D.... Rockford has class AB amps that are as efficient.
[ April 01, 2005, 12:01 AM: Message edited by: loudtdi ]
04-01-2005, 07:35 AM
#5
Theres a orion hcca 225 in the usell classifieds right now for 125.00
Keep looking ,you can find some great deals in the used department for audio.
I bought my kx 1200.1 for 400 bucks,sells for aboot 1200 new...
Keep looking ,you can find some great deals in the used department for audio.
I bought my kx 1200.1 for 400 bucks,sells for aboot 1200 new...
04-01-2005, 07:37 AM
#6
Haunz,
You are a true sceptic!
There are Rockford class AB amps that efficient...I see them almost daily.
Rockford has patented transistor to heat-sink mounting technology that allows the amps to run more efficiently. Its called MEHSA.....I'll look for a white paper and e-mail it to you.
You are a true sceptic!
There are Rockford class AB amps that efficient...I see them almost daily.
Rockford has patented transistor to heat-sink mounting technology that allows the amps to run more efficiently. Its called MEHSA.....I'll look for a white paper and e-mail it to you.
04-01-2005, 10:14 AM
#7
0 Watt CAFz'r
Thread Starter
Join Date: Jan 2005
Posts: 25
i thought none of these would do it!
as much as I know, my best bet is to run paralllel connection to a mono amp (2 ohm stable of course)
so when i look to run a connection like this, what rms do I look at to be 500watts (since each sub is 250), do I look for rms at 2 ohms x 1 channel or rms at 4ohm x 1 channel....
since the subs are 4 ohms, so i'm not quite what to look for! and same goes for a 2 chanel amp, if I were to run 1 sub to each channel (do i look for 2 ohm rms per channel, or 4 ohm rms/channel)
this is were i'm confused
as much as I know, my best bet is to run paralllel connection to a mono amp (2 ohm stable of course)
so when i look to run a connection like this, what rms do I look at to be 500watts (since each sub is 250), do I look for rms at 2 ohms x 1 channel or rms at 4ohm x 1 channel....
since the subs are 4 ohms, so i'm not quite what to look for! and same goes for a 2 chanel amp, if I were to run 1 sub to each channel (do i look for 2 ohm rms per channel, or 4 ohm rms/channel)
this is were i'm confused
04-01-2005, 10:57 AM
#8
500 Watt CAFz'r
Join Date: May 2004
Posts: 597
^^^^^^^^^Yes, if you parallel your 4 ohm single voice coil subwoofers, you can achieve a 2 ohm mono load to the amplifier.
Therefore, the power specification you are looking for would be the 2 ohm x 1 channel RMS power rating. For the GM-D510M that would be 500 watts RMS (perfect for the power ratings of your Infinity subwoofers).
Good luck!
Therefore, the power specification you are looking for would be the 2 ohm x 1 channel RMS power rating. For the GM-D510M that would be 500 watts RMS (perfect for the power ratings of your Infinity subwoofers).
Good luck!
04-01-2005, 12:42 PM
#9
MEHSA - Maximum Effeciency Heatsink Application. The outputs are mounted properly (as in not bolted)to a strip of aluminum and then the strip is mounted properly to the heatsink. Basically, a heatsink inside of a heatsink and it does a good job for it's intended purpose. I too have seem class A/B amps from Rockford that are above 66%.
[ April 01, 2005, 10:17 PM: Message edited by: MR2NR ]
[ April 01, 2005, 10:17 PM: Message edited by: MR2NR ]
