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Old 15th June 2008, 22:41   #1
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Question Which Amp for GZ RW 12 XD-AL Sub

Hey people

I have decided for the following sub

GROUND ZERO

GZRW 12 XD-AL
30 cm 500 watts, cast basket, 2 inch 2 x 4ohm, Alucone, woven in leads, Xmax 18mm, SPL 91,4dB

What i wanted to know is that

Is the following amplifier ok to be fitted with this sub without any problems ( low bass or distortions or disturbed bass)

JBL 301.1
  • 204 watts RMS x 1 channel at 4 ohms and ≤ 1% THD + N (BR>
  • 294 watts RMS x 1 channel at 2 ohms & 14.4V supply and ≤ 1% THD + N
  • Signal-to-Noise Ratio: 77 dBA (reference 1 watt into 4 ohms)
  • Dynamic Power: 320 watts at 2 ohms
  • Effective Damping Factor: 6.39 at 4 ohms
  • Frequency Response (3dB): 10Hz - 302Hz
  • Maximum Input Signal: 4.7V
  • Maximum Sensitivity: 220mV
  • Output Regulation: .098 dB at 4 ohms
  • Dimensions (W x H X D): 11-5/8" x 12-5/16" x 2-3/8"
Because My ICe with the 601.1 is going a bit out of budget so have to decide for it.


Please Gurus , Help Me out
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Old 15th June 2008, 22:46   #2
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Quote:
Originally Posted by abhinav.gupta88 View Post
..Xmax 18mm, SPL 91,4dB
if the sub is doing 91db/1w/1m it is pretty efficient. at 100W it will be 114db. I am sure this will be more than adequate.

Bass & Trouble represents GZ so it would make sense to PM him.
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Old 15th June 2008, 22:53   #3
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Navinji, how is this calculation done ?

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Originally Posted by navin View Post
if the sub is doing 91db/1w/1m it is pretty efficient. at 100W it will be 114db. I am sure this will be more than adequate.

Bass & Trouble represents GZ so it would make sense to PM him.
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Old 15th June 2008, 23:10   #4
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Quote:
Originally Posted by adityamunshi View Post
Navinji, how is this calculation done ?
for power it is 20 log P2/P1
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Old 15th June 2008, 23:36   #5
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Still not getting it, what do we substitute for p1 and p2 ?


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for power it is 20 log P2/P1

Last edited by adityamunshi : 15th June 2008 at 23:42.
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Old 16th June 2008, 10:12   #6
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depends; in this case it is 20 log 100(W)/1(w)
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Old 16th June 2008, 11:29   #7
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There are lots of amp in the market today what is your budget ?
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Old 16th June 2008, 11:52   #8
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Quote:
Originally Posted by abhinav.gupta88 View Post
Hey people

I have decided for the following sub

GROUND ZERO

GZRW 12 XD-AL
30 cm 500 watts, cast basket, 2 inch 2 x 4ohm, Alucone, woven in leads, Xmax 18mm, SPL 91,4dB

What i wanted to know is that

Is the following amplifier ok to be fitted with this sub without any problems ( low bass or distortions or disturbed bass)

JBL 301.1
  • 204 watts RMS x 1 channel at 4 ohms and ≤ 1% THD + N (BR>
  • 294 watts RMS x 1 channel at 2 ohms & 14.4V supply and ≤ 1% THD + N
  • Signal-to-Noise Ratio: 77 dBA (reference 1 watt into 4 ohms)
  • Dynamic Power: 320 watts at 2 ohms
  • Effective Damping Factor: 6.39 at 4 ohms
  • Frequency Response (3dB): 10Hz - 302Hz
  • Maximum Input Signal: 4.7V
  • Maximum Sensitivity: 220mV
  • Output Regulation: .098 dB at 4 ohms
  • Dimensions (W x H X D): 11-5/8" x 12-5/16" x 2-3/8"
Because My ICe with the 601.1 is going a bit out of budget so have to decide for it.


Please Gurus , Help Me out
I am using the same GZ 12XD-AL Sub x 2nos. powering up with a 2ohms stable Assembled amp Bridge mode on DVC mode,man its kicka$$ and very loud,i know if i plan to install a 2 x monoblock it can power up more.

As LBM described whats your budget as there are many amps available in the market to power up the subwoofer
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Old 16th June 2008, 12:18   #9
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See The amps Sub will be around 12000
the JBL 75.4, around 8k
illusion components 6490
so my budget now lies around 13500

the 601.1 is a bit higher priced than this.
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Old 16th June 2008, 12:18   #10
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the 75.4 will run the components etc while the 301.1/601.1 will power the sub
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Old 16th June 2008, 12:48   #11
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If you are planning to add only fronts then you can run the sub with a 75.4 only. No need to get another amp.
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Old 16th June 2008, 22:31   #12
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Well actually i was thinking to keep the front ones stock and replace the rear with components and run those along with the front and mids with the 75.4

So want to keep a seperate amp for the Sub
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Old 17th June 2008, 00:02   #13
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If you want to keep the front stock then run them through the HU. And wire the rears and the sub through the 75.4
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Old 17th June 2008, 11:23   #14
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Quote:
Originally Posted by low_bass_makker View Post
If you want to keep the front stock then run them through the HU. And wire the rears and the sub through the 75.4
Wont this push the imaging to the rear.
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Old 17th June 2008, 12:20   #15
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Quote:
Originally Posted by navin View Post
Wont this push the imaging to the rear.
Navin Ji he is powering 4 inch full range drivers from 75.4. Which will be over kill for a 4 inch driver thats why I recommended to run it thorough the HU
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