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Author Topic: SRX715/728 and itechs  (Read 1207 times)

Brian Hancock

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Re: SRX715/728 and itechs
« Reply #10 on: July 01, 2019, 12:55:11 pm »

A step up in the same line would be the g28 or s28 ... if I remember correctly you would want a 12k or 4x3500 to supply enough power for them ... may want to look at the new b18 as a scalable option ... I mention these specifically because you have already invested in the Harman family with crown and jbl ... not many would turn down those subs in appropriate counts
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John Penkala

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Re: SRX715/728 and itechs
« Reply #11 on: July 01, 2019, 01:36:07 pm »

A step up in the same line would be the g28 or s28 ... if I remember correctly you would want a 12k or 4x3500 to supply enough power for them ... may want to look at the new b18 as a scalable option ... I mention these specifically because you have already invested in the Harman family with crown and jbl ... not many would turn down those subs in appropriate counts

Don't forget the JBL S25. The amount of output this little sub has is astounding.
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Tim McCulloch

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Re: SRX715/728 and itechs
« Reply #12 on: July 01, 2019, 02:49:57 pm »

No no. Im asking out of curiosity.  There must be a step up, or it wouldnt have been suggested.  Just wondering what that step up is.

SRX728 - calculated peak output of 136dB. 165lbs, about 19cuft external.  Released 2004, it's still a viable sub.  It was a solid product with a good $:dB ratio.  But did I mention 2004?  A lot has happened since then; most recently:

VTX B18.  I heard them at the VTX "A8" demo and was impressed.  *Measured* peak output of 135dB, half space, presumably at the 38Hz shown in the acoustic response graph.  150lbs. 11 cuft.  A pair of B18 each on its own amp channel would be easy to move and be at least +5dB over the SRX728, but weigh 145 lbs more and take another 5-6 cuft in the truck.

The G28 is an impressive sub.  Measured peak output of 144dB.  Just over 200 lbs, about 30 cuft.  Requires 2 amp channels as each woofer is separately driven.  A second G26 may be jumped.

This is the 3db$ thing we talk about occasionally...

Other folks can comment about other brands, but I'm sure there are similarities in the size/weight/output/price matrix.
« Last Edit: July 01, 2019, 02:53:41 pm by Tim McCulloch »
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John Penkala

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Re: SRX715/728 and itechs
« Reply #13 on: July 01, 2019, 03:04:16 pm »

SRX728 - calculated peak output of 136dB. 165lbs, about 19cuft external.  Released 2004, it's still a viable sub.  It was a solid product with a good $:dB ratio.  But did I mention 2004?  A lot has happened since then; most recently:

VTX B18.  I heard them at the VTX "A8" demo and was impressed.  *Measured* peak output of 135dB, half space, presumably at the 38Hz shown in the acoustic response graph.  150lbs. 11 cuft.  A pair of B18 each on its own amp channel would be easy to move and be at least +5dB over the SRX728, but weigh 145 lbs more and take another 5-6 cuft in the truck.

The G28 is an impressive sub.  Measured peak output of 144dB.  Just over 200 lbs, about 30 cuft.  Requires 2 amp channels as each woofer is separately driven.  A second G26 may be jumped.

This is the 3db$ thing we talk about occasionally...

Other folks can comment about other brands, but I'm sure there are similarities in the size/weight/output/price matrix.



+1

FWIW- The S25 also has a measured peak output of 144db  but weighs only 136 lbs and is less than half the size of the G28.
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Re: SRX715/728 and itechs
« Reply #13 on: July 01, 2019, 03:04:16 pm »


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