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dakos

Member Since 05 Sep 2011
Offline Last Active Today, 11:43 AM
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Posts I've Made

In Topic: Best Amp for JBL SRX218S Subs - Please help

23 November 2014 - 04:03 PM

Well, the short answer is yes. The longer one is that it's not only the number of watts that you need to power these speakers properly but also the great limiters the i-Tech series have and other processing capabilities integrated into it. It's a real work horse.

If you still want to use XTi's then it's possible but not as good. One i-Tech 8000 will handle two SRX218s properly. As it's highly recommended to avoid 4 ohm bridge or 2 ohm stereo operation, to match the preformance of one i-Tech 8000 you need to use 4 X XTi 4002, each bridged into one of the 18" subs.

You can use the XTi 6002 for both SRX218s as a cheaper solution but you're won't be powering them optimally.
Avi

In Topic: Amp to much for my tweeters?

23 November 2014 - 12:28 AM

Hello John,
Need some more information... What subs and what tweeters do you have? How are they currently connected? How many of each?

Just a tiny bit of advice, using the phones jack as your signal source isn't the best choice, you need to get your signal from the preamp section on the back of your receiver.

Please answer those questions so we may answer your questions better.
Avi

In Topic: Best Amp for JBL SRX218S Subs - Please help

23 November 2014 - 12:21 AM

I don't know if buying used is an option for you but the clear choice for powering your subs and not pushing your budget up is a used i-Tech 8000.

Let me know...
Avi

In Topic: Confirmation for a Slow Learner

10 November 2014 - 11:10 PM

Hello,
A few things first... I need to know what type of space you're building this rig for? What type of music and for how many people?

You are almost correct in your calculations, it's 2.33 ohms and not 1.33 but the rest is correct.

Just a few quick pointers, there's no sense putting both the 115 and the 415 in the same space. You'll just end up with less quality then any by operating just one of them.

Group all the subs that you're actually powering together.

Short all the speakers and subs that you don't power and put them far from the sub stack or they will gobble your low end.

Either the DRPA+ or the 223 are not needed.
Avi

In Topic: Need help with connecting Crown XTi 4000 with JBL VRX 900 and subs

03 November 2014 - 05:43 AM

You need one amp channel per frequency range so I don't see how you'll be able to accomplish this using 4 pole connectors, Also I have seen many mistakes done creating those "special" cables, that just complicates things. One more reason to go with the plain solution is redundancy, if you use plain speaker cables and something gets messed up (it always does when you least expect it), all you need to do is grab the regular spare cable you will prepare for those events and replace the faulty cable because they are all the same.

All amps get the full range signal from the console. Every DSP cuts the frequency as needed by the speakers connected to it. The only signal that gets summed is in the subwoofer amp. you should first try to group all the subs in one place, don't separate them to left and right channels, that separation is only good for the top speakers.
Avi