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Sidhu

Member Since 09 Nov 2012
Offline Last Active Apr 06 2013 12:50 PM
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Topics I've Started

STX825 HF driver blowing continuosly.

30 March 2013 - 12:56 PM

Hello!

I have been hearing a lot of local reports of the HF driver with the 825 blowing themselves out even on moderate level operation. I always tend not to pay much heed to such reports.

We were contracted to provide SR and engineering services for a small festival in the hills, and I really liked how the 825 sounded when i demoed them, so decided to spec the same for the festival. We don't have any 835's around, and I have an eye on them. The venue does not really more a pair in all, we sent in a pair a side, to be safe.

I made presets for the ITech amplifiers, copied eq setting off the XTI, tansfer compared them with the HD presets, and it sounded great!

To be cautious, I setup a system architect custom panel to monitor all inputs and outputs, and GR meters. the RMS and Peak limiters are set to 1/3 of continuous power, and 3/4th of program power respectively.

My partner is now in the hills engineering, last night, midway, he was very impressed with te rig. Loud and hi-fi, without him hitting a single clip or getting the GR into action. However,
During the last act, he reports one HF driver has gone down.

As of midway today, 2nd and last day, he has lost two more HF drivers, and is now happily running the show of just 1 HF, loud enough to cover the small area. He hopefully will manage though the last act. We have taken some 712's off monitor duty as an SOS.

System :

4 x STX825
2 x ITech 4000
4 x SRX728
2 x ITech 6000

Any ideas ?

Thank you for the time.

Regards,
Sidhu

JBL STX amplification and DSP

05 March 2013 - 01:22 PM

Hello again!

We are almost certain of investing in an STX rig.

Currently looking at.

STX825 or the STX835
Powered with either the MA5000i or the Xti6002.


STX828
Powered using either the MA9000i or Xti6K bridged.

First, are these amps appropriate? We already use the Xti2002 in Bridged mode with an MRX528, and find that it clips before reaching the -10db mark. Current limiting I would presume.

Second, we find ourselves in a situation where the presets (which I like) for the STX series are only available for the Xti, or the ITech Hd (which we cannot afford).

Also considering using the Xti for the tops and the MA9000i for the subs, but then that would need us to use something to align the speakers cause of the latency, and a DSP for the subs ?

Kindly advise on the best way to go about this without having to invest in the ITech Hd.

Thanks and regards,
Sidhu

STX825/835 ratings. 1200/2400/4800
STX828 ratings. 2000/4000/8000




SRX. BW vs. LR.

16 January 2013 - 01:54 PM

Hello! Almost all DSp setting I have seen for the SRX728/725 deploy the LR48 filters. However, the presets available for the XTi2 series of amps, deploy the BW filter. What difference would there be ? Regards, Sidhu

1st time online. Assigning amps.

30 November 2012 - 06:18 AM

Hello!

Im a little unclear bout how to go about this.

Made a venue offline. Simple. 4 racks. Each with

2 x IT4K
2 x IT6K

These amps will drive 16boxes of the Vertec 4888's.

When online and the amps are discovered, how do I associate them with the racks I created offline ?

Tx a ton!
Sidhu

Xti 2 presets wrong extension

26 November 2012 - 08:11 AM

Hello!

JBL presets for the  XTi 2 come labeled with the an 'xti' extension. Bandmanager/system architect refuse to load these onto an xti2 device.

Relabeling them as *.xti2 works.

Regards,
Sidhu