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Crown iTech series any good?

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smitske96 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 11 May 2018 at 7:27pm
I have some I-tech 4000's laying around, and could't find the All-pass filters in the dsp..
Anyone had this problem before? Embarrassed
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smitske96 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2018 at 1:32pm
Anyone? Wink
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Motion54 Quote  Post ReplyReply Direct Link To This Post Posted: 25 May 2018 at 6:51pm
Originally posted by smitske96 smitske96 wrote:

I have some I-tech 4000's laying around, and could't find the All-pass filters in the dsp..
Anyone had this problem before? Embarrassed

I couldn’t find them either in my 8000 the other day. 
But to fair, the last time I accessed them was via a laptop and not via the front menu.
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smitske96 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 25 May 2018 at 7:24pm
Without the architect software, you almost can't do anything with the dsp..
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Motion54 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Motion54 Quote  Post ReplyReply Direct Link To This Post Posted: 25 May 2018 at 7:29pm
I generally use my LMS to make any filter adjustments.
My Itech is used for kick duty only.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DjLeco Quote  Post ReplyReply Direct Link To This Post Posted: 27 May 2018 at 10:08am
I-tech series are Class I (BCA, Ballanced Current Amp).


http://sound.whsites.net/articles/137234.pdf

Is one very good class amplifier but if precision adjustments of underlap/overlap settings bad adjustment occurs, it could fail easy.

I have repaired 2 pieces, is a good amp but it's limiter, personally I don't like, it allow for some small period of times HARD CLIPPING until it limits to a clean sinewave, ans as all "burst power amplifiers", cannot sustain declared output power for extended period of times, as "oldschool" amplifiers can do.

Some tests here.

Crown Macro-Tech5000i: 










And here another model but the same in most part, Crown I-Tech 5000HD:







































Edited by DjLeco - 27 May 2018 at 10:21am
I'm A Stupid SMART Romanian...
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smitske96 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 29 May 2018 at 10:26pm
So I've send an email to technical support from crown, and got a solution (hopefully).
Maybe that I have some time tomorrow to see if it works.

I'll keep you updated!Thumbs Up
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Motion54 Quote  Post ReplyReply Direct Link To This Post Posted: 12 June 2018 at 7:55am
Originally posted by smitske96 smitske96 wrote:

So I've send an email to technical support from crown, and got a solution (hopefully).
Maybe that I have some time tomorrow to see if it works.

I'll keep you updated!Thumbs Up

Cool.

Any update?
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smitske96 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 12 June 2018 at 10:40am
To be honest.. I haven't tried yet, but I can send you the email chain they send me (with the solution ofcourse).




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Motion54 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Motion54 Quote  Post ReplyReply Direct Link To This Post Posted: 12 June 2018 at 12:31pm
Originally posted by smitske96 smitske96 wrote:

To be honest.. I haven't tried yet, but I can send you the email chain they send me (with the solution ofcourse).





Just informing us in the forum should be suffice.
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smitske96 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smitske96 Quote  Post ReplyReply Direct Link To This Post Posted: 29 January 2019 at 12:27pm
New question about the I-tech. 

I've searched the internet to find more about the available limiting but have one question about the average power limiter. I suspect these are not the same as the powersoft counter part, also looking at the limiting for their JBL products I can't get any confirmation, knowing they rate the transducers differently. 


Drivers used with current limiting:

BMS 18S430V2 126 Vpeak 300 Watt APL
B&C 15NW76-8 85 Vpeak 150 Watt APL
RCF ND950-8 (1.4") 28 Vpeak 35   Watt APL
12NW76/DE800 with passive filter (8 Ohm nominal) 85 Vpeak 150 Watt APL

Calculation for Vpeak = SQRT(R*P)
APL = P_AES/4

Impedance plot of all cabinets are planned in two weeks, so that would give any more info.
Has anyone more experience with the I-tech limiting? I've found some stuf about the I-tech HD but it's different from the older I-tech.
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