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Author Topic: Tannoy VQ series compression driver  (Read 2355 times)

Adrian Bamford

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Tannoy VQ series compression driver
« on: February 18, 2014, 09:20:46 am »

Hi All,

Does anyone know what size compression driver is in the Tannoy VQ60, VQ100 and the down-fill boxes ? It's referred to in all the Tannoy specs simply as 'Dual Concentric Compression driver loaded into a single PSW Waveguide'; no size given.

I've recently visited a venue with several of these boxes flown, and the high-end is not great - like the PA had a blanket over it. I'm looking to find out why.
Regards,

Ade
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Tim McCulloch

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Re: Tannoy VQ series compression driver
« Reply #1 on: February 18, 2014, 09:39:51 am »

Hi All,

Does anyone know what size compression driver is in the Tannoy VQ60, VQ100 and the down-fill boxes ? It's referred to in all the Tannoy specs simply as 'Dual Concentric Compression driver loaded into a single PSW Waveguide'; no size given.

I've recently visited a venue with several of these boxes flown, and the high-end is not great - like the PA had a blanket over it. I'm looking to find out why.
Regards,

Ade

System tuning and voicing, perhaps.  There are lots of complicated bits between the microphone and loudspeaker.
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Adrian Bamford

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Re: Tannoy VQ series compression driver
« Reply #2 on: February 18, 2014, 10:49:00 am »

Granted - but this is Just a Beta '58 into an AH iLive console input with flat everything, then into a Labgruppen C:28.4, and then into the VQ60. A professional sound system shouldn't, and usually doesn't, take any form of system tuning to make that sound at least passable.
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Tim McCulloch

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Re: Tannoy VQ series compression driver
« Reply #3 on: February 18, 2014, 11:09:05 am »

Granted - but this is Just a Beta '58 into an AH iLive console input with flat everything, then into a Labgruppen C:28.4, and then into the VQ60. A professional sound system shouldn't, and usually doesn't, take any form of system tuning to make that sound at least passable.

Have you taken your concerns to Tannoy?
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Mike Pyle

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Re: Tannoy VQ series compression driver
« Reply #4 on: February 18, 2014, 11:28:04 am »

Granted - but this is Just a Beta '58 into an AH iLive console input with flat everything, then into a Labgruppen C:28.4, and then into the VQ60. A professional sound system shouldn't, and usually doesn't, take any form of system tuning to make that sound at least passable.

The VQ60 and VQ100 are both spec'ed as "bi-amp or tri-amp" systems, so there must be an active crossover or processing in there somewhere. As to the driver sizes, here is a description from an A&E sheet on the web:

"The loudspeaker shall consist of a Dual Concentric™ Compression driver with a 3.5” Midrange voice coil and a 2” High Frequency voice coil, both mounted in a common subsystem with a common 2" exit. This Dual Concentric™ compression driver shall be coupled to a PSW™ (Point Source Waveguide) constant directivity horn operating over the frequency range of 450Hz to 23kHz. The low frequency section consists of two 12” (300mm) woofers, and shall be mounted in a semi-horn loaded enclosure to provide significant off axis attenuation below 450Hz."
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Mac Kerr

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Re: Tannoy VQ series compression driver
« Reply #5 on: February 18, 2014, 11:57:21 am »

Granted - but this is Just a Beta '58 into an AH iLive console input with flat everything, then into a Labgruppen C:28.4, and then into the VQ60. A professional sound system shouldn't, and usually doesn't, take any form of system tuning to make that sound at least passable.

There seems to be a critical component missing from that signal chain, the crossover. The VQ-60 is bi amp or tri amp only, you must have an active crossover or DSP and 2 or 3 amp channels to power all of the drivers.

HERE is the spec sheet.

Mac
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Jens Palm Bacher

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Re: Tannoy VQ series compression driver
« Reply #6 on: February 18, 2014, 12:21:20 pm »

Hi All,

Does anyone know what size compression driver is in the Tannoy VQ60, VQ100 and the down-fill boxes ? It's referred to in all the Tannoy specs simply as 'Dual Concentric Compression driver loaded into a single PSW Waveguide'; no size given.

I've recently visited a venue with several of these boxes flown, and the high-end is not great - like the PA had a blanket over it. I'm looking to find out why.
Regards,

Ade
BMS 4592
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gordonmcgregor

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Re: Tannoy VQ series compression driver
« Reply #7 on: February 18, 2014, 02:00:23 pm »

Granted - but this is Just a Beta '58 into an AH iLive console input with flat everything, then into a Labgruppen C:28.4, and then into the VQ60. A professional sound system shouldn't, and usually doesn't, take any form of system tuning to make that sound at least passable.

As has been said there needs to be at least a bi-amp crossover and I would say that a lack of high end is not the usual complaint with these boxes so something isn't set or wired right, there should be enough  power in that amp to drive 2 cabs in bi amp mode at least. If it bothers you and you can get access to the amps etc have a look for whatever processor is there and check it's settings with the ones published on Tannoy's website. G
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Adrian Bamford

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Re: Tannoy VQ series compression driver
« Reply #8 on: February 18, 2014, 02:17:38 pm »

Thanks all, It's not really my gig or anything; I was asked to take a listen because no-one could get any vocal level in a band situation. A complete lack of real high-end stick out like s sore thumb. I'll dig a little deeper and see what's going on. Ade
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Art Welter

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Re: Tannoy VQ series compression driver
« Reply #9 on: February 18, 2014, 02:35:19 pm »

Thanks all, It's not really my gig or anything; I was asked to take a listen because no-one could get any vocal level in a band situation. A complete lack of real high-end stick out like s sore thumb. I'll dig a little deeper and see what's going on. Ade
A complete lack of high end would indicate the HF portion of the coax is burnt out, leaving virtually no response (steep roll off) above around 6 kHz.

Beta 58 would sound like it has a pair of gym socks over it.
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