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12 volt DBX Driverack on Ebay |
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JohnnyPyro 
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Joined: 17 November 2008 Location: London Status: Offline Points: 1342 |
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 Topic: 12 volt DBX Driverack on EbayPosted: 14 February 2012 at 7:29pm |
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Just stumbled apon this while browsing the car audio gear http://www.ebay.co.uk/itm/DBX-Driverack-260-Pro-Audio-12V-converted-/330684154929?pt=UK_In_Car_Technology&hash=item4cfe4fc431 .. nothing to do with me .. might be of interest to you guys
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Pyrotechnics... its not rocket science, well.... actually it is !! :o)
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rebellion_soundz
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Posted: 14 February 2012 at 9:34pm |
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that's sick man never thought dbx will do thinks like this?
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dont live in the past, cos you might not get to the future......
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slaz
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Posted: 14 February 2012 at 10:42pm |
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Most likely a one-off custom job. OK for a vehicle-mounted system of some sort .... no real use for a portable 12V system that I can think of .... 19" rack mount + chunky great XLR connects + very likely heavy power consumption.
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REMEMBER....POLITICIANS AND DIAPERS SHOULD BE CHANGED OFTEN AND FOR THE SAME REASON
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rebellion_soundz
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Posted: 15 February 2012 at 2:17am |
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is there no way you could make sumin so the power aint consumed as much?
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dont live in the past, cos you might not get to the future......
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SamV
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Joined: 21 October 2008 Location: London Status: Offline Points: 5006 |
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Posted: 15 February 2012 at 2:25am |
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That is the twin of the one I had. It was converted by a trusty source and not by DBX. I know the seller too and he's cool.
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Radiance Audio http://www.radianceaudio.co.uk | Bikeology http://www.bikeology.net
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SamV
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Joined: 21 October 2008 Location: London Status: Offline Points: 5006 |
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Posted: 15 February 2012 at 2:27am |
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Oh and power consumption wasn't that bad, certainly didn't notice much difference between that and a native 12v processor.
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Radiance Audio http://www.radianceaudio.co.uk | Bikeology http://www.bikeology.net
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Calculus
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Posted: 15 February 2012 at 6:52am |
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alot of things are 12v dc inside that take iec kettle lead type connectors you can by pass the power supply bit internally if you can supply a stable enough voltage without... that would be my worry for this with a battery system rather than power consumption... Interestingly you can use found computer powersupplies to use your 12v amps off main aswell but that is a different story.
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Always a compromise, You can't have everything...
Where would you put it all. |
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infrasound
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Posted: 15 February 2012 at 9:07am |
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All you need is a £15 buck converter and some basic soldering skills
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slaz
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Posted: 15 February 2012 at 9:25am |
Hmmm .... there's usually a bit more to it than that - if you're doing a thorough job. Do you need extrra DC de-coupling ? What about the voltage tolerance range ? Earthing issues ? Alot of audio gear gear like that will use multiple DC voltages internally - for stuff like LEDs, displays etc. .... so not so straightforward if you also want power economy. The stuff designed for cars generally makes no concessions to power economy - it assumes you have plenty of 12V available ..... Its all do-able via DC-DC converter ICs of course .... |
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REMEMBER....POLITICIANS AND DIAPERS SHOULD BE CHANGED OFTEN AND FOR THE SAME REASON
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infrasound
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Posted: 15 February 2012 at 9:42am |
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You would have thought so, but of the kit I've looked at - FBQ1502, FBQ800, DCX2496, DRIVERACK260 it's basic linear supply and zener based regs (extra high drop). All the housekeeping supplies are created on board, after the rail regulation - so you don't need to touch them.
As you're just bypassing their linear psu, earthing is pretty simple. Never needed a decoupling cap with the converters I've used, they switch high enough not to be an issue. Would be easy enough to implement if you needed to though .In the interests of power consumption, I've managed to undervolt one circuit - running it off +-6v instead of the normal +-10v. Luckily the smaller Vregs and opamps on the board could easily handle it. Havent measured the decrease in current to the whole board, but would imagine its around 40%. |
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infrasound wrote: