Hi friends! First post here, we've built a soundsystem - Tansha Soundsystem.  Currently based in Bristol and have run a few successful events so far since finishing the build borrowing amps and DSP of a friend (you know how it is ).  I've finally got round to buying the amps we need to run the system and I have a few questions regarding power.  The full rig is as follows:

2 x Othorn tapped horn (B&C 18SW115)

2 x HD15 (Eminence Kappa 15LF)

2 x MT121 12" mids (P Audio 12MB)

4 x Faital Pro 6FE200 6" mids

2 x Compression tweeters (unknown brand)

6 x Peerless BC25SC08-04 Dome tweeters

(Picture here https://www.facebook.com/tanshasoundsystem/photos/pb.100083105353759.-2207520000./136538238994648/?type=3)

Powering / managing all this currently we have:

t.racks DSP 408

2 x Matrix XT7000MF

1 x Matrix XT4004

Currently we're running the system in the UK but haven't tested it with the new amps yet (carrying much more power than the previous amps used).

UK mains power:

• 3 pins
• grounded
• 13 A
• 220 – 240 V

Thanks for the help! Can you point me in the right direction regarding finding a suitable PDU?

Edit: Also, where does it state that I'll need '74A at 230v'?

For the 4004 it says:

Average Supply Current, Full load:10A
Mains Connector:20A POWERCON

And for the 7000MF:

Average Supply Current, Full load:32A
Mains Connector:32A POWERCON

am I missing something here?

Your voice coils in your speakers will be smoking before you take out a 32A breaker to run the whole system. 

If i were programming RMS limiters to protect your system the approx. Total thermal long term power handling is around 2400W across ALL your drivers. This leaves me to surmise that the average power draw with all amplifiers hitting those RMS limits would be around 12.5A based on 80% amplifier efficiency, short speaker cables and 240V mains.

So, one 32A FDU will be safe for the whole system if you play with venues with 32A supplies available but in reality you would still be fairly unlikely to even blow a 13A plugtop fuse!

By all means go with a 32A 3 phase system or even 125A single phase system if it makes you feel better, but it will be a total waste of your money and will also limit the number of venues that you can play in.

For ready made FDU’s check out VDC, Penn Elcom, Canford, EMO etc

hello mate.

will have a 16a Kelsey Acoustics distro up for sale in the next week or two.

might have a 32a one going too.

let me know if you might be interested.

Yes, definitely. Audio needs a lot less than you might imagine.

Invest in a power meter and do some tests. Even something cheap like this:-

https://www.ebay.com/itm/201701190528?hash=item2ef653eb80:g:6xkAAOSwnbZYEhhC&amdata=enc%3AAQAHAAAAoPAILXbQBhwfCRIEFG0jL3wSOprPIqY%2BPVwEZutYI8ccUG9fosZCHyE9TioOnhFnMeFYk18LaWN9dBYa7cINBx5rcpLOvU2fVzl3zOJ%2B1bIRBaJQv4v3xKqbEySdAJanXbWzzLc%2BlhazHUuR%2BJhATJ5ohp2qbDFhXfQri9H8WnAIoReYcV8k5Is1DS3%2B4%2FUnVlWqd5FJm6WmQAWd6MDy%2Fnw%3D%7Ctkp%3ABk9SR5Krw-LWYQ" rel="nofollow - https://www.ebay.com/itm/201701190528?hash=item2ef653eb80:g:6xkAAOSwnbZYEhhC&amdata=enc%3AAQAHAAAAoPAILXbQBhwfCRIEFG0jL3wSOprPIqY%2BPVwEZutYI8ccUG9fosZCHyE9TioOnhFnMeFYk18LaWN9dBYa7cINBx5rcpLOvU2fVzl3zOJ%2B1bIRBaJQv4v3xKqbEySdAJanXbWzzLc%2BlhazHUuR%2BJhATJ5ohp2qbDFhXfQri9H8WnAIoReYcV8k5Is1DS3%2B4%2FUnVlWqd5FJm6WmQAWd6MDy%2Fnw%3D%7Ctkp%3ABk9SR5Krw-LWYQ

You will be surprised.

Conanski wrote: Yeah you are going to need a power distribution system for sure, the specs suggest it will take 74A at 230v to get full output from those amps. You may not be pushing them that hard if most of the drivers are 8ohm but it's still going to be well over what a single circuit can supply.

Can assure you, despite "published" ratings, those amps combined, won't draw anywhere near 32A.

Kelsey PD7/32 will do the OP fine.

https://www.studiospares.com/kelsey-pd7-32-power-distribution-unit-450270.htm" rel="nofollow - https://www.studiospares.com/kelsey-pd7-32-power-distribution-unit-450270.htm

EDIT : As "csg", suggested above..

For some perverted reason, seems many distro shoppers, are afraid of buying 3PH distros with meters, often opting for more expensive, but very basic Kelsey/VDC 32A units with 13A sockets.. Strange..

Tells me a lot, when I see amp racks with 2-3x "10K" sub Amps, and mid top amps, with incoming mains distributed by "1x" 32A distro.