Ultra Portable Battery Powered PA System

Ideally suited to Street Performers, Theatre Companies & Individuals


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This model has been designed as the ultimate portable PA system for professional use, with huge power and sound quality. You can very easily travel with it, and it conforms to the 2009 CAA regulations of approved aircraft hand luggage, however always check with your airline as regulations can change. It differs from the Mk3 version in that it is slightly smaller and lighter which makes it more suitable for those people who need the smallest and lightest PA possible that will provide huge high quality sound.

These systems are quite simply jaw droppingly impressive for their size and weight. Whatever small PA systems you have heard before they will not compare to this, and many mains powered, large and expensive systems can be put to shame. This sound quality has only been possible with many years of research and design, in conjunction with great electronic engineering knowledge and skilled craftsmanship – you will not find anything similar anywhere on sale today. And as always this system has been entirely hand built with very high quality components sourced from all over the world.

At the heart of the PA's is a ‘Class T’ amplifier chip (sometimes called digital although it isn’t really) made by a company called Tripath . Tripath are no longer in existence, but before they disappeared they designed and patented a range of amplifier chips that many small audiophile manufactures have used for various applications - Google them. Panasonic used the same amplifier chip in a range of car stereos which broke the world record for the highest power output from a standard production car stereo. Wattage figures are almost meaningless as it depends on what you do with the power, what it costs to create it in the first place, how distorted the sound is, and are the figures even accurate ! (Wattage figures are notoriously lied about, as well as being measured at RMS and peak levels) …however this system has been measured at 76 Watts RMS at <1% distortion, and calculated at a maximum of 125 Watts in standard configuration. (The Chip is capable of producing 400 Watts in other custom configurations.) It should be enough to say it is very loud and louder than you would think possible from such small boxes.

Current Mk2 standard models have :

Two speaker units (Stuffed and Thing)
5 meters of cable as standard (more or less can be supplied)
Preamp for high power output from low level input devices such as iPods
Volume / gain control
Screw lockable inputs and outputs to eliminate crackle / noise due to poor connections
On / mute ultra-bright blue LED
Internal aluminium bracing
Adjustable tweeters (orientation and output)
Aperiodic enclosure venting system
3 hour smart charger 110 ~ 240 V mains with UK plug
Rubber feet

Additional options are :

Multiple 3.5mm jack input sockets
LED battery level meter
Strap carry handle (goes flat when not in use)
External power input socket for additional back-up 12 to 24V DC (ideally sealed lead acid battery)
Shoulder bag with acoustically transparent fabric panel
Screw Locking stereo to double mono input converter cable (particularly useful when using ‘Stuffed’ on its own or for converting stereo signals to mono when using both speakers)
Screw Locking stereo to stereo input cable
Removable ‘Flying lead’ forThing
Extra cable for Thing
'Liposafe' recharging bag

Please contact me for current prices according to your individual requirements.

Specifications:

Amplifier : T-Class (audiophile sound quality)
Speakers : 2x Infinity Kappa 652.9i (2way, 2 ohm)
Sensitivity (2.83V, 1m) : 95dB
Battery : 14.8v Li-Ion rechargeable
Size (approx ) : 20cm x 18cm x 11cm
Weight Stuffed : 2.5 Kg / 5.5 lbs
Weight Thing : 1.75 Kg / 3.85 lbs
Power Output RMS @ <1% distortion : 76 watts
Max power output (saturated square wave) : 125 watts
Battery life in Normal* use : 3~6 hours
Recharge Cycles : 500~800*
Full recharge time (approx) : 3 hours
Fuse : 5A slow blow

*Normal use is deemed as being used to amplify constant Rock / Pop music played at high volume without any sound clipping / distortion from excessive volume, and with a fully charged battery. This time will vary considerably depending upon the volume and type of use.
*New batteries can be easily installed if and when necessary.

There is only one input as standard (designed to be connected to the headphone socket of an iPod / mini-disc / MP3 etc, or via a line-out socket, or connected to a radio microphone set). More inputs can be added when ordered, or if you need a small mixer for multiple inputs, places like Maplin Electronics do lots www.maplin.co.uk - they have a couple of tiny 9 volt battery powered ones with 4 or 8 channels for about £20. For the size and money they are probably the best you will find – but can certainly be bettered in terms of quality. For a higher quality, more expensive, and slightly larger battery powered or mains powered mixer try Behringer mixers - www.behringer.com

The left channel output socket (where the second speaker ‘Thing’ is normally connected), can also be used to drive a dedicated bass speaker or subwoofer – contact me for details. Bass guitars should not be amplified through the standard speakers.

Since the amplifier chip is a high frequency switching mode one, it emits some radio interference which can interfere with AM, FM, LW, SW radio signals in close proximity – for this reason you may not be able to amplify these signals, But radio microphones are not affected and can be used with excellent results.

The units are available in lots of custom formats – amplifier only; amplifier with battery and no speaker; extra outputs, extra internal batteries etc; but generally the best and most versatile option has two speaker boxes - one plugs into the other so you can have the option of a one or two speaker set up – this is a ‘Stuffed and Thing’.

Units are normally offered on sale or return – conditions apply.

These PA’s have been designed in collaboration with an electronic and acoustic engineer. If you need technical assistance with any other projects, repairs to old equipment etc then please email Nick.

If you would like more information on specifications and prices please email Nick by clicking on the postbox below, or phone him on +44 (0)1603 441098

And remember…. you are paying for what is there, as well as for what isn’t !