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M4 Audio Interface vs UltraLite mk5 Audio Interface

The UltraLite mk5 Audio Interface costs about $420 more than the M4 Audio Interface and buys you 8 more I/O, plus DC Barrel. It also costs you 1 more rack unit.

M4 Audio Interface and UltraLite mk5 Audio Interface compared on rack space, weight, power, depth, I/O and price
SpecM4 Audio InterfaceUltraLite mk5 Audio Interface
Rack space1U half-rack
Weight1.5 lbs3.1 lbs
Power draw5W15W
Depth160 mm209 mm
I/O count715
Price~$280~$700

Highlighted where one is plainly lighter, smaller, cheaper or draws less. I/O count is left unmarked on purpose — more connectors you don't need is weight, cost and a bigger case.

Connectors only one of them has

M4 Audio Interface

  • MIDI 5-pin DIN

UltraLite mk5 Audio Interface

  • DC Barrel

Settle it in your own rack

Specs decide less than fit does. Drop either one into your rig and see the real answer — what space is left, what the circuit draws, and whether every cable it needs actually lands somewhere.

Open the rack plannerFree, no sign-up. Both units are in the catalog.

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