Several distinguishing features combine to make the ULTIMATUM a very special loudspeaker. There are seven discrete internal cavities, with five of the drive units facing forward in an extended D'Appolito array.
The top and bottom drive units handle low-bass. The 'inner' pair handling bass and midrange. The main tweeter is in the centre, and is augmented by the two upward-firing EMIT super-tweeters.
Uniquely, two separate compound (iso-baric) chambers are employed for the low-bass sections, giving superb pitch articulation and control.
Three years of development have been spent on solving the problem of deleterious vibrational effects and the driver-mounting baffles (front & top) are decoupled from the main structure via a polyethylene membrane. The total baffle is a 45mm thick 'sandwich' of Birch Plywood, Polyethylene and MDF. This provides a rigid non-resonant platform, which is ideal for optimal performance of the drive units.
The crossover is a minimalist 5 element type (plus damping & attenuating resistors) employing precisely toleranced, low loss air-cored inductors and Neat's newly-developed polypropylene film & foil capacitors. The speaker exploits predominantly first-order crossover slopes and mechanical roll-offs for a natural, uninhibited performance.
Plinth footprint: 35x51cm (wd)
Enclosure type: Vertical in-line extended D'Appolito array, incorporating iso-baric reflex-tuned and infinite baffle internal cavities, plus upward firing super-tweeters
Sensitivity: 90db/1 watt
Recommended amplifier power: 25 - 500watts
Impedance: 8 ohms average. Minimum 4.7 ohms
Weight: 66kg each
Neat Ultimatum premium (high gloss) finishes.
The representations above are for guidance only.