Momentum J-S

Bookshelf Speaker

This stand mount is essentially a slightly more compact and simplified version of the Ultimatum XLS. The front baffle, which is coupled to the cabinet via a polyethylene membrane, houses the tweeter and an Ultimatum type 170mm drive unit handling bass and midrange frequencies.

Inside, mounted behind the main drive unit, is another 170cm unit. The space between these units is sealed, in iso-baric configuration.

The rear port is a low-Q type, which also incorporates an acoustic filter to restrict airflow and give greater control to bass frequencies.

The crossovers are all hard wired, with point-to-point connections to maximise integrity. The components are of premium audiophile quality and include high voltage polypropylene capacitors and low loss air-cored inductors.

The Momentum J-S can be easily accommodated in small rooms, yet it is also capable of filling larger spaces with the ease of a large floorstanding model. It offers top-flight performance at a less than high end price.

• Enclosure type: 2-way, iso-baric bass reflex
• Sensitivity (2.83 V / 1 m): 86 dB / 1 W
• Frequency response: 25 Hz - 45 kHz (AIRR, -6 dB)
• Recommended amplifier power: 25 - 200 W
• Impedance: 8 Ω nominal, 5 Ω minimum