Напольная акустика — Evolution Acoustics SYSTEM TWO

The SYSTEM TWO is a two-way loudspeaker in the SYSTEM line of Evolution Acoustics, a maker that designs, engineers and hand-builds its speakers in San Diego, California. The line name is an acronym of Select Your Speaker Through Exact Modularity, describing a concept in which buyers assemble a reference loudspeaker from shared modules. The SYSTEM TWO combines one MTM module, with a midrange, a tweeter and a second midrange, and one powered bass module beneath it.

Key specs that matter

Driver complement per tower is a single 6 inch silk AMT tweeter, a pair of 7 inch Accuton ceramic CELL midrange units and four 7 inch Accuton aluminium CELL woofers. Evolution Acoustics quotes a response from DC to 40 kHz, a sensitivity of 98 dB and a nominal impedance of 4 ohm. The woofer section is driven by a built-in 600 W amplifier. Each speaker stands about 1,372 mm high, 254 mm wide and 533 mm deep and weighs about 107 kg.

Engineering and use context

The passive section is fed by a two-way EXACT constant voltage series crossover. Air Motion Transformer tweeters in the SYSTEM range use a pleated silk-textile diaphragm. With only a single powered bass module, the SYSTEM TWO is about 762 mm shorter than the three-way model, which stacks bass modules above and below its MTM array. A dial on the bass module sets bass level and subsonic extension, and the woofers can be tuned flat down to DC. The North American price is USD 115,000, and the speaker is built to order. Both versions are built on the SYSTEM CORE platform, so the range can be configured to suit the listening room size and the buyer's needs rather than being offered as fixed models. The maker lists the MODEL series and the Pro division alongside SYSTEM among its current lines.

Pairing

Since the four woofers receive power from their own amplifier, the external amplifier drives only the ceramic midrange units and the AMT tweeter. The high sensitivity means that section places modest voltage demands on the amplifier, and an outboard amplifier of 20 W to 1,000 W per channel falls within the listed handling range.

Alternatives

The Evolution Acoustics SYSTEM THREE extends the same platform to three ways, doubling the woofer count to eight and raising internal amplification to 1,200 W in a taller cabinet.