Here’s something you don’t see every day. Sonicweld seems to be the only loudspeaker manufacturer to build subwoofers almost entirely out of shiny metallic materials. They only have one subwoofer model, the Subpulse, but that’s no ordinary subwoofer we’re talking here.

According to Sonicweld, the Subpulse was built as a no-compromise subwoofer, which also goes well with the company’s other products, like the Pulserod floorstanding speakers. Subpulse houses an advanced extreme (2.6" peak-to-peak) excursion 15" woofer with a precision-formed anodized aluminum cone, mated to a 1100W switching amplifier that provides effortless power.

The specs are pretty solid, but what sets this subwoofer apart is the enclosure which is precision machined from 21 pieces of solid aluminum stock. The enclosure’s walls are 1.25" thick, and the top and bottom plates are 2" thick.

The Subpulse is specifically designed to provide reference-class performance, especially in the difficult bottom octaves. For larger rooms or home theater installations, two Subpulse units are recommended for lower distortion, greater dynamic range, and output uniformity.

Here are some more highlights:

- Analog input circuitry: Sonicweld-designed balanced front end, special EMI/RFI rejection circuit for ultra-low distortion and noise immunity
- AC conditioning: Multiple, redundant surge protection and noise filtration circuits built-in
- Weight: 220 lbs. each (99.79 kg)
- Dimensions: 18" x 18" x 18" (45.72 cm x 45.72 cm x 45.72 cm)
- Frequency response: 16 - 200 Hz, crossover executed digitally, typically at 90 Hz, 72 dB/octave (dependent on customer's room and system optimization)

You can purchase two Subpulse subwoofers together with two Pulserod main speakers and one highly-modified DEQX processor for $99,000.