What is a DD-18 subwoofer?

The DD-18’s software displays the sub’s in-room response, from 20 to 200Hz, on a conventional TV set, along with the owner’s adjustments to subwoofer equalization, phase, and crossovers in real time. The DD-18’s nearly cubical enclosure, made in China, measures almost 2′ on a side and weighs 123 lbs.

What’s new on the DD-18?

The DD-18’s new new thing (footnote 1) is its built-in spectrum analyzer and eight-band digital equalizer, which allow the sub’s performance to be optimized for its owner’s listening room. (A handy TV set and the remote control are needed for this.)

How does the DD-18’s high gain servo system work?

The DD-18’s High Gain Servo system uses a new voice-coil-mounted accelerometer. An ADC chip digitizes the control signal at the woofer cone, reducing noise in the servo loop system.

What does the pv118d have to offer?

The PV118D has an 18″ heavy-duty woofer, along with a balanced XLR input jack, a balanced XLR output with switchable thru/high-pass filter, speaker level input signal, and volume level control. There is, also, a ground-level switch in case there’s ground-loop hum between related equipment.