A true audiophile design, the twenty.sub is at home playing music or movies whilst delivering precise, dynamic results, no matter the volume level. The slender cabinet blends beautifully with any interior. Housed within is a long and highly effective ATL™, which, when teamed with the twin 7-inch custom bass units, goes down to a staggering 22Hz.

The high-mass, resonance-absorbing plinth eliminates unwanted vibration, offers cable management, and provides an ideal stable platform. Active electronics derived from our renowned professional designs offer on-board DSP that optimises the driver responses and provides an array of low-pass filtering, frequency adjustments and a parametric EQ for perfect in-room tuning. Power is supplied by PMC’s 400W Class-D ultra-low-distortion audiophile amplifier, which allows for both balanced analogue and digital connections.

Thanks to its versatile inputs and filtered and unfiltered outputs, whether it’s used in a supreme multichannel AV system or as the perfect sub-bass addition to a passive 2.1 music system, the twenty.sub is a truly future-proofed package.


Technical Data:


Freq response 22Hz – 200Hz
Effective ATL™ 3m 9.8ft
Drive units 2 x PMC twenty® series, lightweight doped 7”/177mm cone with cast alloy chassis
Input connectors

2 x balanced analogue (left/right XLR female)

(RCA unbalanced adapter provided)

1 x AES digital XLR female (accepts 32 -192kHz, 24bit)

Output connectors

2 x balanced analogue (left/right XLR male)

1 x AES output XLR (male)

NB: Both analogue and digital outputs are active regardless of source

Mains power IEC connector 90-132V / 180-264V AC auto-sensing
Amplifier power 400Wrms Class-D
User controls

1 x Parametric EQ

- Gain: -8.00 to +8dB

- Freq: 20Hz-150Hz

- Q: 1 to 8 in 0.5

Selectable LF rolloff slope: off (6dB/Oct, 12dB/Oct, 18dB/Oct)

Selectable LF rolloff frequency points: 50Hz, 80Hz, 120Hz, 150Hz, 200Hz

+10dB Gain: off/on

Phase reverse: off/on

Phase: 0-80 degrees in 5 degree steps

Volume range -48.5dB to +15dB

H 577mm 22.72” (+25mm spikes)

W 200mm 7.87”

D 516mm 20.31” (+10mm grille)

Weight 23kg 51 lbs