B&W ISW-4 Passive Subwoofer

Need big sound, slamming bass and audiophile extension, but donʼt want to see where it comes from? The ISW-4 in-wall subwoofer is for you. Two long-throw 200mm (8in) drivers allow it to move the large volumes of air needed for high-quality low-frequency output. The speaker is housed in its own sturdy back box for rock-solid stability and minimum sound bleed, and is powered by the SA250, a separate audiophile-standard 250W Class D amplifier.

Type     Advanced YST II and QD-Bass Subwoofer
Driver     25cm(10'') cone
Dynamic Power     250 W
Frequency Response     20-160 Hz
Advanced YST     Advanced YST II
QD-Bass Technology     Front-firing
High-Efficiency Power Amplifier     Yes
Linear Port     Yes
BASS (Bass Action Selector System)     Yes
Standby Power Consumption     0.3 W
Dimensions (W x H x D)     380 x 368 x 420 mm
Weight     18.5 kg

Description    Active balanced-drive closed-box subwoofer system
Drive units    2x Ø300mm (12 in) Rohacell® cone long-throw
Frequency range    -6dB at 15Hz and 250Hz
Frequency response    ±3dB 17Hz - 145Hz
Power output:    1000W
Rated power consumption:    135W
Standby power Consumption:    100dB
Functions:    5 Presets
Input sensitivity
Gain
Low-pass filter
Graphic equalisation
Room compensation
Auto on/standby
Trigger on/standby
Trigger preset switching
RS-232 automation control
Inputs:    Stereo Line In (2x RCA Phono)
Mono (LFE) Line In (RCA Phono)
Mono (LFE) Line In (XLR balanced)
Dimensions    Height:490mm (19.3 in) not including feet
Width: 460mm (18.1 in) including grilles
Depth: 410mm (16.2 in) including controls
Net weight    44kg (97 lb)
Cabinet finish    Gloss Black
Cherrywood
Rosenut
Grille    Black cloth

ALSO AVAILABLE IN  Cherrywood, rosenut

Length    No
Accessories    Mic, mic stand, remote control
Amplifier    390 watts Dynamic/195 watts RMS Power
Auto On/Off    Yes
Cabinet Design    Extended Excursion Down-firing port
Color    Black Ash Wood Grain
Dimensions: (H/W/D)    16.75” x 15.25” x 17” (includes feet and grille) (42.5 x 38.7 x 43.1 cm)
HiPass Crossover    80 Hz, 6 dB/octave
LoPass Crossover    40 - 120 Hz adjustable (12 dB octave, 24 dB ultimate)
Phase Control    0, 90, 180, 270 Degrees
Removable Grille    Yes
Shipping Weight    39 lbs. (18 Kg)
Size    Large
Voice Coil    2-Layer copper
Warranty (N. Am.)    Two years (electronics & drivers - parts & labor)

Crossover Tuning    
Mushrooms    
Description     Active closed-box subwoofer system
Drive unit     ø250mm (10 in) paper/Kevlar® cone long-throw
Frequency range     -6dB at 18Hz and 25/140Hz adjustable (EQ at A)
Frequency response     ±3dB 25Hz – 40/140Hz adjustable (EQ at A)
Bass Extension     -6dB at 18Hz (position A)

-6dB at 23Hz (position B)

-6dB at 28Hz (position C)
Amplifier     Power output: 500W
Rated power consumption:     98W / 1W standby
Input impedance:     33kΩ
Signal / noise:     >90dB
Functions:     Input level (line in)

Input level (speaker in)

Low-pass filter frequency (line in only)

Low-pass filter bypass

Bass extension

Bass roll-off alignment

Auto sense on/standby

Phase switch
Inputs:     Line In (RCA Phono)

Speaker in (Binding post)

12v trigger (3.5mm jack)

Low-pass filter

Active 4th-order, variable cut-off frequency
Dimensions     Height: 325mm (12.8 in) not including feet

Width: 325mm (12.8 in)

Depth: 375mm (14.8 in) including grille and controls
Net weight     15.5kg (34.4 lb)
Finishes     Matte Black

Length    No
Accessories    Mic, mic stand, remote control
Amplifier    360 watts Dynamic/180 watts RMS Power
Auto On/Off    Yes
Cabinet Design    Extended Excursion Down-firing port
Color    Black Ash Wood Grain
Dimensions: (H/W/D)    14.5" x 13.25" x 14.875" (36.8 x 33.7 x 37.8 cm)
HiPass Crossover    80 Hz*, 6 dB/octave
LoPass Crossover    40-120 Hz adjustable (12 dB octave, 24 dB ultimate)
Phase Control    0, 90, 180, 270 Degrees
Removable Grille    Yes
Shipping Weight    31 lbs. (14 kg)
Size    No
Voice Coil    2-Layer copper
Warranty (N. Am.)    Two years (electronics & drivers - parts & labor)