Wharfedale Power Cube Super 15 Subwoofer

The Wharfedale SW‑15, also known as the PowerCube Super 15, is a robust, floor-standing active subwoofer engineered to deliver deep, precise bass for both music and home theater use 

 Key Features

• Driver & Amplification
  Utilizes a single 15″ (380 mm) long-throw non-pressed paper cone driver, powered by a high-output 400 W RMS amplifier (850 W peak) 

• Frequency Response
  Covers a frequency range of approximately 30–120 Hz (±3 dB), ensuring impactful bass without distortion 

• Crossover & Controls
  Features a continuously variable low-pass crossover (30–150 Hz), phase inversion switch, volume knob, and an auto on/off standby feature that preserves power when not in use 

• Inputs
  Offers versatility with stereo line-in (2 × RCA phono) and mono LFE (RCA) connections. Input impedance: 10 kΩ for line, 5 kΩ for LFE 

• Signal-to-Noise & Output Performance
  Exhibits a S/N ratio of ≥ 85 dB and produces peak sound pressure levels up to ~124 dB at 1 m 

 Design & Build

• Bass-Reflex Cabinet
  Solid, ported wooden enclosure measuring ~23.5″ H × 19.7″ W × 21.9″ D (60 × 50 × 54 cm), weighing about 27 kg (59.5 lb) 

• Durable Cone Tech
  The unpressed paper cone enhances damping and clarity, with copper-lined voice-coil vents to reduce distortion and improve thermal handling 

• Finishes
  Available in multiple cabinet finishes—such as black, white, walnut, or high-gloss—to match your aesthetic .

 Sound Quality

• Combines substantial output levels with tight transient control, achieving clean, musical bass in its price range

• Ideal for both cinematic low-frequency impact and dynamic musical reproduction.

 Ideal For

• Home cinema setups needing deep, room-filling bass.

• Audiophiles seeking a single-driver subwoofer for musical clarity and punch.

• Users who appreciate adjustable crossover, phase, and auto standby functionality.

SPECIFICATIONS
Description:    Floor standing, subwoofer, number of bands: 1, bass-reflex type
Number of lanes:    1
Sensitivity:    120 dB
Crossover frequency:    35-85
Location:    Floor
Maximum frequency:    95 Hz
Minimum frequency:    35 Hz
Acoustic design:    Bass-reflex type
Speaker type:    Subwoofer
Woofer dimensions:    380 mm
Max power:    300 W