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B&W 685 S2 vs Acoustic Energy 305 Comparison

Comparison and Difference Between

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Brand and Model Specifications

Information about the brand, model release date.

ManufacturerBowers & WilkinsAcoustic Energy
Model685 S2305
Release Date20172013
What Hi-Fi? Rating
Amazon Rating -

Technical Specs

Technical characteristics of the speakers.

Amplification TypePassivePassive
Crossover Type2-Way3-Way
Enclosure typeBass ReflexBass Reflex
Frequency Range (+/-3 dB)[Hz]49 - 2200035 - 32000
Frequency Range (-6dB)[Hz]--
Maximum SPL [dB]--
Sensitivity (2,83 V/1 m)[dB]8890
Nominal Impedance (Ohms)88
THD (Total Harmonic Distortion)--
Recommended Amplifier Power [W]25200
Crossover Frequency [Hz]4000-
Bass Reflex Tuning Frequency [Hz]--
Driver Units

Tweeter: 1 x 25mm aluminium dome
Mid/Bass Drivers: 1 x 165mm kevlar cone

HF Driver: 1x 28mm custom AE design fabric dome
Mid Driver: 1x 110mm spun, hard-anodised aluminium cone
LF Driver: 2x 110mm spun, hard-anodised aluminium cones

InputsSingle WireSingle Wire
Magnetic ShieldingNoNo

Placements and Distances

Where and how to put them.

Form FactorShelf, StandFloor
Distance from Wall [cm]1515

Dimensions and Weight

Physical characteristics of the speakers (without stands).

Length~7.5 in
~190.5 mm
~19.05 cm
~ in
~0 mm
~0 cm
Width~12.8 in
~325.12 mm
~32.51 cm
~185 in
~4699 mm
~469.9 cm
Height~13.5 in
~342.9 mm
~34.29 cm
~ in
~0 mm
~0 cm
Weight (Single Speaker)~15 lb
~6803.89 g
~6.8 kg
~17 lb
~7711.07 g
~7.71 kg
Shipping Weight~30 lb
~13607.77 g
~13.61 kg
~34 lb
~15422.14 g
~15.42 kg

Colors and Accessories

List of available colors and optional accessories.

  • Black Ash
  • Light Oak
  • Red Cherry
  • Wenge
  • Gloss black
  • Gloss white

Detachable GrillesNoNo

Price and Warranty

Satisfaction is (not) guaranteed.

Warranty3 Years5 Years
Amazon Price


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