Works with

Any   computer (Mac or PC)
  iPod, iPhone, and iPad (all iDevices)
  Audioengine wireless audio adapters
  Apple Airport Express + AirPlay
  Any product with mini-jack or RCA outputs

Materials and construction

1/2 (13mm) thick MDF cabinets
  5 (130mm) Kevlar woofers with advanced voice coils
  3/4 (20mm) silk dome tweeters with neodymium magnets
  Torroidal power transformers

General specifications

Type
  2.0 powered (active) bookshelf-style speaker system

Power   Output
   150W peak power total (50W RMS / 75W peak per channel), AES

Inputs
   3.5mm stereo mini-jack, RCA L/R

Outputs
   RCA variable line-out, USB (power/charge)

Input   Voltages
   115/240V, 50/60Hz manually switchable

Amplifier   Type
   Dual Class AB monolithic

Drivers
   5 Kevlar woofers, 3/4 silk dome tweeters

SNR
   >95dB (typical A-weighted)

THD+N
   <0.05% at all power settings

Crosstalk
   -50dB

Frequency   response
   50Hz-22kHz ±1.5dB

Input   impedance
   10K ohms unbalanced

Protection
   Output current limiting, thermal over-temperature, power on/off   transient protection, replaceable external main fuse

Power   Consumption
   Idle: 10W
   Mute: 6W
   Sleep: 4W

  Weights and measures

Dimensions (each speaker HWD)
  Left 10.75 (27cm) x 7 (18cm) x 9 (23cm)
  Right 10.75 (27cm) x 7 (18cm) x 7.75 (20cm)

Weight (LEFT speaker)
   15.4 lbs (7 kg)

Weight (RIGHT speaker)
   9.6 lbs (4.4 kg)

Shipping weight
   31 lbs (14 kg)

Shipping box dims
   15 (38cm) x 22 (56cm) x 11.5 (29cm)

Environmental requirements

Operating   temperature: 32° to 95° F
  Non-operating temperature: -4° to 113° F
  Relative humidity: 5% to 95% non-condensin

Materials and construction

1/2 (13mm) thick MDF cabinets
  5 (130mm) Kevlar woofers with advanced voice coils
  3/4 (20mm) silk dome tweeters with neodymium magnets
  Torroidal power transformer

  Custom built

  Audioengine designs and manufactures our own tweeters, woofers, and other   critical components. In other words, these are not box built speakers with off-the-shelf parts but custom-designed to our   specifications. What we do not fabricate directly in our factory we have made   to our designs (parts such as transformers, magnets, and wiring harnesses,   for example). The cabinets, drivers, bass port designs, amplifiers, and   crossovers are all painstakingly tuned together for each Audioengine model.   This, in turn, makes for a much more efficient system that requires much less   power than passive speakers and a separate integrated amplifier or similar   A/V components.

Drivers

  Audioengine uses audiophile-quality, ferro fluid cooled silk dome tweeters   with neodymium magnets. Silk tweeters hold up well under high power and the   edge-driven design gives very smooth response. The woofers are Kevlar woven   glass aramid composite with rubber surrounds. Kevlar is obviously very b,   which means that the woofer retains its shape when being driven at high   levels. The speaker materials and construction are robust enough to stand up   to some serious thrashing, so speaker grills aren™t needed and they will   sound and look great after many years of use.

Power amplifiers

The   amplifiers in Audioengine speakers are located in the left speaker and are a   conservatively rated analog design. All components are tuned together for   each model, which provides a much more efficient system requiring less power   than passive speakers and separate amplifiers. Circuit boards for the power   and preamp sections are mounted for maximum mechanical shock protection.

Power transformers

Power transformers are a large contributor to the overall audio   performance, especially in the low end. Again, no off-the-shelf parts.   Audioengine uses gapless core toroidal transformers which have a tighter   radiated magnetic field, directly translating to lower noise. They are   lighter than standard, lower-cost EI   transformers and also generate less heat.

Shielding

Both   drivers are directly video shielded and allow the user to place the speakers   within a few inches of a video monitor. This shielding also offers protection   for hard-drive digital music players.

USB power

The Audioengine 5+ includes a 5V, 500mA USB power supply that powers   later generation iPod, iPhone, and most other USB bus-powered devices. The USB port is for power and charging, not for data   transfer or music syncing.