A5+ Classic Speaker System

Type
Powered speaker system

Amplifier Type
Class AB

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

Drivers
5″ aramid fiber woofers

0.75″ silk dome tweeters

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

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

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

SNR
>95 dB (typical A-weighted)

THD+N
<0.05% at all power settings

Crosstalk
<50 dB

Frequency Response
50 Hz-22 kHz ±1.5 dB

Input Impedence
10K ohms unbalanced

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

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

Connector Type
Standard USB

USB Device Class
USB 1.1 or above

Dimensions (HWD)
Left (active) – 10.75″ (27 cm) x 7″ (18 cm) x 9″ (23 cm)
Right (passive) – 10.75″ (27 cm) x 7″ (18 cm) x 7.75″ (20 cm)

Weight
Left (active) – 15.4 lb (7 kg)
Right (passive) – 9.6 lb (4.4 kg)

Total Shipping Weight
31 lb (14 kg)

Shipping Box Dimensions (LWH)
22″ (56 cm) x 11.5″ (29 cm) x 15″ (38 cm)

Operating temperature: 32 degrees F to 95 degrees F
Non-operating temperature: -4 degrees F to 113 degrees F
Relative humidity: 5 – 95% non-condensing

0.5″ (13 mm) thick MDF cabinets
5″ (130 mm) aramid fiber woofers with advanced voice coils
0.75″ (20 mm) silk dome tweeters with neodymium magnets
Toroidal power transformer

To minimize unwanted resonances and distortion, Audioengine cabinets have thick high-resin MDF walls with extensive internal bracing. Heavy internal sound-damping material is used to reduce unwanted sound reflections inside the cabinet. All cabinet edges are rounded which look great and reduce high-frequency diffraction effects on the front baffles. The A5+ cabinet contains tuned, rear-port slots.

The A5+ cabinets are available in several handsome finishes, including bamboo veneers as well as satin black and high-gloss white paint, offering a wide choice for complementing room furnishings.

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.

Studio monitor speakers are used by producers and engineers in recording and production studios. They are designed with a theoretical flat frequency response which allows the engineer to create a final mix in such a way that the recorded music will sound good on most other speakers. Although Audioengine speakers are not designed to be up-close “nearfield” studio monitors, we do carry over much of the same higher-end technology, components, and design philosophy for all Audioengine speaker systems.

The speaker cabinets, drivers, innovative bass port designs, amplifiers, and passive crossovers are all critically tuned together for each Audioengine model. This, in turn, makes for a much more efficient system that requires less power than passive speakers and a separate integrated amplifier or similar A/V components. We build all this goodness into the left speaker cabinet to make it super-easy to connect your smartphone, tablet, computer, TV, network player or any other audio product.

The Audioengine A5+ includes a 5V, 500mA USB power supply for charging portable devices, while listening to your music. The USB connector allows you to charge and power your Smartphone, Tablet, Audioengine wireless adapters or any other USB powered product. USB is for power only, not USB audio or data transfer.

The amplifiers in powered Audioengine speakers are located in the left speaker and are a conservatively-rated class A/B analog monoblock design. This is a more traditional speaker/amplifier marriage which provides excellent quality audio and greater flexibility. All circuit boards for the power and preamp sections are vertically mounted for maximum mechanical shock protection.

Audioengine uses audiophile-quality, ferrofluid-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 aramid fiber woven glass composite with rubber surrounds. Aramid fiber is obviously very strong, 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 are not needed and they will sound and look great after many years of use.

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 transformers and also generate less heat.

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.