Features

Two-Way Speaker System: Each of the Audioengine A5+ Wireless speakers has two drivers; a 3/4" silk dome tweeter & a 5" Kevlar woofer. The A5+ Wireless provides a real, natural sound; very near to the originally-recorded music. The A5+ Wireless has a frequency response of 50Hz to 22,000Hz (+/-1.5dB)

• Silk Dome Tweeters: Audioengine uses audiophile-quality, ferro-fluid cooled silk dome tweeters with neodymium magnets. Silk tweeters hold up well under high power & the edge-driven design gives very smooth response.
• Kevlar Woofers: The woofers are Kevlar woven glass aramid composite with rubber surrounds. Kevlar is very strong, which means that the woofer retains its shape when being driven at high levels.

Built-in Amplifier: The A5+ Wireless is powered by a 50-watt RMS x 2ch amplifier (SNR: >94dB, THD: <0.05%), built into the left speaker. The built-in power amplifier saves space & eliminates the need to connect Audioengine 5+ to a stereo receiver or external power amp. Simply plug the left speaker into an AC outlet & connect the included speaker wire from the left to right speaker. All internal components of the A5+ Wireless are tuned together, providing a more efficient system requiring less power than passive speakers & amplifiers.

Toroidal Transformers: Power transformers are a large contributor to the overall audio performance, especially in the low end (bass response). 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.

MDF Cabinet: The cabinets are built using 1" MDF with internal bracing. Internal sound-damping material reduces unwanted reflections inside the cabinet. The cabinet edges are rounded to reduce high-frequency diffraction effects on the front baffles. The speakers are hand finished, then tuned & tested together to be sold in matching pairs.

Rear Firing Bass Ports: One of the reasons the A5+ Wireless has such great bass response for a compact speaker is the design of the rear bass port on each speaker. The rear bass ports are specifically shaped and have been precisely calculated. The result is incredible low end with minimal audible air turbulence, so you can use the Audioengine 5+ speakers with or without a separate subwoofer.

Bluetooth Audio Streaming: Built-in Bluetooth 5.0 with A2DP support allows you to wirelessly stream stored music, music apps, and other audio content from your Bluetooth-enabled source device (such as your smartphone or tablet) to the Audioengine A5+ Wireless speaker system. You will continue to control your music and view song/artist information from your Bluetooth-enabled source device.

• aptX-HD Compatible:In addition to support for Bluetooth's standard SBC audio codec, the Audioengine speaker supports AAC for higher quality playback from Apple iOS devices, as well as support of aptX HD for 24-bit/48kHz audio playback from compatible devices. aptX HD supports 48kHz/24-bit LPCM audio over a Bluetooth wireless connection for a "better-than-CD" listening experience.
• 24-bit Upsampling DAC: The Audioengine A5+ Wireless features high signal-to-noise ratio due to the inclusion of a 24-bit high-performance upsampling DAC (AKM AK4396) for Bluetooth audio.
• Extended Range: The A5+ Wireless also has special circuitry and a precision-tuned antenna to extend the wireless range (up to 100'), providing much more versatility than other Bluetooth receivers.

Connections: Most of the A5+ Wireless system's connections are on the left speaker; the only terminals on the right speaker are the binding-post speaker level inputs for connection to the left speaker's corresponding outputs.

• Audio Inputs: The A5+ Wireless has two stereo audio inputs on the rear-panel of left speaker. The A5+ Wireless is fitted with a 3.5mm stereo minijack input & a stereo RCA input. There is no input selector switch, so both inputs are live simultaneously; if different signals are presented to both inputs, they are mixed together & both are played through the speakers.
• Binding Posts: Each speaker is equipped with a set of gold-plated 5-way binding post speaker terminals to connect the two speakers to one another.  Because the Audioengine 5+ speaker system includes built-in power amplifiers, do not connect the speaker terminals to the speaker outputs of a separate stereo receiver or amplifier.
• Variable Output: The A5+ Wireless includes a variable preamp audio output so you can connect a subwoofer, other Audioengine powered speaker, or an Audioengine wireless adapter to daisy-chaining music to other system around the house. This output is variable (adjustable) so the volume level can be controlled from the A5+ Wireless front-panel or remote control.

Simple Control: An IR remote control is provided for wireless operation of the A5+ Wireless powered speaker system. The remote control includes Volume up/down, Mute, and Sleep (power saving) mode functions. A front-panel rotary knob on the left speaker's front-panel controls the system's output volume. An on/off power switch is located on the rear-panel of the left speaker for the built-in amplifier.

Mounting & Placement Options: For the best soundstage & imaging, the speaker should be equidistant from the side walls & and a different distance from rear walls. Both speakers should also be equidistant from your primary listening position (and at least 6' apart). Tweeters should be at approximately eye-level in your most frequent listening locations. For the best bass response, Audioengine recommend at least 6" of clearance between the rear of the speakers and the wall behind them.

• High Density Foam Isolation Pad: Both speakers have a high-density foam isolation pad on the bottom for placement flexibility.
• 1/4"-20 Threaded Insert: Threaded 1/4-20 brass inserts are included on the bottom each speaker cabinet to provide the ability to attach the speaker to free-standing floor stands. These inserts, however, are not designed to support the full weight of the speakers and therefore should not be used with single-point wall or ceiling mounts.