General specifications
Amplifier type	Dual class AB monolithic
Power output	60W peak power total (15W RMS / 30W peak per channel), AES
Drivers	2.75″ aramid fiber woofers 3/4” silk dome tweeters
Inputs	3.5mm stereo mini-jack RCA USB Bluetooth
Outputs	RCA variable line-out
Mains voltages	100-240V 50/60Hz auto-switching
SNR	>95dB (typical A-weighted)
THD+N	<0.05% at all power settings
Crosstalk	<50dB
Freq. response	65Hz-22kHz ±2.0dB
Input impedance	10K ohms unbalanced
Protection	Output current limiting thermal over-temperature power on/off transient protection
Bluetooth specifications
Internal BT receiver	CSR8670
Input bit depth	16 bits
Bluetooth receiver type	Bluetooth 5.0
Supported codecs	aptX AAC SBC
Wireless operation range	Up to 100ft (30m) typical
Input data rate	Determined by Bluetooth
Wireless latency	~30 milliseconds (ms)
Weights and measures
Dimensions (each)	152.4mm Height 101.6mm Width 133.35mm Depth
Weight (LEFT speaker)	1.6kg
Weight (RIGHT speaker)	1.4kg
Shipping weight	4.6kg Per Pair
Shipping box dims	266.7mm Height 381mm Width 177.8mm Depth
USB specifications
Connector type	Micro USB
USB device class	type 1.1 and above
Internal D/A converter	CSR8670
Input bit depth	up to 16 bits native
Input sample rate	up to 48KHz native
Materials and construction
	18mm thick MDF cabinets  3/4″ (20mm) silk dome tweeters with neodymium magnets  2.75″ aramid fiber woofers with advanced voice coils
Finish options
	Satin Black Paint  Hi-Gloss White Paint  Hi-Gloss Red Paint
Environmental requirements
Operating temperature	0°C to 35°C
Non-operating temperature	-20°C to 45°C
Relative humidity	5% to 95% non-condensing
Custom components
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.
Efficient integrated design
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.
High-quality Bluetooth audio
The Bluetooth built into the A2+ Wireless speakers features aptX coding which is an advanced Bluetooth audio codec with very impressive sound. And even if your phone or tablet does not have aptX, the A2+ Wireless Bluetooth solution is backwards-compatible with SBC and AAC codecs, so you can wirelessly stream music from any Bluetooth-enabled device and still enjoy all your music. High-fidelity Bluetooth aptX that really works and sounds great. Extended wireless range. Most Bluetooth implementations have very limited range, typically within just one room. But with careful signal management circuitry and antenna tuning, we offer a superior solution that has up to 3 times the range of standard Bluetooth for multi-room use, with no degradation in audio quality.
Amplifier design
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 configuration 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.
Shielding
Both of A2+ Wireless speaker drivers are directly magnetically-shielded.
Driver designs
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 the woofer retains its shape when being driven at high levels.