Tech Specs

B2 Home Music System w/ Bluetooth aptX (A2 All-in-One)

If youโ€™re looking for top-notch sound quality and flexible connectivity options, the B2 is the system for you. Also known as the A2 All-in-One, the B2 is a portable system that delivers high-fidelity stereo sound and connects to your music in seconds from any app or device. With wired and wireless inputs, the B2 connects quickly and easy via Bluetooth aptX or a single input for your turntables, tape decks, or other analog sources.

Pro Tipย Maximize the B2’s sound quality by connecting through Bluetooth, utilizing the B2โ€™s built-in digital to-analog converter.

Quickstart Guide

Technical Specifications

General Specifications

Type
Powered Bluetooth aptX speaker

Amplifier Type
Class D

Rated Power Output:
15W RMS per channel (measured in compliance with 16 C.F.R. ยง 432.3)
Peak Power Output: 30W per channel (AES)
Total Peak Power Output: 60W (AES)

Drivers
2.75โ€ aramid fiber woofers

0.75โ€œ Silk dome tweeters

Inputs
3.5 mm stereo mini-jack, Bluetooth

Outputs
N/A

Input Voltages
100-240 V 50/60 Hz auto-switching

SNR
>95 dB (typical A-weighted)

THD+N
Less than 0.05% at all power settings

Crosstalk
N/A

Frequency Response
65 Hz-22 kHz ยฑ2.0 dB

Frequency Response w/ Bass Reduction Switch selected
N/A

Analog Input Impedance
10K ohms unbalanced

Nominal Impedance
N/A

Input Impedance
N/A

Crossover Frequency
N/A

Protection
Output current limiting, thermal over-temperature, power on/off transient protection

Power Consumption
Idle: 10W

Standby Consumption
N/A

Phase
N/A

Recommended Amplifier Power
N/A

Battery Life
N/A

Battery Charge Time
N/A

Bluetooth Specifications

Internal D/A Converter
PCM 5102

Internal BT Receiver
N/A

Input Bit Depth
16 bit

Bluetooth Receiver Type
Bluetooth 5.0

Supported Codecs
aptX, AAC, SBC

Supported Bluetooth Profiles
N/A

Wireless Operation Range
Up to 100 ft (30 m) typical

Input Data Rate
Determined by Bluetooth

Wireless Latency
~30 milliseconds (ms)

Usb Specifications

Connector Type
N/A

USB Device Class
N/A

Input Bit Depth
N/A

Input Sample Rate
N/A

Headphone Amp Specifications

Headphone Amp Type
N/A

Full-scale Headphone Output Level
N/A

Output Impedance
N/A

Recommended Headphone Impedance Level
N/A

Optical Specifications

Internal D/A converter
N/A

Input Bit Depth
N/A

Sample Rate
N/A

Weights And Measures

Dimensions (HWD)
4.25โ€(10.8 cm) x 12.25โ€(31.1 cm) x 5.50โ€(14 cm)

Weight
6 lb (2.7 kg)

Total Shipping Weight
10 lb (4.6 kg)

Shipping Box Dimensions (LWH)
16โ€ (40.6 cm) x 7.5โ€ (19.1 cm) x 10.5โ€ (26.7 cm)

Environmental Requirements

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

Materials And Construction

0.7″ (18 mm) thick MDF cabinets with real wood veneer
0.75″ (20 mm) silk dome tweeters with neodymium magnets
2.75″ (70 mm) aramid fiber woofers with advanced voice coils

Cabinets

To minimize unwanted resonances and distortion, Audioengine cabinets have thick high-resin MDF walls with extensive internal bracing. Heavy internal sound-damping material is also used to reduce unwanted sound reflections inside the cabinet. The B2 cabinet is a unique design in that it has dual sub-enclosures to prevent cross-interference, while each side contains its own tuned, front-port bass slot.

Furniture Grade Finishes

The B2 cabinet is available in several handsome finishes, including walnut and zebrawood veneers as well as satin black paint, offering a wide choice for complementing room furnishings. Also included is a detachable grill that adds further aesthetic advantages as it’s firmly held in place with hidden neodymium magnets for a clean look.

Custom Components

Audioengine designs and manufactures our own tweeters, woofers, and other critical components. In other words, these are not โ€œbox builtโ€ 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.

Based On Studio Monitor Designs

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 โ€œnearfieldโ€ studio monitors, we do carry over much of the same higher-end technology, components, and design philosophy for all Audioengine speaker systems.

High-quality Bluetooth Audio

The Bluetooth built into the B2 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 B2 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-range wireless.
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.. 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.

24 bit DAC
The B2 Bluetooth receiver and USB input both utilize the PCM 5102 DAC, widely known for its low-noise and high-fidelity. The PCM 5102 is used as an upsampling DAC and will pad all bit depths to 24 bit, achieving a higher signal-to-noise ratio and lower noise floor. Due to the high signal-to-noise specs of the PCM 5102, the fact that digital signal is upsampled to 24 bit as well as the added benefit of onboard triple redundancy power source conversion and filtering the B2 Bluetooth implementation presents impressive low noise and low distortion characteristics with a noticeable improvement over other Bluetooth devices.

Amplifier Design

The class D amplifiers in Audioengine speaker systems are very conservatively-rated analog designs. Each subsystem is tuned together for all models, providing a much more efficient system requiring less power than passive speakers and separate amplifiers. An auto-standby idle mode is also included to conserve power when youโ€™re not playing music.

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 custom 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 very robust, therefore speaker grills arenโ€™t needed. In other words, we did our homework on the speaker drivers and they will sound and look great after many years of use.

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.

Quickstart Guide

B2 Quick Setup

Step 1:  Connect the Bluetooth antenna to the B2 rear panel.  The B2 will not function without the antenna connected.

Step 2: Connect the power cable to the b2 rear panel and plug the power cable into an AC outlet.

Step 3: Turn on the B2 power switch, which is located on the rear panel.  B2 will automatically go into pair mode and the Pair button on the B2 rear panel should be flashing.

Step 4: On your device, turn on Bluetooth and go to Bluetooth preferences.

Step 5: Select “Audioengine B2” to pair and connect.  The Pair indicator on the B2 rear panel should be solid.

Step 6: Play your music and adjust volume levels on B2 and your device.

Repeat steps 3 thru 6 to add additional devices.  B2 can connect only one device at a time, however it will remember up to six devices.

To disconnect B2 from a paired device and put B2 back into pair mode, press and hold the Pair button on the B2 rear panel until the indicator begins flashing.


For the full setup guide, download the attached PDF:
B2 quickstart guide


B2 Setup Video

Troubleshooting

B2 Troubleshooting Tips

The following troubleshooting tips can help diagnose and correct most concerns with the B2. We have attempted to make this list as comprehensive as possible, so some of these may not apply to your issue, but please go through each tip.

If the indicator on the B2 rear panel is not illuminated, then try these tips:

  1. If the indicator light on the B2 rear panel is not illuminated, then make sure the AC power cord is connected to the rear panel and to a working AC power outlet.
  2. Verify that the B2 rear panel power switch is in the ON position.

If the indicator light on the B2 rear panel is on but you are experiencing an audio-related issue, try these tips:

  1. Check that the cables from your audio sources to the speaker are properly connected. Confirm this by unplugging the audio cables and then reconnecting.
  2. Verify that the volume/power control on the rear panel is not turned all the way down or powered off (we recommend setting the volume to at least the 10 oโ€™clock position).
  3. Make sure the volume is up on your media players, internet radio, master control, device volume, etc. and that the balance control is centered.
  4. Decrease the volume of the input audio source and increase the volume of the B2 speaker.
  5. Try using different audio input sources and/or devices to see if the problem follows.
  6. If your input source has its own EQ, please make sure the low end is at a moderate level as having too much bass in your signal can cause distortion.
  7. If you are using a wireless adapter, preamp, or external DAC, remove these (temporarily) and connect the audio source directly to the B2 speaker.
  8. Move your speaker to a different location to see if something is causing interference in the current setup.ย  Something as simple as a wireless internet router, cordless or mobile phone, or halogen lamp near the speaker can cause interference.

B2 troubleshooting tips – Bluetooth

  1. Verify that the B2 speaker is connected to power and the rear panel power switch is turned on.ย  If you havenโ€™t already, power-cycle your speaker by switching it off and back on.
  2. If your B2 is already connected to a device via Bluetooth, the Bluetooth Pair light on the rear panel of the left speaker will be on and solid (note that if your B2 has been idle and not connected to a device for more than 2 minutes, the Pair light will automatically turn off).ย  Tap the Pair button and it should begin blinking (or pair to your B2 using your source device, and the LED will go from off to on and solid).
  3. Check to make sure your source device (computer, tablet, phone, etc) and all audio apps are running the most up-to-date version of software available.ย For Mac OS users, be sure to check the App store to see if there’s a newer version of Mac OS you could be running.
  4. Try playing audio from more than one application on your phone/tablet, or computer.
  5. Try disconnecting from and forgetting the B2 through your deviceโ€™s Bluetooth settings and then re-pair to the B2.
  6. Try using a different device with your B2 to see if the issue follows.ย  Also be sure to test your B2 using the analog input as well.
  7. If possible, try your B2 in a different location to see if something is causing an issue in the current setup.ย  Something as simple as a wireless internet router, cordless or mobile phone, or halogen lamp near the speakers may be causing interference in your setup.

FAQ’s

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