Poly Studio A2 Audio Bridge w/ CAT6A and Mic and Mounting
PRODUCT DESCRIPTION
Poly Studio A2 Audio Bridge with CAT6A, Microphone Extension Cable and Mounting Plate (B22X2AA) - Local Warranty
Poly Studio A2 Audio Bridge — Up to 8 Table Microphones and 32 Audio Channels on One Device
The Poly Studio A2 Audio Bridge (B22X2AA) is the hub of Poly's Studio A2 room audio system. It receives audio and audio control for HP Poly video systems, converting between the A2B microphone bus and Poly StudioNet audio over standard Ethernet cabling. One bridge supports up to eight Studio A2 table microphones distributed across four independent daisy-chains, for up to 32 audio input channels. For Singapore integrators building long-table boardrooms and training rooms on a Poly Studio G62 or X-Series system, this is the device that makes room-wide microphone coverage a structured-cabling exercise rather than a cabling compromise.
Four Daisy-Chains, Eight Microphones, 32 Channels
Four A2B bus ports feed four independent microphone chains, so a long or L-shaped table can be covered from sensible directions rather than one long serial run. With eight microphones at four cardioid elements each, the bridge handles up to 32 audio input channels.
PoE+ and PoE++ Powered, One Ethernet Run
The bridge takes power over Ethernet as PoE+ or PoE++, compatible with IEEE 802.3at and 802.3bt Class 4, 5, 6 and 8. It draws 8 W itself and can power all eight table microphones under PoE+ Class 4. HP requires CAT6A shielded twisted pair (STP) between the PoE injector and the bridge.
Discreet, Magnetically Mounted and Built with Recycled Content
At 147 x 103 x 24 mm and 330 g, the bridge mounts magnetically to a wall-mounted metal plate secured with four screws — out of sight under a table or behind a display. HP states it contains at least 45% recycled plastic content in paper-based packaging.
Poly Studio A2 Audio Bridge Datasheet — Technical Specifications
General
| Product | HP Poly Studio A2 Audio Bridge w/ CAT6A and Mic Extension Cable and Mounting Plate |
| Part number | B22X2AA (retail order code B22X2AA#AC3) |
| Manufacturer | Poly (HP) |
| Function | Receives audio and audio control for HP Poly video systems; converts A2B to StudioNet audio and StudioNet audio to A2B |
| Microphone support | Up to 8 Studio A2 table microphones, distributed across four independent daisy-chains |
| Audio channels | Up to 32 audio input channels |
| Colour | Black |
| Management | Poly Lens |
| Sustainability | Contains at least 45% recycled plastic content; paper-based packaging |
| Manufacturer warranty | HP standard one-year limited warranty |
| Warranty | Local Warranty (Singapore) |
Audio and connectivity
| Ports | 1 x RJ-45 Ethernet port; 4 x A2B bus ports |
| Network | 1 x 10/100/1G Ethernet |
| Protocol | Poly StudioNet over standard Ethernet cabling; A2B audio bus standard on the microphone side |
| Microphone connectors | Phoenix connectors to the microphones; JST for daisy-chaining |
| Required cabling | CAT6A shielded twisted pair (STP) between the PoE injector and the Audio Bridge |
Power
| Power over Ethernet | PoE+ / PoE++, compatible with IEEE 802.3at and 802.3bt Class 4, 5, 6 and 8 |
| PoE classes (HP wording) | PoE+ Type 2 Class 4; PoE++ Type 3 Class 5; PoE++ Type 3 Class 6; PoE++ Type 4 Class 8 |
| Bridge consumption | 8 W |
| Microphone powering | Powers all 8 table microphones under PoE+ Class 4 |
| PoE injector input | 100–240 V, 2 A, 50/60 Hz external power supply |
Design and environment
| Dimensions | 147 x 103 x 24 mm (5.79 x 4.06 x 0.94 in) |
| Weight | 330 g |
| Package dimensions / weight | 327 x 213 x 89 mm; 1,800 g |
| Mounting | Magnetic mount; mounts to a wall-mounted metal plate with four screws |
| Operating temperature | 0–40 °C (32–104 °F) |
| Humidity | 15–80% operating; 5–95% non-operating |
| Operating altitude | 3,048 m (10,000 ft) |
HP does not publish whether a PoE injector is included with this SKU — it is not listed in the package contents, so plan on sourcing one separately unless SourceIT confirms otherwise.
Compatibility & Software Support
The Audio Bridge sits between the A2B microphone bus and Poly StudioNet audio over standard Ethernet cabling, converting in both directions and carrying audio control as well as audio.
Compatible Poly video systems and maximum Studio A2 table microphones
| Poly Studio G62 | Up to 8 Studio A2 table microphones |
| Poly Studio X72 and Poly Studio V72 | Up to 4 Studio A2 table microphones |
| Poly Studio X52 and Poly Studio V52 | Up to 4 Studio A2 table microphones |
| Poly Studio X32 | Up to 2 Studio A2 table microphones |
| Poly Studio V12 | 1 Studio A2 table microphone, connected directly — no Audio Bridge required |
HP states the Studio A2 range is not backward compatible with the Poly Studio X70, X50 or X30 or with the G7500. For expansion microphones on those systems, use the Poly Table Expansion Microphone for Studio X Series or the Poly IP Table Microphone Array for G7500 instead.
Certification: HP does not state Microsoft Teams or Zoom certification for this accessory. Platform certification attaches to the host video system it is connected to.
Management: the bridge and its microphone chains are configured and monitored through Poly Lens alongside the host video system.
Package Contents & Studio A2 Ordering Information
In the box (HP, verbatim):
- Poly Studio A2 Audio Bridge
- Mounting plate
- CAT 6A cable (3.66 m)
- Microphone extension cable (8 m)
- Safety guide
- Quick start guide
- Warranty card
Poly Studio A2 range — ordering information
| Studio A2 Audio Bridge w/ CAT6A, Mic Extension Cable and Mounting Plate | B22X2AA |
| Studio A2 Audio Bridge — TAA variant | B22X3AA |
| Studio A2 White Table Microphone w/ Mounting Plate and I/O cables | B22X4AA |
| Studio A2 White Table Microphone — TAA variant | B22X5AA |
| Studio A2 Black Table Microphone w/ Mounting Plate and I/O cables | B22X6AA |
| Studio A2 Black Table Microphone — TAA variant | B22X7AA |
Related Poly expansion microphones for older systems
| Poly Table Expansion Microphone for Studio X Series | 2200-87840-001 / 875M6AA |
| Poly IP Table Microphone Array for G7500 | 2200-85250-001 / 874R3AA |
| Poly IP Ceiling Microphone Array (white) for G7500 | 2215-85360-001 / 875S1AA |
Datasheet & Downloads
- HP Poly Studio A2 — product page (HP Singapore)
- HP Poly Studio A2 — product page (global)
- HP-hosted PDF — HP Poly Studio A2 Administrator Guide
- HP product-specifications page — Studio A2 Audio Bridge (B22X2AA)
- HP official spec sheet PDF — Studio A2 Audio Bridge (B22X2AA)
Note for Singapore buyers: HP's /sg-en/ site hosts the Studio A2 product page linked above, but not the accessory product-detail catalogue — those /sg-en/ URLs return 404. The Ireland locale page linked here serves the identical global specification table.
Frequently Asked Questions — Poly Studio A2 Audio Bridge
What does the Studio A2 Audio Bridge actually do?
It receives audio and audio control for HP Poly video systems, converting between the A2B microphone bus and Poly StudioNet audio over standard Ethernet. In practice it is the box that lets you hang up to eight Studio A2 table microphones off one Poly Studio system.
How many microphones can one bridge support?
Up to eight Studio A2 table microphones, distributed across four independent daisy-chains, for up to 32 audio input channels. The host video system may impose a lower limit — see the compatibility table above.
Which Poly systems is it compatible with?
Poly Studio G62, Studio X72 and V72, Studio X52 and V52, and Studio X32. HP states it is not backward compatible with the Studio X70, X50 or X30, or with the G7500.
Do I need the bridge if I only want one microphone?
On most systems, yes. The exception is the Poly Studio V12, which HP documents as connecting a single Studio A2 table microphone directly with no bridge required.
How is it powered, and what cable do I need?
Power over Ethernet — PoE+ or PoE++ compatible with IEEE 802.3at/bt Class 4, 5, 6 and 8. The bridge draws 8 W and can power all eight microphones under PoE+ Class 4. HP requires CAT6A shielded twisted pair (STP) between the PoE injector and the bridge; a 3.66 m CAT6A cable is in the box.
Is a PoE injector included?
HP does not list one in the package contents, so assume not and budget for one. Contact SourceIT if you would like an injector quoted alongside.
Is it certified for Microsoft Teams or Zoom?
HP does not state platform certification for the A2 accessories. Certification applies to the host video system — the Studio G62, X-Series or V-Series bar the bridge is connected to.
Does this come with local warranty in Singapore?
Yes. Every Poly Studio A2 Audio Bridge sold by SourceIT comes with local Singapore warranty and a GST invoice.
