Yes, an AtlasIED AA120G Bluetooth connection is the easiest in this archive: inputs 5 and 6 are summed RCA jacks, so the receiver plugs straight in. Zone 1 delivers 120 watts on 4 ohm, 25V, 70V and 100V, inputs 1-4 switch between mic and balanced line, and the VOX and contact-closure muting matrix ducks music the moment a page arrives.
Figures on this page were checked October 2026. Every table row carries its source.
Spec snapshot
| Item | Value | Notes | Source |
|---|---|---|---|
| Zone 1 output | 120 W | 4 Ω, 25V, 70V and 100V; the AA240G sibling doubles the power | OM |
| Zone 2 output | 1 W @ 8 Ω / 1.5 V @ 600 Ω | A secondary-zone speaker, a music-on-hold feed or a link to a second amplifier | OM |
| Inputs 1-4 | Mic / balanced line switchable | Per-input level controls with signal indicators | OM |
| Inputs 5-6 | RCA, summed | Input 5 fixed 300 mV; input 6 selectable via DIP switch | OM |
| Muting | VOX send on 1, mute receive on 2-6 | Voice-activated or contact closure, per-input switches | OM |
| Signal to noise | >55 dB mic/line/tel, >75 dB AUX | Referred to rated power, master at minimum | OM |
| THD+N | <0.5% | At rated power, 1 kHz | OM |
| Processing access | Pre-output balanced, amp-in insert | Bridge in/out bus combines amplifiers; hi-cut filter serves paging horns | OM |
| Power | Switch-mode, 120-240 V | Detachable IEC cord; output terminals wear a non-touch cover | OM |
Source code: OM = AtlasIED AA120G & AA240G Owner's Manual, accessed 2026-10-08.
Where to connect
Inputs 5 and 6, summed RCA
RecommendedThe manual's key features call inputs 5 and 6 RCA summed, and input 5's fixed 300 mV sensitivity sits exactly in consumer-line territory, so a Bluetooth receiver with an RCA output is a plug-and-raise-the-knob job. Input 6's DIP-selectable sensitivity covers hotter sources.
Inputs 1-4 as balanced line
Good alternativeThe first four inputs switch between microphone and balanced line, which is the right lane for a receiver with a balanced output on a longer run. The mic position keeps the VOX muting lane open for paging microphones.
Remote level as the music control
Install trickThe remote level control can be assigned to input 6 or to the master, per the key features, so a wall potentiometer can own the music level while the rack holds its settings.
Set up in three steps
- Land the receiver on input 5 or 6
RCA to RCA, then set input 6's DIP sensitivity if the source runs hot. Inputs 2-6 switch to mute receive so the page lane can duck them.
- Choose the output scheme
Zone 1 screws to 4 ohm, 25V, 70V or 100V per the distributed design, and the non-touch cover goes back on over the terminals.
- Tone and test
Bass and treble trim the room, the hi-cut filter stays out of music work, and a test page confirms the VOX mute path ducks the music.
Quirks and notes
- The AA120G sits beside discontinued siblings (verified): the earlier AA120 and AA120M appear on AtlasIED's own product index as discontinued, obsolete SKUs, so rack inventories mix all three generations.
- 100V is on the dial (verified): this is the only amplifier in this archive's constant-voltage batch whose Zone 1 serves 100-volt lines alongside 25V and 70V, which matters for international sites.
- Muting is configurable, not fixed (verified): input 1 sends VOX; each of inputs 2-6 selects mute receive by VOX or contact closure, so the duck chain is programmed per input rather than hard-wired to one aux.
- The hi-cut filter has a job description (verified): the key features attach it to paging horns, which is a speech-intelligibility filter rather than a music control.
- No Bluetooth anywhere in the manual (verified): the owner's manual contains no Bluetooth function; the receiver at inputs 5 or 6 is the wireless.
What you need
- Bluetooth receiver with an RCA output for inputs 5/6, or a balanced output for inputs 1-4
- One RCA cable, plus a small screwdriver for the DIP switches and output terminals
- Speaker wiring for 4 ohm, 25V, 70V or 100V on Zone 1
- Optional wall potentiometer wired to the remote level control input
FAQ
Plug the receiver's RCA output into input 5 or input 6 on the rear panel and raise that input's level control. Input 5 runs a fixed 300 mV sensitivity and input 6 gets a selectable sensitivity through a DIP switch, per the manual, and both are summed inputs that mix with everything else.
No. The owner's manual carries no Bluetooth function anywhere; the wireless half arrives with the receiver you wire to inputs 5 or 6, which is a thirty-second job with an RCA cable.
Zone 2 is a small separate feed, rated 1 W at 8 ohms or 1.5 V at 600 ohms, for a secondary-zone speaker, a music-on-hold feed or a link to another amplifier, while Zone 1 carries the full 120 watts on 4 ohm, 25V, 70V or 100V.
Input 1 has VOX send and inputs 2 through 6 have switch-selectable mute receive via VOX or contact closure, per the key features list. Set the music inputs to mute receive and any page on input 1 ducks them automatically, no external switch needed.
blafili B3 Bluetooth Audio Receiver
RCA output for the summed inputs plus XLR, optical and coaxial when the rack grows, on the QCC5125 and ES9018K2M DAC platform.
- AtlasIED AA120G & AA240G Owner's Manual (20 pages): Key Features list (Zone 1 output 120 W on 4 Ω/25V/70V/100V; Zone 2 output 1 W @ 8 Ω or 1.5 V @ 600 Ω; inputs 1-4 mic/balanced line switchable; input 5 & 6 RCA summed; input 1 VOX send; inputs 2-6 switch-selectable mute receive via VOX or contact closure; pre-output balanced; amp-in insert; bridge in/out bus; hi-cut filter for paging horns; global switch-mode 120-240 V supply), input 5 fixed 300 mV sensitivity with input 6 selectable via DIP switch on Switch B, signal-to-noise mic/line/telephone over 55 dB and AUX 4/5/6 over 75 dB, THD+N under 0.5% at rated power 1 kHz, IEC power inlet, output screw terminals with non-touch cover, and the applications note for distributed business paging and BGM. atlasied.com/vcd/ATS005756-AA120G-AA240G-Owners-Manual.pdf, accessed 2026-10-08