Williams AV IMA-121 Matrix Receiver Amplifier Gen 2, Amp Only
Williams AV | SKU: WS-IMA121
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Most orders placed before 10:00am PST will most likely ship out the same day. We work hard to process and ship your items quickly so you can start enjoying them as soon as possible.
Found a lower price? Contact us and we'll see if we can match it! Price match will only be applied to products sold and shipped by authorized retailers of the brand.
No restocking fee will be charged when you opt for store credit. Exclusions apply.
Condition: New
Williams AV Matrix Receiver Amplifier Gen2, Amp Only
The Williams AV Matrix™ Receiver Amplifier (Gen2) “Amp Only” is a compact, robust sound‑field system component designed for classroom or multi-zone audio installations. It delivers versatile input/output options and supports up to two infrared wireless microphones without including mics, speakers, or wall control panels.
This Class‑D amplifier produces 50W RMS across two channels (25W each) and includes features such as Bluetooth-enabled wall-panel integration via RS‑232 control, page override with pass‑through, security alerts, teacher priority, and bass/treble equalization. Its slim form factor allows for discreet mounting in classrooms or AV closets.
Key Features
- Amplifier Power: Two digital Class‑D channels, 25W RMS each (50W total)
- Receiver Input: Two infrared wireless microphone receivers with individual volume control
- Line Inputs: Two stereo line/aux inputs (3.5mm) with +10dB gain control
- Line Output: One dual‑mono assistive listening output (3.5mm) with gain control
- Paging Integration: Page override with pass‑through via 2‑pin Phoenix; selectable for 100V, 70V, or 25V input
- Security Alert: Contact‑closure input (COM, N/O, N/C)
- Teacher Priority: Mutes line inputs instantly when mic is active
- Equalization: Bass/Treble control, ±12dB
- Wall‑Panel Control: RS‑232 interface (RJ‑45) with on/off switch for remote adjustment
- External Sensor Inputs: Two RCA connectors for infrared sensors (coverage up to 1,600sqft, 50ft line‑of‑sight)
Technical Specifications
- Dimensions: 1.5″ (H) × 7.5″ (W) × 4.25″ (D) (38.1 mm × 190.5 mm × 107.95 mm)
- Weight: 1lb5oz (≈1.31lb; ~0.59kg)
- Amplifier Output: 2 ×25W RMS (50W total)
- Line Inputs: Two 3.5mm stereo inputs with +10dB gain control
- Line Output: One 3.5mm dual‑mono with gain control
- Page Input: 2‑pin Phoenix (selectable 100V / 70V / 25V) with sensitivity control
- Security Alert Input: Contact‑closure (COM, N/O, N/C)
- Equalizer: Bass/Treble ±12dB
- RS‑232 Control: RJ‑45 wall‑panel interface; includes on/off switch
- Sensor Inputs: Two RCA for external microphones; coverage up to 1,600sqft, 50ft line‑of‑sight
- Receiver Input Type: Infrared FM, wide‑band; frequencies Ch.A2.08MHz, Ch.B2.54MHz; tone 32.768kHz; de‑emphasis 50µs
- Audio Performance: Frequency response 40Hz–18kHz (±3dB); S/N ratio >65dB; THD <1% @1kHz
- Power Supply: 19VDC / 3.4A; CE, CSA, and UL listed
What's Included
- 1x Matrix™ Receiver Amplifier (Gen2) – Amp Only (no microphones, speakers, or wall panel included)
