Overview
The Ubiquiti UPL-AMP-B-US UniFi PowerAmp is a 2.1-channel Class-D integrated amplifier designed for high-fidelity multi-zone audio streaming. The black PowerAmp combines stereo speaker amplification with network connectivity, HDMI eARC, analog RCA inputs, subwoofer output, and integrated wireless music streaming.
The amplifier delivers up to 130W per channel at 8Ω or 260W per channel at 4Ω under the specified two-channel conditions. It can drive a pair of passive speakers while providing a dedicated RCA output for an active subwoofer.
Audio Performance and Connectivity
The UPL-AMP-B-US provides one HDMI eARC input and two RCA analog inputs for connecting audio sources. HDMI audio supports Dolby Atmos, Dolby TrueHD, Dolby Digital, Dolby Digital Plus, stereo PCM, multichannel PCM, and Dolby multichannel PCM formats. HDMI CEC is supported for compatible connected equipment.
Speaker connections are provided through two speaker terminal pairs with included banana plugs. A dedicated RCA subwoofer output allows an active subwoofer to be added to the 2.1-channel system.
Network and Streaming
The PowerAmp includes two Gigabit Ethernet RJ45 ports and dual-band Wi-Fi 5 connectivity. Networked audio can be streamed using AirPlay 2 and Spotify Connect, with Soundtrack Your Brand also supported. The UniFi Play mobile application provides setup, configuration, remote control, and audio management on supported iOS and Android devices.
Multi-Zone Audio
Multiple UPL-Amp units can be grouped for distributed audio applications. Ubiquiti specifies grouping of up to 32 PowerAmp units on a single network, allowing separate amplifiers to participate in a coordinated multi-zone audio deployment.
Key Features
- 2.1-channel Class-D integrated amplifier with up to 130W per channel at 8Ω.
- Up to 260W per channel at 4Ω under two-channel driven conditions.
- HDMI eARC, two RCA analog inputs, speaker terminals, and RCA subwoofer output.
- Dual-band Wi-Fi 5 and two Gigabit Ethernet ports for network connectivity.
- AirPlay 2, Spotify Connect, Soundtrack Your Brand, and UniFi Play app support.
Applications
The UPL-AMP-B-US is suited to home and commercial audio installations requiring networked amplification for passive speakers. Its HDMI eARC input supports television and display audio, while network streaming and multi-unit grouping provide options for distributed music systems across multiple rooms or zones.
Physical Design and Control
The PowerAmp uses a desktop form factor with a 1.43-inch rotary knob incorporating a touchscreen and an LED status ring. Two units can be positioned side-by-side in equipment-rack installations, providing a compact approach to multi-amplifier deployments.
DC Supplies Product Note
The UPL-AMP-B-US is the black US PowerAmp variant. Its universal 100–240V AC input allows operation across standard mains-voltage ranges, while the model's audio configuration is centered on two-channel passive-speaker amplification with a separate active-subwoofer output.
Specifications
| Specification | Details |
|---|
| Brand | Ubiquiti |
| Part Number / MPN | UPL-AMP-B-US |
| Product Type | Integrated Speaker Amplifier |
| Product Family | UniFi PowerAmp |
| Model | UPL-Amp |
| Color | Black |
| Audio Channels | 2.1 |
| Amplifier Class | Class D |
| Continuous Power per Channel | 130W at 8Ω; 260W at 4Ω |
| Speaker Impedance | 4–8Ω |
| THD+N | <0.05% at 1kHz, 8Ω; <0.09% at 1kHz, 4Ω |
| Audio Inputs | 1 × HDMI eARC; 2 × RCA analog L/R |
| Audio Outputs | 2 × speaker terminal pairs; 1 × RCA analog subwoofer output |
| HDMI | HDMI eARC input with HDMI CEC |
| Supported Audio Formats | Dolby Atmos, Dolby TrueHD, Dolby Digital, Dolby Digital Plus, stereo PCM, multichannel PCM, Dolby multichannel PCM |
| Ethernet | 2 × Gigabit Ethernet RJ45 |
| Wi-Fi | Wi-Fi 5 (802.11a/b/g/n/ac), dual-band |
| Streaming | AirPlay 2, Spotify Connect, Soundtrack Your Brand |
| Mobile App | UniFi Play for iOS and Android |
| Maximum Power Consumption | 17W |
| AC Input | 100–240V AC, 2.5A maximum, 50/60Hz |
| Mounting | Desktop |
| Display / Control | 1.43-inch rotary knob with touchscreen |
| LED | LED status ring |
| Maximum Grouping | Up to 32 PowerAmps |
| Dimensions | 217 × 63.7 × 236.8 mm (8.5 × 2.5 × 9.3 in), including knob |
| Weight | 2.4 kg (5.3 lb) |
| Operating Temperature | -5°C to 40°C (23°F to 104°F) |
| Operating Humidity | 5% to 90% non-condensing |
FAQs
How much power does the UPL-AMP-B-US provide?
The PowerAmp provides 130W per channel at 8Ω and up to 260W per channel at 4Ω under the specified two-channel driven conditions.
Can the PowerAmp connect directly to a TV?
Yes. It includes an HDMI eARC input for compatible TVs and displays, with HDMI CEC support and compatibility with supported Dolby and PCM audio formats.
Can I connect a subwoofer?
Yes. A dedicated RCA analog subwoofer output is provided for connection to an active subwoofer.
Does the PowerAmp support wireless music streaming?
Yes. It supports AirPlay 2 and Spotify Connect over its network connection, along with Soundtrack Your Brand.
How many PowerAmp units can be grouped?
Ubiquiti specifies grouping of up to 32 PowerAmp units on a single network for multi-zone audio management.
Does the PowerAmp have Ethernet as well as Wi-Fi?
Yes. The amplifier provides two Gigabit Ethernet RJ45 ports in addition to dual-band Wi-Fi 5.
