ABH-4
Harman Kardon ABH‑4 – 4‑Room A‑BUS® Expansion Hub
The Harman Kardon ABH‑4 is a 4‑zone A‑BUS® expansion hub designed to extend multi‑room audio systems to four or more rooms. It connects directly to any Harman Kardon A‑BUS/Ready® receiver or can add A‑BUS capability to traditional receivers via their multiroom or tape outputs. Each zone connects with a single Cat5/5e cable, enabling simple installation and reliable audio distribution throughout the home.
Key Features
- 4‑room A‑BUS® expansion hub
- Compatible with Harman Kardon A‑BUS/Ready® receivers
- Adds A‑BUS functionality to non‑A‑BUS receivers via multiroom/tape outputs
- Single Cat5/5e cable run per zone
- Supports AB‑series amplified in‑wall modules (AB‑1, AB‑2, etc.)
- Shelf‑mount or wall‑mount installation (keyhole slots)
- External power supply included
Specifications
- Zones: 4 A‑BUS outputs
- Inputs:
- A‑BUS Expansion In (RJ‑45)
- Stereo audio inputs for non‑A‑BUS receivers
- Cabling: Cat5/5e UTP
- Mounting: Shelf or wall (keyhole mounts)
- Use case: Expands multiroom audio to 4+ rooms
- Power: External power supply (included)
What It Does
- Distributes audio and control signals to up to four A‑BUS keypad modules
- Allows multi‑room audio even with receivers that lack native A‑BUS support
- Provides clean, centralized wiring for whole‑home audio systems
