TOA L-01S T – 900 Series Line Matching Module

Product Overview

The TOA L-01S T is a 600-ohm transformer-balanced line matching input module for the TOA 900 Series modular amplifiers and mixers. It gives integrators a clean way to interface 600-ohm line sources to a 900 Series chassis through a removable terminal block. As a TOA 900 Series line matching module, the L-01S T is well suited to telephone-paging interfaces, legacy 600-ohm equipment, and balanced distribution feeds. It expands a commercial audio head-end with proper impedance matching and noise rejection.

The L-01S T plugs into an available module slot on a compatible TOA 900 Series frame, adding a matched line input without external hardware. Its line-matching transformer is referenced to 600 ohms, the classic impedance for telephone and broadcast-style interconnects, so it interfaces cleanly with paging gateways and older balanced sources. The transformer also provides galvanic isolation that breaks ground loops and rejects common-mode noise across long cable runs in a distributed system. A removable terminal block lets technicians pre-terminate field wiring and service the card without disturbing neighboring modules. Because the module is native to the 900 Series, power and routing come from the host chassis, keeping the install tidy. Common applications include connecting a telephone paging port, a remote balanced feed from another building zone, or a 600-ohm processor output into a background-music and paging amplifier. The result is a quiet, properly matched input that protects program quality. For contractors who standardize on TOA, it is a dependable interface card.

Key Features

• 600-Ohm Line Matching — Interfaces classic 600-ohm balanced sources such as telephone-paging ports and legacy equipment with correct impedance.
• Transformer Isolation — Breaks ground loops and rejects common-mode noise for hum-free audio across long distributed runs.
• 900 Series Plug-In Module — Installs into a TOA 900 Series mixer-amplifier slot and draws power and routing from the host frame.
• Removable Terminal Block — Allows pre-wiring and quick field termination while keeping adjacent modules undisturbed during service.
• Head-End Integration — Adds a matched line input to commercial paging and background-music systems built on TOA modular electronics.