Instruction Manual for Taga Harmony TCA Series 100V Multizone Mono Mixing Amplifier

Quick guide from the manual

The Taga Harmony TCA Series amplifiers are designed for commercial installations such as restaurants, shops, and conference rooms. They support 100V/70V and low-impedance speaker systems. Key operational requirements include ensuring proper ventilation, correct speaker impedance matching, and avoiding simultaneous connection of different speaker types (100V/70V and low-impedance).

Safety Instructions

• Indoor Use Only: This amplifier is intended for indoor environments.
• Ventilation: Do not block cooling slots. Ensure at least 5cm of free space around the unit.
• Electrical Safety: Do not open the cover. Refer servicing to qualified personnel.
• Connection Safety: Always switch off the amplifier before connecting speakers to avoid damage.
• Environment: Keep away from moisture, heat sources, and liquids.

Front and Rear Panel

The front panel features the Power switch, status LEDs (ON, SIG, CLP), Zone Volume regulators, Treble/Bass controls, Line input mixing regulators, Microphone mixing regulators, and the Chime button. The rear panel contains the ventilation fan, MIC1 input, LINE inputs (RCA), MONO OUT, and screw-in speaker connectors for Zone Outputs and Additional Speaker Output.

Rack Installation

The amplifier is designed for 19-inch rack mounting and requires 2 rack spaces (89mm). Secure the unit using the four mounting holes. It is recommended to use additional lateral rails or a bottom plate for stability. Ensure hot air is dissipated to prevent overheating.

Speaker Connection

The amplifier supports two main connection options: Additional Speaker Output (for a single zone) and Zone Outputs (for multiple zones). Warning: Never connect both options simultaneously. Use 10AWG cables for runs longer than 20 meters. Ensure correct polarity (COM to negative/black, 100V/70V/Ω to positive/red).

Hooking up the Amplifier

1. Ensure the amplifier is turned off and the power cable is disconnected.
2. Set all volume regulators (ZONE, LINE, MIC) to MIN (counter-clockwise).
3. Connect speakers to the appropriate terminals (100V, 70V, or low-impedance).
4. Connect audio sources (CD player, network streamer) to the LINE inputs using RCA cables.
5. Connect external devices (e.g., power amplifier) to the MONO OUT if needed.
6. Connect microphones to the MIC inputs.

Operation

• Powering On: Press the Power Switch. The ON LED should light up.
• Volume Control: Adjust ZONE VOLUME for each zone. LINE and MIC regulators control the mixing levels.
• Microphone Priority: The MIC2 input has priority over other active inputs; when used, other inputs are muted.
• Chime: Press the CHIME button to mute LINE inputs and broadcast a chime before an announcement.
• Indicators: The SIG LED flashes when an audio signal is received. The CLP LED indicates signal overload; reduce volume if it flashes.

Cleaning and Maintenance

Do not use strong or abrasive cleaners. Use a damp, soft cloth for cleaning. If a fuse blows, replace it only with the exact same type as indicated on the rear panel.