Quam Nichols Company TBLU 25 to 70 Volt Transformer

Product Description

The QUAM NICHOLS COMPANY TBLU is a 25-to-70 volt transformer designed for use in distributed audio and public address speaker systems. This line-matching transformer steps voltage levels to allow speakers to operate efficiently on 25-volt or 70-volt constant-voltage audio distribution lines. It is a passive component installed by audio-electrical technicians and low-voltage system integrators working on commercial or institutional sound installations. The TBLU ships as a single unit and is categorized as a speaker accessory.

This transformer is suited for distributed speaker systems found in schools, offices, houses of worship, retail spaces, and similar commercial or institutional environments. Constant-voltage speaker lines using 25-volt or 70-volt standards are the standard approach for driving multiple speakers from a single amplifier channel, and the TBLU serves as the matching device between the distribution line and individual speaker loads.

Key Features

• Compatible with both 25-volt and 70-volt constant-voltage audio distribution systems
• Passive line-matching transformer — no external power required
• Single-unit packaging for straightforward replacement or new installation
• Designed for distributed speaker and public address applications

Compatibility

Designed as an OEM-style replacement or addition for distributed audio speaker systems operating on 25-volt or 70-volt constant-voltage lines.

Installation Notes

Installation is typically performed by a licensed low-voltage technician or audio systems integrator. De-energize the amplifier and the speaker distribution circuit completely before making any wiring connections. Local building codes and NEC low-voltage wiring requirements should be consulted prior to installation. Verify impedance and wattage tap settings are appropriate for the speaker load before restoring power.