ITC T-674 60W Volume Control for 70V/100V PA Systems

The ITC T-674 is a professional wall-mounted volume control designed for 70V/100V public address and distributed audio systems. With a 60W input power rating and transformer-based control, it provides convenient local adjustment of speaker volume while maintaining compatibility with voltage speaker systems.

The T-674 is an ideal choice for installations where users need simple, reliable control over the audio level in individual rooms or zones.

Key Features

• 60W Input Power — Designed for audio systems with up to 60W input power.

• 70V/100V Line Compatibility — Suitable for commercial PA and distributed speaker systems using 70V or 100V audio lines.

• Transformer Volume Control — Uses transformer-based attenuation for voltage speaker applications.

• 11 Volume Steps — Provides 11-step adjustment for convenient control of audio levels.

• 0–100V Signal Output — Designed for compatible voltage speaker systems.

• 80Hz–16kHz Frequency Response — Supports a broad audio frequency range for distributed sound applications.

• Compact Wall-Mount Design — Suitable for clean and practical installation in rooms and audio zones.

• White PC Finish — Neutral appearance designed to blend with typical interior environments.

• Lightweight Construction — Approximately 0.20kg for easy handling and installation.

Ideal for Distributed Audio Systems

The ITC T-674 is designed for applications where a 70V/100V PA system requires local volume adjustment. It can be used to control audio levels in individual areas while the main amplifier and distributed speaker system remain centralized.

Professional 60W Volume Control

With a 60W power rating, the T-674 is positioned between lower-power and higher-power models in the ITC volume control range. Its transformer-based design makes it suitable for voltage speaker installations commonly used in commercial and public-address environments.

11-Step Volume Adjustment

The 11-step control provides practical adjustment of the audio level without requiring access to the main amplifier or central PA equipment. This makes it useful for installations with multiple rooms or zones requiring independent volume control.

Recommended Applications

The ITC T-674 can be used in:

• Offices

• Schools and educational facilities

• Retail stores

• Hotels

• Restaurants

• Commercial buildings

• Public address systems

• Background music systems

• Multi-zone distributed audio installations

Technical Specifications

SpecificationITC T-674ModelT-674Input Power60WControl ModeTransformerSignal Input70–100VSignal Output0–100VSpeaker TypeVoltage SpeakerFrequency Response80Hz–16kHzVolume Steps11RelayNoFinishPC, WhiteMounting Size80 × 80mmDimensions86.7 × 86.7 × 67.5mmWeightApprox. 0.20kg

Specifications are based on ITC's published T-674 documentation.