Public Address System | Innotec Solutions | Security Products

Public Address (PA) System Singapore

A public address system (PA system) is an electronic sound amplification and distribution system with a microphone, amplifier and loudspeakers, used to allow a person to speak to a large public, for example for announcements of movements at large and noisy air and rail terminals or at a sports stadium or amplify other audio content, such as recorded music or the live sound of a band. The term is also used for systems which may additionally have a mixing console, and amplifiers and loudspeakers suitable for music as well as speech, used to reinforce a sound source, such as recorded music or a person giving a speech or distributing the sound throughout a venue, building or area.

Simple PA systems are often used in small venues such as school auditoriums, churches, and small bars. PA systems with many speakers are widely used to make announcements in public, institutional and commercial buildings and locations, such as schools, stadiums and large passenger vessels and aircraft. Intercom systems, installed in many buildings, have both speakers throughout a building, and microphones in many rooms allowing the occupants to respond to announcements.

Our logistics processes, services, tools and systems in combination with strategic CCTV Security camera locations help you to meet your security needs and achieve security with much more accuracy. Moreover, our project engineers are experienced in applying security solutions to large scale buildings and properties.

Whether it is the one time installation you need done, or whether you are looking for professional and long-term asset management or tech support requirements, we can assure you of the best services at the most economical pricing. Our sales and logistics consultants are always available to help you with any further and detailed queries you might have regarding our services and security solutions.

Featured Client


International Plaza Building

International Plaza Building is a 50 storey commercial and residential building in the heart of Singapore CBD. At a height of 190 meters, it is an iconic building that represents the growth of our commercial sector. Innotec provides a comprehensive surveillance and security solution for the entire building which includes:
•Installation of more than 150 Access Controls
•Installation of more than 50 Intrusion Detection Systems
•Installation of 15 Public Address System Speakers •Integration of PA system with security solutions •Highly Secured Entry points for maximum security

Featured Brand



TOA Electronics, Inc. is dedicated to the development, manufacturing and distribution of premier commercial audio and security products. TOA Corporation was founded in Kobe, Japan over 75 years ago. TOA operates in over 100 countries worldwide, with manufacturing facilities found in nearly every major market area. These facilities have a reputation for precision design and fabrication, resulting in a proven track record of TOA product reliability.

Featured Products


"We Supply Sound, Not Equipment. That’s Our Corporate Philosophy."

Planning and Design Carried Out in Japan

Thorough Proving of Product Design and Production Processes
The basis of our quality assurance activities is the product planning and design that is carried out pri-marily in Japan in response to market needs and in compliance with ISO9001:14001 standards. Our dedicated professional staff inspect products at every stage of the production process using their years of experience and their high levels of techno-logical expertise

Quality Control by TOA HQ
TOA production plants both within Japan and overseas are part of TOA Group. Numerous technicians from Japan are sent to our overseas pro-duction plants where they use state-of-the-art equipment to produce prod-ucts under the same stringent quality control system as is used in our pro-duction facilities in Japan. Furthermore, twice a year, staff from our Quali-ty Control Division visit overseas production facilities to carry out inspec-tions and ensure that quality standards are being maintained

Featured Products

Dynamic Microphones

Unidirectional Microphone


•Rigid diecast zinc microphone body
• Switching and handling noise suppression
• 10 m phone plug cable supplied with unit
• Balanced output for long distance connection
• Dynamic hand-held microphone for speech use
• Microphone holder provided as standard accessory


Unidirectional Microphone


•Rigid diecast zinc microphone body
• Switching and handling noise suppression
• 10 m phone plug cable supplied with unit
• Balanced output for long distance connection
• Dynamic hand-held microphone for vocal/speech use
• Microphone holder provided as standard accessory


Paging Microphones


•Dynamic paging microphone without plug
• Large talk switch with locking lever
• Extra switch contact for mute or relay control
• Fitted with 2.5m, 2-core shielded cable without plug



•Noise-canceling for high noise environments
• Lock-on push-to-talk switch for continuous use
• Pig-tail cord with external control contacts and conductors
• Mounting sleeve included for wall-mounting


Microphone Desk Stand


Program Timer

TT-104B 304L

•For timed control of external equipment and events
•Four independent outputs with 30 programmable steps per output
•Outputs features 0.5A (24V DC) five second dry contact closures
•Weekly program with pause mode for vacations/holidays
•-/+5 second per month clock accuracy with four day backup battery if power fails


AM/FM Tuner

DT-930 UL

•Presets for any combination of 40 AM (monaural) and/or FM (capable of receiving stereo broadcast) stations
•Frequency synthesized digital tuning with multi-function digital display
•Automatic station scanning and manual tuning
•Automatic station storage to memory using auto-scan mode
•Direct station frequency tuning entry
•Stereo output is available
•FM dipole and AM loop antenna included •Optional rack mount kit available (MB-15B)


Integrated DSP and Control System

The DP-K1 is a 3U rack mountable Digital Audio Processor. It features Automatic Resonance Control (ARC) that automatically generates an opti-mum filter curve to improve sound clarity after measuring the acoustic characteristics in architectural space. It permits flexible configuration of inputs and outputs, from 2-IN/4-OUT to 8-IN/8-OUT using the optional modules. Each function is set by a PC using the dedicated software. The settings can be stored in the unit’s internal memory and the stored preset memories can be recalled from the unit without connecting the PC. This rack-mount digital mixer / processor is suitible for installed sound applications such as houses of worship, sports facilities, convention centers, airports, and others.


•Modular design allows up to 8 mic/line inputs and 8 line outputs (modules not included)
•Auto Resonance Control (ARC): Advanced measurement and processing algorithm improves speech intelligibility and sound quality in facilities with challenging acoustic environments
•Automatically identifies room mode frequencies and applies an inverse response curve to compensate for the measured room response
•Essential audio processing tools — compressors, gates, crossovers, multi-band filtering, parametric, high/low-pass, all-pass and notch filters, horn EQ, high/low shelving and output delay


A-5000 Series Mixer Amplifiers

A-5006 3CUD00 [60W]

A-5012 3CUD00 [120W]

•1U-half size compact and simple hardware for easy setting
•Hi-/Low-Z speaker connection
•2 x mic/line inputs with mute
•Intuitive GUI software for sound optimization
•5-band Parametric Equalizer for each input and output
•Remote Master Volume Control
•Mute (Mic 1 priority: Manual mute)
•Compressor for each input 1 and 2


900 Series Amplifiers

P-906MK2 UL [60w]

P-912MK2 UL [120W]

P-924MK2 UL [240W]

•Modular single channel power amplifiers for paging, background/ foreground music distribution and music/messaging-on-hold
•Input module slot accepts most TOA plug-in modules for custom system configurations
•Direct low-impedance output mode bypasses output transformer
•Direct input for connecting an external mixer or other source
•Selectable input sensitivity to accommodate high or low input levels
•Low cut switch to limit low frequency response
•Optional rack-mount kits: P-906/P-912MK2 UL: MB-25B (2 RU); P-924MK2 UL: MB-35B (3 RU)


Ceiling Speakers

Splashproof Ceiling Speaker


•Clean room / shower room speaker
•For humid or high temperature areas
•IP64 certified weatherproof construction
•Resistant against formalin and iodine solutions
•Wide temperature range of -4ºF to 140ºF
•Fits in 100 mm holes


Clean Room Ceiling Speaker


•Sealed high-molecular speaker membrane to prevent floating dust particles from contaminating the environment
•Resistant against formalin
•Wide temperature range -4ºF to 131ºF
•Fits in 98mm holes


Flush Mount Type Ceiling Speakers


•Spring clamp mechanism for easy speaker mounting to the ceiling
•High cost performance
•PP Resin, SECC punching net


Flush Mount Type Ceiling Speakers


•Speaker designs that harmonize with the venue’s architecture and decor
•Quick and easy installation thanks to new SUS spring clamp installation method
•Wide frequency response •Greater variety of ceiling speaker diameters (5”, 6”, 8” (12, 16, 20cm))
•Thin panel does not clash with interior design


Wide Range Horn Speaker

CS-154 /CS-154U*

CS-304 /CS-304U*

•Wide-range paging speaker for voice paging, background music and tone signaling distribution
•Constant directivity horn improves directivity characteristics and ensure uni-form and clear sound dispersion
•High sensitivity: up to 98 dB (1W/1m)IP65 certified weatherproof construction
•Weatherproof polyurethane resin paint and impact-proof lightweight ABS resin enclosure •Stainless steel hardware protects the speaker from corrosion
•*UL 1480 UEAY listed


Wall-Mount Public Address Speakers



•Easy and quick installation
•Low profile, beautiful design due to the Golden Ratio (1: 1.618)
•Creates a distinctly different impression depending on whether it is installed horizontally or vertically
•Two colors selectable: off-white, which matches any interior style, and silver, which adds a quality appearance
•Ideally suited for BGM and announcements


Wide-dispersion Ceiling Speakers

•Expanded listening coverage area through extra-wide dispersion characteristics
•Minimal high frequency roll off allows clear and well-balanced sound reproduction over a wide listening area •Designed to blend into ceilings with a smooth, low-profile design
•Extra ease of use and higher cost-effectiveness with metal “back can” enclosure for speaker back.



•Equalizing controlled type full range speaker for medium ceiling height (2 to 4 m)
•Cost effective if many speakers are installed
•Heat-resistant back can
•Optimized for use with optional digital processors
•Diffuser for wide dispersion of high frequencies
•Is UL 1480UUMW rated
•CU2 is UL 2043 plenum rated

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