Supply, Installation, Testing and Commissioning of Public Address System at Kuttambalam of Kerala Kalamandalam

Powered line-array loudspeaker Supply, Installation, Testing and Commissioning (SITC) of a professional compact two-way self-powered line-array loudspeaker module suitable for live sound reinforcement, auditorium, touring, and fixed installation applications, incorporating dual low-frequency neodymium transducers of approximately 6–7 inches each and a high-frequency compression driver with waveguide, driven by integrated Class-D amplification with built-in DSP processing for crossover, equalization, delay, limiting, and system protection. The loudspeaker shall deliver continuous power handling in the range of approximately 500–800 W or higher, maximum sound pressure level of not less than 130 dB SPL, usable frequency response extending approximately from 60 Hz to 17 kHz or wider, and horizontal coverage of about 100°–120°, suitable for scalable vertical array deployment. The enclosure shall be of rugged, tour-grade construction with integrated rigging hardware enabling safe suspension or ground-stacked line-array configuration, and shall include balanced audio input/output connectivity, network or software-based control/monitoring capability where applicable, power cabling, flying accessories, and all necessary mounting hardware required for complete system deployment. The system shall be fully compatible with professional subwoofer systems and digital audio infrastructure, and shall be supplied complete with all accessories, interconnections, documentation, installation, alignment, testing, and commissioning, ensuring uniform coverage, phase coherence, safe rigging compliance, and noise-free operation in accordance with approved technical standards and site requirements. Reference Make & Model: JBL SRX 906LA JBL Professional / RCF / dB Technologies / QSC / Wharfedale Pro

High-Power Powered Subwoofer Supply, Installation, Testing and Commissioning (SITC) of a professional self-powered low-frequency subwoofer system suitable for live sound reinforcement, auditorium, touring and fixed installation applications, incorporating a minimum single 18-inch high-excursion low-frequency transducer housed in an acoustically optimized enclosure and driven by integrated high-efficiency Class-D amplification with built-in DSP processing for crossover, equalization, delay, polarity control, limiting, and comprehensive system protection. The unit shall deliver continuous amplifier power of not less than approximately 1000 W RMS (or higher), maximum peak sound pressure level of not less than about 130 dB SPL and usable low-frequency response extending to approximately 35 Hz or lower, suitable for integration with professional full-range and line-array loudspeaker systems. The enclosure shall be of rugged tour-grade construction with durable finish, integrated handles, pole-mount provision for satellite loudspeakers, and provision for safe ground-stacking or transport, and shall include balanced audio input and high-pass filtered output connectivity, selectable presets or network/software-based control and monitoring where applicable, power cabling, and all necessary mounting and interconnection accessories required for complete deployment. The system shall be supplied complete with all accessories, interconnections, documentation, installation, alignment, testing, and commissioning, ensuring proper phase integration, uniform low-frequency coverage, safe electrical and mechanical operation, and compliance with approved professional audio and site technical standards, forming a fully operational high-power subwoofer solution. Reference Make & Model JBL SRX 918S Approved makes: JBL Professional / QSC / RCF / dB Technologies / Wharfedale Pro

Compact Array Flying Frame for Powered line-array loudspeaker Supply, Installation, Testing and Commissioning (SITC) of a certified compact array flying frame compatible with the offered professional line-array loudspeaker system, suitable for suspension or ground-stack deployment in live sound, auditorium, touring, and fixed installations. The frame shall feature a two-part collapsible or modular quick-deployment design, constructed from high-strength corrosion-resistant metal, and shall be rated to safely support the complete loudspeaker array with appropriate safety factor in compliance with relevant rigging and safety standards. It shall include secure locking mechanisms, adjustable tilt/angle provision, certified suspension points, and compatibility with standard lifting hardware, and be supplied complete with all necessary rigging accessories, fasteners, safety pins, load-rated fittings, and transport provisions. Preferred Make & Model: JBL EON 710 Approved makes: JBL Professional / Yamaha / QSC / RCF / dB Technologies / Mackie / LD Systems

Self-powered two-way floor monitor Supply, Installation, Testing and Commissioning (SITC) of a professional self-powered two-way floor monitor suitable for live sound reinforcement, stage monitoring, auditorium, and installed sound applications, incorporating a custom-designed 10-inch low-frequency transducer and a high-frequency compression driver with waveguide, driven by integrated high-efficiency Class-D amplification delivering not less than 1300 W peak and 650 W continuous power, with maximum sound pressure level of approximately 125 dB or higher and usable frequency response extending approximately from 52 Hz to 20 kHz. The unit shall include a built-in multi-channel digital mixer, advanced digital signal processing derived from professional audio processing platforms providing equalization, delay, crossover, feedback control, and protection functions, along with balanced XLR/TRS combo inputs, Bluetooth or equivalent wireless audio/control capability, and balanced XLR link/thru output. Input impedance, gain range, and crossover characteristics shall be suitable for professional microphone- and line-level operation. The enclosure shall be of rugged, acoustically optimized construction suitable for wedge-monitor or pole-mounted deployment, incorporating integral handles, stable base geometry, and durable finish for continuous professional use. The system shall be supplied complete with all required accessories, interconnections, documentation, installation, testing, and commissioning, ensuring noise-free operation, safe electrical performance, and full functional compliance in accordance with approved technical standards and site requirements, forming a complete deployable powered floor-monitor solution. Reference Make & Model: JBL EON 710 Approved makes: JBL Professional / Yamaha / QSC / RCF / dB Technologies / Mackie / LD Systems

Supply, Installation, Testing and Commissioning of: A 24-channel analog mixing console. A professional multi-channel analog mixing console suitable for live sound reinforcement and auditorium applications, comprising a minimum of 16 mono microphone input channels with high-quality, low-noise mic preamplifiers and +48 V phantom power, along with additional stereo input channels, together forming a 24-channel analog mixing console, balanced XLR/TRS connectivity, 3-band equalization with sweepable mid-frequency and high-pass filter on mono channels, equalization on stereo channels, multiple auxiliary sends for monitor and effects operation, built-in 24-bit digital signal processor providing selectable reverberation, delay, and modulation effects, subgroup and main stereo bus routing, stereo USB or equivalent interface for playback and recording, LED level metering, headphone and control-room monitoring outputs, graphic equalization on main outputs, rugged metal chassis suitable for continuous professional use, and complete with all required accessories, interconnections, power supply, documentation, installation, testing, and commissioning in accordance with approved technical standards and site requirements. 24-channel analog mixing console Reference Make & Model: Soundcraft Nano M24 Approved makes: Sound craft / Yamaha / Allen & Heath / Mackie / Behringer.

Dynamic vocal microphone Supply, Installation, Testing and Commissioning (SITC) of a professional wired dynamic vocal microphone suitable for live sound reinforcement, stage performance, public address, and studio applications, featuring a moving-coil dynamic transducer, cardioid polar pickup pattern for effective rear-noise rejection and feedback control, and frequency response approximately 50 Hz to 15 kHz optimized for vocal clarity. The microphone shall incorporate a durable all-metal body construction, integral pneumatic or equivalent shock-mount system to minimize handling noise, and balanced low-impedance XLR output compatible with standard professional audio mixing consoles and PA systems. The unit shall be supplied complete with microphone clip/holder, thread adapter, protective storage pouch or case, and necessary interconnection accessories, and shall be installed, tested, and commissioned to ensure noise-free performance, proper signal integrity, and compliance with approved professional audio and site technical standards, forming a complete deployable vocal-microphone solution suitable for continuous professional use. Reference Make & Model Shure SM 58 Approved makes: Shure / Sennheiser / AKG / Audix

Dynamic instrument microphone Supply, Installation, Testing and Commissioning (SITC) of a professional wired dynamic instrument microphone suitable for live sound reinforcement, studio recording, public address and installed audio applications, incorporating a moving-coil dynamic transducer, cardioid polar pickup pattern for effective off-axis noise rejection and feedback control, and frequency response approximately 40 Hz to 15 kHz optimized for close-miking of musical instruments, percussion, and amplified sound sources. The microphone shall feature a rugged all-metal body construction, integral pneumatic or equivalent internal shock-mount system to minimize handling noise and vibration, and balanced low-impedance XLR output compatible with standard professional mixing consoles and PA systems without the need for external power. The unit shall be supplied protective storage pouch or case and necessary interconnection accessories, and shall be installed, tested, and commissioned to ensure noise-free performance, proper signal integrity, and compliance with approved professional audio and site technical standards, forming a complete deployable instrument-microphone solution suitable for continuous professional use. Reference Make & Model Shure SM 57 Approved makes: Shure / Sennheiser / AKG / Audix

Professional Drum Microphone Package Supply, Installation, Testing and Commissioning (SITC) of a professional complete drum microphone package suitable for live sound reinforcement, studio recording, and installed performance applications, comprising not less than seven wired microphones including one dedicated low-frequency kick-drum dynamic microphone, multiple dynamic microphones for snare and tom applications, and a pair of condenser overhead microphones of identical make and model requiring standard 48 V phantom power, all featuring cardioid pickup pattern, high sound-pressure-level handling capability, balanced XLR output connectivity, and frequency response optimized for percussion instruments. The system shall be supplied complete with drum-rim mounting hardware, microphone clips, appropriate interconnection cables where applicable, and a durable protective carrying case, forming a fully deployable drum-miking solution compatible with standard professional audio mixing consoles and PA systems. The equipment shall be of robust construction suitable for continuous professional use and shall include all accessories, interconnections, documentation, installation, testing, and commissioning in accordance with approved technical standards and site requirements. Reference Make & Model: Shure PGA Drumkit 7 Shure / Sennheiser / AKG / Audix

Compact Overhead Condenser Microphone Supply, Installation, Testing and Commissioning (SITC) of a professional compact overhead condenser microphone system suitable for speech reinforcement, choir capture, conferencing, and installed sound applications, comprising a miniature condenser microphone capsule with flexible gooseneck or suspension provision and interchangeable polar pattern cartridges (minimum omnidirectional and cardioid) to enable adaptable coverage. The microphone shall provide wide and natural frequency response approximately 50 Hz to 17 kHz, high dynamic range (≈ 95 dB or greater), minimum common-mode rejection of about 45 dB, and balanced low-impedance output with defined polarity, ensuring clear and accurate sound reproduction with low noise and distortion. The unit shall operate on standard phantom power in the range of approximately 11 V to 52 V DC with low current consumption, and shall include an in-line or integrated preamplifier with controlled clipping characteristics suitable for professional audio systems. The system shall be supplied complete with suspension accessories, interchangeable cartridges, necessary interconnection components, documentation, installation, testing and commissioning, ensuring stable overhead deployment, noise-free performance, and compliance with approved professional audio and site technical standards, forming a fully deployable overhead condenser microphone solution suitable for continuous installed use. Reference Make & Model : Shure MX202 Shure / Audio-Technica / AKG / Electro-Voice / Earthworks / Samson / Peavey