tender for iehe bhopal invites online tender for supply of sound system in the institute , sound system , wall mount cabinet loudspeaker general requirements: the loudspeaker shall be a cost-effective, 12w general-purpose cabinet speaker designed for indoor surface-mount applications. it must be suitable for both high-quality speech intelligibility and background music reproduction acoustic performance: rated power: 12w, with adjustable power tappings at 12w, 6w, and 3w to allow for 3 db step adjustments. sound pressure level (spl): must provide a maximum special of 102.0 db at 6w/1m (1 khz) and a sensitivity of 91.7 db at 1w/1m (1 khz). frequency range: the effective frequency range shall be from 150 hz to 15 khz. opening angles: horizontal: 184° (1 khz) / 86° (4 khz). vertical: 66° (1 khz) / 58° (4 khz). electrical specifications: input voltage: designed for 100 v line systems. rated impedance: 833 ohms. connection: shall feature a 4-pole push-in terminal block on the rear panel for easy on-site wiring and power tapping. durability: the unit must be tested for 100 hours of continuous operation at rated power in accordance with iec 268-5 standards. mechanical construction enclosure material: the main body shall be constructed from solid mdf (medium density fiberboard) covered in durable, easy-to-clean black vinyl. front grille: the front shall be abs plastic covered with a fine woven cloth in matching black. baffle design: shall feature an angled front baffle to optimize sound distribution within the listening area. mounting: the rear panel must include three keyholes for quick and secure wall mounting. dimensions: 445 mm x 151 mm x 150 mm / 111 mm environmental limits: operating temperature: -5 °c to +55 °c, storage temperature: -40 °c to +70 °c , wireless microphone system general system requirements: classification: the system shall be an entry-level professional wireless microphone system designed for ruggedness and ease of use in daily operations. ease of setup: the system must include a one-button automatic frequency scanning function to identify the clearest available channel. transmitter synchronization shall be achieved via an infrared data link to ensure error-free setup. frequency management: the system shall provide 32 preset channels, with compatible groups of eight channels for simultaneous multi-channel use. operating bands: the system shall be available in multiple rf frequency bands, including: a band: 618-634 mhz. b band: 678-694 mhz. c band: 516-532 mhz. e band: 850-865 mhz. receiver specifications type: synthesized pll with true antenna diversity to ensure stable rf reception. chassis: the receiver must feature a true rack-mountable metal chassis suitable for professional installation. rf performance: sensitivity: 1.0 μv for 12 db sinad. image rejection: greater than 55 db. audio outputs: balanced output: 20 dbv (max @ 40 khz deviation). unbalanced output: adjustable from 8 mv to 0.755v rms. display: front-panel backlit lcd displaying channel, frequency, and battery status. handheld transmitter construction: the transmitter shall feature a rugged metal body designed to withstand the rigors of daily use. microphone capsule: equipped with a cardioid dynamic capsule (pl22) for effective feedback control and ambient noise rejection. battery life: must operate for a minimum of 14 hours using two aa alkaline batteries. user interface: features a backlit lcd display and a dedicated mute function to protect the audio channel. bodypack transmitter construction: compact and rugged metal enclosure. input connector: industry-standard ta4f connector for compatibility with various lapel or headworn microphones. antenna: flexible external 1/4 wave antenna. acoustic & environmental performance system frequency response: 80 hz - 18 khz ± 2 db signal-to-noise ratio: 100 db a-weighted total harmonic distortion: 1.0%, 0.4% typical (ref 1 khz, 40 khz deviation) , professional gooseneck microphone general requirements: the microphone shall be a professional-grade, high-quality electret condenser gooseneck microphone designed for public address applications such as lecterns, podiums, and open conferences. it must feature a sleek, slender, and unobtrusive design to maintain a clear line of sight for the user. acoustic & technical performance transducer type: electret condenser. polar pattern: unidirectional (cardioid) to ensure high front-to-back rejection, providing more gain before feedback. frequency response: wide range from 20 hz to 18,000 hz. sensitivity: 7.5mv/pa power requirement: operable via a dc power source ranging from 1.5v to 9v. mechanical specifications overall length: 585 mm (approximately 23 inches) output connector: built-in 3-pin xlr male socket for secure and standard professional connectivity. optional accessories (compatibility) to ensure system flexibility, the microphone must be compatible with the following manufacturer-specific accessories: microphone base: a sturdy, heavy-duty die-cast aluminium base with an integrated on/off switch, led indicator, and built-in housing for 2 times 1.5v um-3 aa cells to power the condenser element. mic stand adaptor: a rugged aluminium die-cast body with a female xlr connector for direct mounting and a male xlr bottom connector for cable attachment. it must include a 10-meter shielded cable and a threaded brass ferrule 5/8 27 tpi for standard stand mounting. , mixer amplifier general system requirements type: the unit shall be a professional 120w mixer amplifier with integrated usb and bluetooth capabilities, designed for public address and background music applications. user interface: the amplifier shall feature a simplified user interface with preferred setting indicators (colored pins) for all front-panel knobs to ensure ease of operation for non-technical users. it must include an led vu meter for visual output level indication and a 6.3 mm headphone socket for monitoring the mixer output. reliability: the unit shall have no moving parts (such as hard drives) to ensure long-term operational reliability. audio inputs and media source microphone/line inputs: four (4) balanced inputs, switchable between microphone and line level sensitivity. switchable phantom power must be available to support condenser microphones. priority handling: input 1 shall have the capability to take priority over all other inputs via contact closure (push-to-talk) and include an optional 2-tone chime to precede announcements. music source: integrated media player: must support playback of mp3 and wav files (from 32 kbit/s) via a usb pen drive (up to 32gb capacity). wireless streaming: built-in bluetooth for high-quality audio streaming from mobile devices. remote control: the unit must be supplied with an ir remote control for the integrated music source. aux input: a separate stereo cinch input, internally converted to mono, with a sensitivity of 200 mv to 300 mv. audio performance and output output power: 120w rated output power. loudspeaker outputs: constant voltage: 100 v. low impedance: 4-ohm. call-only output: a dedicated 100 v call-only channel for priority-only areas or 3-wire remote volume control override. frequency response: 80 hz to 18 khz (+1/-3 db at -10 db ref. rated output). distortion: 1% at rated output power (1 khz). tone control: dedicated bass and treble controls providing max ± 8 db adjustment. system protection: an integrated limiter circuit must be included to protect the output stage from signal clipping and overload. insert feature: a pair of rca cinch connectors shall be provided to allow the unit to be used as a separate pre-amplifier and power amplifier. mechanical and environmental dimensions: 100 mm x 430 mm x 290 mm (standard 19 wide, 2u high). mounting: suitable for both stand-alone use and 19 rack mounting. operating temperature: -5 °c to +45 °c. compliance: the unit shall comply with iec 62368-1 (safety), cispr 32 (emc emission), and en 55103-2 (emc immunity). , mixing console general requirements the mixing console shall be a compact, versatile 6-channel analog mixer designed for a wide range of professional audio applications. it must feature high-quality microphone preamplifiers and a rugged construction suitable for both portable and fixed installations. audio inputs and processing input channels: the unit shall provide a total of 6 line inputs, configured as 2 mono and 2 stereo channels. microphone preamplifiers: the console shall include 2 microphone inputs featuring discrete class-a d-pre preamps with an inverted darlington circuit for superior sound quality. switchable +48v phantom power must be available for all microphone inputs. channel processing: mono inputs (ch1-2) shall include a 26db pad for high-level sources. each mono channel shall feature a high-pass filter (hpf) set at 80hz with a 12db/octave slope. equalization for mono channels shall consist of a 2-band eq: high (10khz shelving) and low (100hz shelving) with pm15 db adjustment. output and bus section buses: the console shall feature 1 stereo bus. outputs: stereo out: provided via 2 xlr-3-32 and 2 phone jacks (balanced). headphones: one (1) stereo phone jack output with a dedicated level control. monitoring: visual monitoring shall be provided by a 2 times 7 point led level meter (peak, +6, +3, 0, -3, -10, -20db). technical performance frequency response: pm 0.5db from 20hz to 20khz (referenced to nominal output level @ 1khz). total harmonic distortion (thd): 0.01% @ +8dbu (20hz to 20khz), gain knob: min 0.003% @ +18dbu (1khz), gain knob: min hum & noise: equivalent input noise of -128 dbu (mono input channel, rs: 150ω, gain knob: max) crosstalk: -88db @ 1khz. mechanical and electrical specifications chassis: the unit shall be housed in a robust, impact-resistant, powder-coated metal chassis. power supply: external ac adapter: pa-130 (120v 60hz) or mu18 (100-240v 50/60hz) or equivalent. power consumption shall be approximately 12w. , indoor wi-fi6 access point general system requirements type: the unit shall be a high-performance, high-speed 11ax (wi-fi 6) indoor dual-band ceiling-mounted wireless access point (ap). standard support: the wireless access point (ap) shall strictly adhere to the ieee 802.11ax (wi-fi 6) standard. radio configuration: the unit must be a high-power industrial ceiling-mounted ap featuring 2x2 mimo technology for both 2.4 ghz and 5 ghz bands. performance: the system must provide a combined wireless data rate of up to 3 gbps to support high-speed applications such as 4k/8k streaming and vr/ar. user capacity: the system shall support a high density of users, accommodating up to 128 concurrent users (max 64 users per band). advanced features: the ap shall support multi-user mimo (mu-mimo), orthogonal frequency division multiple access (ofdma), bss color bit, and dynamic cca-sd for improved interference management. hardware specifications chipset: the ap shall be equipped with a high-performance 4-core qualcomm chipset. ram: 512mb ddr3. antenna: integrated internal 4x4dbi dual-band mimo antennas. combined rate: a concurrent wireless rate of up to 3000 mbps. physical interfaces: 1 x 10/100/1000mbps wan/poe port. 1 x 10/100/1000mbps lan port. 1 x reset button. provision for a dc2.0 12v 1.5a power connector. support for power over ethernet (poe) following ieee 802.3af/802.3at standards. thermal management: the unit shall feature a heat sink with a snap-on structure and special surface coating to optimize heat dissipation. indicators: led status lights for power, cloud connection, lan speed, 2.4ghz status, and 5.0ghz status. audio & network management quality of service: must support wmm (wireless multimedia prioritization). roaming: support for seamless roaming to ensure uninterrupted connectivity for mobile clients. deployment: flexible deployment options including standalone mode, mobile app management, and zero touch provisioning (ztp). network management: support for vlan settings, cloud access (in gateway mode), and system logging. management: support for remote configuration and management. maintenance: features for backup/restore configuration, factory reset, scheduled reboots, and lifetime firmware upgrades. security requirements encryption: must support wi-fi protected access 3 (wpa3) and wired equivalent privacy (wep) 64-bit, 128-bit, and 156-bit. access control: integrated mac address filtering and wireless access control to identify authorized devices. management security: secure socket layer (ssl) for remote management login and the ability to block ssid broadcasting. environmental & reliability operating limits: working temperature: -10°c to 55°c. storage temperature: -40°c to 70°c. humidity: 5% to 95% non-condensing. protection: esd: air ±8k, touch 6k. electrical surge: common mode 2k, differential mode 1k. power efficiency: maximum power consumption shall not exceed 16 watts. oem warranty and support local presence: the original equipment manufacturer (oem) must have an authorized service center or registered office in madhya pradesh (proof of gst/msme/registration required with bid). warranty: a 2-year on-site hardware replacement warranty is required, with new hardware provided within 12 hours of a call lock (no refurbished or repaired products). technical support: on-site support must be available within 6 hours of a request. future warranty & support: oem must have warranty and support pack purchase option before expiry of warranty period for next years. service availability: the oem must provide a 24x7 1800-series toll-free number with support available in the local hindi language. product life cycle: the quoted product must have a life cycle of no less than 5 years from the date of supply, including lifetime free firmware and technical assistance. certifications: the product must be ce, fcc, rohs, iec 15408 and iso 9001. certified. bidder must have to submit compliance on oem letter head along with maf. , network wall mount rack must have to supply and installation of 15u 500x550 network wall mount rack with glass door and lock with hardware, 6 socket industrial pdu 15amp with mcb, cable manager, fan, hardware and etc. , goosneck mic cable, speaker cable in meter, installation and accessories complete job work with required cables, frpvc conduit, accessories, fitting, installation and etc.