Hitune HTZA 4000EM Two Zone PA Mixer Amplifier, 400W

KTI1400200140EM

Product Description

The Hitune HTZA-4000EM is a high-performance, two-zone commercial PA mixer amplifier delivering up to 400W rated output (300W + 300W Max) for multi-speaker industrial and commercial sound systems.

Brand: Hitune
Model: HTZA-4000EM
Power Output: 300W + 300W Max.; 200W + 200W RMS at 10% THD; 180W + 180W RMS at 5% THD; 165W + 165W RMS at 2% THD
Output Regulation: ≤ 2 dB, no load to full load at 1kHz
Input Channels: 6 × Mic (0.6mV / 4.7kΩ), 2 × Aux (100mV / 470kΩ), Stereo L/R (200mV / 100kΩ), Line L/R (1V / 50kΩ)
Tone Controls: Bass ±10 dB at 100 Hz, Treble ±10 dB at 10 kHz
Frequency Response: 50 Hz – 15,000 Hz ±3 dB
Signal to Noise Ratio: 60 dB
Outputs: Preamp 200mV / 600Ω, Line 1V / 1kΩ
Speaker Outputs: 4Ω, 8Ω, 70V, and 100V per zone
Power Supply: 220–240V AC 50/60Hz or 24V DC via two 12V car batteries
Power Consumption: AC 700VA, DC 9A
Dimensions: W510 × H172 × D385 mm
Net Weight: 24.2 kg

KTI1400200140EM

Price

₹ 19,855.13 excl. GST

+ 18.00% GST. Freight after pincode at cart.

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Product Details
Available Brands	Hitune
Unit	Numbers
HSN Code	85184000
Weight	24.2 kg
Dimension	L 38.5 x W 51 x H 17.2 cm cm ft in m
Warranty	12 Months No-Onsite Warranty
Tags/categories	Automation PA Solutions Amplifiers, Speakers

Usually dispatched within 6 days

About this product .

The Hitune HTZA-4000EM is a dual-zone public address mixer amplifier engineered for commercial and industrial sound distribution. Encased in a robust black metal chassis, it delivers rugged long-term performance in demanding rack or tabletop environments.
Equipped with dual amplification blocks, the amplifier delivers 300W + 300W maximum output with 200W + 200W RMS power at 10% THD. It maintains strict output voltage regulation of 2 dB or less from no load to full load at 1kHz, ensuring dependable audio levels during fluctuating system demands.
A comprehensive front-end preamplifier provides 6 mono microphone inputs (0.6mV / 4.7kΩ) and 2 auxiliary line inputs (100mV / 470kΩ), alongside stereo L/R (200mV / 100kΩ) and dedicated line inputs (1V / 50kΩ). Independent bass (±10 dB at 100 Hz) and treble (±10 dB at 10 kHz) tone controls allow tailored audio shaping for both spoken paging and music playback.
Dual-zone speaker taps offer broad speaker loading compatibility, accommodating low-impedance 4Ω and 8Ω speakers as well as constant-voltage 70V and 100V commercial distribution lines per zone. Preamplifier (200mV / 600Ω) and line (1V / 1kΩ) outputs allow easy expansion into external power booster amplifiers.
Engineered for continuous duty in educational facilities, worship places, factories, and warehouses, the unit supports both stereo music playback for background audio and mono dual-zone paging. This allows distinct volume adjustments between indoor work areas and outdoor zones.
Reliability is reinforced with versatile dual-power operation. The amplifier runs on 220–240V AC mains (700VA consumption) or instantly shifts to a 24V DC emergency power source using two external 12V car batteries, safeguarding uninterrupted public address during power outages.

Product Information .

Worship Places Shopping Malls, Showrooms Conference Rooms Auditorium Conference Hall Event Management

Hitune HTZA-4000EM Audio Interface, Speaker Load, and Power Compatibility

The Hitune HTZA-4000EM (TZA-4000EM) dual-zone PA mixer amplifier is engineered to interface with broad commercial public address, background music, and professional paging network architectures. System integrators can deploy the amplifier across dual independent audio zones or integrate it into consolidated mono and stereo sound distribution setups requiring distinct zone volume calibration.

Loudspeaker Load and Distributed Line Architecture

The amplifier features dedicated output taps for each of its two operational zones, accommodating both direct low-impedance voice-coil loads and constant-voltage distributed speaker networks. Installers can match loudspeaker configurations using the following zone output options:

Low-Impedance Connections: Dedicated 4Ω and 8Ω terminal taps per zone allow direct connection of low-impedance commercial sound reinforcement cabinets, industrial horn speakers, or monitor enclosures.
Distributed Line Taps (70V and 100V): High-voltage multi-speaker lines operate on 70V or 100V line taps per zone. This facilitates long cable runs with stepped-down transformer-coupled ceiling speakers, column speakers, and industrial projector horns without excessive line loss.
Zone Isolation: The two zones can be deployed independently (e.g., dividing indoor acoustic spaces from outdoor industrial yards) with independent power delivery up to 200W + 200W RMS (at 10% THD) and maximum capability of 300W + 300W Max. Output voltage regulation remains ≤ 2 dB from no-load to full-load conditions at 1 kHz.

Input Signal Compatibility and Impedance Matching

The mixer stage provides dedicated input impedance and sensitivity ratings engineered to accept dynamic paging microphones, consumer playback equipment, and balanced or unbalanced line-level broadcast feeds:

Microphone Channels: Six mono microphone inputs with 0.6mV sensitivity and 4.7kΩ input impedance, suitable for standard low-impedance dynamic announcement microphones and industrial push-to-talk stations.
Auxiliary Inputs: Two auxiliary inputs rated at 100mV sensitivity and 470kΩ impedance, facilitating connection to media players, tuners, or automation sound modules.
Stereo Input: Stereo L/R input rated at 200mV across a 100kΩ load, supporting playback systems, professional media playback decks, and DJ audio programmes.
Line Input: Line L/R inputs rated at 1V sensitivity with 50kΩ impedance, accommodating direct line-level signals from external mixing desks, preamplifiers, or audio routers.

Preamplifier and Auxiliary Signal Routing

For modular expansion across multi-amplifier commercial installations, the HTZA-4000EM incorporates preamplifier and line-level loop outputs:

Preamp Output: Rated at 200mV into 600Ω, allowing signal extraction prior to the internal power amplification stage for routing into external audio processors, recording equipment, or signal monitoring hardware.
Line Output: Delivers 1V into 1kΩ, enabling daisy-chain connections to secondary booster amplifiers or slave PA power units without signal degradation.

Operational Modes and Frequency Calibration

The HTZA-4000EM supports Stereo Music Operation for stereo sound sources such as DJ programmes, as well as a Mono mode that permits simultaneous dual-group loudspeaker driving. Master acoustic contouring provides frequency response compatibility across 50 Hz to 15,000 Hz (±3 dB) with an overall signal-to-noise ratio of 60 dB. Integrated tone adjustments offer ±10 dB Bass correction at 100 Hz and ±10 dB Treble correction at 10 kHz.

Electrical Mains and DC Battery Interfacing

Designed for mission-critical industrial installations requiring uninterrupted communication, the unit supports primary and secondary power supply sources:

AC Mains Power: Operates on standard 220–240V AC at 50/60 Hz, drawing a maximum power consumption of 700VA.
DC Auxiliary Backup: Operates on a 24V DC backup circuit drawing 9A DC, compatible with two external 12V car batteries (they are not included). This dual-source compatibility maintains public address continuity during mains outages.

Hitune HTZA-4000EM Installation, Wiring, and Audio Integration Guide

Chassis Placement and Physical Mounting Considerations

The Hitune Bass HTZA-4000EM (TZA-4000EM) is housed in a rugged black metal sheet enclosure measuring 510 mm in width, 172 mm in height, and 385 mm in depth. Due to the total net weight of 24.2 kg, install the amplifier on a reinforced equipment rack shelf, heavy-duty industrial audio bench, or dedicated structural platform rated to sustain substantial mechanical loads without deflection.

Because the amplifier operates with an AC power consumption rating of 700VA and DC current draw of 9A under maximum output, sufficient ventilation clearance must be maintained around the metal chassis. Avoid blocking heat ventilation pathways or placing the amplifier directly adjacent to external thermal sources inside enclosed racks or control cabinets.

Primary AC Mains and 24V DC Battery Supply Wiring

The HTZA-4000EM features a dual-source power input architecture to ensure uninterrupted audio transmission in commercial and industrial facilities:

AC Mains Operation: Connect the amplifier to a stable alternating current supply rated at 220–240V AC, 50/60Hz. The internal power transformer handles up to 700VA AC power demand during continuous dual-zone operation.
DC Auxiliary Backup Operation: For emergency evacuation or backup power configurations, terminate a 24V DC direct current supply into the rear DC terminals. This DC input requires two 12V car batteries (they are not included) wired in series. Ensure proper polarity alignment and cable gauge selection capable of delivering 9A DC continuous current under full load.

Dual-Zone Loudspeaker Terminal Connections

The unit features independent dual-zone output channels (Zone 1 and Zone 2) designed to deliver power separately to two isolated areas, such as indoor and outdoor acoustic environments. The amplifier provides a maximum output capacity of 300W + 300W Max, with nominal RMS output ratings calibrated at 200W + 200W RMS at 10% THD, 180W + 180W RMS at 5% THD, and 165W + 165W RMS at 2% THD. Output regulation remains within ≤ 2 dB from no-load to full-load conditions at 1kHz.

Each zone must be wired strictly according to one of the following impedance or line-voltage formats:

Output Configuration	Terminal Tap	Installation Matching Parameters
Low-Impedance Standard	4Ω or 8Ω	Used for direct, short-run speaker circuits. Ensure the cumulative speaker load impedance matches the selected 4Ω or 8Ω tap per zone without dropping below rated limits.
Distributed Constant-Voltage	70V Line	Used for multi-speaker commercial distributions. Speakers require step-down line matching transformers tapped at 70V. Total tapped wattage must not exceed the amplifier zone wattage rating.
Distributed Constant-Voltage	100V Line	Used for long-distance distributed public address lines. Connect loudspeakers fitted with 100V line transformers, ensuring sum total transformer wattage remains within RMS limits.

Input Cabling, Signal Routing, and Calibration

The HTZA-4000EM mixer section integrates multiple inputs to accommodate dynamic microphones, playback devices, and external mixing consoles:

Microphone Channels: Connect low-impedance microphones across the 6 Mono Mic input channels (sensitivity: 0.6mV at 4.7kΩ input impedance).
Auxiliary and Line Inputs: Terminate external media players or pre-recorded messaging systems into the 2 Aux inputs (100mV / 470kΩ), the Line L/R inputs (1V / 50kΩ), or the Stereo L/R inputs (200mV / 100kΩ).
Peripheral and Preamp Cascading: For system expansion, link outboard recording equipment, signal processors, or booster amplifiers utilizing the Preamp output (200mV / 600Ω) or Line output (1V / 1kΩ).

Configure the system mode based on operational requirements. Select Stereo Music Operation for DJ programmes and split-channel stereo audio feeds, or engage simultaneous dual-group Mono mode to broadcast microphone signals and background audio across both zones at independently calibrated volume levels. Finalize commissioning by tuning the onboard tone controls (Bass: ±10dB at 100Hz; Treble: ±10dB at 10kHz) to optimize speech intelligibility across the 50 Hz to 15,000 Hz (±3dB) operating frequency spectrum at a 60 dB signal-to-noise ratio.

Industrial & Commercial Deployment Scenarios

Split Indoor and Outdoor Zone Public Address

The Hitune Bass HTZA-4000EM is engineered specifically for multi-speaker commercial and industrial facilities requiring separate acoustic level calibrations across distinct spaces. Featuring dual-zone amplification architecture delivering up to 300W + 300W Max (200W + 200W RMS at 10% THD; 180W + 180W RMS at 5% THD), systems engineers can isolate sound levels between indoor environments—such as administrative offices, plant floors, or warehouses—and outdoor areas like loading bays, yards, or perimeters. Output regulation maintains variance within ≤ 2 dB from no load to full load at 1kHz, ensuring stable volume levels regardless of changing zone activity.

Distributed 70V and 100V Line Installations

Large-footprint industrial facilities benefit from the amplifier's integrated line-matching capabilities. Each zone provides dedicated high-impedance 70V and 100V line taps alongside standard low-impedance 4Ω and 8Ω terminal options:

Long-Distance Ceiling & Column Arrays: Drive distributed 70V/100V transformers across multi-floor complexes or long plant corridors without line attenuation issues.
Local High-Fidelity Sound Reinforcement: Connect 4Ω or 8Ω speaker enclosures directly for focused acoustic coverage in centralized rooms, dispatch stations, or meeting spaces.
Simultaneous Dual-Group Mono Mode: Run two distinct speaker groups concurrently in Mono mode while feeding identical or mixed source material across plant sections.

Multi-Microphone Industrial Announcements and Paging

Facilities requiring multi-point operator dispatch, plant paging, and voice communications leverage the onboard 6-channel mono microphone array. Each mic channel offers 0.6mV sensitivity at 4.7kΩ input impedance, allowing dispatch desks, gatehouses, production floors, and supervisor stations to interface with a single head-end chassis. Frequency response across 50 Hz to 15,000 Hz (±3dB) with a 60 dB signal-to-noise ratio maintains speech intelligibility, while Bass (±10dB at 100Hz) and Treble (±10dB at 10kHz) tone controls permit acoustic adjustments to mitigate low-end room resonance or enhance vocal clarity.

Event Sound and Stereo DJ Programmes

For auditoriums, multi-purpose company halls, hospitality venues, and outdoor gathering spaces, the HTZA-4000EM supports Stereo Music Operation. Operators can connect media players, mixing consoles, or DJ equipment via dual Aux inputs (100mV/470kΩ), Stereo L/R inputs (200mV/100kΩ), or Line L/R inputs (1V/50kΩ). Preamp output (200mV/600Ω) and Line output (1V/1kΩ) terminals enable cascading audio signals to auxiliary recording devices or secondary booster amplifiers.

Continuous Operations and Emergency DC Power Backup

Continuous industrial monitoring and emergency announcement systems depend on the amplifier's dual-power capability. Operating primarily on standard AC mains (220–240V 50/60Hz, consuming 700VA), the unit provides dedicated 24V DC terminals engineered to run off two external 12V car batteries (they are not included) at a 9A current draw. This automatic operational continuity maintains plant-wide communication during sudden primary electrical grid disruptions.

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