Amplifier & Transmission Line Integration
The Ahuja PS-400T (KT ERP Reference: KTI14004007PS4T) is engineered for dual-mode electrical architecture, allowing seamless deployment across both commercial constant-voltage distributed audio networks and conventional low-impedance sound systems. Equipped with an internal line-matching transformer and an integrated rotary selector switch, the speaker interfaces directly with standard 100V commercial PA line amplifiers as well as direct low-impedance audio channels.
In distributed 100V line installations, the speaker enables multiple units to be connected in parallel across extended cable runs without complex series-parallel impedance calculations. The rear rotary switch provides field-selectable multi-tap configurations of 16W, 8W, and 4W, allowing audio engineers and commercial AV contractors to balance zone volume and customize sound pressure levels per acoustic zone.
Dual-Mode Electrical Compatibility
Audio system designers can alternate between high-voltage distribution and direct voice-coil driving depending on installation requirements:
- 100V Line Mode (16W Tap): Full 16W RMS power draw for primary listening areas, high ambient noise spaces, and larger architectural zones.
- 100V Line Mode (8W Tap): Balanced power distribution for standard background music in corridors, commercial banking halls, and enterprise office floors.
- 100V Line Mode (4W Tap): Low-draw distributed setting ideal for small offices, quiet waiting areas, and dense multi-speaker arrays to minimize total amplifier load.
- Low-Impedance Mode (8Ω Bypass): Direct connection to low-impedance commercial audio amplifiers, supporting standard 8-ohm channel loading with a continuous power rating of 16W RMS and a maximum power handling of 24W Max.
Acoustic Matching & Electrical Specifications
| System Parameter | Operational Specification | Integration Notes |
|---|---|---|
| Operating Voltage | 100V Constant Voltage Line | Selectable via integrated rotary switch |
| Selectable 100V Taps | 16W / 8W / 4W | Enables zone-level power balancing |
| Low Impedance Setting | 8 Ω (Direct) | Direct amplifier output connection |
| Input Power Capacity | 16W RMS / 24W Max | Matches standard commercial amplifier ratings |
| Sensitivity (SPL @ 1kHz) | 86 dB (1W/1m) | Optimal efficiency for speech and background music |
| Frequency Response | 85 Hz to 20,000 Hz | Full-spectrum music and vocal clarity |
| Transducer Array | 95 mm (3¾”) Woofer + 13 mm Dome Tweeter | 2-way acoustic configuration |
| Harmonized Tariff / HSN | 8518 | Commercial audio equipment classification |
Mechanical & Environmental Compatibility
Physical integration is accommodated through a compact cabinet measuring W133 × H187 × D107 mm, moulded from durable white plastic. The unit is supplied with an adjustable, movable mounting bracket that supports both vertical and horizontal wall installations. This flexible mounting hardware facilitates precise directional alignment toward target listening zones in retail showrooms, restaurants, financial institutions, and corporate facilities.
The weather-resistant enclosure construction ensures structural stability and reliable acoustic output across diverse indoor and sheltered outdoor environments, maintaining high-fidelity audio performance in spaces requiring unobtrusive, compact surface-mount loudspeakers.
