amperes electronics
Professional Public Address (PA) System Manufacturer
LH100
100W 100V Long Throw Tunnel Horn Speaker
LH100 is a high power directional horn speaker designed for tunnel EVAC systems and long-distance announcements. Tested for high SPL and STIPA performance.
100W 100V high power horn driver for strong audio output
Clear SPL with controlled sound dispersion angle
Suitable for outdoor installations
IP54 fire retardant fiberglass body with rustproof brackets
Introduction
LH100 is a 100W 100V high-power long throw directional horn speaker designed for tunnel EVAC systems for long-distance announcements. It can also be used for early warning of disasters such as tsunamis, and mosque (masjid) minarets for long throw sound applications. It delivers clear SPL with controlled sound dispersion angle and asymmetric vertical throw to reduce echo and reverberation from ventilation fans and moving vehicles with its high-power 100W driver. Built to withstand harsh environments, it features a fire-retardant fiberglass body and rustproof mounting brackets made of stainless steel and aluminium, ensuring resistance against chemical fumes, humidity, saline vapours and corrosion. Its IP54 rating makes it ideal for outdoor installation.
Introduction
LH100 is a 100W 100V high-power long throw directional horn speaker designed for tunnel EVAC systems for long-distance announcements. It can also be used for early warning of disasters such as tsunamis, and mosque (masjid) minarets for long throw sound applications. It delivers clear SPL with controlled sound dispersion angle and asymmetric vertical throw to reduce echo and reverberation from ventilation fans and moving vehicles with its high-power 100W driver.
Built to withstand harsh environments, it features a fire-retardant fiberglass body and rustproof mounting brackets made of stainless steel and aluminium, ensuring resistance against chemical fumes, humidity, saline vapours and corrosion. Its IP54 rating makes it ideal for outdoor installation.
LH100
Power
Power rating
100W 100V line
Power tapping (100V line)
50 / 75 / 100W
Max power
120W 100V line
Driver
Detachable driver with 1 3/8" thread
Primary Impedance (Ohm)
100 / 133 / 200 Ohm
Secondary impedance - Driver (Ohm)
16 Ohm
Frequency Response
350 Hz - 7 kHz (-10 dB)
SPL @ 1W/m (± 3 dB), 1 kHz
115 dB
Max SPL
135 dB
Horizontal Dispersion (1 kHz)
56°
Vertical Dispersion (1 kHz)
25° (Top) ; 60° (Bottom)
Operating temperature
-10°C to 60°C
Physical Specifications
Housing
FR-rated fiberglass
Mounting brackets materials
Rustproof aluminium and stainless steel
Mounting
Ceiling mount
Overall size w/ bracket
730 (W) x 385 (H) x 1565 (D) mm
Net weight
6.50 kg (Excluding driver) 13.60 kg (Including diver)
Color
White / Black
IP Rating
IP54
Note: The specification parameters may be changed, added, or omitted without prior notice. Last updated on 3 Mar 2026.
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Powerful 100W 100V driver for strong audio output
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Engineered specifically for tunnel applications for long-distance EVAC announcements
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Ideal for long-range warning systems, including early warning of disasters such as tsunamis, and mosque (masjid) minarets etc
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Highly directional horn with optimized asymmetrical sound dispersion
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Delivers high SPL with clear voice announcements, max SPL at 135dB@1m 1 KHz
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IP54-rated fire-retardant fiberglass enclosure with rustproof mounting brackets made of stainless steel and aluminium
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Flare opening covered to prevent insects, birds, and debris from entering
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Suitable for outdoor installations
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Registered association members of
International recognitions
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Payment
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Sales Office (Malaysia)
70, Jalan Industri PBP 3,
Taman Perindustrian Pusat Bandar Puchong,
47100 Puchong, Selangor, Malaysia.
Tel: +603-5882 7757 / 7758
Production Factory (Malaysia)
2, Jalan Meranti Puchong D25@Meranti Puchong
47120 Puchong, Selangor, Malaysia
Export Sales Office (Singapore)
Amperes Asia Pte Ltd
(Co Reg: 201102253E)
1, North Bridge Road, #13-03, High Street Centre, Singapore 179094
Amperes Electronics Sdn Bhd
Registration No: 200001006420 (509025-X)
Your Trusted PA System Manufacturer since 1999
Sales Office (Malaysia)
70, Jalan Industri PBP 3,
Taman Industri Pusat Bandar Puchong
47100 Puchong, Selangor, Malaysia.
Tel: +603-5882 7757 / 7758
Production Factory (Malaysia)
2, Jalan Meranti Puchong D25@Meranti Puchong 47120 Puchong, Selangor, Malaysia
Export Sales Office (Singapore)
Amperes Asia Pte Ltd
(Co Reg: 201102253E)
1, North Bridge Road, #13-03, High Street Centre, Singapore 179094