DVS 4T (EN 54) Surface Mount Loudspeaker

The DVS 4T (EN 54) is a versatile and ultra-compact surface mount loudspeaker, designed for both indoor and outdoor sound reinforcement applications. With 160 watts of peak power, this loudspeaker delivers clear and impactful audio in various settings such as theme parks, hotels, restaurants, retail stores, corporate AV environments, residential developments, and houses of worship. The speaker’s EN 54-24 certification also ensures compliance with fire detection and alarm system standards, making it an ideal choice for ensuring safety.

Features

• Full range surface-mount loudspeaker for indoor and outdoor installations
• 40 Watts continuous, 160 Watts peak power
• 4″ mineral loaded polypropylene driver with nitrile rubber surround
• 0.75″ ferrofluid cooled soft dome neodymium high frequency driver
• 110° constant directivity dispersion for wide coverage
• EN 54-24 certified for fire detection and fire alarm systems
• UV and weather resistant UL 94 V-0 ABS enclosure
• Multiple transformer taps for 70 V and 100 V line systems
• Low insertion loss 30 W line transformer with tamper-resistant tapping switch
• Weather resistant components rated to IP64 for outdoor use
• Sleek, durable semi-matt black paint finish
• Perforated aluminium mesh grille with dust protection
• Yoke bracket included for easy installation

Specifications

Performance	Details
Frequency response (-3 dB)	75 Hz – 20 kHz
Frequency response (-10 dB)	60 Hz – 30 kHz
Rated sensitivity (1 W, Lo Z)	84 dB
Sensitivity as per EN54 (4 m, through transformer)	70 dB
Directivity factor (Q)	6.5 averaged 1 kHz to 10 kHz
Directivity index (DI)	5.3 averaged 1 kHz to 10 kHz

Power Handling	Details
Average	40 W
Programme	80 W
Peak	160 W
Recommended amplifier power	80 W @ 6 Ω
Nominal Impedance (Lo Z)	6 Ω
Maximum SPL as per EN54 (4 m, through transducer)	85 dB

Rated Maximum SPL (1 m, Lo Z)	Details
Average	100 dB
Peak	106 dB

Transformer Taps (Via Front Rotary Switch)	Details
70 V	30 W (165 Ω) / 15 W (330 Ω) / 7.5 W (660 Ω) / 3.75 W (1320 Ω) / OFF & low impedance operation
100 V	30 W (330 Ω) / 15 W (660 Ω) / 7.5 W (1320 Ω) / OFF & low impedance operation
Crossover point	3.9 kHz – 2nd order LF, 2nd order HF

Coverage Angles	Details
500 Hz	360° horizontal, 360° vertical
1 kHz	196° horizontal, 165° vertical
2 kHz	127° horizontal, 148° vertical
4 kHz	179° horizontal, 177° vertical

Transducers	Details
Low frequency	100 mm (4″) mineral loaded cone material
High frequency	19 mm (0.75″) coaxially mounted

Physical	Details
Enclosure	ABS
Grille	Aluminium, painted
Transformer setting	Rotary switch
Connectors	Removable locking connector with screw terminals with “loop through” facility
Dimensions	277 x 170 x 166 mm (10.9 x 6.7 x 6.5″)
Net weight	2.8 kg (6.2 lbs)
Shipped weight	3.4 kg (7.5 lbs)
Included accessories	Yoke bracket
Packed quantity	2