L-457THS/L-657THS/L-857THS 4"/6.5"/8" Frameless Coaxial 2-way Ceiling Speaker with Iron Back Cover and Power Taps
Optimize your public address and high-quality background music systems with these ceiling-mounted speakers.
Featuring a feather-edged magnetic iron grille and a high-strength fireproof iron rear cover, these speakers are built for durability and safety.
They offer versatile 70V/100V and 8Ω inputs with adjustable power taps:
L-557THS: 2.5/5/10/20W (4"+0.75")
L-657THS: 3.75/7.5/15/30W (6.5"+1")
L-857THS: 7.5/15/30/60W (8"+1")
Choose from 4", 6.5", and 8" PP cone woofers, paired with a 1" silk coaxial dome tweeter for exceptional sound.
Ideal for indoor environments, these CE-certified speakers deliver superb audio performance.
Model | L-457THS | L-657THS | L-857THS |
Rated power | 20W(100V) 20W(8Ω) |
30W(100V) 30W(8Ω) |
60W(100V) 80W(8Ω) |
Power taps | 2.5/5/10/20W 8Ω: 20W |
3.8/7.5/15/30W 8Ω: 30W |
7.5/15/30/60W 8Ω: 80W |
Line input | 70V/100V/8Ω | ||
Sensitivity (1m,1W) | 88±3dB | 88±3dB | 94±3dB |
Frequency response | 200-18KHz | 130-17KHz | 55-20KHz |
Woofer speaker driver | 4" PCK+PE | 6.5" Paper | 8" Paper |
Tweeter speaker driver | 3/4" silk | 1" silk | 1" silk |
Product dimension (mm) | Φ204x165 | Φ267x162 | Φ320x245 |
Hole for mounting (mm) | Φ180 | Φ240 | Φ292 |
Frame material | ABS | ||
Back cover material | Iron | ||
Grille material | Powder coated Iron mesh | ||
Color | White (RAL9016) | ||
Product net weight (Kg) | 2.2 | 3.3 | 5.3 |
Gross weight | 18Kg/4pcs | 18.65Kg/4pcs | 15.52Kg/2pcs |
Packing dimension (cm) | 58x55x28 | 65x34x53.5 | 80x41x38 |