ลำโพงเพดาน OPTIMAL AUDIO UP 4 ขนาด 4 นิ้ว 2 ทาง 30 วัตต์ แบบ 8 โอห์ม หรือ 70/100 โวลต์ ให้การครอบคลุมที่สม่ำเสมอและเสียงที่คมชัด จากแบรนด์ OPTIMAL AUDIO
OPTIMAL AUDIO UP 4
Two-way passive, full-range 4” ceiling speaker
Up 4 is a discreet, two-way 4” ceiling speaker delivering consistent coverage and full frequency sound to a wide range of cost conscious, commercial environments — from hotels and concourses to retail outlets, bars and restaurants.
An integral fixing system is included to achieve a simple and clean installation. Up 4 has a steel backcan and perforated steel grille and is finished in neutral white.
Up 4 features a 4” (105mm) low frequency driver paired with a 0.7” (20mm) silk dome tweeter. It is suitable for both high quality speech and music reproduction. A conical 120° coverage pattern ensures consistent sound where it needs to go.
Each Up 4 can be run on a variety of 70 or 100 volt taps, or at low impedance. Tap selection is via a rotary switch behind the removable grille.
SmartAmps or Zone will provide optimal performance and loudspeaker protection. When coupled with the Zone series, a ZonePad and the WebApp makes setting up a system and end user control simple and intuitive.
- 4” coaxial driver
- Discreet size
- Unobtrusive design
- 8 ohm or 70/100V line operation
- Range of power taps
- Wide conical coverage pattern
- Integrated mounting hardware
| TYPE | Two-way, full range, passive, ceiling speaker |
| FREQUENCY RESPONSE (with preset) | 100Hz – 18kHz ± 3dB -10dB @ 74Hz |
| DRIVERS | LF: 4” (105mm), Coated paper HF: 1 (25mm) exit/0.7” (20mm) voice coil, Silk Dome |
| RATED POWER (AES) | 30W |
| NOMINAL IMPEDANCE | 8 Ohms |
| SENSITIVITY (1W/1m) | 87dB |
| MAXIMUM SPL | 102dB (cont), 105dB (peak) |
| CROSSOVER | 3.5kHz passive |
| RECOMMENDED HIGH-PASS FILTER | 24dB/octave @ 90Hz |
| TRANSFORMER TAPS @ 70V | 25, 12.5, 6.3, 3.2W |
| TRANSFORMER TAPS @ 100V | 25, 12.5, 6.3W |
| DISPERSION (-6dB) | 120˚ conical |
| BACK CAN | Zinc-plated Steel |
| BAFFLE | ABS |
| PROTECTIVE GRILLE | Perforated steel |
| FIRE RATING | UL94-V0 UL94-5VB |
| CONNECTORS | Ceramic block, brass inserts |
| FITTINGS | C-ring support backing plate |
| DIMENSIONS | (W) 202mm x (H) 227.5mm x (D) 202mm (W) 7.95” x (H) 8.96” x (D) 7.95” |
| WEIGHT | 2.2kg (4.9lbs) |
