ตู้ลำโพง ยี่ห้อ TANNOY รุ่น VQ 85DF
2 Way Down-Firing Dual Concentric Mid-High Loudspeaker for High Performance Installation Applications
Product Features
- 2 way down-firing mid-high loudspeaker for high performance installation applications
- 200 Watts continuous, 800 Watts peak power
- Dual Concentric 3.5″ and 1.75″ diaphragm compression drivers for mid and high frequency reproduction
- Patented PSW waveguide technology provides acoustic centre alignment for coherent wavefront horn throat
- Phase coherent point source provides exceptional transient response and dispersion control
- Provides even coverage to areas immediately below main flown loudspeakers
- 80° x 50° dispersion allows installation of tightly packed point-source clusters
- Precise time alignment eliminates interference from multiple driver sources
- User configurable for passive and bi-amp operation
- Extremely high efficiency design provides high SPL for modest power input
- Modular design for versatile and compact cluster configurations
- Internally braced birch plywood enclosure
- Finished with hard wearing semi matt black paint
- Rugged powder coated perforated steel mesh grille
- Integral M10 rigging points for ease of installation
- 2 handles ergonomically integrated into cabinet
- Optional vertical flyware with 10:1 safety ratio (available separately)
- speakON NL4 and barrier strip connectors for input and link output
- Designed and engineered in the U.K.
Specification
Performance
| System Type | 2-Way Mid/High – Point Source |
| Frequency Response (-3 dB) (1) | 400 Hz – 23 kHz |
| Frequency Range (-10 dB) (1) | 350 Hz – 27 kHz |
| Operating Modes | Single Amplified Bi-Amp (MF,HF) User Configurable |
| Dispersion (-6 dB) | 80 x 50 degrees |
| Directivity Factor (Q) | 13.3 averaged 1 kHz to 10 kHz |
| Directivity Index (DI) | 11.2 averaged 1 kHz to 10 kHz |
System Sensitivity & Operating Freq. (1 W @ 1 m) <sup>2</sup>
| Single Amplified – Passive Mid/High Frequency (450 Hz – 23 kHz) | 111 dB (2.83 V @ 8 Ohms) |
| Bi-Amp – MF (450 Hz – 7 kHz) | 110 dB (2.83 V @ 8 Ohms) |
| Bi-Amp – HF (7 kHz – 23 kHz) | 111 dB (2.83 V @ 8 Ohms) |
| Driver Complement | |
| Driver Complement Mid/High Frequency | Dual Concentric |
| Crossover | Single Amplified – 7 kHz (passive) Bi-Amp 7 kHz (active) Recommended High Pass Filter @ 400 Hz |
| Rated Maximum Spl <sup>2</sup> | |
| Mid Frequency | Average: 134 dB Peak: 140 dB |
| High Frequency | Average: 133 dB Peak: 139 dB |
| Passive Mid/High Frequency | Average: 134 dB Peak: 140 dB |
Distortion
| 110 dB SPL | 2nd Harmonic 500 Hz: 2.165%, 2 kHz: 1.507%, 5 kHz: 1.308% 3rd Harmonic 500 Hz: 0.773%, 2 kHz: 0.123%, 5 kHz: 0.161% |
| 115 dB SPL | 2nd Harmonic 500 Hz: 3.487%, 2 kHz: 2.553%, 5 kHz: 2.252% 3rd Harmonic 500 Hz: 0.997%, 2 kHz: 0.212%, 5 kHz: 0.326% |
| 120 dB SPL | 2nd Harmonic 500 Hz: 5.895%, 2 kHz: 4.400%, 5 kHz: 3.882% 3rd Harmonic 500 Hz: 1.558%, 2 kHz: 0.374%, 5 kHz: 0.789% |
| 125 dB SPL | 2nd Harmonic 500 Hz: 11.482%, 2 kHz: 7.516%, 5 kHz: 6.871% 3rd Harmonic 500 Hz: 5.364%, 2 kHz: 0.897%, 5 kHz: 2.972% |
Recommended Amplifier Power <sup>3</sup>
| Mid Frequency | 400 W into 8 Ohms |
| High Frequency | 200 W into 8 Ohms |
| Passive Mid/High Frequency | 400 W into 8 Ohms |
| Power Handling 3 | |
| Mid Frequency @ 8 Ohms | Average: 200 W (40 V) Programme : 400 W |
| High Frequency @ 8 Ohms | Average: 90 W (27 V) Programme : 180 W |
| Passive Mid/High Frequency @ 8 Ohms | Average: 200 W (40 V) Programme : 400 W |
Nominal Impedance
| Mid Frequency | 8 Ohms (6.5 Ohms minimum) |
| High Frequency | 8 Ohms (8.5 Ohms minimum) |
Construction
| Enclosure | 18 mm (0.71″) birch plywood, internally steel braced |
| Grille | Powder coated perforated steel grille |
| Finish | Textured black or white paint (custom colours on request) |
| Connectors | Barrier strip and Neutrik NL4 |
| Fittings | 2 x Recessed carrying handles 11 x M10 flying inserts |
| Dimensions (H x W x D) | 500 x 694 x 515 mm (19.69 x 27.32 x 20.28″) |
| Net Weight (ea) | 27.0 kg (59.4 lbs) |
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