คำอธิบาย
d&b audiotechnik 21S-SUB Installation Compact Subwoofer 21″ 650/2600W
ลำโพงซับเบส d&b audiotechnik สำหรับงานติดตั้ง d&b 21S ในตระกูล xS-Series เป็นตู้ซับเบสที่มีขนาดดอกลำโพง 21″ driver with neodymium magnet, ทนกำลังขับ 650/2600 W (RMS/peak 10 ms) impedance 4 Ω, Max SPL 132 dB ตอบสนองความถี่ (–5 dB standard) 35 Hz – 105 Hz, Max SPL 135 dB
The 21S-SUB is a high performance subwoofer for use with the xS-Series and xA-Series loudspeakers and is intended for a wide range of permanently installed applications. The cabinet houses a single long excursion 21″ driver in a bass-reflex design. The large, specially shaped reflex port enables the 21S-SUB to achieve high Sound Pressure Levels from a cabinet with a small footprint.
When operated in INFRA mode, the 21S-SUB can be used to complement other d&b subwoofers by extending the frequency response of the system down to 33Hz. The 21S-SUB can be ground stacked or flown in either orientation. It can be flown individually or in a cluster of two cabinets.
The enclosure is constructed from marine plywood with an impact resistant black paint finish. The front of the loudspeaker cabinet is protected by a rigid metal grill backed by an acoustically transparent foam. The top, bottom and rear panels each incorporate a pair of M10 threaded inserts for attaching d&b rigging hardware.
The Weather Resistant option enables the operation of loudspeakers in changing ambient conditions, and features a fixed cable. The 21S-SUB can also be supplied in any RAL colour. This Special Colour option can be provided for rigging accessories.
Features:
- Installation specific high performance subwoofer with compact footprint
- 21″ driver with neodymium magnet
- Power Handling Capacity (RMS/Peak 10 Ms) 650/2600 W
- ตอบสนองความถี่ (–5 dB standard) 35 Hz – 105 Hz
- Nominal impedance 4 Ω
- Max SPL 135 dB
Amplifiers recommended:
The d&b audiotechnik loudspeaker range is designed exclusively for operation with d&b amplifiers. These provide power as well as comprehensive control and protection functions tailored to achieve the performance, reliability and longevity associated with the d&b System approach.
**The d&b 30D amplifier is recommended to drive the 21S-SUB. The d&b D20 and D80 amplifiers can also be used with the appropriate loudspeaker configuration selected.
