d&b audiotechnik 21S-SUB: 21 Inch High Performance Passive Installation Subwoofer
Model
:
21S-SUB
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d&b audiotechnik 21S-SUB 21 Inch High Performance Passive Installation Subwoofer
The d&b audiotechnik 21S-SUB is a high performance subwoofer for xS-Series and xA-Series loudspeakers in permanent installations. A long excursion 21 inch driver and a specially shaped reflex port deliver high SPL from a small footprint, and INFRA mode extends a system down to 33 Hz. Trianze Tech supplies the 21S-SUB for installed sound projects in Dubai, Abu Dhabi and across the UAE and GCC.
Key Features:
- Single long excursion 21 inch neodymium driver
- Specially shaped reflex port for high SPL from a small footprint
- INFRA mode extends system response down to 33 Hz
- Ground stacked or flown in either orientation
- Fly individually or in a cluster of two cabinets
- M10 threaded inserts on top, bottom and rear panels
Technical Specifications:
| Spec | Value |
|---|---|
| Model | 21S-SUB |
| Type | Installation high performance subwoofer, passive |
| Driver | 21 inch neodymium, long excursion |
| Frequency Response (-5 dB) | 35 to 105 Hz standard, 33 to 85 Hz INFRA mode |
| Max SPL | 134 dB (D20/30D), 135 dB (D80) |
| Nominal Impedance | 4 ohms |
| Power Handling (RMS/peak) | 650/2600 W |
| Cabinets per Amplifier Channel | 1 |
| Dimensions (H x W x D) | 43.3 x 22.8 x 20.7 inches (approx.) |
| Weight | 54 kg (119 lb) |
Why Buy the d&b audiotechnik 21S-SUB from Trianze Tech?
- Genuine d&b audiotechnik equipment with local UAE support from the Trianze Tech audio team
- System design help matching the 21S-SUB with compatible d&b loudspeakers, amplifiers and rigging
- Fast delivery across Dubai, Abu Dhabi, the wider UAE and the GCC
- Pre-sales guidance for touring, live event and installed sound projects
Frequently asked
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The d&b audiotechnik 21S-SUB covers 35 Hz to 105 Hz (-5 dB) in standard mode, and 33 Hz to 85 Hz in INFRA mode.
INFRA mode lets the d&b audiotechnik 21S-SUB complement other d&b subwoofers by extending the system frequency response down to 33 Hz.
The d&b audiotechnik 21S-SUB reaches 134 dB maximum SPL with a D20 or 30D amplifier, and 135 dB with a D80.
The d&b audiotechnik 21S-SUB has a 4 ohm nominal impedance, handles 650 W RMS and 2600 W peak, and runs one cabinet per amplifier channel.
Yes. The d&b audiotechnik 21S-SUB can be ground stacked or flown in either orientation, individually or in a cluster of two cabinets.
Trianze Tech supplies the d&b audiotechnik 21S-SUB in Dubai with fast delivery across the UAE and GCC. Call +971 58 161 3661 or message us on WhatsApp for the best price and current stock availability.