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The D 8A is the active version of the D 8 offering integrated Class-D power amplifiers, an electronic crossover and loudspeaker equalization.
The D 8A is ideal when combined with active subwoofers for the creation of very compact, active 3-way high-powered systems. For the low- and high frequency ranges, 2x 200 W RMS are available. The maximum overall amplifier output comes to 800 W. The frequency-range is 56 Hz - 20 kHz and the max. SPL is 123 dB / 1m)
The Line input is implemented as an XLR/jack combo socket. In addition an XLR microphone input with a separate level control is available. For operation with powered subwoofers, a switchable low-cut filter is provided.
The extensive range of optional accessories allows virtually unlimited use in fixed installations or flown configurations.
Cabinet Fullrange
Configuration Powered 2-Way
Components 8" / 1“
Rated Power RMS 200 W LF / 200 W HF
Max. Amplifier Output Capability 400 W LF / 400 W HF
max. SPL / 1m 123 dB
Frequency Range (-10 dB) 56 Hz - 20 kHz
Radiation-Pattern H x V 90° x 90°
Dimensions mm (W x H x D) 282 x 442 x 259
Weight 9 kg
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Features
- Powered 2-way, full-range system
- 8″ bass loudspeaker
- Compression driver with titanium diaphragm
- Multiple mounting options
- Stand mountable
The DR-508A is powered full-range system that uses a new 8” low frequency transducer. The M-34 compression driver handles high frequency reproduction.
The 1000 W peak power Class D amplifier provides extended bandwith, improved dynamic range and exceptionally low distortion. This makes the DR-508A one of the smallest and most powerful portable cabinets on the market.
Technical Data
Nominal Amplifier Power | 1000 W peak, 500 W continuous
Class D, Biamplified | Frequency Range (-10 dB) | 60 Hz-20 kHz | Rated Peak SPL at 1 m | 122 dB | Dispersion | 90º x 45º | Enclosure Material | Polypropylene | Color/Finish | Black | Connectors | IN: Female XLR
LOOP THRU: Male XLR
AC IN: powerCON | AC Requirements | 115 V, 50/60 Hz
230 V, 50/60 Hz | Current Draw (1/3 power @ 230 V) | 1.2 A | Dimensions (H x W x D) | 45 x 30 x 30 cm
18 x 12 x 12 in | Weight | 11.4 kg (25.1 lb) |
| MASTER AUDIO SB200B 2-way Active Speaker2-way 8\'\'+1\'\' 150Wrms
- 2-way BI-AMPLIFIED speaker box
- Power output 150 W RMS
- ABS box
- Woofer 8“, paper cone
- Compression driver, 1" titanium diaphragm
- Frequency response : 30Hz-20KHz
- SPL(1W/1m) : 108±2 dB
- Dimensions (H x W x D) : 365 x 245 x 200 mm
- 9 kg
| User´s Manual
Technical drawing
LD Systems STINGER 28 A G3
Active 2 x 8" 2-way bass-reflex PA speaker
- Active 2 x 8" 2-way bass-reflex PA speaker
- 131 dB max. SPL and 500-watt RMS performance with a highly-efficient digital amplifier
- Perfect all-rounder for full-range, satellite and monitor applications
- Practical presets for fast and user-specific frequency tuning
- Homogeneous dispersion pattern thanks to a BEM-optimised tweeter wave guide
- Two 8" custom woofers and BMS tweeter driver
- Distortion-free sound at even maximum volumes, thanks to DynX® DSP technology
- 2 line/mic input channels with individual gain controllers plus mono mix output
- Birch plywood housing with ultra-robust polyurea coating and M10 rigging points
- Shock-resistant front grille for optimum speaker protection
- 36 mm dual tilt stand attachment with 0° and 5° tilt angle
- Extensive and smart accessories for installation and transport
This highly professional 2-way active system is designed for absolute, long-term reliability. With its rugged bass reflex housing and finely tuned, user-friendly presets, it is suitable for use as a full-range speaker, satellite or monitor. The Stinger® 28 A G3 is powered by a highly efficient Class-D amplifier with a powerful 500-watt continuous output. Its two specially developed 8" woofers and a BMS tweeter driver achieve a powerful bass response and fresh, natural trebles. The wave guide of the tweeter has been developed using the Boundary Element Method (BEM), a numerical simulation of the sound radiation and dispersion. It reduces reflection from floors and ceilings and prevents sidelobe levels, thus achieving controlled and homogeneous dispersion.
LD Systems’ proprietary DynX® DSP technology means that the Stinger® 28 A G3 delivers perfect performance with maximum clarity and power under all conditions. The signal processing of the crossover function and the multi-band limiter achieve an optimal runtime and high freedom from distortion. Designed as an all-around workhorse, the housing of the speaker is made of robust birch plywood. An extremely resilient coating of polyurea offers exceptional robustness and durability. The features include a steel front grille, a dual-tilt stand attachment, flight points and ergonomic handles. The Stinger® 28 A G3 is a good value and attractive solution for professional sound systems, with extensive accessories that support usage on the stage and in fixed installations.
Product type
PA loudspeaker
Type
active
Low/mid driver dimensions
2 x 8 "
Woofer size
2 x 203.2 mm
Woofer magnet
Ferrite
Woofer brand
Custom-made
Woofer voice coil
2 "
Woofer voice coil (mm)
50.8 mm
Horn
BEM optimized CD Horn
HF driver dimensions
1 "
HF Driver Size
25.4 mm
HF driver magnet
Ferrite
HF driver brand
BMS
HF driver voice coil
1 "
HF Driver Voice Coil
25.4 mm
Amplifier
Class D
Dispersion (H x V)
90 x 50 °
RMS
500 W
Peak power
1000 W
Frequency response
58 - 20000 Hz
Max. SPL (peak)
131 dB
Protection circuits
Multiband limiter , over voltage , over-current , thermal overload
Input sensitivity
-5 dBu
Controls
2 x gain , 2 x Mic/Line , Mode
Indicators
Limit , Mode , On , Protect (protection circuit engaged) , Signal
Line inputs
2
Line input connectors
6.3 mm jack , XLR
Line outputs
1
Line output connectors
XLR
Operating voltage
100 - 120 V / 50 - 60 Hz or 200 - 240 V / 50 - 60 Hz (automatic switching)
Operating Temperature
0 - 40 °C
Relative Humidity
< 80% (non-condensing)
Cabinet material
12 mm Plywood
Cabinet surface
Polyurea
Cabinet construction
vented
Width
270 mm
Height
756 mm
Depth
290 mm
Weight
20,5 kg |
Frequency response (-3 dB) 1 |
60 Hz to 20 kHz |
Frequency range (-10 dB) 2 |
50 Hz to 20 kHz |
Max. SPL 3 |
121 dB |
Coverage angle (H x V) |
100° x 100° |
Amplifier rating |
400 W |
LF transducer |
8 in. woofer - ferrite magnet |
HF transducer |
1 in. titanium dome, neodymium magnet, ferro-fluid cooled |
Crossover frequency |
2.5 kHz |
Connectors |
2 - XLR/TRS Combo
1 - 3.5mm Stereo
1 - Charge port
1 - TRS footswitch
1 - 12 V DC power output |
Enclosure |
Polypropylene |
Grille material |
Powder coated steel |
USB charging |
1.5 A max., device-dependent |
Color |
Black & white |
Dimensions (H x W x D) |
400 mm x 275 mm x 272 mm
15.75 in. x 10.83 in. x 10.71 in. |
Net weight |
7.6 kg
16.8 lb |
Shipping weight |
11 kg
24.3 lb |
Power consumption 4 |
100 - 240 V~, 50 - 60 Hz, 0.8 - 0.6 A |
Battery capacity |
86.4 Wh |
Battery run time (at max output) 5 |
6+ hours |
Battery run time (at moderate output) 6 |
12+ hours |
1 Full space measurement using music DSP preset.
2 Half-space measurement.
3 Maximum SPL is measured at 1 m using broadband pink noise at maximum output.
4 Current rating is 1/8 power.
5 Maximum output before loudspeaker limit indication, with typical program material.
6 Moderate output is approximately 95 dB SPL, with typical program material.
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Features
400 Watt digital bi-amplification
126 dB max spl
Wide dispersion 90 x 70 constant directivity horn
8" High power neodymium woofer, 2.5" voice coil
1" Mylar dome, neodymium high frequency driver
DSP processing, boost eq, soft limiter and protection
Xlr/jack input, xlr signal output
Acoustical Specifications
Frequency Response -3 dB: 65 Hz ÷ 20 kHz
Max SPL: 126 dB
Horizontal coverage angle: 90°
Vertical coverage angle: 70°
Compression Driver: 1" neo, 1.4" voice coil
Woofer: 8" neo, 2.5" voice coil
Input/Output Section
Input signal: bal/unbal
Input connectors: xlr - Jack
Output connectors: xlr
Processor Section
Crossover frequencies: 1800 Hz
Limiter: Fast limiter, RMS limiter
Controls: Flat, Boost
Amplifier Specifications
Total power: 400 W
High frequencies: 100 W
Low frequencies: 300 W
Connections: VDE
Cabinet
Cabinet Material: Composite PP
Hardware: 2 x M10 flying points
Handles: 1 on top
Pole Mount/Cap: Yes
Grille: Steel
Colour: Anthracite grey
Physical Specifications
Height: 480/18.9 mm/inch
Width: 291/11.45 mm/inch
Depth: 274/10.7 mm/inch
Net Weight: 9.2/20.28 kg/lbs
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