| Content | PA Power Amplifier 2 x 150 W 4 Ohm
User's manual
LD Systems DJ300 Power Amplifier
The DJ300 is a value-priced, full-featured Class AB power amplifier with an output of 150W per channel @ 4 ohms and 250W in 8-ohm bridge mode. Its sturdy construction paired with low weight makes it perfect for DJs in mobile use and smaller permanent installations.
It has extensive protection circuitry, a low-noise cooling fan, and a power-on delay. It uses XLR and stereo TRS sockets as inputs and Speakon-compatible sockets and heavy-duty screw terminals as outputs. A ground lift switch helps eliminate ground loop hum. LEDs on the front panel next to the volume controls indicate functional status, overloading, and triggering of the protection circuit.
The DJ300 functions in the entire frequency range of 20Hz - 20kHz with high dependability, dynamics, and impulse fidelity.
Product type
Power Amplifiers
Type
PA Power Amplifiers
Rated ouput power (1kHz @ 4 Ohms)
2 x 150 W
Rated ouput power (1kHz @ 8 Ohms)
2 x 100 W
Rated ouput power (1kHz @ 8 Ohms, bridged)
250 W
Output circuitry
Class A/B
Frequency response
20 - 20000 Hz
THD
0.05%
Gain
28 dB
Input sensitivity
0.85 V
Protection circuits
DC , over-current , short circuit , soft start , thermal overload
Controls
ground lift , mode , On / Off , volume
Indicators
clip , Power , protect (protection circuit engaged)
Line inputs
2
Line input connectors
6.3 mm Jack , XLR
Loudspeaker outputs
2
Speaker output connections
Speakon compatible , Terminal posts
Cooling
fan
Operating voltage
230 V AC
Width
483 mm
Height
88 mm
Depth
298 mm
Weight
8,5 kg |
- Output Power:
500W RMS Per Channel @ 4 Ohms, 1kHz, 0.1% THD
330W RMS Per Channel @ 8 Ohms, 1kHz, 0.1% THD
- Bridge Mode, Mono 820W RMS @ 8 Ohms, 1K Hz, 1% THD
- Total Harmonic Distortion: Less Than 0.1% (20Hz - 20kHz @ 8 Ohms)
- Frequency Response: (+/-01db, @rated output Power, 8 Ohms): 20Hz - 20K Hz
- Slew Rate: 15V Per usec
- Damping Factor: @ 8 Ohm: 300
- Impedance: 20 Ohms balanced / 10 Ohms unbalanced
- Cooling System: 2 individual fans
- Special Features: High/Low Pass Filter / Input Sensitivity Selector / Ground Lift; Limiter
- build in clip limiter
- Input: XLR 3pin + Jack 6,3mm
- output: Speakon + Binding post
- Dimensions (LxWxH): 360 x 482 x 88mm 2-rack mount spaces
- Weight: 15 KG.
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HPS 1500 is a 2 channel power amplifier that delivers up to 2 x 750 W RMS @ 4 Ω (1500 W RMS bridged @ 8 Ω).
XLR inputs for patching in signals as well as Speakon ports for connecting speaker systems are provided for the maximum flexibility.
A forced air cooling system maintains a low operating temperature.
| Features |
|---|
| Fast response and low distortion | | Easy to configure in stereo / mono / bridge modes | | Extensive protective circuits ensure high reliability and operating safety | | Front panel signal / clip / protect LED indicators | | Minimum load impedance (stereo / mono): 4 Ohm | | XLR input connectors | | SPEAKON output connectors | | Switchable limiter | |
2 unit 19" rack, low weight for easy transportation
| AMPLIFIER SPECIFICATIONS |
|---|
| Power output stereo 4Ω: | 2 x 750 Watt rms | | | Power output stereo 8Ω: | 2 x 450 Watt rms | | | Power output bridged 8Ω: | 1500 Watt rms | | | Frequency Response: | 20 Hz ÷ 20 kHz | | | Signal/noise rate: | 106 dB | | | Damping factor: | > 300 | | | Slew rate: | 50 V/μS | |
| INPUT SECTION |
|---|
| Input connector: | xlr | | | Input sensitivity: | 1.4 V (/ 32 – 26 dB) dBm/V RMS | | | Input impedance: | 20 kΩ (balanced), 10 kΩ (unbalanced) kΩ | |
| OUTPUT SECTION |
|---|
| Output connector: | Speakon | |
| SYSTEM PARAMETERS |
|---|
| Cooling: | Forced | | | Amplifier class: | H | |
| POWER REQUIREMENT |
|---|
| Operating voltage: | 220 ÷ 240 V (50 / 60 Hz) V ~ Hz | |
| PHYSICAL SPECIFICATIONS |
|---|
| Height: | 88/3.4 mm/inch | | | Width: | 482/18.9 mm/inch | | | Depth: | 420/16.5 mm/inch | | | Net Weight: | 17/37.4 Kg/Lbs |
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InterM V-1000 Power amplifier 2Χ340W/4ohm, 2Χ180W/8ohm, 2Χ600W/2ohm bridge 1200W/4ohm 10-83kHz
high pass filter 30Ηz & 50Ηz
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The model L 500 is a 2 x 250 Watts Power Amplifier. Linear Precision Series
power amps combine excellent audio performance, modern and innovative
circuit design, meticulous and exceptionally rigid construction, and the highest
levels of operational integrity and reliability with an appropriate and more than
realistic price. The robust steel chassis provides outstanding torsional strength
through L-shaped side panels reaching under the thick aluminium front panel.
Thermal breakers prevent the power supply units from being damaged by thermal
overload. Electronically controlled fans provide sufficient front-to-rear airflow and
a special cool air diverter takes care of thermal stability. The fans? noise-level is
extremely low which provides the possibility for studio use. If necessary, a supplied
air-filter can be mounted behind the front panel ventilation louvres.
Features
* Excellent audio performance
* Symmetrical topology
* Ultra-low distortion
* Generously dimensioned power supply units
* Suitable to be operated on loads down to 2 ohms
* Suitable to drive complex loads with phase angles of ± 90 degree
* Extensive protection circuitry
* Unique Back-EMF protection
* Switchable limiters
* Switchable Hi/Lo-Cut filters
* Robust steel chassis
* Exceptional low noise front-to-rear air-flow
* XLR-type inputs and direct-outs
* LED display shows On, In, Out, Limit and Protect
* Highly reliable operation
Specs
* Max. Output Power - into 8 ohms : 2 x 180 W at 1 kHz / THD = 1.0%
* Max. Output Power - into 4 ohms : 2 x 280 W at 1 kHz / THD = 1.0%
* Max. Output Power - into 2 ohms : 2 x 320 W at 1 kHz / THD = 1.0%
* Max. Output Power - into 8 ohms bridged : 1 x 560 W at 1 kHz / THD = 1.0%
* Max. Output Power - into 4 ohms bridged : 1 x 640 W at 1 kHz / THD = 1.0%
* Rated Output Power - into 8 ohms : 2 x 175 W at 20 Hz - 20 kHz / THD = 0.1 %
* Rated Output Power - into 4 ohms : 2 x 250 W at 20 Hz - 20 kHz / THD = 0.1 %
* Rated Output Power - into 2 ohms : 2 x 300 W at 20 Hz - 20 kHz / THD = 0.1 %
* Rated Output Power - into 8 ohms bridged : 1 x 500 W at 20 Hz - 20 kHz / THD = 0.1 %
* Rated Output Power - into 4 ohms bridged : 1 x 600 W at 20 Hz - 20 kHz / THD = 0.1 %
* Frequency Response : 0 dB ..... -1 dB/20 Hz - 20 kHz
* Phase Angle Response : ± 30 degree/20 Hz.....20 kHz
* Maximum Output Level : 45 V / RMS before clipping, no load, ref. 1 kHz / THD = 1%
* Voltage Gain ref. 1 kHz : 26 dB (constant gain option)
* Input Sensitivity : 0 dBu/0.775 V, +6 dBu/1.55 V at rated output / 4 ohms ref. 1 kHz
* Maximum Input Level : +21 dBu / 8.7 V
* Input Impedance active balanced : 20 kohms
* THD at Rated Output : < 0.05 % MBW = 80.0 kHz, f = 1 kHz
* IMD -SMPTE : < 0.01 % 60 Hz, 7 kHz, at rated output
* Signal-to-Noise Ratio : >105 dB at rated output into 4 ohms,
A-weighted, RMS, input sensitivity +6 dBu
* Attenuation at rated output : > 70 dB f = 1 kHz
* Damping Factor internal 1 kHz : > 300
* DIM 30 : < 0.01 %
* DIM 100 : < 0.01 %
* Slew Rate internal : > 25 V / ?s
* Power Consumption : 300 W 1/8 rated output into 4 ohms
* Width : 483 mm
* Height : 88.1 mm
* Depth : 426 mm
* Weight : 14 kg
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These amplifiers offer high, stable power output and a high efficiency factor on the high performance level and are therefore the ideal choice for driving a multitude of mobile and club systems. SL series power amplifiers are equipped with a comprehensive protection package and dynamic limiters.
The integrated, switchable Low-Pass Notch filter (a typical DYNACORD special feature) corrects the frequency response and optimizes the transient behaviour of loudspeakers.
Maximum Midband Output Power, THD = 1%, 1 kHz, Dual Channel 2 Ω - 650 W, 4 Ω - 450 W, 8 Ω - 270 W Maximum Single Channel Output Power, Dynamic-Headroom, IHF-A 2 Ω - 1150 W, 4 Ω - 660 W, 8 Ω - 350 W Maximum Bridged Output Power, THD = 1%, 1 kHz 4 Ω - 1300 W, 8 Ω - 900 W Input Sensitivity, rated power @ 8 Ω, 1 kHz + 2,2 dBu (1,0 Vrms) Maximum Input Level +21 dBu (8.69 Vrms) Voltage Gain, ref. 1 kHz 32.0 dB Frequency Response, ref. 1 kHz 10 Hz...40 kHz (±1 dB) Output Stage Topology Class AB Dimensions (W x H x D), mm 483 x 88.1 x 421.5 Weight 12.6 kg (27.8 lbs)
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