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 |
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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Power Output Level R-150 PLUS
STEREO
8ohm(T.H.D 0.05%) 50W+50W
4ohm(T.H.D 0.05%) 75W+75W
BRIDGED MONO
8ohm(T.H.D 0.05%) 50W
8ohm(T.H.D 0.5%) 170W
Frequency Response 20Hz- 20kHz, ±0.5dB
Convection Cooled
SoftStart Protection System
Balanced 10kΩ@0.775V Inputs
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- Rack mount stereo powered monitor speaker system
- New AES/EBU digital input
- lndependent MUTE function
- Sophisticated control panel section
- Ideal where space is at a premium
RM-2 is the ideal solution for monitoring needs in various space-challenged environments such as machine rooms, VTR monitoring, surveillance, mobile and stationary control rooms, theme park applications where audio monitoring is needed and the room for installation is not enough. Adding these new feature sets, RM-2 is now more versatile to various applications. - Stereo analog balanced +4DBu inputs with combo connectors (XLR & 1/4" plug).
- AES/EBU digital input with XLR connector working with fs 44.1kHz to 96kHz.
- Sophisticated control panel section including 26-dot stereo LED meter, biaxial stereo gain control, phone jack, Channel select switch as well as Input select switch.
- Independent MUTE function by holding down CH SEL key for a while.
- Auto Mute when powering on*.
- D-class power amplifier (10W x 2) for clear sound reproduction and light weight construction.
- Multi-voltage power supply.
Speaker Section
- Unit: 110 x 40mm cone type, magnetically shielded, x 2
- Impedance: 8 ohms
- Output SPL: 84 dB/W (1m)
- Frequency response: 200Hz to 20kHz
Amplifier Section
- Rated output power: 10W or more (8 ohms, 1kHz)
- Residual noise: -60 dBV or less (DIN AUDIO)
- Distortion: 0.5% or less (10W / 4 ohms, 1kHz)
Digital input
- Connector: XLR-3-31 type
- Digital input Format: IEC60958 (AES/EBU)
- Digital inputSampling frequency: 44.1kHz to 96 kHz
Analog input
- Connector: XLR / 1/4" combi-jack
- Analog input Nominal input level +4dBu (XLR), -10 DdBV (1/4“)
- Analog input Input impedance 10k ohms or more
Phones
- Connector: 1/4" stereo jack
- Applicable load imp. 8 ohms or more
- Rated output power 20mW + 20mW (32 ohms, 1kHz)
General
- External dimensions: 430(W) x 44(H) x 282(D) mm
- Weight: Approx. 3.5kg
- Power requirement: 100 - 240V~, 50/60Hz
- Power consumption: 10W
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Power Output Level R-300 PLUS
STEREO
8ohm(T.H.D 0.05%) 170W+170W
4ohm(T.H.D 0.05%) 250W+250W
BRIDGED MONO
8ohm(T.H.D 0.05%) 460W
8ohm(T.H.D 0.5%) 500W
Frequency Response 20Hz- 20kHz, ±0.5dB
Convection Cooled
SoftStart Protection System
Balanced 10kΩ@0.775V Inputs
| L1400 450W-450W 4ohm (280W-280W8ohm)
COMPACT MODERN DESIGN
Compact size (2U-Rack Height) with up to 1200W per channel@2ohms
these amps save valuable rack space without compromising power output.
HIGH CURRENT TOROIDAL TRANSFORMER
A high-current toroidal transformer saves rack space
and minimizes hum and noise.
EXCELLENT SOUND QUALITY
The low T.H.D.(0.05%) and high damping factor (400 or higher)
gives excellent sound quality.
2 STAGE POWER SUPPLY
The high-power units (L1800 and L2400) have a 2-Stage Class-H design
that maximizes their performance.
EQUIPPED WITH 30Hz or 50Hz HPF
All amplifiers are equipped with high-pass filters on each channel to
help maintain sound quality, yet help protect the loudspeakers.
EXTENSIVE PROTECTION CIRCUITS
Extensive protection circuits monitor over voltage/current conditions, overheating,
output shorts, and DC voltage to improve performance and reliability.
CLIP-LIMITER CIRCUITS
Clip-limiters on each channel are provided to help prevent
distortion due to excessive signal levels.
L.E.D FUNCTION DISPLAYS
Power, Clip limiter, Signal, Protection, Mode (Parallel/Stereo/Bridged)
LEDs on the front panel indicate the status of the unit in operation. |
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