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 |
- 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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Engineered from the ground up for unmatched quality and performance, the Crown? DSi Series of power amplifiers offers three models of 500W, 800W, and 1200W per channel at 4 ohms. Onboard digital signal processing includes crossovers, EQ filters, delay and output limiting. Rear panel HD-15 connector provides easy input/output connectivity between DSi amplifiers and the new DSi-8M System Monitor. The intuitive front panel LCD screen guides installers through a setup process? featuring presets for the industry-standard JBL cinema loudspeaker systems? to make configuration quick and easy. At the touch of a button, Crown?s DSi cinema amplifiers deliver perfectly matched performance with each award-winning JBL ScreenArray? system, making this the ultimate cinema solution.
Features : Includes three models of 500W, 800W, and 1200W per channel at 4 ohms Automatic presets for popular JBL cinema speaker systems for quick, easy configuration Intuitive front-panel LCD screen guides installers through setup Onboard digital signal processing includes crossovers, EQ filters, delay, and output limiting Computer connectivity via USB allows fast setup and configuration with HiQnet? System Architect? software Rear-panel HD-15 connector provides easy input/output connectivity between DSi amplifiers and new DSi-8M System Monitor Switch-mode universal power supply All products fill 2U rack spaces and weigh under 19 pounds Barrier strip outputs, removable Phoenix-style input Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specifications
The Crown? DSi 1000 power amplifi er shall be a solid-state two-channel model with a switch-mode universal power supply. A rear-panel HD-15 connector shall provide input/output connectivity between the DSi amplifi er and the DSi-8M System Monitor. The outputs shall be usable as stereo or bridged-mono modes of operation. The bridged-mono mode shall bridge the outputs to provide increased output voltage. Front panel controls and indicators shall include the following: Level: Detented rotary level control, one per channel. Power Switch: On/off switch applies AC power to the amplifi er. Sel/Prev/Next Buttons: Three buttons near the LCD screen shall be used to access menu items. LCD Screen: Backlit liquid crystal display shows speaker presets and signal processing. Signal Indicator: Green LED, one per channel, fl ashes when a very low-level signal is present at input. ?10 Indicator: Green LED flashes when output signal exceeds ?10 dB below clip. ?20 Indicator: Green LED flashes when output signal level exceeds ?20 dB below clip. Ready Indicator: Green LED, one per channel, illuminates when the amplifi er is ready to produce audio. Clip Indicator: Red LED, one per channel, turns on at the threshold of audible distortion. Temp/Fault Indicator: Red LED, one per channel, illuminates under Fault or excessive temperature conditions. Power Indicator: Blue LED illuminates when the amplifi er has been turned on and has power. Rear panel controls and connectors shall include the following: AC Line Connector: NEMA 5-15P (15A). Input Connector: Two 3-pin removable Phoenix-type connectors each accept a balanced line-level input signal. Output Connectors: 4-position barrier strip with connectors for dual louspeakers or bridge-mono loudspeaker. HiQnet USB Connector: Type B, connects to a HiQnet network. HD-15 Connector: For cinema I/O compatibility with DSi-8M System Monitor. The amplifi er shall have the following specifi cations: Output Power: 2 ohm Stereo (per channel): 700W with 1% THD, 4 ohm Stereo (per channel): 500W with 0.5% THD, 8 ohm Stereo (per channel) 275W with 0.5% THD, 4 ohm Bridge-Mono: 1,400W with 1% THD, 8 ohm Bridge-Mono: 1,000W with 0.5% THD. Voltage Gain at 1kHz, 8 ohm rated output: 26 dB. Frequency Response: +0/?1 dB from 20 Hz to 20 kHz at 1 watt into 4 ohms. Load Impedance: Safe with all types of loads. Rated for 2 to 8 ohms in Stereo mode, 4 to 16 ohms in Bridge-Mono mode. Sensitivity at 8 ohm rated output: 2.35V. Sensitivity at 4 ohm rated output: 2.24V. Sensitivity at 2 ohm rated output: 1.88V. Signal to Noise Ratio (below rated 8-ohm power at 1 kHz): 105 dB (A weighted). Damping Factor: Better than 500 from 20 Hz to 500 Hz. Crosstalk: > 70 dB below rated power, 20 Hz to 1 kHz. Input Stage: Input is electronically balanced and employs precision 1% resistors. Input Impedance (nominal): 20 k ohms, balanced;10 k ohms, unbalanced. Maximum Input Signal: +22 dBu typical. AC Line Voltage and Frequency Confi gurations Available: 100V, 120V, 220-240V, 50/60 Hz. AC Line Current: 6.5A. At Idle: Draws no more than 90 watts. Operating Temperature: 0° C to 40° C at 95% relative humidity (non-condensing). The DSP section shall have the following specifi cations: EQ: 6 parametric fi lters per channel with adjustable Q, boost/cut ±15 dB. Also adjustable high and low shelving fi lters. Filters: Highpass and lowpass per channel. Butterworth 12/18 dB per octave and Linkwitz-Riley 24 dB per octave. High and low shelving fi lters, one per channel. Delay: Up to 50 msec total delay per channel. Output Limiter: Prevents clipping and protects loudspeakers. Choice of ?3, ?6, or ?12 dB threshold per channel. Presets: 5 user-defi nable loudspeaker presets and 15 factory-default JBL system presets. Protection shall include the following: DSi-Series amplifi ers shall be protected against shorted, open or mismatched loads; overloaded power supplies; excessive temperature; chain destruction phenomena; excessive output current, and input overload damage. They also protect loudspeakers from input/output DC, large or dangerous DC offsets and turn-on/turn-off transients The chassis shall be steel. Cooling shall be by a proportional speed fan with front-to-rear airfl ow. Dimensions shall be EIA Standard 19-in. rack mount width (EIA RS-310-B), 3.5 in. (8.9 cm) high and 12.25 in. (31.11 cm) deep behind mounting surface. Net weight shall be 19 lb (8.6 kg). Shipping weight shall be 22 lb (10.0 kg) |
The high efficiency of the ED series enables maximum efficiency with low heat generation.
A new and unique Class-H circuity technology using state of the art SMD Surface Mount Technology with a reduced number of components offering performance levels exceeding audiophile levels like a slew rate of 50V/µs and high-end extended dynamic sound. The amplifier provides 2x300W into 4 Ohm is equipped complete with temperature-controlled fan cooling, all common protective circuits such as over-temperature, short circuit, RFI and soft start.
The integral soft clip limiter protects against damage to the connected loudspeakers, the activity of a protective circuit, signal and limiter are shown for each channel by LEDʼs.
AMPLIFIER SPECIFICATIONS |
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Power output stereo 4Ω: | 2 x 300 Watt rms | | Power output stereo 8Ω: | 2 x 180 Watt rms | | Power output bridged 8Ω: | 600 Watt rms | | Frequency Response: | 20 Hz ÷ 20 kHz | | Signal/noise rate: | > 105 dB | | Crosstalk: | > 70 dB | | Distortion (THD+N): | | | Intermodulation: | | | Damping factor: | 200:1 (8 Ω) | | Slew rate: | 50 V/μS | |
INPUT SECTION |
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Input connector: | 2 x XLR balanced, 6,3mm jack unbalanced | | Input sensitivity: | 0 / 0.775 dBm/V RMS | | Input impedance: | 10.000 kΩ | | Controls: | Volume control for each channel | |
OUTPUT SECTION |
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Output connector: | 2 x Neutrik Speakon 4 ways | |
SYSTEM PARAMETERS |
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Cooling: | Two-speed fan | | Protections: | Temperature, DC, RFI short circuit, Soft-Start thermal on transformer | | Amplifier class: | H | |
POWER REQUIREMENT |
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Operating voltage: | 220÷240 / 110÷120 ~ 50 / 60 V ~ Hz | | Max.current: | 6 A | | Power Consumption: | 1300 W | |
PHYSICAL SPECIFICATIONS |
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Height: | 88 / 3.46 mm/inch | | Width: | 483 / 19.01 mm/inch | | Depth: | 350 / 13.77 mm/inch | | Net Weight: | 11.45 / 25.24 Kg/Lbs | |
SHIPPING INFORMATION |
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Package height: | 120 / 4.72 mm/inch | | Package width: | 540 / 21.25 mm/inch | | Package depth: | 470 / 18.05 mm/inch | | Shipping Weight: | 13.81 / 30.44 Kg/Lbs |
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BASIC Series - Intelligent Power
BASIC - that's meeting the tightest budgets and professional requirements in reliability, flexibility and sound. Alone or in combination with the other products of the Bittner portfolio. The consequent realisation of the Bittner quality standards indicates once more our understanding of the contracting business. It underlines our philosophy that cost consciousness has nothing to do with giving up standards. Compromise is a word unknown to Bittner Audio! The incorporation of detent potentiometers, clip limiter, protection circuits for any imaginable situation, as well as a first-class production process using only highest-quality components made the BASIC series the choice of most contractors.
Certainly more than basic!
High Tech SMT design Excellent sound and superior impulse response Protection Circuits: DC, LF, HF, Thermal, Short Circuit, Current Limiter, 3 ms Muting Delay XLR Inputs Speakon and Binding Posts Clip Limiter Toroidal transformers LED Indicators for SIGNAL, CLIP, PROTECT, POWER Temperature controlled, variable speed, low noise fans Detent potentiometers Stereo / Bridged / Parallel Mode Ground Lift Robust Steel Chassis 3 Year Warranty
TECHNICAL DATA: Basic 400: 2x 200 W @ 4 Ohm Class: AB Frequency Response: 20 Hz - 20 kHz (0 / -0.3 dB) THD: < 0.03% Signal-to-Noise Ratio: < -102 dB Channel Seperation: > 85 dB Input Sensitivity: +6 dBu Input Clipping: 22 dBu Input Impedance: 20 kOhm Damping Factor: > 400 @ 4 Ohm Cooling: 2x Fan (temp. reg. variable speed) Weight: 12 kg. Dimensions : 2 RU/483x89x265 mm (19" x 3.5" x 12.6“) |
- 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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