We are professional audio amplifier manufacturer . The DP professional audio amplifier is the first class d professional amplifier in our range. With years of improvement, it becomes the most stable amplifier that can give you continual power without any problem.
Product Description
Digital switching amplifier
Rock-solid, ultrastable output power set record marks in terms of flexibility, efficiency and practical use. Whole amp racks of multiple conventional power amplifiers with switching power supplies may be reduced to a mere one to three LEX Class D Digital amplifiers. Apart from these "hard" benefits, they offer many more advantages such as a strikingly audiophile sound reproduction with very precise, deep lows and a superb resolution of midrange and high frequencies.
The fact that LEX develops and builds amplifiers in top-notch quality is almost self-explanatory. The uncompromising component selection and a circuit design based on criteria of aerospace technology ensure utmost reliability.
Features:
Ø Switch-mode power supply for high performance and compact size
Ø Class D (digital) output for extremely high efficiency because of less current consumption and heat dissipation
Ø Easily handles 2-ohm loads all night long
Ø Variable speed fan for low noise
Ø Balanced XLR audio input / Speakon Speaker output
Ø Switch for mono and stereo
Ø Comprehensive front panel indicators including signal (SIG), clip (CLIP), active (ACT) and, protect (PRO)
Ø Fully protected circuit design including DC, infrasonic, high frequency, thermal overload and short circuit
Ø Clip limiter - prevents severely clipped waveforms from reaching the loudspeakers, whilst maintaining full peak power
Ø DC protection - protects against infrasonic signals
Ø VHF protection - protects the loudspeakers against strong very high frequency non-musical signals above the audible range.
Ø Thermal protection - prevents the amplifier from being overheated
Ø Compact size - only 1 U for reduced rack cost and space
Ø Light weight - only 9 kg for easier racking and shipping (bigger power model)
SPECIFICATIONS
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STEREO MODE
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DP450
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DP650
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DP800
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DP1000
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8ohms (RMS/THD 1%)
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450Wx2
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650Wx2
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900Wx2
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1100Wx2
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4ohms (RMS/THD 1%)
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800Wx2
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1200Wx2
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1500Wx2
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1700Wx2
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2ohms (MAX)
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1600Wx2
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2300Wx2
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2800Wx2
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3400Wx2
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BRIDGE MONO MODE
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8ohms
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n/a
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n/a
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n/a
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n/a
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4ohms
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n/a
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n/a
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n/a
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n/a
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Signal to Noise
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>95dB
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Input Sensitivity
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1.1v
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Gain @ 8homs
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38dB
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Output Circuitry
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CLASS D
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Distortion
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Less than 0.02%
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Frequency Response
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10Hz-40KHz @ 8ohms ±0.5dB
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Damping Factor (@100Hz)
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>600
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Input Impedance
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Balanced 20K/ Unbalanced 10K
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Switching Rate
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50V/us
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High Filter
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n/a
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Cooling
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Variable-speed fan, rear-to-front air flow
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Input Connectors, each channel
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XLR male & female
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Output Connectors, each channel
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speakon
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Rear Panel Swithches
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mono/stereo
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Front Panel Controls
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Gain Attenuator: 0 to ∞ dB Power On/Off
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Front Panel Indicators
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Protect (PRO),CLIP (CLIP),Signal (SIG) and Active (Act)
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Protection
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Amplifier Protection
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Full short circuit, thermal, infrasonic, ultrasonic,VHF,vol.gain gradually
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Load Protection
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DC fault power supply,switching power supply under voltage
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Infrasonic
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-3 dB, 5 Hz
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DC fault
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Power supply shutdown
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Ultrasonic
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-3 dB, 85 kHz
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Short Circuits
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active clip limiting, recover after limiting
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Thermal
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no output at 95°C, re-work less than 95°C
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Over Current
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auto limit
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PHYSICAL
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SHIPPING WEIGHT(kgs)
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11.5
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12.5
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SHIPPING SIZE ( WxDxH mm)
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504x560x95
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565x560x95
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