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 | | STEREO MODE | DP450 | DP650 | DP800 | DP1000 | 8ohms (RMS/THD 1%) | 450Wx2 | 650Wx2 | 900Wx2 | 1100Wx2 | 4ohms (RMS/THD 1%) | 800Wx2 | 1200Wx2 | 1500Wx2 | 1700Wx2 | 2ohms (MAX) | 1600Wx2 | 2300Wx2 | 2800Wx2 | 3400Wx2 | BRIDGE MONO MODE | | | | | 8ohms | n/a | n/a | n/a | n/a | 4ohms | n/a | n/a | n/a | n/a | | | | | | Signal to Noise | >95dB | Input Sensitivity | 1.1v | Gain @ 8homs | 38dB | Output Circuitry | CLASS D | Distortion | Less than 0.02% | Frequency Response | 10Hz-40KHz @ 8ohms ±0.5dB | Damping Factor (@100Hz) | >600 | Input Impedance | Balanced 20K/ Unbalanced 10K | Switching Rate | 50V/us | High Filter | n/a | Cooling | Variable-speed fan, rear-to-front air flow | Input Connectors, each channel | XLR male & female | Output Connectors, each channel | speakon | Rear Panel Swithches | mono/stereo | Front Panel Controls | Gain Attenuator: 0 to ∞ dB Power On/Off | Front Panel Indicators | Protect (PRO),CLIP (CLIP),Signal (SIG) and Active (Act) | Protection | | | | | Amplifier Protection | Full short circuit, thermal, infrasonic, ultrasonic,VHF,vol.gain
gradually | Load Protection | DC fault power supply,switching power supply under voltage | Infrasonic | -3 dB, 5 Hz | DC fault | Power supply shutdown | Ultrasonic | -3 dB, 85 kHz | Short Circuits | active clip limiting, recover after limiting | Thermal | no output at 95°C, re-work less than 95°C | Over Current | auto limit | PHYSICAL | | | | | SHIPPING WEIGHT(kgs) | 11.5 | 12.5 | SHIPPING SIZE ( WxDxH mm) | 504x560x95 | 565x560x95 |
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