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- 4-channel power amplifier with DSP control
- 4 x 1200 watts @ 4 and 2 ohms, 2 x 2400 watts bridged @ 4 ohms
- 10 Hz - 22 kHz frequency response with 120 dB dynamic range
- 24-bit/48kHz DSP with FIR and IIR filters, parametric EQ, crossover, delay, RMS and peak limiters
- DC, overcurrent, thermal and short circuit protection, soft start, clip and SMPS overload limiters
- Dual temperature-controlled fans
- Power factor correction (PFC)
- Menu driven 4-line display with rotary encoder and security lock
- Includes control and monitoring software and LD Systems® Loudspeaker Preset Library
The LD Systems® DSP 45 K is a professional 4-channel power amplifier with extensive DSP control. Designed for demanding large-scale sound reinforcement and concert-quality performance, it delivers a massive 1,200 watts per channel and 2 x 2,400 watts bridged. The high-efficiency Class H topology and switch mode power supply with power factor correction (PFC) provide a wide dynamic range and excellent transient response.
The DSP 45 K features comprehensive protection circuitry including power-up, DC, overcurrent, thermal and short circuit protection plus current and clip limiters to prevent SMPS overload and loudspeaker damage. Together with a pair of temperature controlled fans, they ensure exceptional reliability in the most demanding applications. The 24-bit DSP allows precise control with FIR and IIR filters, parametric EQ, crossover, delay, RMS and peak limiter functions. User configurable loudspeaker presets with password protection enable fast setup
The DSP 45 K is housed in a dual rack space all-steel chassis and weighs just 7 kg. It provides balanced Neutrik® XLR inputs, speakON® output connectors plus USB and Ethernet ports. The front panel sports a menu driven 4-line display and rotary encoder with push button switch for easy configuration. For optimal speaker performance and safe operation the DSP 45 K comes with an LD Systems® loudspeaker preset library, and the included software enables computer control and monitoring.
Product type
Power Amplifiers
Type
4-channel
Rated ouput power (1kHz @ 2 Ohms)
4 x 1200 W
Rated ouput power (1kHz @ 4 Ohms)
4 x 1200 W
Rated ouput power (1kHz @ 8 Ohms)
4 x 675 W
Rated ouput power (1kHz @ 4 Ohms, bridged)
2 x 2400 W
High Z 70Vrms / 100Vpeak
4 x 1200 W
High Z 100Vrms / 140Vpeak
2 x 2400 W
Output circuitry
Class H
Frequency response
10 - 22000 Hz
THD
Signal-to-noise ratio
32 dB
Protection circuits
clip limiter , DC protection , Multiband limiter , over-current , RMS speaker limiter , short circuit , soft start , thermal protection
Controls
Direct access buttons , Exit / lock button , knob , On / off switch
Indicators
LC display
Line inputs
4
Line input connectors
Neutrik XLR
Line outputs
4
Line output connectors
Neutrik XLR
Loudspeaker outputs
4
Speaker output connections
Speakon
Cooling
2 fans, temperature controlled
Maximum Ambient Temperature
0 - 40
Operating voltage
220 V AC - 240 V AC, 50-60 Hz , Switching power supply
Relative Humidity:
Power consumption @ full load
1900 W
Width
482 mm
Height
89 mm
Depth
320 mm
Weight
7 kg
Features
19" / 2 U , Active Power Factor Correction , DSP controlled
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Product Features: - 4 x 75 Watts into 4 Ohms; 4 x 50 Watts into 8 Ohms
- ATR (Accelerated Transient Response) technology for ultimate punch and clarity
- Ultra-light, ultra-low noise and ultra-efficient switch-mode power supply for noise-free audio, superior transient response and low power consumption
- Independent limiters for each channel offer maximum output level with reliable overload protection
- Detented gain controls for precise setting and matching of sensitivity
- Precise Power, Signal and Clip LEDs to monitor performance
- Servo-balanced XLR and 1/4" TRS inputs plus professional speaker connectors
- Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers without shutting down the show
- “Back-to-front" ventilation system including air filter for reliable operation
- “Built-like-a-tank“, impact-resistant and all-steel 1U rackmount chassis
- Minimum depth chassis (10.1" / 257 mm) and ultra-light weight design (8.8 lbs / 4.0 kg) fits into compact, inexpensive effects racks
- High-quality components and exceptionally rugged construction ensure long life
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Τετρακάναλος τελικός ενισχυτής ζωνών, ισχύος 4 x 180 Watt / 8Ω RMS, 4 x 230 Watt /4Ω RMS,
2 x 460 Watt / 8Ω bridge RMS, ξεχωριστή ρύθμιση έντασης ανά κανάλι, HPF σε κάθε κανάλι,
εισόδους XLR και Euro block, με δυνατότητα κοινής εισόδου κατόπιν επιλογής.
Διαστάσεις (Π x Υ x Β): 480 x 88 x 412 mm, Βάρος: 10 kg
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Τελικός ενισχυτής 4X60W/4Ω, 4X40W/8Ω, bridged 120W/8Ω (Μono), είσοδοι combination jack balanced, απόκριση συχνότητας 20Hz-50 kHz, S/N 105dB, 2U. Κατάλληλος για εγκαταστάσεις & P.A. 11,5kg.
Power Output Level: QD4240
8ohm (Quad Ch) 40W
4ohm (Quad Ch) 60W
8ohm bridged mono 120W
Input Sensitivity (8ohm, 1kHz) 0.775Vrms
Input Impedance 20kohm Balanced
Slew Rate (8ohm, Full Swing) ±30V/?sec
Frequency Response (±0.5dB) 20kHz ~ 50kHz
T.H.D. (f=20Hz~20kHz, Half Power) 0.03%
Signal to Noise Ratio 105dB
Damping Factor (8ohm, 1kHz) 100
Rasidual Noise -85dB
Channel Separation (8ohm, 1kHz) 80dB
Voltage Gain (4ohm) 26dB 29dB 32dB
Power Source 100-120VAC or 220-240VAC ; 50/60Hz
(supplied AC mains transformer depends on country requirements)
Power Consumption 300W 420W 770W
Weight 11.5kg/25.3lb 15.5kg/34.2lb 17kg/37.5lb
Dimensions 482(W) x 88(H) x 369(D) mm
/19(W) x 3.5(H) x 14.5(D) in
| High-tech in professional amplification!
The fP 2400Q is a lightweight and space-saving four-channel power amplifier, ideal for use in high quality touring sound systems as well as in demanding permanent installations. The fP 2400Q offers a diverse choice of applications, such as: multi-channel monitor systems, four-channel reproduction, and compact amplification in active 2-, 3-, and 4-way systems. The fP 2400Q makes possibile the bridge connection of one or two of the two pairs of channels (channel A and B and/or channel C and D). It also features Lab.gruppen?s unique power matching solution, the MLS switch, which offers endless combinations for solving most of the problems related to varying impedances and maximum power capacities of loudspeakers. The latest semiconductor technology is utilized in the new ferrite Power (fP) amplifiers. This, together with Lab.gruppen?s proprietary copper cooling system, Intercooler?, enhances the 2 ohms capacity. Two easily accessible dust filters on the front ensure a clean front-to-rear airflow. Additionally, a new Bi-phase wiring scheme also increases the capacity of the switch mode power supply. This extends the power bandwidth in the low end.
Key Features: 4 x 370 watts @ 8 ? 4 x 380 watts @ 4 ? 4 x 500 watts @ 2 ? (Measured just below clip level, with all 4 channels driven) Light weight and compact: only 8.6 kg (19lbs), 2U high MLS? Switch: Lab.gruppen?s unique power matching for different loads
New Features: Replaces the LAB 1200C Easily accessible dust filters Improved low-end power bandwidth Extruded front panel for increased stability
Besides the traditionally superb Lab.gruppen sonic performance, there is a full line of features to make the fP family functional in all situations from installation to high performance live sound systems:
Regulated switch mode power supply Today there are many lightweight, switch-mode amplifiers in the market. However, the unique Lab.gruppen switch-mode power supply technology offers a number of essential advantages that make it superior to other and seemingly similar power supply designs. The most important features are the regulated power supply and the extreme power efficiency. The regulated power supply easily deals with a very high variation in the AC mains voltage: it can drop by up to 20% below its nominal level - e.g. to 180 V instead of 230 V ? without any problem. Perhaps even greater benefits result from the extreme efficiency of Lab.gruppen amplifiers: only a fraction of the energy from the AC mains is turned into heat. A regulated power supply also presents some other sonic advantages, such as better cone control and the same fast response as a conventional power supply.
Sophisticated protection circuitry, combining: ALS? short circuit protection; the Adaptive Limiting System permits very high peak currents, but keeps the amplifier within the Safe Operation Area DC protection; protects against infrasonic signals VHF protection; protects the loudspeakers against strong very high frequency non-musical signals above the audible range Thermal protection; prevents the amplifier from being overheated. The protection indicators on the front panel are switched on, as a warning, before the protection process is initiated AC protection; shuts down the power supply if the line voltage is outside the operating voltage Clip limiter; prevents severely clipped waveforms from reaching the loudspeakers, whilst maintaining full peak power. | The S Series of RAM Audio amplifiers distils all these features to fulfill all your needs, whether youʼre starting a P.A. amplifier project from scratch, or you need to upgrade your present sound reinforcement equipment. In the S Series amps, you'll find five 2-channel models and five 4-channel models, all offering plentiful power levels at low distortion in the range of 1.5 to 6 kilowatts, yet weighing in around 8 kilos and 30 cm deep. • Ultra-compact and lightweight 2-U high • Laser cut aluminum front panels with integrated carrying handles • Neutrik® XLR input connectors, input and signal link in 2 channel models • Input Link switch: allow daisy-chaining of the input signal • Neutrik® Speakon® output connectors • Detented sealed potentiometers for easy recall of volume settings • ICL™, PMS™, Hi-temp, Signal indicators per channel • Power on and Stand-by leds • Highly versatile with multiple configuration and additional module options • Full PC control via EtheRAM (with EtheRAM Control module) • Switchable ICL™ clip-limiters per channel • Switchable (30-50 Hz) sub-sonic highpass filter per channel • Three-position gain selector (26, 32 or 38 dB) • Dual or bridge mode selector • Twin temperature controlled, back to front cooling fans • Oversized power components (high SOA reserve specification) Standard Signal Inputs Module: The S Series amps are equipped as standard with twin Neutrik® XLR, doubled by two other XLR connectors for linking purposes. In the 4 Channel models an XLR input per channel is provided with the signal linking facility. Analog Processor Module: permits a very easy, user-friendly signal processing to enable the amp to set up a bi-amp system without any other outboard device. These are the Processor's main characteristics: • 2-way stereo crossover (dual mono or single bridged sub output) • 24dB/oct Linkwitz-Riley configurable crossover (90, 100 o 120Hz) • Adjustable attenuation in the High-pass outputs (-3, -6 or -9dB) • Adjustable Limiter, relative to Max. Output (-3, -6 or -9dB) DSP44_S Module: Digital Signal Processor fully programmable through an USB port. These are the Processor's main characteristics: • 4 Inputs/4 Outputs or 2 In/2 Out free route configurable. • 24 bits/192 kHz 256x Oversampling Converters. • Output Delay: 0 to 7.1 meters (20.69ms) per channel. • XOver: Up to 48dB/oct Butterworth, Linkwitz-Riley and Bessel. • EQ: 9 filters per channel (Parametric, Shelving, LP,HP,BP,SB). • Gain, Mute and Phase inversion per channel. • RMS Power and Peak Voltage output limiter per channel. • Real Time operation from USB or front panel configuration. Standard Signal Inputs Module EtheRAM Control Module Ethernet Audio Transport (Coming soon) Analog Processor Module DSP44_S Module EtheRAM Control Module AES/EBU Digital Input (Coming soon)
OUTPUT POWER |
S-1500 |
S-2000 |
S-3000 |
S-4000 |
S-6000 |
S-3004 |
S-4004 |
S-4044 |
S-6004 |
S-6044 |
1kHz, 1.0% THD |
2 ohms |
2x880W |
2x1190W |
2x1570W |
2x1950W |
2x2950W |
4x700W |
4x980W |
- |
4x1440W |
- |
4 ohms |
2x575W |
2x790W |
2x1100W |
2x1380W |
2x2025W |
4x500W |
4x670W |
4x975W |
4x1000W |
4x1480W |
8 ohms |
2x325W |
2x460W |
2x630W |
2x810W |
2x1250W |
4x300W |
4x430W |
4x690W |
4x620W |
4x1015W |
Bridge @ 4ohms |
1760W |
2380W |
3140W |
3900W |
5900W |
2x1400W |
2x1960W |
- |
2x2880W |
- |
Bridge @ 8ohms |
1150W |
1580W |
2200W |
2760W |
4050W |
2x1000W |
2x1340W |
2x1950W |
2x2000W |
2x2960W |
P. N. 12dB C.F. |
2 ohms |
2x975W |
2x1360W |
2x2060W |
2x2460W |
2x4225W |
4x890W |
4x1170W |
- |
4x2080W |
- |
4 ohms |
2x610W |
2x880W |
2x1240W |
2x1600W |
2x2600W |
4x580W |
4x820W |
4x1230W |
4x1280W |
4x2110W |
Frequency Response (power bandwidth ±0.25dB): 20Hz-20kHz Phase Response (@1W 20Hz-20kHz): ±15deg Total Harmonic Distortion (20Hz-20kHz): Intermodulation Distortion (SMPTE): Crosstalk (20Hz-20kHz): >75dB Voltage Gain (selectable): 26/32/38 dB Sensitivity: 1500:2.6/1.3/0.6V 2000:3.0/1.5/0.8V 3000:3.6/1.8/0.9V 4000:4.0/2.0/1.0V 6000:5.0/2.5/1.3V 3004:2.6/1.3/0.6V 4004:3.0/1.5/0.8V 4044:3.7/1.9/0.9V 6004:3.5/1.8/0.9V 6044:5.0/2.5/1.3V Signal to noise ratio: 1500:112dB 2000:113dB 3000:115dB 4000:116dB 6000:118dB 3004:112dB 4004:113dB 4044:116dB 6004:116dB 6044:118dB Required AC Mains (@4ohms 1/8 r.p.): 1500:4A 2000:4.8A 3000:6.2A 4000:7.5A 6000:10.5A 3004:6A 4004:7.5A 4044:11A 6004:10.5A 6044:15A Dimensions (WxHxD): 483x88.9x310 mm - 19x3.5x12.2 inches Weight (Net): 1500/2000: 8Kg - 17.6Lbs 3000/4000/3004/4004/4044: 8.5Kg-18.7Lbs 6000/6004/6044: 8.6Kg-18.9Lbs Protections: Soft-start, Turn-on Turn-off transients, Muting at turn-on, Over-heating, DC, RF, Short-circuit, Open or mismatched loads, Overloaded power supply,ICL™, PMS™, SSP™ |
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