LD Systems DSP 45 K 4-Channel Power Amplifier with DSP 4 x 1200 watts @ 4ohm

• 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.

Τετρακάναλος τελικός ενισχυτής 2U,τάξης D, το κάθε κανάλι αποδίδει 500 Watt/4Ω/100V/70V με απόκριση συχνότητας 15Hz-30KHz. Βάρος 11,1 kg. Διαθέτει slot για το module RCM810 για έλεγχο του ενισχυτή μέσω του IRIS-NET software.

Ισχύς Εξόδου: 4x 400W RMS /8Ω - 4x 300W RMS /4Ω - 2x 600W RMS /8Ω

4x 400W RMS 70/100V - 2x 800W RMS 140/200V

Παραμόρφωση: THD 20Hz-20.000Hz στο 1W 0,1%

Απόκριση Συχνότητας: 6,8Hz - 34Hz

Λόγος Σήματος / Θόρυβο: 112dBA

Class TD-F: ρυθμιζόμενο Switch Mode, PSU

Hi-Z: 70V/100V έξοδος ανά κανάλι

Δυνατότητα Bridge-Mode

Δυνατότητα Λειτουργίας με τάση 130 - 265V

Προστασία AFS, VHF, Θερμική, DC, RFI, Υπέρτασης, Βραχυκυκλώματος

2xRJ45 EtherCon σύνδεση για Έλεγχο του ενισχυτή με το σύστημα NomadLink Network με τη βοήθεια Υπολογιστή ή με το NLB 60E

Διαστάσεις / Βάρος: 483x88x343 mm / 12kg

Τελικός ενισχυτής 4x75W/8Ω. Ευαισθησία 1.4V -
Απόκριση συχνότητας (at 1W into 4/8 ohms) ±
0.5Db-Crosstalk (below rated power 20Hz to
1kHz) > 70dB S/N110dB-THD 55dB, typically
> 70dB. Διαστασεις: 1.75" x 19" x 14.25“.
Κατάλληλος για μόνιμες εγκαταστάσεις, 1U rack.
Βάρος 4,5kg.

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.

Τελικός ενισχυτής 4X240W/4Ω, 4X170W/8Ω, bridged 480W/8Ω (Μono), είσοδοι combination jack balanced, απόκριση συχνότητας 20Hz-50 kHz, S/N 105dB, 2U. Κατάλληλος για εγκαταστάσεις & P.A. 17kg.
 
Power Output Level QD4960 :                       

8ohm (Quad Ch)        170W 
4ohm (Quad Ch)        240W 
8ohm bridged mono   480W

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