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.

The DPA series amplifiers are digital power amplifiers designed to meet the specialized needs of sound contractors for Multi-Zone distributed speaker systems. They are designed in six different models of Class D power amplifiers, divided in three different architectures to meet the requirements for all kinds of applications.

They combine the best of all features in one single series of amplifiers, providing an outstanding sound quality with all the known advantages of Class D Amplifiers. Such as the excellent efficiency and very low heat dissipation. And due to the complete passively cooled entity only a minimal of maintenance is needed, while ensuring maximum reliability.

The small size of a single rack space make them very interesting for fixed rack mount as well as mobile applications.

The DPA74 is built as multi channel power amplifier with four individual controllable channels containing various specific features and advanced protection circuitry which protects against DC malfunctioning, short circuit, overheating and overload.

The signal input connections are accommodated with balanced XLR connectors. The operation mode can be selected between Stereo mode, Bridge mode and Parallel mode. The output connections are accommodated with Euro-Terminal blocks.

• Model Name / Type: DPA74 / Digital Amplifier
• 8 ohms: 4 x 50 W
• 4 ohms: 4 x 75 W
• 8 ohms Bridge: 2 x 150 W
• THD+N:
• Signal / Noise: > 100 dB
• Frequency Response: 20 Hz - 20kHz
• Power Supply: 240 V AC / 50 - 60 Hz
• Dimensions (W x H x D): 483 x 44 x 300 mm

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

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.

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

• Eight and four channel models with 300W and 150W per channel
• Minimal footprint and mass arround 200mm depth and 6 Kg
• Optional Add-on card to interface with third party alarm systems with GPIO connections
• FCM™ Faulty Channel Management system to avoid entire device shutdown
• State-of-the-art layout for maximum performance and reliability
• Highly oversized thermal dissipation design for maximum reliability
• Superb distortion and noise figures
• All channels bridgeable by pairs
• Selectable gain in four channel groups (26, 32 and 38dB)
• Subsonic filter per channel (35Hz user selectable)
• Temperature and signal dependant, intelligent cooling system for minimal
noise
• Optimal heat extraction due to the air tunneled enclosure and insulator-less
power device attachment to the heatsink
• Direct connector-less output for maximum quality loudspeaker control
• High grade engineering inside with the latest SMD technology
• Balanced Inputs with 0.1% tolerance resistors for a precise noise rejection
• Critical electronic and mechanical parts selection
• Innovative protection systems, FCM™ Faulty Channel Management and SSP™
SOA Sentry Protection
• Detented and optionally tamper-proof volume potentiometers
• Hi efficiency, two steps Class H Audio topology
• Protection, Signal and Clip indicators per channel
• Power On and Standby general indicators
• Extremely compact, fully featured QuantaPulse Power supply
• Low current consumption and heat generation allowing less demanding
conditions for multiple amplifier installations
• Factory preset worldwide mains voltage power supply
• Laser cut four milimeters aluminium front panel
• Rugged 2U steel chasis

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): >70dB

Voltage Gain (selectable): 26/32/38 dB

Sensitivity: T604:1.5/0.8/0.4V - T1204:2.1/1.0/0.5V - T1208:1.4/0.7/0.4V - T2408:2.0/1.0/0.5V

Signal to noise ratio: T604:107dB - T1204:110dB - T1208:107dB - T2408:110dB

Required AC Mains (@8ohms 1/8 rated power): T604:1A - T1204:1.5A - T1208:1.4A - T2408:2.6A

Dimensions (WxHxD): 483x88.9x210 mm - 19x3.5x8.27 inches

Weight (Net): T604/T1204: 5.4Kg - 11.8Lbs T1208/T2408: 6.2Kg-13.5Lbs

Protections: Soft-start, Turn-on Turn-off muting, Over-heating, DC, RF, Short-circuit, Open or mismatched loads, Overloaded power supply, SSP™ and FCM™