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LD Premium LDSP44K 4-Channel Power Amplifier
The LDSP44K is a professional 4-channel power amplifier offering amazing value and versatility in a compact lightweight Class H design. Suitable for touring and installation sound reinforcement it delivers a maximum of 4x 980W into 2Ohms and 2x 1.960 in 4Ohms stereo bridge mode.
Featuring a high efficiency switch mode power supply the LDSP44K provides a 20Hz – 20kHz bandwidth with low THD and crosstalk, a damping factor higher than 500, excellent S/N ratio and 3 switchable sensitivity levels.
Reliable performance is ensured by heavy duty engineering, high quality components and comprehensive protection including soft start with turn-on muting, PMS™ power management, SSP™ (Safe operation Sentry Protection) and ICL™ (Intelligent Clip Limiting) to maintain signal integrity. Protection circuits against DC, thermal and power supply overload are implemented. A switchable subsonic filter and a 3-position gain switch offer variable amplifier adjustment.
- Type: Professional Power Amplifier
- Model Name: SP44K
- Output Power 1 kHz,
- 2 ohms 4 x 980 W
- 4 ohms 4 x 670 W
- 8 ohms 4 x 430 W
- Bridge 4 ohms 2 x 1960 W
- Bridge 8 ohms 2 x 1340 W
Output Circuity: Class H
Frequency Range: 20 Hz - 20 kHz THD: S/N Ratio: 113 dB Damping Factor: >500 Crosstalk: > 75 dB Voltage Gain: 26 / 32 / 38 dB Input Sensitivity: 3.0 / 1.5 / 0.8 V Input Impedance: 20k ohm (balanced) / 10k ohm (unbalanced) Protection: Soft-start, Turn-off transients, Muting at turn-on, Over-heating, DC, RF, Short circuit, Open or mismatched loads, Overloaded power supply, ICL Clip Limiter, PMS, SSP
Controls: On/Off, Volume, Voltage Gain, Dual / Link switchable, Bridge / Stereo configuration switch Indicators: Signal, Temp, PMS (Power Management System), ICL (Intelligent Clip Limiting) Connectors: Input: XLR / Output: Neutrik Speakon Cooling System: 2 x continuously variable speed fan, rear to front
Power Supply: AC~230V / 50 Hz
Power Consumption Full Load: 13.5 A Dimensions (W x H x D): 483 x 89 x 310 mm |
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
| POWER AMPLIFIER 4 X 2100 WATT / 4Ω
Very high power and channel density – • The four-channel FP
10000Q delivers a total of 10000 W (4 x 2500 W @ 2 ohms) in
only 2U
Four-channel fexibility – • Four channels in one cabinet increases
effciency, fexibility and value in powering monitor systems, line
arrays, and bi- or tri-amped systems. Adjacent channels bridgeable
for 2- or 3-channel operation
Lab.gruppen sound quality – • FP 10000Q amplifers maintain
the impeccable sonic performance standards set by the original fP
Series, with the same durability and even greater effciency
NomadLink • ® network ready – Monitoring and control of key
functions accessible via the intuitive DeviceControl software and
the robust, daisy-chained NomadLink® network
Patented Class TD amplifer topology – • Road-proven output
stage delivers Class B audio quality with Class D effciency
Regulated Switch Mode Power Supply (R.SMPS) – • Output
power remains constant even with signifcant drops in the mains
voltage
Effcient cooling system – • Unique, lightweight Intercooler® cop-
per cooling system dissipates more heat to allow extended peak
output
Adjustable parameters – • Selectable Gain, scalable Voltage Peak
Limiter (VPL), and bridge-mode operation allow custom confgura-
tion for any system or application
XLR input connectors •
Heavy-duty binding post or Speakon output connectors •
Comprehensive protection and warning – • Excessive output
current, DC, high temperature, very high frequency (VHF), short
circuit, open load, mains fuse protection, and soft start | • 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™
| OUTPUT POWER |
T-604 |
T-1204 |
T-1208 |
T-2408 |
| RMS, 1kHz, 1.0% THD+N |
|
|
|
|
| 4 ohms |
4x 160 W |
4x 320 W |
8x 150 W |
8x 300 W |
| 8 ohms |
4x 115 W |
4x 220 W |
8x 100 W |
8x 195 W |
| Bridge @ 8ohms |
2x 320 W |
2x 640 W |
4x 300 W |
4x 600 W |
| Pink Noise 12dB CF |
|
|
|
|
| 4 ohms |
4x 210 W |
4x 415 W |
8x 180 W |
8x 370 W |
| • 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
| |
OUTPUT POWER |
T-604 |
T-1204 |
T-1208 |
T-2408 |
| RMS, 1kHz, 1.0% THD+N |
|
|
|
|
| 4 ohms |
4x 160 W |
4x 320 W |
8x 150 W |
8x 300 W |
| 8 ohms |
4x 115 W |
4x 220 W |
8x 100 W |
8x 195 W |
| Bridge @ 8ohms |
2x 320 W |
2x 640 W |
4x 300 W |
4x 600 W |
| Pink Noise 12dB CF |
|
|
|
|
| 4 ohms |
4x 210 W |
4x 415 W |
8x 180 W |
8x 370 W |
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™ |
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
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