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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 |
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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The new DEEP2 amp series features four class-H power amplifiers with toroidal core offering amplifying levels from 2 x 400 W till 2 x 810 W at 4 Ohm. During the development of this series we attached a great importance to the reliability and the durability of the amps in continuous operation, this is why we used exclusively high end and selected components for the construction of these products.
The DEEP2 series features a Clip Limiter as well as every common protection circuit. On the rear panel you will find all the common In- and Outputs.
The DEEP2 series will convince every user thanks to a dynamic and very clear sound which is perfectly adapted for Subbass applications as well as for multifunctional speakers. All models are lightweight and feature a robust steel plate housing and a very user friendly and compact design.
The DEEP2 series will prove to be a profitable and reliable choice for bands, renting companies and professional users thanks to its excellent price/performance ratio.
Product type
Power Amplifiers
Rated ouput power (1kHz @ 4 Ohms)
4 x 810 W
Rated ouput power (1kHz @ 8 Ohms)
4 x 490 W
Rated ouput power (1kHz @ 8 Ohms, bridged)
2 x 1600 W
Frequency response
20 - 20000 Hz
Total Harmonic Distortion (THD)
< 0.1 %
Signal-to-noise ratio
105 dB
Input sensitivity
0.775 V
Protection circuits
DC protection , short circuit , thermal overload
Controls
4 x volume , bridge/stereo mode selector , ground lift , mains switch (on/off)
Indicators
Limit , Power , Protect (protection circuit engaged) , Signal
Speaker output connections
Speakon compatible
Cooling
highly efficient, automatic
Operating voltage
transformer
Operating voltage
230 V AC / 50-60 Hz
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Amplifier Gain 32 dB (Lo-Z), 33 dB (70V), 36 dB (100V)
Analog Inputs 4, electronically balanced, Phoenix-type
Audio Network No
CAN Bus Interface Yes (With Optional RCM-810 Card)
Continuous Rated Power
(1 kHz, THD 1%) 100v 1000 Watts
Continuous Rated Power
(1 kHz, THD 1%) 2Ω 1000 Watts
Continuous Rated Power
(1 kHz, THD 1%) 4Ω 1000 Watts
Continuous Rated Power
(1 kHz, THD 1%) 70v 1000 Watts
Continuous Rated Power
(1 kHz, THD 1%) 8Ω 500 Watts
Continuous Rated Power
(20-20 kHz, THD Continuous Rated Power
(20-20 kHz, THD Continuous Rated Power
(20-20 kHz, THD Continuous Rated Power
(20-20 kHz, THD Cooling Front-to-Rear, continuously variable fans
DIM 30 0.02 %
Electronics Type Amplifier
Frequency Response 15 Hz-30 kHz
Input Impedance (Balanced) 20 kΩ
Input Sensitivity 0 dBu (.775V)-2 Ω, +3 dBu (1.1V)-4/8 Ω, +6 dBu (1.55) 70V/100V
Intermodulation Distortion (SMPTE) 0.05 %
Mains Voltage 220 - 240 V, 50 - 60 Hz or 120 V, 50 - 60 Hz, 50 - 60 Hz
Network Control (IRIS-Net) Optional
Total Harmonic Distortion 0.05 %
Variable Load Drive (VLD) Yes
Height 2RU 88.1 mm (3.47“)
Width 483 mm (19.02“)
Depth 421.5 mm (16.59“)
Weight Net 11.1 kg (24.47 lbs) ![aposirsi_electrovoice]( "aposirsi_electrovoice")
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Electro Voice PA 4150L features:
* 100 Watts / 8 Ohms
* 160 Watts / 4 Ohms
* The amplifier channels can be bridged for more flexibility
* Frequency response (-1dB): 10 Hz - 40 kHz
* Signal-to-Noise Ratio: 100 dB
* Provides excellent headroom for a wide dynamic range on music signals
* Protection: audio limiters, high temperature, peak current limiters, turn-on delay
* Marked level controls on the rear panel provide hidden reliable level adjustments for each channel
* Front panel LEDs indicate signal present, 0 dB, and limit
* Phoenix type connectors for inputs and outputs provide an easy rack wiring
* Cooling: front-to-rear
* Power requirements: 120V or 230V, 50 Hz - 60 Hz
* Dimensions (WxHxD): 483 x 88 x 406 mm / 19" x 3.5" x 16"
* Weight: 18 kg / 39.65 lbs
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Model CT475
Product Type Amplifier
Channels 4
Sensitivity 1.4V
Rated Power Output 75W per Channel into 8 ohms
Signal to Noise Ratio (below rated power 20Hz to 20kHz, A-Weighted 110dB
Total Harmonic Distortion (THD) (full rated power, 20Hz - 20kHz)
Intermodular Distortion (from 0dB down to -40dB)
Frequency Response (at 1W into 4/8 ohms) ± 0.5dB
Crosstalk (below rated power 20Hz to 1kHz) > 70dB
Common Mode Rejection (20Hz to 1kHz) > 55dB, typically > 70dB
Dimension (H x W x D) 1.75" x 19" x 14.25“
Weight 10 lbs (4.5 kg)
Shipping Weight 15 lbs (6.8 kg)
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