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Features
Soft-start limiter
3 modes: stereo, parallel, mono-bridged
High-performance cooling fans with variable speed
Active diplexer with adjustable frequency range (25 Hz - 150 Hz)
Processing switch for equalisation of audio signals
Subwoofer/low-cut switch for direct control of subwoofer/Satellites
Transient pulse protected
Special switch-mode power supply
Overload and short circuit protection
Thermal protective system
Separate amplifier circuits for channels A and B
Outputs: PA pro speaker cable, 6.3 mm Jacks
Inputs: XLR, 6.3 mm Jacks
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Technical Data
1400 W PRO PA amplifier
Output capacity: 2x 700 W at 8 ohm, 2x 950 W at 4 Ohm, 1x 1400 W at 8 Ohm (mono-bridged)
Frequency range: 20 Hz - 20 kHz
Dimensions: 483 x 88 x 490 mm
Weight: 13.0 kg
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- Signal to Noise (20 Hz - 20 kHz): 100 dB
- Input Sensitivity: 1.2 Vrms
- Voltage Gain (8 Ohms): 34.4 dB
- Output Circuitry: 2-tier Class H
- Power Requirements: 6A
- Frequency Response: 20 Hz - 20 kHz, +0, 1 dB
- Dynamic Headroom (4 Ohms): 2 dB
- Damping Factor: 100
- Input Impedance: Greater than 20k (balanced)
- Maximum Input Level: +24 dB (16 Vrms)
- Input Connectors (each channel): 3-pin XLR and 1/4-inch TRS, balanced, parallel Phono, unbalanced
- Output Connectors (each channel): Speakon, 1/4-inch, Binding Posts
- Amplifier and Load Protection: Short circuit, open circuit, thermal, RF protection Load protected against DC faults
- Rear Panel Controls: Full Range / Crossover switch
- Dimensions (H x W x D): 3.5 x 19 x 10.1 inches (89 mm x 483 mm x 257 mm)
- Weight: 26 lbs (12 kg)
Front Panel Controls and Indicators:
- Gain controls, 21 detents
- Red Clip LEDs, proportional, 0.1% THD threshold
- Green Signal LEDs, threshold -35 dB
- Blue Power LED, AC on ![]()
Stereo Mode:
- 8 Ohms / both channels driven: 500 Watts
- 8 Ohms / single channel driven: 600 Watts
- 4 Ohms / both channels driven: 700 Watts
- 4 Ohms / single channel driven: 850 Watts
Distortion:
- 8 Ohms: less than 0.05%
- 4 Ohms: less than 0.1%
Dimensions and Weight in Packaging
Shipping Weight: 31 lbs
Shipping Dimensions: 24 x 15 x 7 in
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The new LD Premium Audio CLASS-H SMPS amplifiers distils all the 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 LD Premium amps, you'll find four 2-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.
- Model Name: SP1K8
- Output Power 1 kHz, 500
- Crosstalk (20 Hz - 20 kHz): > 75 dB
- Voltage Gain (selectable): 26/32/38 dB
- Input Sensitivity: 2.6/1.3/0.6 V
- Protection: Soft-start, Turn-on Turn-off transients, Muting at turn-on, Over-heating, DC, RF, Short-circuit, Open or mismatched loads, Overloaded power supply, ICLTM, PMSTM, SSPTM
- Controls: On / Off Switch, Volume, Voltage Gain, Dual / Link Switchable, Bridge Mode Configuration Switch
- Indicators: Signal, Temperature, ICL (Inteligent Clip Limiting), PMS (Power Management System)
- Connectors:
- Input: 2 x XLR
- Line Output: 2 x XLR
- Speaker Output: 2 x Speakon
- Power Supply: 230 V - 50 Hz
- Dimensions (WxHxD): 483 × 88.9 × 310 mm / 19 × 3.5 ×12.2 inches
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Power Rating
Stereo Mode:
8Ω EIA 1 kHz 1% THD - 500W
4Ω EIA 1 kHz 1% THD - 850W
2Ω EIA 1 kHz 1% THD - 1250W
Bridged Mono:
8Ω EIA 1 kHz 1% THD - 1700W
4Ω EIA 1 kHz 1% THD - 2500W
Damping Factor Not Specified By Manufacturer
Input Sensitivity 26dB Setting - 3.28V
32dB Setting - 1.60V
Input Impedance > 10kΩ balanced, or unbalanced
Gain 34.5dB
Frequency Response 20Hz to 20kHz, +/- 0.2dB
Signal-to-Noise Ratio -106dB
Total Harmonic Distortion (THD) 0.02% @ 2Ω
0.005-0.01% @ 4Ω
0.002-0.01% @ 8Ω
Input Connections Input: XLR Male, XLR Female and 3-pin detachable terminal blocks (1 each per channel)
DataPort: HD-15, input signal in parallel with XLR input connectors
Output Connectors Output: Neutrik Speakon (ch 1 wired to both channels) and 5-way binding posts
Controls Front Panel AC Power Switch
Gain Controls, 21 detents, 1 dB steps (each channel)
Controls (Rear) Input Mode: Bridge (Yellow), Stereo (Green), or Parallel (Orange)
Gain / Sensitivity: 26dB (Orange), 32dB (Green), or 1.2V (Yellow)
High Pass (each channel): 3Hz (Off), 30Hz (Yellow), or 50Hz (Orange)
Clip Limiter (each channel): Off, On (Yellow)
Indicators Clip Limiter (each channel): Off, On (Yellow)
Camera Resolution Flow-thru air path and solid aluminum heat sinks
Power Consumption 120V 50/60Hz - 8.5A
230V 50Hz - 7.5A
Power Requirements Not Specified By Manufacturer
Dimensions (WxHxD) 19 x 3.5 x 15.63" (48.3 x 8.9 x 39.7cm)
Weight 33.5 lbs (15.2kg)
Specialties Parallel Dataport, XLR/M and XLR/F connectors for simple loop-through connectivity
| L1800 600W-600W 4ohm (360W-360W 8ohm)
COMPACT MODERN DESIGN
Compact size (2U-Rack Height) with up to 1200W per channel@2ohms
these amps save valuable rack space without compromising power output.
HIGH CURRENT TOROIDAL TRANSFORMER
A high-current toroidal transformer saves rack space
and minimizes hum and noise.
EXCELLENT SOUND QUALITY
The low T.H.D.(0.05%) and high damping factor (400 or higher)
gives excellent sound quality.
2 STAGE POWER SUPPLY
The high-power units (L1800 and L2400) have a 2-Stage Class-H design
that maximizes their performance.
EQUIPPED WITH 30Hz or 50Hz HPF
All amplifiers are equipped with high-pass filters on each channel to
help maintain sound quality, yet help protect the loudspeakers.
EXTENSIVE PROTECTION CIRCUITS
Extensive protection circuits monitor over voltage/current conditions, overheating,
output shorts, and DC voltage to improve performance and reliability.
CLIP-LIMITER CIRCUITS
Clip-limiters on each channel are provided to help prevent
distortion due to excessive signal levels.
L.E.D FUNCTION DISPLAYS
Power, Clip limiter, Signal, Protection, Mode (Parallel/Stereo/Bridged)
LEDs on the front panel indicate the status of the unit in operation. |
InterM V-2000 Power amplifier 2Χ550W/4ohm, 2Χ300W/8ohm, 2Χ900W/2ohm bridge 1900W/4ohm |
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