Content | 10451038 4-channel PA amplifier with integrated limiter, 4 x 750 W / 4 ohms, 4 x 500 W / 8 ohms
- Μπορούν να επιλεγούν 3 τρόποι λειτουργίας (στερεοφωνικός, παράλληλος ή γεφυρωμένος)
- Ρυθμιζόμενη ευαισθησία εισόδου
- Ρύθμιση στάθμης ανά κανάλι
- Κάθε κανάλι με LED για ενεργοποιημένο κύκλωμα προστασίας (protect) και μετρητή εξόδου με LED κλιπ
- Είσοδοι σήματος μέσω υποδοχών XLR
- Έξοδοι ηχείων μέσω ασφαλιζόμενων βυσμάτων ηχείων
- Κύκλωμα κλάσης H
- Εξαιρετικά αποδοτική ροή αέρα από εμπρός προς τα πίσω
- Η συσκευή ψύχεται με ανεμιστήρα ελεγχόμενης θερμοκρασίας
- (19") 48.3 cm rack installation 2 U
Power supply: |
230 V AC, 50 Hz |
Power consumption: |
700 W 1/8 power |
Output power: |
4 x 750 W RMS (4 ohms)
4 x 500 W RMS (8 ohms)
2 x 1500 W RMS bridged (8 ohms) |
Power connection: |
Mains input via P-Con (blue), mounting version power supply cord with safety plug (provided) |
Frequency range: |
20 - 20000 Hz |
S/N ratio: |
>100 dB |
THD: |
<0,5 % at 1 kHz |
Cooling: |
2 x temperature-controlled fan , Air flow from front to rear |
Impedance: |
Input: 20 kOhm , bal.
Input: 10 kOhm , unbal. |
Circuitry: |
Class H |
Slew rate: |
>10 V/µs |
Damping factor: |
>200 |
Control elements: |
Power switch, level control per channel, mode switch (stereo/parallel/bridged), Input sensitivity switch |
Controls: |
Short-circuit; overheat; DC voltage; power on/off transients; softstart; power on/off transient |
Status LED: |
Power, level meter, clip, bridged, protect |
Connections: |
Input: line via 4 x 3-pin XLR
Output: speaker via 4 x speaker built-in socket (F)
Output: Speaker (bridge) via 2 x speaker built-in socket (F) |
Input sensitivity: |
0,775 V; 1,4 V , switchable |
Housing design: |
(19") 48.3 cm rack installation 2 U |
Dimensions: |
Width: 48,3 cm
Depth: 41,5 cm
Height: 8,9 cm |
Weight: |
19,20 kg |
| The S Series of RAM Audio amplifiers distils all these 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 S Series amps, you'll find five 2-channel models and five 4-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. • Ultra-compact and lightweight 2-U high • Laser cut aluminum front panels with integrated carrying handles • Neutrik® XLR input connectors, input and signal link in 2 channel models • Input Link switch: allow daisy-chaining of the input signal • Neutrik® Speakon® output connectors • Detented sealed potentiometers for easy recall of volume settings • ICL™, PMS™, Hi-temp, Signal indicators per channel • Power on and Stand-by leds • Highly versatile with multiple configuration and additional module options • Full PC control via EtheRAM (with EtheRAM Control module) • Switchable ICL™ clip-limiters per channel • Switchable (30-50 Hz) sub-sonic highpass filter per channel • Three-position gain selector (26, 32 or 38 dB) • Dual or bridge mode selector • Twin temperature controlled, back to front cooling fans • Oversized power components (high SOA reserve specification) Standard Signal Inputs Module: The S Series amps are equipped as standard with twin Neutrik® XLR, doubled by two other XLR connectors for linking purposes. In the 4 Channel models an XLR input per channel is provided with the signal linking facility. Analog Processor Module: permits a very easy, user-friendly signal processing to enable the amp to set up a bi-amp system without any other outboard device. These are the Processor's main characteristics: • 2-way stereo crossover (dual mono or single bridged sub output) • 24dB/oct Linkwitz-Riley configurable crossover (90, 100 o 120Hz) • Adjustable attenuation in the High-pass outputs (-3, -6 or -9dB) • Adjustable Limiter, relative to Max. Output (-3, -6 or -9dB) DSP44_S Module: Digital Signal Processor fully programmable through an USB port. These are the Processor's main characteristics: • 4 Inputs/4 Outputs or 2 In/2 Out free route configurable. • 24 bits/192 kHz 256x Oversampling Converters. • Output Delay: 0 to 7.1 meters (20.69ms) per channel. • XOver: Up to 48dB/oct Butterworth, Linkwitz-Riley and Bessel. • EQ: 9 filters per channel (Parametric, Shelving, LP,HP,BP,SB). • Gain, Mute and Phase inversion per channel. • RMS Power and Peak Voltage output limiter per channel. • Real Time operation from USB or front panel configuration. Standard Signal Inputs Module EtheRAM Control Module Ethernet Audio Transport (Coming soon) Analog Processor Module DSP44_S Module EtheRAM Control Module AES/EBU Digital Input (Coming soon)
OUTPUT POWER |
S-1500 |
S-2000 |
S-3000 |
S-4000 |
S-6000 |
S-3004 |
S-4004 |
S-4044 |
S-6004 |
S-6044 |
1kHz, 1.0% THD |
2 ohms |
2x880W |
2x1190W |
2x1570W |
2x1950W |
2x2950W |
4x700W |
4x980W |
- |
4x1440W |
- |
4 ohms |
2x575W |
2x790W |
2x1100W |
2x1380W |
2x2025W |
4x500W |
4x670W |
4x975W |
4x1000W |
4x1480W |
8 ohms |
2x325W |
2x460W |
2x630W |
2x810W |
2x1250W |
4x300W |
4x430W |
4x690W |
4x620W |
4x1015W |
Bridge @ 4ohms |
1760W |
2380W |
3140W |
3900W |
5900W |
2x1400W |
2x1960W |
- |
2x2880W |
- |
Bridge @ 8ohms |
1150W |
1580W |
2200W |
2760W |
4050W |
2x1000W |
2x1340W |
2x1950W |
2x2000W |
2x2960W |
P. N. 12dB C.F. |
2 ohms |
2x975W |
2x1360W |
2x2060W |
2x2460W |
2x4225W |
4x890W |
4x1170W |
- |
4x2080W |
- |
4 ohms |
2x610W |
2x880W |
2x1240W |
2x1600W |
2x2600W |
4x580W |
4x820W |
4x1230W |
4x1280W |
4x2110W |
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): >75dB Voltage Gain (selectable): 26/32/38 dB Sensitivity: 1500:2.6/1.3/0.6V 2000:3.0/1.5/0.8V 3000:3.6/1.8/0.9V 4000:4.0/2.0/1.0V 6000:5.0/2.5/1.3V 3004:2.6/1.3/0.6V 4004:3.0/1.5/0.8V 4044:3.7/1.9/0.9V 6004:3.5/1.8/0.9V 6044:5.0/2.5/1.3V Signal to noise ratio: 1500:112dB 2000:113dB 3000:115dB 4000:116dB 6000:118dB 3004:112dB 4004:113dB 4044:116dB 6004:116dB 6044:118dB Required AC Mains (@4ohms 1/8 r.p.): 1500:4A 2000:4.8A 3000:6.2A 4000:7.5A 6000:10.5A 3004:6A 4004:7.5A 4044:11A 6004:10.5A 6044:15A Dimensions (WxHxD): 483x88.9x310 mm - 19x3.5x12.2 inches Weight (Net): 1500/2000: 8Kg - 17.6Lbs 3000/4000/3004/4004/4044: 8.5Kg-18.7Lbs 6000/6004/6044: 8.6Kg-18.9Lbs Protections: Soft-start, Turn-on Turn-off transients, Muting at turn-on, Over-heating, DC, RF, Short-circuit, Open or mismatched loads, Overloaded power supply,ICL™, PMS™, SSP™ |
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 |
Τελικός ενισχυτής 4X60W/4Ω, 4X40W/8Ω, bridged 120W/8Ω (Μono), είσοδοι combination jack balanced, απόκριση συχνότητας 20Hz-50 kHz, S/N 105dB, 2U. Κατάλληλος για εγκαταστάσεις & P.A. 11,5kg.
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
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Product Features: - 4 x 75 Watts into 4 Ohms; 4 x 50 Watts into 8 Ohms
- ATR (Accelerated Transient Response) technology for ultimate punch and clarity
- Ultra-light, ultra-low noise and ultra-efficient switch-mode power supply for noise-free audio, superior transient response and low power consumption
- Independent limiters for each channel offer maximum output level with reliable overload protection
- Detented gain controls for precise setting and matching of sensitivity
- Precise Power, Signal and Clip LEDs to monitor performance
- Servo-balanced XLR and 1/4" TRS inputs plus professional speaker connectors
- Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers without shutting down the show
- “Back-to-front" ventilation system including air filter for reliable operation
- “Built-like-a-tank“, impact-resistant and all-steel 1U rackmount chassis
- Minimum depth chassis (10.1" / 257 mm) and ultra-light weight design (8.8 lbs / 4.0 kg) fits into compact, inexpensive effects racks
- High-quality components and exceptionally rugged construction ensure long life
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Τετρακάναλος τελικός ενισχυτής ζωνών, ισχύος 4 x 80 Watt / 8Ω RMS, 4 x 115 Watt /4Ω RMS,
2 x 230 Watt / 8Ω bridge RMS, ξεχωριστή ρύθμιση έντασης ανά κανάλι, HPF σε κάθε κανάλι,
εισόδους XLR και Euro block, με δυνατότητα κοινής εισόδου κατόπιν επιλογής.
Power Output Level 20Hz - 20kHz 1kHz THD+N=0.2%, 8Ω 80W x 4
Power Output Level 20Hz - 20kHz 1kHz THD+N=0.2%, 4Ω 115W x 4
Sensitivity, RL=8. Att.max +4dB
S/N Ratio, 20Hz-20kHz (DIN AUDIO) 100dB
Idle Power Consumption 40W
1/8 Power Consumption (4Ω) 500W
Power Bandwidth, (Half power THD+N=0.5%) 10Hz – 40kHz
Intermodulation Distortion, 60Hz: 7kHz, 4:1, half power 0.1%
Frequency Response, f=20Hz-20kHz -0.5dB, 0dB, 0dB
Residual Noise, 20Hz-20kHz(DIN AUDIO) -70dB
Voltage Gain, 8Ω, f=1kHz 100
Sensitivity, ATT. max 26dB
Maximum Input Voltage 22dB
Input Impedance 30kΩ (balance) 15kΩ (unbalance)
Controls, Front panel POWER switch (push on/push off), attenuator (31position) x 4
Controls, Rear panel MODE switch (STEREO/BRIDGE/PARALLEL) x 2 HPF switch (OFF/20Hz/55Hz 12dB/oct) x 2
Connectors, Output 5–way binding post/ch
Connectors, DATA PORT D-sub15P, Monitor:Output Level/ch,Active/ch, Model Detect Control:Mute/ch
Connectors, Power AC inlet x 1
Indicators, POWER x 1 (Green)
Indicators, SIGNAL x 4(Green)
Indicators, CLIP/LIMIT x 4 (Red)
Indicators, PROTECT/MUTE x 4 (Red)
Load Protection POWER switch on/off mute, DC-fault output relay off
Power Requirements UC: 120V / 60Hz,
Weight 10kg (22 lbs.)
Dimensions (W x H x D) 480 x 88 x 412.2 mm (18-7/8" x 3-7/16" x 16-1/4“)
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