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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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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)
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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)
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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 |
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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. |
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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™ |
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™ |
Power Output Level: QD4480
8ohm (Quad Ch) 80W
4ohm (Quad Ch) 120W
8ohm bridged mono 240W
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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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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