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This is made possible by our constant development of state-of-the-art designs, together with meticulous component selection and rigorous supervision of assembly quality.
The S Series of RAM Audio amplifiers distils all these features to fulfill all your needs, whether you’re 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
• Optional low latency 24bits 120dB DSP with post-DSP signal links. More info…
• 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)
• PMS™: Power Management System controls the amount of power that the amp delivers under different circumstances.
• SSP™: SOA Sentry Protection effectively limiting the power that the amp could deliver into an incorrect load or to a direct short-circuit
• ICL2™: improved Intelligent Clip Limiting
• Input signal muting at turn on
• Thermal overload protection
• Progressive Ramp input signal
Output Power | S1500 | S2000 | S3000 | S4000 | S6000 | S3004 | S4004 | S4044 | S6004 | S6044 |
2 ohm | 2x975W | 2x1360W | 2x2060W | 2x2460W | 2x4225W | 4x890W | 4x1170W | – | 4x2080W | – |
4 ohm | 2x610W | 2x880W | 2x1240W | 2x1600W | 2x2600W | 4x580W | 4x820W | 4x1230W | 4x1280W | 4x2110W |
8 ohm | 2x340W | 2x500W | 2x680W | 2x900W | 2x1540W | 4x320W | 4x510W | 4x830W | 4x770W | 4x1360W |
Bridge 4 ohm | 1x1950W | 1x2720W | 1x4120W | 1x4920W | 1x8450W | 2x1780W | 2x2340W | – | 2x4160W | – |
Bridge 8 ohm | 1x1220W | 1x1760W | 1x2480W | 1x3200W | 1x5200W | 2x1160W | 2x1640W | 2x2460W | 2x2560W | 2x4220W |
Continuous Power | ||||||||||
2 ohm | 2x880W | 2x1190W | 2x1570W | 2x1950W | 2x2950W | 4x700W | 4x980W | – | 4x1440W | – |
4 ohm | 2x575W | 2x790W | 2x1100W | 2x1380W | 2x2025W | 4x500W | 4x670W | 4x975W | 4x1000W | |
8 ohm | 2x325W | 2x460W | 2x630W | 2x810W | 2x1250W | 4x300W | 4x430W | 4x690W | 4x620W | 4x1015W |
High Z | ||||||||||
70Vrms/100Vpeak | – | – | 2x1240W | 2x2460W | – | – | – | 4x1200W | 4x1500W | – |
100Vrms/140Vpeak | 1x1140W | 1x2500W | – | – | 2x2800W | 2x1100W | 2x2000W | – | – | 4x1700W |
S1500 | S2000 | S3000 | S4000 | S6000 | S3004 | S4004 | S4044 | S6004 | S6044 | ||
Frequency Response (power bandwidth ±0.25dB) | 20 Hz – 20 kHz | ||||||||||
Phase Response (@1W 20Hz-20kHz) | ±15 deg | ||||||||||
Total Harmonic Distortion (20Hz-20kHz) | <0.05% | ||||||||||
Intermodulation Distortion (SMPTE) | <0.05% | ||||||||||
Damping Factor (20Hz-500Hz @8ohm) | >500 | ||||||||||
Crosstalk (20Hz-1kHz) | >75 dB | ||||||||||
Voltage Gain (selectable) | 26/32/38 dB | ||||||||||
Sensitivity | 2.6/1.3/0.6V | 3.0/1.5/0.8V | 3.6/1.8/0.9V | 4.0/2.0/1.0V | 5.0/2.5/1.3V | 2.6/1.3/0.6V | 3.0/1.5/0.8V | 3.7/1.9/0.9V | 3.5/1.8/0.9V | 5.0/2.5/1.3V | |
Signal to noise ratio | 112 dB | 113 dB | 115 dB | 116 dB | 118 dB | 112 dB | 113 dB | 116 dB | 116 dB | 118 dB | |
Required AC Mains |
Operat. Voltage (50Hz-60Hz) | 170 V – 265 V AC | |||||||||
1/8 rated power (230V/4ohm) | 4 A | 4.8 A | 6.2 A | 7.5 A | 10.5 A | 6 A | 7.5 A | 11 A | 10.5 A | 15 A | |
Dimensions (WxHxD) | 483×88.9×310 mm – 19×3.5×12.2 inches | ||||||||||
Weight (Net) | 8 kg – 17.6 lb | 8.5 kg – 18.7 lb | 8.6 kg – 18.9 lb |
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™ and SSP™.
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.
• High performance 120dB 24 bit AD/DA 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: 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)
• DSP_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.
• High performance 120dB 24 bit AD/DA 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.
• GPIO Control Module: it has a general purpose input and output connector to interface with third party controllers like an alarm system. It permits to control the turn on and to report the operating status.