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  • Serie S

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Modern power amplifiers have developed into light, powerful, versatile, rugged and reliable instruments designed to keep working in the most arduous conditions. At RAM Audio, we have an enviable reputation in the industry, and continue to stay at the forefront of audio design by offering our many customers all those concepts combined with the following major advantage: a sensible price level for our pedigree products.

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 Pwr
2 ohm 2x880W 2x1190W 2x1570W 2x1950W 2x2950W 4x700W 4x980W - 4x1440W -
4 ohm 2x575W 2x790W 2x1100W 2x1380W 2x2025W 4x500W 4x670W 4x975W 4x1000W 4x1480W
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

• Frequency Response (power bandwidth ±0.25dB): 20Hz-20kHz

• Phase Response (@1W 20Hz-20kHz): ±15deg

• Total Harmonic Distortion (20Hz-20kHz): <0.05%

• Intermodulation Distortion (SMPTE): <0.05%

• Damping Factor (20Hz-500Hz @8ohm): >500

• Crosstalk (20Hz-1kHz): >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 (230V AC Mains @4ohm 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): 483×88.9×310 mm – 19×3.5×12.2 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™

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.

More info…

• 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.

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