this auction is for a rare amp from germany called the RAMbo limited edition 6 channel amp made by signat. this has a gold plated circuit board and can put out 900 watts rms. it is long and heavy. it puts out very clean power and it sounds a lot louder than 900 watts. the amp is not perfect looking so look at the pictures. it works perfectly. here is the story of the ram amps which this has 2 of in one chassis: RAM SeriesSIGNAT amplifiers of the RAM MARK II and ROC series have been developed according to the American concept; the audiophile fine-tuning was executed by SIGNAT in co-operation with the engineers of Backes & Mueller. The result is fantastic: units designed with great accuracy and excellent finish. In order to withstand extreme in-car conditions such as vibrations and shocks, the RAM amplifiers have been equipped with double-sided PC boards, strengthened by glassfibre. This technique, together with a neat layout of the PC board, ensures a reliable operation.All SIGNAT amplifiers feature an outstanding finish and use high-quality components.The RAM power amplifiers come with low-distortion bipolar technique, operating in dynamic class A-mode. Due to this special principle, tri-mode and bridged operationare possible without the need of an additional switch. The amplifiers are protected by effective monitoring and protection circuitry; in case of a short circuit, thermal or electric overload, the amplifier is muted immediatly and can only be operated again when normal conditions prevail. The speaker output terminals are protected by DC offset. 24 carat gold plating of the PC boards minimizes possible transmission losses. All conductors are protected against corrosion.High-performance, carefully selected components, and an exact and detaild finishing guarantee an optimum sound performance. Both speaker and power terminals are 24 carat gold-plated, ensuring a signal transmission absolutely free of losses. The terminals are enclosed in plastic to avoid shorting; the extremely stable screw terminals accept cables up to 20 mm2 cross-section.The Press Test: hifi mobil RAM MARK IIValue money ***... the RAM 2 is excellently finished and offers all the possibilities of a 4-channel amplifier. All channel come with both low and high pass filters..... the SIGNAT amplifier can be strongly recommended to anybody who is looking for a very powerfull amplifier.´´Second order active electronic crossovers order active electronic crossovers (with a 12 dB/oct slope) ensure a perfect sound adaption to your speaker systems.Low pass or high pass configuration can be selected; the cut-off frequencies of all filters are continuously variable between 50 and 250 Hz. Voltage supply is granted by super fast power-MOSFET transistors; the effective switching power supplies guarantee maximum performance with minimum heat development. Every RAM MARK II amplifier features separate high-power supplies, reducing the mutual influencing of the amplifiers to a minimum. Due to the extremely stable power supply, RAM MARK II amplifiers tolerate impendences down to 1 Ohm. Thanks to the super fast pre-amplifiers with a high voltage/noise-ratio the RAM MARK II amplifiers offer outstanding dynamics and transparency.rambo * Glass fiber reinforced, double-sided clad printed circuit board* Minimum transmission losses thanks to 24-carat hard gold coating on all conductor tracks* Ultra-stable switched-mode power supplies in MOSFET technology with 4 separate power transformers* Dynamic Class-A power output stage in bipolar technology* 24-carat hard gold-plated RCA plugs, Loudspeaker connections and power terminals* 1 ohm stable* Bridgeable* Tri-mode compatible *Soft start* Electronic protection circuits: thermal overload, electrical overload, short circuit and DC offset monitoring at the loudspeaker terminals* Integrated crossover, adjustable:low-pass filter (12dB /Oct.), frequency variableHigh-pass filter (12dB/oct.), frequency variablefull range* switchable bass boost function +6dB* easy-to-install chassis design* operating voltage +12V DC, minus groundMax. peak output power: 1150 wattsRMS output power at 4 Ohms (THD=0.1%): 2 x 150 watts + 4 x 85 wattsRMS output power at 4 ohms, bridged (THD=0.1%): 1 x 450 watts + 2 x 230 wattsRMS output power at 2 Ohms (THD=0.2%): 2 x 230 watts + 4 x 120 wattsRMS output power at 2 ohms, bridged (THD=0.2%): 1 x 500 watts + 2 x 280 wattsRMS output power at 1 Ohms (THD=0.2%): 2 x 280 watts + 4 x 160 wattsSignal-to-noise ratio (A filter): 105 dB AFrequency response: 10 Hz - 50 kHzRate of rise: 10 V / müsecStereo channel separation: 70 dBInput sensitivity: 100 mV to 4.0 VInput impedance: 20 kOhmDamping factor: 200 / 300Fuses: 4 x 30 ADimensions W x H x D: 230 x 57 x 700 mmshipping will be by fedex and it is free to the lower 48 states. hawaii and alaska contact me first for a usps quote.

this auction is for a rare amp from germany called the RAMbo limited edition 6 channel amp made by signat. this has a gold plated circuit board and can put out 900 watts rms. it is long and heavy. it puts out very clean power and it sounds a lot louder than 900 watts. the amp is not perfect looking so look at the pictures. it works perfectly. here is the story of the ram amps which this has 2 of in one chassis: RAM SeriesSIGNAT amplifiers of the RAM MARK II and ROC series have been developed according to the American concept; the audiophile fine-tuning was executed by SIGNAT in co-operation with the engineers of Backes & Mueller. The result is fantastic: units designed with great accuracy and excellent finish. In order to withstand extreme in-car conditions such as vibrations and shocks, the RAM amplifiers have been equipped with double-sided PC boards, strengthened by glassfibre. This technique, together with a neat layout of the PC board, ensures a reliable operation.All SIGNAT amplifiers feature an outstanding finish and use high-quality components.The RAM power amplifiers come with low-distortion bipolar technique, operating in dynamic class A-mode. Due to this special principle, tri-mode and bridged operationare possible without the need of an additional switch. The amplifiers are protected by effective monitoring and protection circuitry; in case of a short circuit, thermal or electric overload, the amplifier is muted immediatly and can only be operated again when normal conditions prevail. The speaker output terminals are protected by DC offset. 24 carat gold plating of the PC boards minimizes possible transmission losses. All conductors are protected against corrosion.High-performance, carefully selected components, and an exact and detaild finishing guarantee an optimum sound performance. Both speaker and power terminals are 24 carat gold-plated, ensuring a signal transmission absolutely free of losses. The terminals are enclosed in plastic to avoid shorting; the extremely stable screw terminals accept cables up to 20 mm2 cross-section.The Press Test: hifi mobil RAM MARK IIValue money ***... the RAM 2 is excellently finished and offers all the possibilities of a 4-channel amplifier. All channel come with both low and high pass filters..... the SIGNAT amplifier can be strongly recommended to anybody who is looking for a very powerfull amplifier.´´Second order active electronic crossovers order active electronic crossovers (with a 12 dB/oct slope) ensure a perfect sound adaption to your speaker systems.Low pass or high pass configuration can be selected; the cut-off frequencies of all filters are continuously variable between 50 and 250 Hz. Voltage supply is granted by super fast power-MOSFET transistors; the effective switching power supplies guarantee maximum performance with minimum heat development. Every RAM MARK II amplifier features separate high-power supplies, reducing the mutual influencing of the amplifiers to a minimum. Due to the extremely stable power supply, RAM MARK II amplifiers tolerate impendences down to 1 Ohm. Thanks to the super fast pre-amplifiers with a high voltage/noise-ratio the RAM MARK II amplifiers offer outstanding dynamics and transparency.rambo * Glass fiber reinforced, double-sided clad printed circuit board* Minimum transmission losses thanks to 24-carat hard gold coating on all conductor tracks* Ultra-stable switched-mode power supplies in MOSFET technology with 4 separate power transformers* Dynamic Class-A power output stage in bipolar technology* 24-carat hard gold-plated RCA plugs, Loudspeaker connections and power terminals* 1 ohm stable* Bridgeable* Tri-mode compatible *Soft start* Electronic protection circuits: thermal overload, electrical overload, short circuit and DC offset monitoring at the loudspeaker terminals* Integrated crossover, adjustable:low-pass filter (12dB /Oct.), frequency variableHigh-pass filter (12dB/oct.), frequency variablefull range* switchable bass boost function +6dB* easy-to-install chassis design* operating voltage +12V DC, minus groundMax. peak output power: 1150 wattsRMS output power at 4 Ohms (THD=0.1%): 2 x 150 watts + 4 x 85 wattsRMS output power at 4 ohms, bridged (THD=0.1%): 1 x 450 watts + 2 x 230 wattsRMS output power at 2 Ohms (THD=0.2%): 2 x 230 watts + 4 x 120 wattsRMS output power at 2 ohms, bridged (THD=0.2%): 1 x 500 watts + 2 x 280 wattsRMS output power at 1 Ohms (THD=0.2%): 2 x 280 watts + 4 x 160 wattsSignal-to-noise ratio (A filter): 105 dB AFrequency response: 10 Hz - 50 kHzRate of rise: 10 V / müsecStereo channel separation: 70 dBInput sensitivity: 100 mV to 4.0 VInput impedance: 20 kOhmDamping factor: 200 / 300Fuses: 4 x 30 ADimensions W x H x D: 230 x 57 x 700 mmshipping will be by fedex and it is free to the lower 48 states. hawaii and alaska contact me first for a usps quote.

this auction is for a rare amp from germany called the RAMbo limited edition 6 channel amp made by signat. this has a gold plated circuit board and can put out 900 watts rms. it is long and heavy. it puts out very clean power and it sounds a lot louder than 900 watts. the amp is not perfect looking so look at the pictures. it works perfectly. here is the story of the ram amps which this has 2 of in one chassis: RAM SeriesSIGNAT amplifiers of the RAM MARK II and ROC series have been developed according to the American concept; the audiophile fine-tuning was executed by SIGNAT in co-operation with the engineers of Backes & Mueller. The result is fantastic: units designed with great accuracy and excellent finish. In order to withstand extreme in-car conditions such as vibrations and shocks, the RAM amplifiers have been equipped with double-sided PC boards, strengthened by glassfibre. This technique, together with a neat layout of the PC board, ensures a reliable operation.All SIGNAT amplifiers feature an outstanding finish and use high-quality components.The RAM power amplifiers come with low-distortion bipolar technique, operating in dynamic class A-mode. Due to this special principle, tri-mode and bridged operationare possible without the need of an additional switch. The amplifiers are protected by effective monitoring and protection circuitry; in case of a short circuit, thermal or electric overload, the amplifier is muted immediatly and can only be operated again when normal conditions prevail. The speaker output terminals are protected by DC offset. 24 carat gold plating of the PC boards minimizes possible transmission losses. All conductors are protected against corrosion.High-performance, carefully selected components, and an exact and detaild finishing guarantee an optimum sound performance. Both speaker and power terminals are 24 carat gold-plated, ensuring a signal transmission absolutely free of losses. The terminals are enclosed in plastic to avoid shorting; the extremely stable screw terminals accept cables up to 20 mm2 cross-section.The Press Test: hifi mobil RAM MARK IIValue money ***... the RAM 2 is excellently finished and offers all the possibilities of a 4-channel amplifier. All channel come with both low and high pass filters..... the SIGNAT amplifier can be strongly recommended to anybody who is looking for a very powerfull amplifier.´´Second order active electronic crossovers order active electronic crossovers (with a 12 dB/oct slope) ensure a perfect sound adaption to your speaker systems.Low pass or high pass configuration can be selected; the cut-off frequencies of all filters are continuously variable between 50 and 250 Hz. Voltage supply is granted by super fast power-MOSFET transistors; the effective switching power supplies guarantee maximum performance with minimum heat development. Every RAM MARK II amplifier features separate high-power supplies, reducing the mutual influencing of the amplifiers to a minimum. Due to the extremely stable power supply, RAM MARK II amplifiers tolerate impendences down to 1 Ohm. Thanks to the super fast pre-amplifiers with a high voltage/noise-ratio the RAM MARK II amplifiers offer outstanding dynamics and transparency.rambo * Glass fiber reinforced, double-sided clad printed circuit board* Minimum transmission losses thanks to 24-carat hard gold coating on all conductor tracks* Ultra-stable switched-mode power supplies in MOSFET technology with 4 separate power transformers* Dynamic Class-A power output stage in bipolar technology* 24-carat hard gold-plated RCA plugs, Loudspeaker connections and power terminals* 1 ohm stable* Bridgeable* Tri-mode compatible *Soft start* Electronic protection circuits: thermal overload, electrical overload, short circuit and DC offset monitoring at the loudspeaker terminals* Integrated crossover, adjustable:low-pass filter (12dB /Oct.), frequency variableHigh-pass filter (12dB/oct.), frequency variablefull range* switchable bass boost function +6dB* easy-to-install chassis design* operating voltage +12V DC, minus groundMax. peak output power: 1150 wattsRMS output power at 4 Ohms (THD=0.1%): 2 x 150 watts + 4 x 85 wattsRMS output power at 4 ohms, bridged (THD=0.1%): 1 x 450 watts + 2 x 230 wattsRMS output power at 2 Ohms (THD=0.2%): 2 x 230 watts + 4 x 120 wattsRMS output power at 2 ohms, bridged (THD=0.2%): 1 x 500 watts + 2 x 280 wattsRMS output power at 1 Ohms (THD=0.2%): 2 x 280 watts + 4 x 160 wattsSignal-to-noise ratio (A filter): 105 dB AFrequency response: 10 Hz - 50 kHzRate of rise: 10 V / müsecStereo channel separation: 70 dBInput sensitivity: 100 mV to 4.0 VInput impedance: 20 kOhmDamping factor: 200 / 300Fuses: 4 x 30 ADimensions W x H x D: 230 x 57 x 700 mmshipping will be by fedex and it is free to the lower 48 states. hawaii and alaska contact me first for a usps quote.