Marantz AMP 20 Reference 12 Channel Power Amplifier
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Twelve Channels in One Chassis, Built in Shirakawa
There comes a point where a receiver runs out of room. Another Atmos pair, a wider front stage, speakers that want more current than one box can give. The Marantz AMP 20 answers twelve of those channels at once.
Each of the twelve channels is rated at 200 watts into 8 ohms, or 400 watts into 4 ohms. That runs a 7.1.4 layout from one component. Marantz builds it at
- 12-Channel Power Amplifier: Drive up to 12 speakers from a single chassis, making the AMP 20 a strong fit for large Dolby Atmos and other multi-channel home theater systems.
- 200 Watts Per Channel: AMP 20 is rated at 200 watts per channel into 8 ohms, giving demanding home theater speakers substantial power and dynamic headroom.
- Custom Class D Amplification: Marantz-developed switching amplifier modules combine high output with an efficient design while maintaining low distortion across the audio range.
- HDAM Technology: A high-speed preamplifier circuit using Marantz Hyper Dynamic Amplifier Module technology is designed to preserve fine musical and soundtrack detail.
- Current Feedback Amplification: Marantz's high-speed current-feedback circuit is designed for accurate response to fast-changing audio signals and natural sound-field reproduction.
- Balanced and Unbalanced Inputs: Each amplifier channel can receive either a balanced XLR or unbalanced RCA signal, giving you flexibility when matching the AMP 20 with different processors and preamplifiers.
- Bi-Amp Mode: Channel pairs can be configured to separately power the high- and low-frequency sections of compatible bi-amp speakers.
- BTL Bridge Mode: Pair two amplifier channels to deliver 400 watts into an 8-ohm speaker when more output is required.
- Individual Channel-Pair Configuration: Rear-panel selectors let you configure channel pairs for Normal, Bi-Amp, or BTL operation to suit different system layouts.
- Premium Speaker Terminals: Machined brass speaker terminals provide secure connections, and Marantz includes a dedicated terminal wrench for tightening them.
- Copper-Plated, Double-Layer Chassis: The substantial chassis construction is designed to improve rigidity and help protect sensitive audio circuitry from unwanted interference.
- Front-Panel Level Meter: Marantz's signature porthole houses an illuminated level meter that displays the Channel 1 input signal level.
- AMP CONTROL Integration: Connect AMP 20 to a compatible Marantz AV preamplifier with the included AMP Control cable for linked power and illumination operation.
- Custom-Installation Connections: RS-232C, IR Flasher input, DC trigger input/output, and Marantz Remote Control connections make the amplifier easier to integrate into advanced home theater systems.
- Auto Standby: When enabled, AMP 20 automatically enters standby after 15 minutes without an input signal or user operation.
- Sound Master Tuned: AMP 20 is tuned by Marantz Sound Masters and manufactured at the Shirakawa Audio Works in Japan.
- Product Type: Reference 12-channel power amplifier
- Amplifier Technology: Custom Class D / switching power amplifier modules
- Number of Power Amplifiers: 12
- Power Output, Normal Mode: 200 watts x 2 into 8 ohms, 1 kHz, 0.05% THD
- Power Output, 4 Ohms: 400 watts x 2 into 4 ohms, 1 kHz, 0.7% THD
- Power Output, 5 Channels Driven: 200 watts per channel into 8 ohms, 1 kHz, 0.7% THD
- BTL / Bridged Power Output: 400 watts into 8 ohms, 1 kHz, 0.05% THD
- Supported Speaker Impedance: 4–16 ohms in Normal or Bi-Amp mode; 8–16 ohms in BTL mode
- Frequency Response: 5 Hz–70 kHz, ±3 dB, 1 watt into 8 ohms
- Signal-to-Noise Ratio: 110 dB, IHF-A
- Voltage Gain: 29 dB
- Unbalanced Input Sensitivity / Impedance: 1.4 V / 47 kohms
- Balanced Input Sensitivity / Impedance: 2.8 V / 100 kohms
- Analog Inputs: 12 unbalanced RCA; 12 balanced XLR, selectable per channel
- Speaker Terminals: 12
- Selectable Output Modes: Normal; Bi-Amp; BTL
- Front Display: Illuminated level meter
- Chassis: Copper-plated, double-layer construction
- Control Connections: RS-232C; IR Flasher input; Marantz Remote Control; AMP Control; DC Trigger input/output
- DC Trigger: 1 input / 1 output
- Auto Standby: Yes
- Power Supply: AC 120 V, 60 Hz
- Power Consumption: 400 watts
- No-Sound Power Consumption: 110 watts
- Standby Power Consumption: 0.2 watt
- Maximum Dimensions (W x D x H): 17.4 x 17.4 x 7.5 inches
- Weight: 39.7 lbs.
- Finish: Black, U.S. model
- Included Accessories: Quick Start Guide, AC power cord, AMP Control cable, Remote Control cable, and speaker-terminal wrench
- UPC: 747192143930
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