Name: Marantz - 140W 2.0-Ch. Integrated Amplifier - Black
Brand: Marantz
SKU: 4920002
Rating: 5 (1 reviews)

Key Specs
- Continuous Watts x Channel @ Ohms: 35W x 2 @ 8 ohms, 70W x 2 @ 4 ohms
- Number of Channels: 2 (The number of discrete channels of sound output. This can be a single number or multiple numbers separated by decimal(s). The first number is the primary, horizontally directed audio channels. The number after the first decimal, if applicable, is the number of subwoofer outputs or channels. The number after the second decimal, if applicable, is the number of height or atmospheric channels designed to immerse the listener by producing overhead sound effects.)
- Preamp Outputs: false
General
- Product Name: 140W 2.0-Ch. Integrated Amplifier
- Brand: Marantz
- Model Number: HD-AMP1
Audio
- Continuous Watts x Channel @ Ohms: 35W x 2 @ 8 ohms, 70W x 2 @ 4 ohms
- Total Power Handling: 140 watts (How much amplifier (amplified) power (wattage) that can be handled before damaging the product.)
- Number of Channels: 2 (The number of discrete channels of sound output. This can be a single number or multiple numbers separated by decimal(s). The first number is the primary, horizontally directed audio channels. The number after the first decimal, if applicable, is the number of subwoofer outputs or channels. The number after the second decimal, if applicable, is the number of height or atmospheric channels designed to immerse the listener by producing overhead sound effects.)
- Minimum Frequency Response: 20 hertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The minimum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
- Total Harmonic Distortion: 0.05 percent (Measurement of the harmonic sound distortion. The lower the percentage, the cleaner the sound.)
- Maximum Frequency Response: 50 kilohertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The maximum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
- Amplifier Class: D (An amplifier's mode of operation, specifically the conditions in which its electrical current flows for the duration of an audio signal, determines its class. Each class has its strengths and weaknesses when it comes to power efficiency, levels of crossover distortion, and overall sound quality.)
- Signal-to-Noise Ratio (SNR): 105 decibels (The ratio of the desired signal's strength to the level of background noise. A ratio higher than 1:1, which equates to greater than 0 decibels, indicates more signal than noise.)
- Bass Boost: Variable (Circuitry that boosts the bass response of the amplifier, improving audio reproduction enhancing the sound of low frequencies. Fixed boost means the level of bass response is preset, whereas variable boost allows the user to make adjustments.)
Audio
- Impedance: 16 ohms (Describes the resistance of an electric signal throughout the system. Devices with low impedance require less power to deliver optimal signals but are more at risk for damage from overloading. Higher impedance requires more power but is more protected from overload damage.)
Inputs
- Speaker-Level Inputs: false (Also referred to as high-level inputs. Enables the amplifier to receive a sound signal from another device that does not have RCA, or low-level, inputs.)
- Line-Level Inputs: true (Also referred to as low-level inputs. Enables the amplifier to receive a sound signal from another device via RCA cables.)
Outputs
- Preamp Outputs: false
Features
- Fan Cooled: false
- Bridgeable: false (Bridging an amplifier increases the power it supplies to the speaker(s).)
Connectivity
- Wireless Multi-Room Audio: false (Technology that allows multiple speakers and/or soundbars to be connected wirelessly and play audio in separate rooms.)
Dimensions
- Product Height: 4.2 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
- Product Width: 12 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Depth: 13.9 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
- Product Weight: 12.8 pounds (The out of box weight of the item.)
Other
- UPC: 699927131555

The Marantz HD-Amp 1 digital amplifier connects to an iPod or iPhone or other devices through four USB ports. It decodes DSD tracks and uses uncompressed high-resolution formats such as WAV, ALAC and FLAC so you can use any audio type. The Marantz HD-Amp 1 digital amplifier uses Marantz Musical Digital Filtering to offer two filter options for your preference.

140W total power: 35W x 2 @ 8 ohms, 70W x 2 @ 4 ohms, 1kHz for powerful sound.
Marantz Musical Digital Filtering technology: Provide 2 different digital filtering options so you can easily tailor the sound quality to your exacting preference.
USB memory devices and Apple® iPod®, iPhone® compatible: You can play back audio files stored on your device by connecting to the front USB port.
PC or Mac compatible: The rear panel USB-B port is reserved for direct connection to your computer, so you can stream your favorite high resolution music tracks, and it features advanced noise isolation.
Marantz Current Feedback Technology: Provides natural warmth and musicality compared to the standard negative feedback method, helping the HD-AMP1 deliver the utmost audio fidelity for the most enjoyable listening experience.
Marantz Hyper Dynamic Amplifier Module Technology: Features precision discrete component circuit blocks that deliver wide frequency response, ultra-fast slew rate and lowest distortion.