Marantz HD AMP1 Integrated Amplifier with Built-in DAC - Hi-Fi Audio System for Home Theater & Music Listening (Used, Demo Available)

No original packaging, but can safely pack and ship!

Famous Marantz sound in a space-saving package

Folks around here at Crutchfield really go for the warm, detailed sound of Marantz amps, and so do our customers — just check out all the glowing reviews. But a full-size Marantz amp may not always be right for every room.  If your system is going in a bedroom, den, dorm room, or home office something a bit smaller like the Marantz HD-AMP1 could sure come in handy. This compact integrated amp delivers the powerful, dynamic punch that Marantz amps are famous for, but in a more space-saving size.

A versatile high-res champ

Just because it's small, don't think the HD-AMP1 is short on features. With its built-in, high-resolution digital-to-analog converter and array of both digital and analog inputs, this amp is ready to play from a wide variety of sources such as network music streamers, disc players, a TV, or a computer. Plus, a convenient front-panel USB port makes it easy to plug in an iPod®, iPhone®, or a thumb drive loaded with music.

Connect your computer via the HD-AMP1's rear-panel USB input and enjoy your entire library of digital tunes through your favorite speakers. If you're into downloading high-resolution audio from websites like , 2L, or Blue Coast Records, you'll love this amp. Not only can it make your MP3 and CD-quality music sound fantastic, but it also decodes high-res audio files up to 32-bit/384kHz resolution, so you can enjoy better-than-CD audio quality. (Free required for Windows® PC playback.) And this Marantz supports 2.8MHz, 5.6MHz, and 11.2MHz DSD digital audio signals for bit-transparent playback of those high-res digital music files. 

A Marantz first

Once it sinks its teeth into your music, the HD-AMP1 knows just how to deliver warm, dynamic sound to your speakers. The conservative 35-watt stereo power rating only tells part of this amp's story. Power is generated by a wide-bandwidth, audiophile Class D amplifier — a first-ever for a Marantz component amplifier — and voiced by Ken Ishiwata, Marantz's renowned design guru. This efficient, cool-running design allows the amp to handle the heavy demands of 4-ohm speakers as well as dynamic peaks in music without breaking a sweat. The output stage utilizes current feedback circuitry — first developed by Marantz — to ensure clean playback with minimal distortion while driving both easy and difficult loads. So when that muted trumpet solo is suddenly augmented with the full power of the entire horn section, the HD-AMP1 can handle that sudden jolt of brass cleanly in all its dynamic glory.

Product highlights:

• 35 watts x 2 channels into 8 ohms (20-20,000 Hz) at 0.1% THD
• 70 watts x 2 channels into 4 ohms (20-20,000 Hz) at 0.1% THD
• ESS SABRE DAC ES9010K2M and dual master clock crystals for wide bandwidth, high dynamic range, and low distortion
• back-panel USB port supports PCM digital audio sources up to 32-bit/384 kHz resolution, plus native support of Direct Stream Digital (DSD) files up to 11.2 Mhz (DSD256) resolution
• front-panel USB input plays USB memory devices and iPod®/iPhone®
  • compatible with MP3, WMA, AAC, FLAC, ALAC, AIFF, and WAV music files
• asynchronous USB technology with advanced noise isolation for reduced timing jitter and better sound on USB input
• built-in high-performance headphone amplifier
  • three-position gain switch optimizes performance with low-, medium-, and high-impedance headphones
• Marantz HDAM® (Hyper Dynamic Amplifier Module) and HDAM-SA2 modules used in analog circuitry for faster signal transfer and better transient response
• Marantz Musical Digital Filtering technology with 2 user-selectable digital filter algorithms for tailoring the sound to your liking
• vibration-resistant solid aluminum front panel and double-layer bottom plate
• simulated wood-grain side panels for a cool retro look
• wireless remote

Inputs:

• rear-panel USB (Type B) port for connection to a computer
• front-panel USB (Type A) port for connecting USB memory devices and iPod/iPhone
• two Toslink optical digital
• 1 coaxial digital
• 2 stereo RCA analog
• no phono input — to connect a turntable you'll need to add a

Outputs:

• RCA mono subwoofer output for connecting a powered subwoofer
• full-size 1/4" headphone jack (compatible with headphones up to 600 ohms impedance)
• custom Marantz gold-plated solid brass speaker terminals
• RCA remote control input/output (for use with Marantz components with a compatible remote control in/out jack)

Other Info & Specs:

• cool-running, high-performance Class D amplifier
• USB Audio 2.0 driver required for high-resolution audio playback on Windows computers (free available from Marantz's website)
• frequency response (DSD mode, PCM sampling frequency: 192 kHz ): 2-50,000 Hz (-3 dB)
• frequency response (PCM sampling frequency: 44.1 kHz): 2-20,000 Hz (-3 dB)
• harmonic distortion: 0.05% (at 1kHz)
• signal-to-noise ratio: 105 dB
• detachable
• 12"W x 4-1/4"H x 13-15/16"D
• weight: 12.8 lbs.
• If connecting to a TV, please make sure you can select "PCM" output in your TV's audio menu. This DAC cannot decode multi-channel Dolby® Digital signals.