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Photos and specs Stereo amplifier Marantz HD-AMP1

Review and test Stereo amplifier Marantz HD-AMP1
  • Stereo amplifier Marantz HD-AMP1
  • Stereo amplifier Marantz HD-AMP1
  • Stereo amplifier Marantz HD-AMP1
  • Stereo amplifier Marantz HD-AMP1
  • Stereo amplifier Marantz HD-AMP1

Description stereo amplifier, Marantz HD-AMP1

Integrated amplifier HD-AMP1 was designed by Marantz "from scratch" to fully meet the modern requirements to machinery of this class. At the same time, the appearance of the device is quite recognizable, both from the point of view of the design (most notable here is the round display on the front panel) and the traditional high quality finish. Perhaps the only feature of the appearance of HD-AMP1 are reduced compared to standard Hi-Fi components size, which, however, does not affect its functionality.


The device is manufactured on dual-layered chassis with additional bottom plate, which effectively dampens any mechanical vibrations that can compromise sound. HD-AMP1 is the first model Marantz of this class, which uses pulse technology boosts. Specialists in long radiated circuitry class D, with the goal to be achieved through its use of sound quality that meet the high Marantz standards. As a result, using a proprietary HDAM modules and specially designed overall current feedback managed to create a device class D, which can handle speakers with different impedance and has a real Marantz sound. The amplifier develops the output 2 x 70 W load resistance of 4 ohms, and is equipped with super-stable power supply with a large power reserve.


Rear-panel HD-AMP1 has two linear analog inputs, coaxial, two optical, and a USB connector for PC connection. At last, you can apply a digital stream with options up to 32 bit / 384kHz (PCM) and DSD 2,8/5,6/11,2 MHz. In addition, through the USB socket on the front panel of the amplifier can play music files of all popular formats, including FLAC and WAV, with parameters up to 24 bit / 192 kHz and DSD 2.8 / 5.6 MHz. Also it is possible to connect an iPod/iPhone.


In this amplifier uses the DAC based on Sabre chip ES9010KM2, selected components in audiotape and the PCB of the stereo channels with a symmetric topology. For headphones in HD-AMP1 uses a separate schema audiophile, and if you want to have the deepest bass to the HD-AMP1 you can connect a subwoofer.


Features stereo amplifier, Marantz HD-AMP1


Compact form factor
Support high-resolution audio, including DSD
Two USB inputs for computer and external drives
Separate circuit for headphones, a subwoofer output


Features stereo amplifier, Marantz HD-AMP1

Typeintegrated stereo amplifier
Output power 2 x 35 watts (8 Ohms), 2 x 70 watts (4 Ohms)
Inputs 2 linear, coaxial, 2 optical, USB-A, USB-B (front panel) on system remote control
Outputsheadphone, subwoofer, remote control system
Frequency range20 Hz – 50 kHz
The ratio signal/noisemore than 105 dB
Total harmonic distortionless than 0.05%
Playback USB-APCM up to 32 bit / 384 kHz, DSD 2,8 / 5,6/11,2 MHz
USB playback-InWMA, MP3, AAC-1, AAC (up to 24bit / 192kHz), FLAC (up to 24bit / 192kHz), AIFF (up to 24bit / 192kHz), ALAC -2 (up to 24-bit / 96 kHz), DSD 2.8 / 5.6 MHz
Connecting an iPod/iPhonefront USB connector (USB-B)
Input sensitivity200 mV / 22 kOhm
DACSABRE ES9010KM2
Version HDAMHDAM SA2
Power consumption55 watts (nominal), 0.3 W (Standby)
Dimensions (W x h x D)304 x 107 x 352 mm
Weight 5.8 kg

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