Marantz STEREO 70s

Get serious home cinema with only two speakers. All the technology found in full-size surround sound AV receivers in a slimline, stereo receiver. 75-watts-per-channel, with 8K HDMI, subwoofer output, and streaming built-in.

  • Dual Subwoofer Outputs
  • Pre-Amp Output
  • 8K HDMI
  • 75 Watts Per Channel



Home Cinema from Only Two Channels

STEREO 70s merges the flexibility and features found in our CINEMA Series AVRs into a slim and simple 2 channel receiver. 8K HDMI plus ARC facilitates connection of smart TVs, game consoles and streaming systems. On screen display uses your TV screen to assist with setup. Support for up to 2 subwoofers means plenty of deep bass even when using small bookshelf speakers.


High Resolution Audio

Carefully engineered with specially chosen components, STEREO 70s unveils the natural immersiveness and power of sound. Crystal clear digital decoding of up to 192 kHz 24-bit audio and DSD opens a new world of high resolution music with depth, breadth, and clarity not available with lossy files.



Slim and Elegant

Marantz design is timelessly elegant—an expression of the musical soundscapes the products create. Our philosophy of balance and symmetry is evident in our sound and our designs. Meticulously engineered in a compact chassis, STEREO 70s fits where standard equipment cannot.



HEOS® Built-in Multi-Room Streaming

HEOS® Built-in technology lets you enjoy your favorite music in any room of your home for a wireless, whole-home audio experience. Play the same song in every room or select a different song for each connected room—the choice is yours.

Power Amplifier
Numbered of Powered Channels2
Power Output (8 ohm, 20 Hz – 20 kHz, 0.08% 2ch Drive)75W
Power Output (6 ohm, 1 kHz, 0.7% 2ch Drive)100W
Power Output (6 ohm, 1 kHz, 10% 1ch Drive)150W
Discrete Power AmplifierYes
Amplifier TopologyClass A/B
HDMI In/Out6 / 1
Analog In / Fixed Level Out3 in / out
Multi-Room Out: analog / digital1 / 0
Number of Speaker Terminals4
USB AudioUSB A (Host)
AM/FM TunerYes
Multichannel Surround Technologies
Max Number of Processing (Preamp) Channels2,1
Total HDMI Inputs / No. Support 8K6 / 3
HDCP2.3 supportYes
HDMI Upscaling1080P/4K to 8K
Audio Return ChannelARC
Video Dynamic RangeHDR / HLG / Dolby Vision / HDR10+ / Dynamic HDR
Variable Refresh Rate / Quick Frame TransportYes / Yes
HDMI Pass-Through in Standby ModeYes
Performance Technologies
Pure Direct ModeYes
Gold Plated RCA TerminalsYes
Ghyper Dynamic Amplifier Modules (HDAM)Yes
Music File Support
Lossy FormatsMP3 / WMA / AAC
Lossless formatsFLAC HD 192/24
WAV 192/24
ALAC 192/24
DSD Audio2.8 MHz / 5.6MHz
Compressed Audio EnhancerL MDAX2Yes
Network Audio SharingYes
Streaming Services
HEOS Multi-room and StreamingYes
AirPlay Audio StreamingAirPlay2
Internet RadioTuneIn
Network Connectivity
Ethernet PortsYes
Bluetooth Re-transmit for Bluetooth headphonesYes (with volume control)
Smart Home Integration And Control
Voice Assistant CompatibilityAlexa / Google Voice Assistant / Apple HomePod / JoshAi
App for Smart Phones & Tablets (iOS & Android)Marantz AVR App
Multi-Room zones1
Front Displayport hole OLED
ECO ModeYes
Auto Power offYes
Sleep TimerYes
System Remote ControlRC-052SR
Power Consumption in W 210
Standby Consumption in W0.2
CEC Standby Consumption in W0.5
Network Standby Consumption in WLess than 2.0
Maximum Dimensions
(w/o Antenna)
441.96 x 373.38 x 109.22mm
(17.4″ x 14.7″ x 4.3″)