AV Receivers Comparison: Marantz SR5012 vs Harman Kardon HK 3770

Compare detailed specifications, side-by-side differences, verified user reviews, and buying recommendations to help you make the right choice.

Marantz SR5012

Marantz SR5012

  • Brand Marantz
  • USB 1
  • Type fluorescent
  • WI-FI true
  • Bluetooth true
Harman Kardon HK 3770

Harman Kardon HK 3770

  • Brand Harman Kardon
  • USB 1
  • Type fluorescent
  • WI-FI false
  • Bluetooth false

Quick Verdict: Which One Should You Choose?

Deciding between the Marantz SR5012 and the Harman Kardon HK 3770 depends on your available space, storage capacity goals, and everyday usage style:

Best For Maximum Capacity

Marantz SR5012

Designed for large households, bulk grocery shoppers, and long-term storage where total cubic feet is the highest priority.

  • Superior Volume: Easily stores bulk meats, frozen garden harvests, and family packs.
  • Cold Retention: Keeps food frozen significantly longer in power outages.
  • Energy Efficiency: Top-opening design keeps dense cold air trapped inside.
Best For Compact Spaces

Harman Kardon HK 3770

Ideal for apartments, offices, dorms, or secondary kitchen use where space efficiency and neat organization are paramount.

  • Space-Saving Footprint: Fits neatly under counters or in compact corners without intruding.
  • Upright Organization: Shelves allow you to organize and grab items without digging.
  • Everyday Convenience: Front-swing door provides quick, easy access anytime.

Pros & Cons

Marantz SR5012

VS

Pros

    • Good quality of the output audio due to the audio enhancement technologies.
    • The NR5012 is equipped with an ECO mode, which automatically saves electricity.
    • Has simple connectivity to iOS devices.
    • The Audyssey technology makes it flexible in terms of audio configuration.

Cons

    • Issues with online services – it loses the connection.

Harman Kardon HK 3770

VS

Pros

    • The HK 3770 high current amplifier provides you with excellent control
    • I like the Bluetooth function, which allows you to play music from my desktop computer in my office through an amplifier.

Cons

    • After a few hours of listening to music (and I play music from the time I get up to the time I go to bed), it turns off, and I have to wander into another room and return it back.

Specifications

Specification Marantz SR5012 Harman Kardon HK 3770
Additional Features
Three-zone Capability No No
Smartphone Remote Control Yes No
A-B Speaker Switch Yes Yes
Dual-zone Capability Yes No
Pure Direct Mode Yes No
Auto Power Off Yes Yes
Bi-amplifying Yes Yes
Audio Return Channel (ARC) Yes No
Apple Air-play Support Yes No
Advanced Sound Retriever (ASR) Technology Yes No
Functions
Network Audio Player Yes No
Internet Radio Yes Yes
Digital Player Yes Yes
Power Device
Standby Power Consumption 0.15 W 0.5 W
Operational Power Consumption 320 W 480 W
Built-in Decoders
DTS:X Yes No
Dolby True HD Yes No
Dolby Surround Yes No
Dolby Digital Plus Yes No
Dolby Atmos Yes No
Connectivity Interfaces
WI-FI Yes No
Bluetooth Yes No
IEEE 802.3u Yes No
IEEE 802.3 Yes No
Connector Type
Optical Digital Inputs 2 2
Phones 1 1
AV Inputs 2 6
USB 1 1
Subwoofer Outputs 2 1
Coaxial Digital Outputs has not has not
Optical Digital Outputs has not has not
HDMI Outputs 2 has not
HDMI Inputs 8 has not
Coaxial Digital Inputs 2 1
Audio Formats
WMA Yes Yes
WAV Yes Yes
MP3 Yes Yes
FLAC Yes Yes
Apple Lossless Yes Yes
AIFF Yes No
AAC Yes Yes
Radio
Preset Station 40 40
Tuner Bands AM/FM AM/FM
Tuner Type digital digital
Clock
Sleep Timer Yes Yes
Built-in Clock Yes Yes
Built-in Display
Colour black black
Type fluorescent fluorescent
Signal Processing
Upscaling Via HDMI up to 4K No
3D Pass-through Yes No
Video Conversion/scaling HDMI to HDMI scaling, analog to HDMI up conversion No
HDMI Pass-through up to 4K No
Amplifier
Total Harmonic Distortion 0.08 % 0.07 %
Frequency Response 20 Hz-20 kHz 20 Hz-20 kHz
Output Impedance Per Channel 4 Ohm 8 Ohm
Output Power Per Channel 100 W 120 W
Total Output Power 700 W 240 W
Sound Features
Digital Content Protection HDCP 2.2 —
Surround System Class 7.2 channel 2.0 channel
Surround Sound Effects Theater-Dimensional Virtual Surround has not
Audio D/A Converter 24bit / 192kHz 24bit / 192kHz
Media Content Source
USB-host Yes Yes
Network Yes Yes
Bluetooth Yes No
Dimensions
Dimensions 13.6 x 17.3 x 6.3 inches 11.8 x 17.3 x 4.8 inches
General
Brand Marantz Harman Kardon

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Frequently Asked Questions

The main differences center around storage capacity, form factor, and convenience. The Marantz SR5012 provides extensive bulk storage capacity best suited for homes, garages, or basements needing deep freeze space. In contrast, the Harman Kardon HK 3770 offers a compact upright design that fits into smaller spaces with convenient shelf organization.

Chest-style freezers generally excel in thermal efficiency because cold air naturally settles at the bottom and does not escape when the lid is lifted. Compact upright models have lower total kilowatt-hour usage simply due to their smaller cubic volume, making both designs efficient for their respective intended purposes.

Both products are listed on Amazon with full manufacturer warranties, customer reviews, and fast delivery options. Click the "Check Price on Amazon" buttons in the comparison cards above to view today's latest promotions, verified customer ratings, and current availability.

Measure your available floor clearance first. If you have open space in a garage, basement, or utility room and want to freeze items in bulk, choose the Marantz SR5012. If you have limited room in a kitchen, apartment, dorm, or office and prefer easy eye-level access to items, choose the Harman Kardon HK 3770.