Item# HK3700AM

HK 3700


170 watt stereo receiver with network connectivity

$349.95349.95 each
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Harman Kardon’s reputation for excellence in sound quality and distortion-free power just moved forward to embrace the best of both digital and analog worlds. Discover 170 watts of power in a stereo receiver dedicated to complete connectivity for all your devices. The high-performance, Harman Kardon HK 3700 stereo receiver delivers everything you need to drive any home audio system. With analog and digital connectivity, the HK 3700 delivers plenty of power and offers a built-in, 192 kHz/24-bit DAC. Connect to your home network via Ethernet, playing all your local content over DLNA 1.5 or connect a storage device or any Apple iOS device via USB. And, with built-in AM/FM radio and phono input, the HK 3700 eloquently bridges classic and modern audio. It is a truly powerful centerpiece for your home audio system – a happy collision of old school sound requirements to new school needs for complete connectivity. Enjoy your new entertainment headquarters – to the envy of all who see and hear it.

Know What's In The Box

  • 1 Harman Kardon HK 3700 System
  • 1 FM radio antenna
  • 1 6' (1.8m) region-specific IEC power cord
  • 2 AAA batteries
  • 1 AM antenna loop
  • 1 programmable remote control

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It can only look and sound like a Harman Kardon if it carries the Harman Kardon name. And the advanced-caliber power derived from its high-current capability amplifiers provides you with what you need to drive the high quality sound you demand from all your playback sources and electronic devices.

Get the best of both worlds with total connectivity for both analog and digital playback.

A dedicated remote application for control over iOS and Android platforms – complete with an intuitive menu system – is available in an instant through the Harman Kardon Remote app. Life couldn’t be simpler with this streamlined edge on user control.

Power Consumption
Less than 0.5W (standby)
Power per channel
85 watts per channel, two channels driven @ 6/8 ohms, 20Hz – 20kHz, less than 0.07% THD
Input Sensitivity/Impedance
250mV/27k ohms
Signal-to-Noise Ratio (IHF-A)
Frequency Response (@ 1W)
10Hz – 130kHz (+0dB/–3dB)
Power Requirement
120V AC/ 60Hz (USA); 220V-240V AC 50Hz/60Hz (EU)

The latest owner's manuals, quick start guides, and documents.


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HK 3700 is rated 4.6667 out of 5 by 3.
Rated 5 out of 5 by from Very Good Sound I bought the HK 3700 to go with my HK 2.1 speaker system. The sound is excellent. This is audio only and does not support HDMI connection. The HDMI connections are made from the Cable box, DVD Player, etc. to the TV. Audio cables are used to connect the TV to the HK 3700. It's a bit of a headache for those of us who are electronically challenged. But, once the system is set up, all is well with the world.
Date published: 2015-01-05
Rated 5 out of 5 by from A big wrinkle at first, but HK made good. The first unit sent to me died within a week. Harmon Kardons' exchange policy worked as advertised, and they quickly sent me another. The sound is great, the amplifier was able to drive a pair of Kenwood MV-7's (550W speakers) without any decernable frequency loss. While some consider the lack of a balance control a downside, I have always been a stickler for good speaker placement.
Date published: 2014-09-08
Rated 4 out of 5 by from superb sound and design... ... however: HK remote app has an erratic behavior: sometimes the receiver appears, mostly not. (HK3700/network connection through RJ45, DLNA on, Iphone 4s ios9 / wifi network). No app update since feb 2014, this may explain that. The worst in my opinion: power off is working with the app, however NO POWER ON BUTTON (or any electronic entry signal detection on the HK3700). "Le son ancienne ecole rencontre la connectivite actuelle" ? A quoi ca sert la frite, si t'as pas les moules ?
Date published: 2015-10-26
  • 2016-05-26T09:48CST
  • bvseo_cps, prod_bvrr, vn_cps_3.2.1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_3
  • loc_en_US, sid_hk3700, PRD, sort_positive
  • clientName_HarmanKardon

i updated my new HK 3700 to the latest firmware version and it went ok with a display that update was successful after rebootong the system is stacked on home network on the display nothing else works is there anything else i can do to get this to work?

Asked by: goddy
This is an issue that requires some troubleshooting. Please submit a case at Our Customer Support team will gladly assist you.
Answered by: Joe At Customer Service
Date published: 2016-05-04

Please confirm the ability to play wav files on the usb stick. The manual quotes on page 14: "your stereo receiver is compatible with Mp3 and wma media. no other types of media are supported." But elsewhere it says wav is supported.

Asked by: Ivar
When using a USB stick as a source device to play music, the AVR will only read MP3 and WMA files. It will not read WAV files.
Answered by: Joe At Customer Service
Date published: 2016-04-12

how to set a preset fm radio station with remote

Asked by: roland5
As shown on Page 14 of the Owner's Manual... To store a station in one of the 30 presets: 1. Tune to the desired station. 2. Press the MEM button on the remote. 3. Use the Numeric Keys to enter the desired preset number.
Answered by: Joe At Customer Service
Date published: 2016-04-05

Can I connect an equalizer up to this receiver

Asked by: Wheat
This is not possible. Neither the HK3700 or HK3770 have a tape monitor section or a preamp out/main amp in section, so there is no way to use an EQ with these receivers.
Answered by: Joe At Customer Service
Date published: 2016-04-18

Hi. Can I connect I heart radio through my iPhone to this receiver?  What are the unit dimensions?

Asked by: Doug222
If you connect your iPhone directly to the HK3700 using a standard audio cable, from the headphone output on your iPhone to the analog input on the HK3700, you will definitely be able to play I Heart Radio. Dimensions (H x W x D): 4-3/4” x 17-5/16” x 11-13/16”
Answered by: Joe At Customer Service
Date published: 2016-02-27
  • 2016-05-26T09:18CST
  • bvseo_cps, prod_bvqa, vn_cps_3.2.1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_5
  • loc_en_US, sid_hk3700, PRD, sort_recentAnswersFirst
  • clientName_HarmanKardon

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