Item# HK3700AM

HK 3700


Harman Kardon HK 3700 stereo receiver

$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 most out of your signal path with a high resolution, 24-bit, 192 kHz DAC – which helps marry analogue to digital in a stereo receiver providing you instant access between devices.In other words, your receiver has the option to receive everything that’s available to you in analogue or digital form – redefining the term ‘stereo receiver’ while transforming your system into a true entertainment/infotainment centre of your design.

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
<0.5W (standby)
Power per channel
85 watts per channel, two channels driven @ 6/8 ohms, 20Hz – 20kHz, <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)
Height (in)
Height (mm)
Width (in)
Width (mm)
Depth (in)
Depth (mm)

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HK 3700 is rated 4.8 out of 5 by 5.
Rated 5 out of 5 by from Sounds fantastic! Had an older HK receiver, glad I bought Harmon Karden again. Easy hook-up, runs (2) sets of speakers and sounds great!
Date published: 2016-07-22
Rated 5 out of 5 by from great product mine doesn't cut off for no reason, or get hot at -35 db to -45 db. also it has an internal cooling fan that kicks on at higher volumes -10 to +10 db. (max volume) it pushes my jvc 15 (sp-7700) speakers (8 ohms) and a set of bose 701 all (6 ohms) at once. only reason it would cut out is if your ohms rating is wrong for the stereo. (6-8ohms) 2 or 4 ohms is too much resistance and 16 ohms is not enough and will not play as loud. i love this amp i am one to put it to the test playing it full blast for hours, and it holds up very well. yes it will cut out if you crank it up for 5 mins turn it down 30 seconds then turn it up back and forth. fan cuts off when you turn it down and if you turn it up right away it does not give enough cool down time before fan turns back on... so if you gonna do it loud keep it loud or leave it down for about 10 mins between sudden bursts. (thats with all audio systems though) older systems did not have self protect mode from heat. and i cant speak for the older hk model cause i don't have one i got the hk3770. which was an upgrade from my pioneer 1986 yeah sa-1270. electronics are all sensitive!!!! this is a bi amp capable amp for bi amp speakers or you can run 2 sets that are not bi amped
Date published: 2016-02-23
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
  • 2016-09-26T08:01CST
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  • clientName_HarmanKardon

Is this receiver HDCP 2.2 compatible ?

Asked by: Beedog
Unfortunately the HK3700 is not HDCP compatible this doesn’t have an HDMI connection available.
Answered by: Jaycob
Date published: 2016-09-07

Can I play my android phone (music) through the USB port?

Asked by: ginfixer
The USB port on the HK3700 is only for USB thumb drives with MP3 or WMA audio files on it. It will not work with any audio device "iOs or Android". It will not understand that connection and will not work. In order to play music on your device, you will have to connect your headphone output to any one of the inputs on the HK3700. If you do this, be sure to set the volume on your device to MAX. This will give you the best sonic results.
Answered by: Amir at Customer Service
Date published: 2016-08-19

How many HDMI output and inputs 

Asked by: Thick fit
Being that the HK 3700 is a stereo audio receiver, not really used as an audio/video receiver, there is no real reason for HDMI inputs and outputs. As shown on the above Spec Sheet, the HK3700 has five analog audio inputs and one analog-recording output.
Answered by: Joe G at Customer Service
Date published: 2016-07-28

What are the dimensions of the HK3700

Asked by: Lane
Here is the dimension of the AVR: Dimensions (H x W x D): 4-3/4" x 17-5/16" x 11-13/16" (121mm x 440mm x 300mm)
Answered by: Amir at Customer Service
Date published: 2016-07-24

How dose the USB and head phone jack cover come off the 3700? I have tried everything but prying it off, i don't want to break it.

Asked by: c_swan53
Press in on one side of the cover (I believe it is the left side), and the other side will pop out so you can grab it.
Answered by: Joe G at Customer Service
Date published: 2016-07-18

Can I connect a tape deck in-and-out, a CD player, a DVD player-recorder, TV sound, and a phono turntable? My ancient HK 3480 supports all these. 

Asked by: crush
Yes, the HK 3700 is designed to process audio input signals and playback the audio. These signals originate in what are known as source devices including your DVD player, CD player, DVR (digital video recorder) or other recorder, turntable, tape deck, game console, cable or satellite television box, or MP3 player. Although the tuner is built into the HK 3700/3770, it also counts as a source, even though no external connections are needed, other than the FM and AM antennas.
Answered by: Joe G at Customer Service
Date published: 2016-07-12

Hello, would it be possible for HK through a software update enable the hk3700 to read FLAC files?

Asked by: manicospic
At the moment, no future plans about this are known.
Answered by: Joe G at Customer Service
Date published: 2016-07-05

What is the 4 ohm rating? I would like to connect the rcvr to a pair of Polk 8SDIs on my deck Thanks

Asked by: Ol Ken
The wattage rating is the same at 4, 6 and 8 ohms, 85 watts of RMS power. This should be more than enough to drive your Polk speakers nicely, as long as your listening taste does not require more than 85 watts of power.
Answered by: Joe At Customer Service
Date published: 2016-06-08
  • 2016-09-26T08:13CST
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  • cp_1, bvpage1
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