AVR 3700


Top Rated Wireless AV Receiver with Airplay & WiFi

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All of your entertainment sources in spectacular sound.

Improve the sound and video from every one of your audio or video devices to a world of glorious, enveloping surround sound and video, up to the latest 4K technology. Even if you already have surround-sound speakers, the Harman Kardon® AVR 3700 audio/video receiver’s 7.2-channel audio system will add the dimension of front height to your environment, along with dual subwoofers. The receiver’s Dolby® and DTS® technology will place every musical note and sound effect where it should be while the new lightweight, eco-friendly, digital power supply supports 125-watts-per-channel. And the receiver can handle virtually any medium or sound source. Eight HDMI® inputs, including one on the front panel, ensure connectivity to all your Blu-ray™ or DVD media, HDTV programs and video-game sources, while analog and digital audio input jacks connect you to your familiar legacy components. Built-in Wi-Fi® and AirPlay connectivity keep you cord-free while allowing you to play every song on your computer, tablet, mobile phone and MP3 device. An intuitive, high-definition graphical menu system, remote control, available mobile app and EzSet/EQ™ calibration make setup and operation seem almost too easy for a device this advanced. Your home is a place of pride, beauty and comfort. Bring it to life with sound that is beyond inspiring.

Item# AVR 3700

General Specifications

Transient intermodulation distortion (TIM): Unmeasurable
Multichannel Power (all channels driven) 125 watts/ch, 20Hz – 20kHz, less than 0.07% THD,two channels driven @ 8 ohms, 6-ohm certified
Power Consumption (full power/idle) 120W idle; 1405W maximum (7 channels driven)

Audio Specifications

High Instantaneous Current Capability ±45 amps
Stereo Power 125 watts/ch, 20Hz – 20kHz,less than 0.07% THD, both channels driven @ 8 ohms, 6-ohm certified
Stereo Separation @ 1kHz (dB) 40dB @ 1kHz
Bandwidth @ 1W (+0dB/–3dB) 10Hz – 130kHz
Input Sensitivity/Impedence 200mV/47k ohms
Usable Sensitivity (IHF) 1.3?V/13.2dBf
Output Level/Impedence (ohm) 1Vp-p/75 ohms
Signal-to-Noise Ratio (dB) 45dB
Input Level/Impedence (ohm) 1Vp-p/75 ohms
Frequency Range (MHz) 87.5MHz–108.0MHz
Selectivity (±10kHz): 30dB
Signal-to-Noise Ratio (Mono/Stereo dB) 70dB/68dB
Usable Sensitivity (Loop) 500?V
Distortion (Mono/Stereo) 0.2%/0.3%
Surround system adjacent-channel separation: Dolby Pro Logic® I/II
Signal-to-noise Ratio (IHF-A) (dB) 100dB
Distortion (1kHz, 50% mod) 50%, mod 0.8%
Selectivity (±400kHz): 70dB
Frequency Range (kHz) 520kHz – 1720kHz

System Specifications

Power Requirement AC 120V/60Hz


Width (in) 17-5/16" inches
Weight(kg) 8kg
Depth (in) 6-1/2" x 15" inches
Depth (mm) 382mm
Height (in) 6-1/2" inches
Weight (lb) 17.6 lb
Width (mm) 440 mm
Height (mm) 165mm

Video Specifications

Video Frequency Response (Component Video) 10Hz – 8MHz (–3dB)
Image Rejection (dB) 80dB
Television Format NTSC
IF Rejection (dB) 90dB
Click here for a complete list of all specs for this product

Spec Sheet (EN)

English 1 MB
  • 1 AVR 3700 audio/video receiver
  • 1 main-system remote control with batteries
  • 1 Zone II remote control with batteries
  • 1 AM loop antenna
  • 1 FM antenna
  • 1 EzSet/EQ microphone
  • Quick-start guide

2 Year Electronic

Products purchased online or from an authorized local retailer and under warranty may qualify for an exchange with a valid receipt.

Purchases made from an unauthorized dealer will not be eligible for exchange.

Harman Kardon does not service warranty claims for 3rd party products sold on the site.
You will need to need to reach out the manufacturer directly.

Call us: 1.800.422.8027

  • Sales and pre-sale assistance
  • Technical help
  • Parts and accessories
AVR 3700 is rated 3.6 out of 5 by 16.
Rated 5 out of 5 by from Bang for buck could not have found better receiver Bang for buck best sound quality most features connect availability overall very very satisfied features found on much more expensive receivers
Date published: 2017-03-27
Rated 5 out of 5 by from Excellent product great value! ( refurbished unit) Excellent product great value! ( refurbished unit ). Keep up the great work Harman Kardon!
Date published: 2017-03-01
Rated 5 out of 5 by from Power and great sound Sound quality and power is there when needed. Features galore and easy to use.
Date published: 2016-10-20
Rated 5 out of 5 by from There is no better for the money!! We just love it, what a beautiful sound, and so easy to set up and use.
Date published: 2016-07-28
Rated 5 out of 5 by from Superbly Powerful I purchased this about 3 months ago as a replacement for an AVR 8000. I too was concerned as to wether the newly designed amplifier in the AVR 3700 was still able to produce the same seamless power. It does. This receiver sounds just as beautiful with your favorite film as well as your favorite track. I cannot say enough good things. The on screen user interface is extremely intuitive and easy to use.
Date published: 2015-05-03
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Hi I have a HK AVR370/3700 I have a Pana TH EX780 75" 4K TV and UBT1GL-K BluRay recorder. The Receiver will not pass through HDMI 2.0a HDR capabilities as it is only 1.4. Can you suggest best way to connect everything up?  I have a HDFury AVR Key also.

Asked by: PhilG
Thank you for your inquiry. Since the AVR can only handle HDMI 1.4, the best way to set this up is to connect your 4K Blueray recorder to the TV so it would display the 4K content and connect the AVR to the TV so it will only receive the audio and play it without issues.
Answered by: Mario at Customer Service
Date published: 2018-06-04

When connecting to pre-out terminals to separate amplifier, does this disconnect the avr's power amps, do they shut off or are they still active?

Asked by: connerdude
In your scenario, the internal amp stays active. If you have no need for the internal amp, simply don't connect any speakers to the speaker terminals. This will make them inactive as there will be no load on them, so they would not produce any wattage.
Answered by: Steve S
Date published: 2018-02-08

How can i change the default "TV" souce on the avr 3700? It is causing a glitch with my harmony remote and i would like to delete the option of "tv" if possible

Asked by: Elosh
We would like to work with you directly to help you with your issue. Please submit a case request at https://www.harmankardon.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Mario at Customer Service
Date published: 2018-01-28

Is this compatible with Harman kardon HKTS 16? I will be using just the 5.1 setup. Can this AVR be configured to work just with 5.1 sound system?

Asked by: Music Lover 4
Yes, the HKTS 16 would work well with the AVR 3700 as the 5.1 speaker system.
Answered by: Steve S
Date published: 2018-01-11

Please I have hk avr 370 which is almost 2 yrs. The problem is that, can be powered on but cannot be controlled any further because it freezes.  Even though it displays when powered, the front panel keys doesn't respond to any selection. Pls any solution?

Asked by: Ato Kwamena
We would like to work with you directly for this. I see that you are in Ghana. Please submit a case at customer.support@harman.com and the Customer Service team will be more than happy to further assist you.
Answered by: Steve S
Date published: 2017-12-04

Hello, Does the 3700 have pass thru capabilities while unit is in standby / off mode? Meaning, can we watch TV without the unit being powered on? Thank you!

Asked by: kamaaina1
Unfortunately for HDMI pass thru signal will not work, on the other hand if you will be using Optical connection from the TV going to the receiver. You can turn off or put the AVR on standby and set the TV speakers on to watch TV without the System.
Answered by: Bryan at Customer Service
Date published: 2017-10-17

If I have 2 HDMI sources can I drive 7.1 audio from source 1 AND pass through source 2 HDMI at the same time?   Also, can I have source 1 (or 2)  go out BOTH HDMI outs?

Asked by: DaveS
No. There is no way to output two different digital sources at the same time. This is only possible to the extent of using the Zone 2, but the Zone 2 is only limited to play analog sources.
Answered by: Joe G at Customer Service
Date published: 2018-01-08

Whats the best amp you recommend for the HKTS 20 that has bluetooth, wifi, optical and HDMI?

Asked by: JorgeRBQ
The AVR 3700 can be connected to the home network to play through DLNA/Airplay but does not have Bluetooth. The AVR 1610S would be your best bet, this receiver can provide you 85W per channel on a 5.1 system, ability to connect to a home network that will allow you to access vTuner Internet Radio and DLNA to stream audio from compatible devices. The AVR 1610S does have Bluetooth in which you can directly connect your Bluetooth enabled source devices. This model does have multiple HDMI and Optical ports that you can use depending on your source or preference.
Answered by: Ren at Customer Service
Date published: 2017-10-17
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