HK 3700


Harman Kardon HK 3700 stereo receiver

$299.95299.95 each $349.95
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High-performance 170 watt stereo receiver with analog & digital capacity and networked connectivity.

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.

Item# HK3700AM

General Specifications

Power Consumption <0.5W (standby)

Audio Specifications

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) 100dB
Frequency Response (@ 1W) 10Hz – 130kHz (+0dB/–3dB)

System Specifications

Power Requirement 120V AC/ 60Hz (USA); 220V-240V AC 50Hz/60Hz (EU)


Height (in) 4-3/4
Height (mm) 121
Width (in) 17-5/16
Width (mm) 440
Depth (in) 11-13/16
Depth (mm) 300
Click here for a complete list of all specs for this product

Spec Sheet (EN)

English 969 KB
  • 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

2 Year Warranty

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.

Call us: 1.800.336.4525

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HK 3700 is rated 4.5 out of 5 by 16.
Rated 5 out of 5 by from HK 3700 This is the third HK3700 and I'm very happy with the clarity and fidelity of the sound
Date published: 2017-09-07
Rated 5 out of 5 by from Perfect I am happy after 2 weeks to use. Sounds are great.
Date published: 2017-07-21
Rated 5 out of 5 by from Nice features and very smooth nice HK sound. Nice features and very smooth nice HK sound. Love hooking it up to my phone via the Blue tooth ( optional ) and listening to it that way.
Date published: 2017-05-22
Rated 5 out of 5 by from Handles many components well I bought this along with 2 Studio 290 speakers and the set is terrific. Only problem is adjusting bass and treble levels.
Date published: 2017-05-15
Rated 5 out of 5 by from Replacement for unit purchased in 1969 I purchased a Harman Kardon amp in early 1969. It lost a channel in late 2016, which prompted this purchase. Excellent unit then and now.
Date published: 2017-04-07
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Hi there, would this receiver work through 4ohm speakers?

Asked by: PV11
Yes, the HK3770 can run 4 ohm speakers but this is ONLY possible if you only use one pair of the speaker terminals being that it has two sets of left and right.
Answered by: Ren at Customer Service
Date published: 2017-09-04

Hi, I have two speakers mounted in the ceiling wall of our house and can this be connected to this receiver? Also would like to know more about ethernet connector and how it works

Asked by: Varun Mehta
We need more information about the speakers in order to effectively answer your question. Please submit a case at www.harmankardon.com/support-contact.html and the Customer Service team will be more than happy to further assist you.
Answered by: Aj at Customer Service
Date published: 2017-07-21

How do I access a specific analog connection, say A5, on my HK3700 using the buttons on the front of the unit or using the remote?

Asked by: Rick S
Press the AUX button and Digital button to assign the audio input to one of the source selections. For example, if your CD is connected to the analog input 5 (A5), press the CD source button, and then press the AUX button to assign ANA 5 input to the CD source.
Answered by: Drin at Customer Service
Date published: 2017-07-18

Which speaker is the best with it?

Asked by: Shab
The HK3700 can put out up to 85 watts per channel. So, the HK3700 is a better match with speakers that can handle 85 watts or higher per channel.
Answered by: Joe G at Customer Service
Date published: 2017-06-25

How do I adjust bass, treble, and balance on the hk3700?

Asked by: yolohoog
Press the Tone Control button to access the bass and treble controls. Use the OK button to select an adjustment and use the Up/Down buttons to change the settings.
Answered by: Joe G at Customer Service
Date published: 2017-07-04

how do you hook up a turntable? on a avr 120 with only video jacks

Asked by: randy58
Unfortunately, the AVR 120 does not have phono inputs needed to connect turn tables directly. Unless your unit has a built-in pre-amp, you need to purchase an external phono pre-amp in order for your turn table to work with the AVR 120. If you need further assistance, please submit a case at www.harmankardon.com/contactus and the Customer Service team will be more than happy to further assist you.
Answered by: Ron at Customer Service
Date published: 2017-07-04

Where can I get more information on how to use the remote, some problems are not being able to turn the HK 3700 on or off, the remote will not let me skip a song on Ipod setting, nor can I adjust tones. Am I missing something here ? Further instructions ?

Asked by: Rickplayer
Thanks for your inquiry on the HK 3700. Instruction on how to use the remote control can be found on pages 13-15 of the owner's manual, which can be download at which could be downloaded from http://www.harmanaudio.com/harman-kardon/HK+3700.html. If you need further assistance please submit a case at www.harmankardon.com/contactus and Customer Service will happily assist you.
Answered by: Ron at Customer Service
Date published: 2017-09-15

1. Is this receiver able to play from my spotify library? If yes, how? Through my phone/tablet, or stream directly from Spotify server? 2. What do I loose with no optical inputs just analog only? DAC will solve, but what &quot;extra&quot; do I loose?

Asked by: grindlock
So reciever can not contatct to Spotify, but I should plug with eg. my phone with analog cable?
Answered by: grindlock
Date published: 2017-03-30
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