HK 3770


Harman Kardon HK 3770 stereo receiver

$449.95449.95 each
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High-performance 240 watt stereo receiver with analog & digital capacity and networked connectivity.

Harman Kardon’s reputation for excellence in sound quality and distortion-free power has moved forward to combine classic analog sound with modern digital connectivity. Discover 240 watts of power in a stereo receiver dedicated to complete connectivity for all your devices. The high-performance Harman Kardon HK 3770 stereo receiver delivers everything you need to drive any home audio system. With analog and digital connectivity, it features high 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. Bluetooth® is included for high quality audio streaming from a broad range of devices. And, with built-in AM/FM radio and phono inputs, the HK 3770 eloquently bridges classic and modern audio – making it a truly powerful centerpiece for your home audio system.

Item# HK3770AM

Device Compatibility

Bluetooth Yes

General Specifications

Stereo Power 120 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)
Power Consumption <0.5W (standby)

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 965 KB
  • 1 Harman Kardon BDS 3770 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
HK 3770 is rated 4.5 out of 5 by 16.
Rated 5 out of 5 by from AWESOME Bought this receiver a few weeks ago & installed it today. Wow, it sounds awesome & looks sweet! Mainly purchased to use with my Dual CS 5000 Turntable, Shure M97xE Cartridge & 2 Klipsch R-24F Speakers. Crisp, clear, warm & powerful sound, pushing these speakers excellently. Super happy with this purchase & definitely recommend.
Date published: 2017-03-31
Rated 5 out of 5 by from nice sound I bought this for the phono plug and it was worth it. Nice sound. I'm running JBL L100's & L36's out of the back & playing both together. Easier to use than the audio/video series of stereos that they sell (I have them too). I like this Harman better than any of the others that I own (have a few).
Date published: 2017-02-20
Rated 5 out of 5 by from What an Amp! Don't know a lot of tech details... purchased HK3770 last week... sounds very good with my old technics speakers sb a36...
Date published: 2016-12-18
Rated 5 out of 5 by from Wow I replaced my 20 yr. Old H.K.avr 520 with the 3770. I don't watch movies I listen to music, and i up dated me cerwin vagas to the new cerwin vega sl 12 .I challenge you to find a cleaner better sounding system for $ 1,000.00
Date published: 2016-04-30
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
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Hello! I wanted to ask if there's any fresh firmware for this unit...mine dates back to 2014. Thanks

Asked by: Ecolodger
The available software for HK 3770 is Software Version V000.17 - Released July 2014, you can see this information on our brand website www.harmankardon.com/software.html. If your receiver has the same software version then we suggest that you don't need to do a firmware upgrade.
Answered by: Mel at Customer Service
Date published: 2017-05-22

Can I upgrade the power cord with an after-market 15A IEC cord ?

Asked by: Brian D
The HK 3770 power cord is non-removable. If you are planning on extending the length of the cord, you can do with an external cable.
Answered by: Miko at Customer Service
Date published: 2017-05-15

Hi, can I use Q acoustics 3050 speakers 100 watts 6 ohm with HK 3770? Is there anything to worry about?

Asked by: Plamen
The HK3770 can drive up to 120W to a 6/8-ohm load speaker. So as long as your Q acoustics 3050 speakers are rated at 6/8 ohm and can handle up to 120W of RMS power, they will work great with the HK3770.
Answered by: Joe G at Customer Service
Date published: 2017-05-12

Will this unit allow me to manually input my own customs url stream addresses and save them? (and if yes, is there a maximum #) I am familiar with VTuner, and their station database does not include many internet radio stations that I currently listen to

Asked by: RalphL
Please follow these steps to add your favorite radio stations on your AVR with vTuner: 1. Please open your web browser and enterwww.Radioharmankardon.com. To register your AVR, you need the MAC address of your AVR (same as vTuner ID). 2. Once you have the MAC address, head over to your browser window. On the website, you will see text field. Enter your MAC address in this text field. Press the -&gt; symbol when you have entered the correct MAC address. 3. After pressing the -&gt; symbol, it will take you to the next step, where you can add radio stations. Now you can search for your favorite radio stations in the text field. When you have found a favorite radio station, and want to add it to the list, please press the blue icon in order to add this particular station to your list. 4. To add stations to your list, you must have an account. Fill out the information in the boxes and click on Register. Your setup is done. You can now add more stations to your list. When entering Radioharmankardon in the future, just enter email address and password. 5.If your current list needs to be edit or modified: Just go to www.radioharman.com , and use the login information you have created in step 4. 6. In case you encounter any issues with your login afterwards, and you required a reset of the password, or other issues, go to www.radioharmankardon.com , and locate the &ldquo;Email Us&rdquo; icon. Click on it. A new window will open, where you can send your issue to vTuner. NOTE: the account is not stored on HARMAN servers, so all contact about your account needs to be directed to vTuner.
Answered by: Joe G at Customer Service
Date published: 2017-04-12

Can I use banana plugs on HK 3770?

Asked by: EOlim
Yes, you can use a banana plug to connect your speaker to the HK 3770.
Answered by: Joe G at Customer Service
Date published: 2017-04-08

Hi, just purchased this. Sounding beautiful &amp; looks amazing! I'm just having trouble with the remote, it doesn't adjust the Harman Volume, give me access to tone control or the menu when pushing the buttons, along with a few other functions. Any ideas?

Asked by: Broshark
It is possible that you have pressed an external source that is why the other remote functions are not working. When you select Cable/Sat, for example, the remote now thinks it&rsquo;s controlling the Cable/Sat box. You must select STEREO or one of the internal sources (Bluetooth, etc.) in order to get back to having the remote control the receiver. You can also check the full instructions on remote operation that is available in the owner&rsquo;s manual.
Answered by: Miko at Customer Service
Date published: 2017-04-04

Hello, is HK 3770 is good for Dynaudio Emit M20 (enough power)? If not, what stereo receiver do you suggest?

Asked by: george71
As long as 120 watts is powerful enough for your listening taste, the HK 3770 has more than enough power to drive your speakers.
Answered by: Miko at Customer Service
Date published: 2017-04-04

Hello i would like to know if the hk3770 is good for the wharfdale diamond 250 speakers and if theres enough power .

Asked by: Wayneazz
Hi, The HK3770 delivers 120W @6ohm power per channel, and from what I can read, the speakers have a recommended amplifier power of 25-200W @6ohm. So yes, the receiver delivers enough power for the recommended power of your speakers. If you require more information, please contact us on customer.support@harman.com
Answered by: Kay Harman
Date published: 2017-03-31
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