HK 3770


Harman Kardon HK 3770 stereo receiver

£499.99499.99 per system
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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. The HK 3770 also features HARMAN GreenEdge™ technology combines an environmentally friendly design with dramatic energy savings; all while maintaining HARMAN’s premium performance.

Item# HK 3770/230

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
  • 1 Harman Kardon HK 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 NaN out of 5 by 14.
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
Rated 5 out of 5 by from Good affordable high current amplifier! Excellent receiver! The only thing I consider important that need to be said is that you need to get the update from harman pardon european site version V000.17 it comes with V000.16 and it adds Balance controls in the tone control button of the remote controller It is in th download section at then end, unzip the file and you will find a pdf with all the instructions to install this very important upgrade http://eu.harmankardon.com/harman-kardon-product-support-detail-eu/hk-3770.html
Date published: 2015-03-28
Rated 5 out of 5 by from Great Product I am enjoying the Bluetooth feature the most, I can be out by the pool and play all of my music and adjust the vo0lume as needed from my phone. I only have one problem that maybe someone can help with? Where do you find the right IR Remote to plug into the HK3770??
Date published: 2015-03-27
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Hi , I'm using HK 3770. It is really very nice product but I have some question about support for non latin symbols. I cannot use Ukrainian names for folders from USB and network (DLNA). Could you add support for currylic characters?

Asked by: aperey
Unfortunately, the HK 3770 does not have the capacity to install language packs.
Answered by: Memen at Customer Service
Date published: 2017-02-21

Can 3770 connect directly to Spotify (Spotify Connect)?

Asked by: PeterC
HK 3770 is a source dependent and does not have the capability to connect directly to Spotify.
Answered by: Erik at Customer Service
Date published: 2017-02-15

I would like to stream hi quality (FLAC) music files from Tidal. Their website lists HK as compatible. &nbsp;will this work? Can i either stream directly via Ethernet input or via Mac mini to optical in? Control via Tidal plug in to HK remote app on iPad?

Asked by: Craig S
The Tidal Streaming App is currently only compatible with our OMNI Speakers (OMNI 10, OMNI 20 and ADAPT). To do this, in the Harman Kardon Controller app, tap on the main menu icon in the left top of the screen (&equiv;). Choose TIDAL and log on with your TIDAL username and password.
Answered by: Ren at Customer Service
Date published: 2017-02-13


Asked by: Joseph B
The HK3770 can drive up to 120W to a 6/8-ohm load speaker. As long as this 200W RMS speaker of yours has an impedance of 6/8-ohms, then it should work perfectly in tandem with the HK3770. If you are using a 4-ohm speaker, you can still use this with the HK3770 but you can only maximize one of the two pairs of speaker connections available in the HK3770. Do not forget to keep the unit well ventilated, to avoid fatigue, when using 4 ohm speakers.
Answered by: Ren at Customer Service
Date published: 2017-02-13

Is there a large enough difference between this receiver and the HK3700, to warrant purchasing this receiver? Also there are muliple different speaker systems to go with this receiver, of the Hartman Karon set ups, what is the best receiver/speaker combo?

Asked by: Nsteuwe101
The main difference between the HK 3700 and the 3770 is that the latter can accommodate digital inputs (optical, coaxial). While there is no such perfect setup since it is all a matter of preference, there are a couple of speakers that would work well with these stereo-receivers. As of currently, speaker systems available in harmankardon.com are 5.1 systems, you might want to check loudspeakers available at JBL.com which should work well too.
Answered by: Ren at Customer Service
Date published: 2017-01-31

How much does model 3770 weigh?

Asked by: Lyntha
The HK3770 weighs 6kg or 13.2lbs.
Answered by: Ren at Customer Service
Date published: 2017-01-27

Does this model have an USB port that allows the audio to be &quot;routed&quot; out of the device and to another USB type device? Note - this is output from the device.

Asked by: james135
No. The HK 3770 does not have this feature.
Answered by: Ren at Customer Service
Date published: 2017-01-25

On the HK3770 or HK3700: &nbsp;where can I plug in audio from a TV? &nbsp;Most receivers have an aux audio input specified for this. Do I just choose one of the 5 &nbsp;inputs?

Asked by: Ray B
The HK3700 can accommodate audio inputs via analog/RCA connections while the HK3770 allows you to connect a source via RCA, optical or coaxial. You can use any of this inputs (except Phono) to connect your TV and you simply need to make sure that the TV is set to use external speakers and that the HK3700/3770 is on the correct source, depending on which port you&rsquo;ve utilized.
Answered by: Ren at Customer Service
Date published: 2017-01-24
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