Item# HK3770AM

HK 3770


240 watt stereo receiver with network connectivity

$399.95399.95 each $449.95
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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.

Know What's In The Box

  • 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

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The power derived from the HK 3770’s high-current amplifiers provides you with what you need to access the high quality sound available from all your playback sources and electronic devices, delivered to your choice of speakers.

Get the most out of your signal path with a high resolution, 24-bit, 192 kHz DAC – which helps marry analog to digital in a stereo receiver providing you instant access between devices.

Enjoy the merits of traditional analog components without sacrificing the convenience and precision of modern digital media. From capturing the sounds of your vinyl through an analog phono input to marveling at the programming available through your vTuner internet radio access, you get the best of both worlds – complete with all the connectivity and interactivity you demand from your various electronic devices. Network DLNA 1.5 and internet radio open the door on digital access while further interactivity is yours with iOS Direct through USB inputs.

The HK 3770 streams audio from virtually any portable device. Its integrated Bluetooth® technology enables connectivity to almost any tablet, smartphone or laptop.

The Harman Kardon Remote app – available from the iTunes App Store for iOS® devices and the Google™ Play service for compatible Android products – extends the functionality of your system by connecting with your compatible smartphone or tablet to drive the HK 3770 – without needing to pick up the remote. It’s also the perfect tool to organize and play back your music from your mobile device and home network.

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)
Frequency Response(@ 1W)
10Hz – 130kHz (+0dB/–3dB)
Power Consumption
<0.5W (standby)
Power Requirement
120V AC/ 60Hz (USA); 220V-240V AC 50Hz/60Hz (EU)
Height (in)
Height (mm)
Width (in)
Width (mm)
Depth (in)
Depth (mm)

The latest owner's manuals, quick start guides, and documents.


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HK 3770 is rated 4.3636 out of 5 by 11.
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 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
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
Rated 5 out of 5 by from Class A/B amplifier? check! This beast has 40 amps of current to provide to speakers and I tested this with 6 ohm speakers it is 50 % efficient which is typically for a class A/B the previous model it was a wonder of 310 w with 77% efficiency, guess Harman is learning to do proper SMPS, good clean sound in evry in, including the coveted optical coaxial digital inputs for lossless audio, high quality performance
Date published: 2015-02-23
Rated 5 out of 5 by from Loosless audio here we go No cheap construction, easy setup if you know the brand a little, put some hd traccks on your computer and welcome to the next age of good digital music
Date published: 2015-02-02
Rated 5 out of 5 by from Great clean sound. I've had this unit for four months now and it's fantastic! I'm running JBL ES80 floor speakers and an Onkyo 10" subwoofer. I primarily use it running my PS4/PS3 and cable, but also use it for music. The DLNA features are great on this unit as well. I'm not an extreme audiophile, but I do appreciate good quality sound and this setup definitely delivers that and much more (Harmon Low/High sound). The only few things I wish this unit had are: Bass/Treble controls on the unit (currently accessible via remote only), wireless (currently only hardwire connection available), and an easier access to accessing your music via Network (currently it's very tedious to go thru a lot of music with no search feature). All in all, I'm pleased with the unit which I use everyday.
Date published: 2015-01-06
Rated 5 out of 5 by from Beautiful, full-featured stereo receiver I have a set of JBL tower speakers, and I previously had them connected to an Onkyo TX-8255, and they sounded great. Now that I have them connected to the 3770, I honestly think I hear a big enough difference in quality to justify the upgrade — even without the killer features; Bluetooth is definitely a nice touch for sure, and very convenient — I have my music collection playing wirelessly from my phone all the time, and so long as you stay within range, it sounds great. Five auxiliary connection ports for RCA cables as well; I have one cable with a 3.5mm end for connecting to MP3 players or whatever I like, and I’ve one more connected to my TV; three more ports left, and I’m not sure what I’ll ever use ‘em for. I can’t tell you too much about the technicalities of this receiver’s connectivity, but you can read all about that sort of thing on this website, or in the product manual. This stereo receiver packs 120 watts of power into two channels each (240 watts total), at 8 ohms, with .07% total harmonic distortion. This receiver is fantastic. If you don’t believe me, then by all means order one for yourself. Harman Kardon ships for free and charges no tax (at least in Illinois), and offers free 30-day returns and lifetime support. Go for it.
Date published: 2014-05-03
Rated 4 out of 5 by from Solid receiverr Hard to find a good stereo receiver - this a good example - Except the display should be larger and brighter
Date published: 2015-12-19
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I would like to buy another HK 3390 for a friend. I own this model, and am not sure that the HK 3770 is an adequate or similar replacement. Comments, please; holding on order!

Asked by: JMac 1763
The HK3770 has updated features compared to the HK3390, for example the HK3770 has network connectivity which the HK3390 does not have. But both are the same in the aspect of the speaker setup.It would really boil down to what you need in terms of functionality and features.
Answered by: Amir at Customer Service
Date published: 2016-05-25

can this receiver power 3 speakers, one woofer and two surrond sound speakers?

Asked by: Pauly
Technically all the speakers you just mentioned can be connected to this unit and be powered at no problem using the left and right connections, but I believe you are referring to an AVR receiver that has the capability of giving you the best possibility sound of a 5.1 system 2 fronts, 1 center, 2 rears and a subwoofer that will give you a theater sound or digital dolby sounds.
Answered by: Amir at Customer Service
Date published: 2016-05-16

how to play mp3 music from USB pendrive in HK 3770

Asked by: samir shrestha
You can connect your USB Flash drive/external hard drive or Android/iOs devices using the cable that was supplied with your device and select USB as the Input on your HK3770. Just make sure that the audio formats that you are trying to play are the following: WMA, MP3 or WAV.
Answered by: Amir at Customer Service
Date published: 2016-05-13

Can I use a Bose 901 series VI speaker together and its equalizer with the HK 3770?  Thanks

Asked by: Sonny
In the old days the BOSE 901 speakers required a Tape Monitor loop in order to work, but these days with digital inputs, Tape Monitor loops no longer work. So today, a receiver must have a pre out/main in loop in order to work. None of our current receivers have this feature or ability.
Answered by: Joe At Customer Service
Date published: 2016-05-05

I have a pair of JBL Studio 290 speakers with a HK3770 receiver. On the back I have 8 speaker connectors, same on the speakers but bridged with gold plated metal bridge. Can I take the plates off from the speakers and connect 2x2 wires to one speaker? 

Asked by: acqualime
Great, thank you for the prompt answer. Kindly allow me one more, probably foolish question:Is there any difference in sound quality between HK3770 and let's say an AVR171S while both run in 2 channel stereo mode? 
Answered by: acqualime
Date published: 2016-04-08

Can i use this system (HK3770) Bi-amplification or bi-amping speaker’s using the A and B exits. If is yes.   How I connect? Thank you

Asked by: fer123md
There is no benefit to wiring your HK3770 this way. While there are two sets of speaker terminals on the HK3770, there is only a single stereo power amp inside the unit. These two sets of terminals are there for convenience if you wanted to connect a second set of speakers to the receiver. In order to bi-amp you would need two amps. The HK3770 does not provide this.
Answered by: Joe At Customer Service
Date published: 2016-04-09

I have a pair of JBL Studio 530. They are rated at 25-125 watts at 6 ohms. Is this stereo receiver an overkill for my speakers or should I go with AVR 171s? How many watts HK 3770 puts out at 6 ohms? Thanks.

Asked by: Russ
We do not have a published wattage rating at 6 ohms. However, you will have nothing to worry about with these two components, the HK3770 and STUDIO 530. They will work great together, as the wattage ratings are close enough to not be an issue.
Answered by: Joe At Customer Service
Date published: 2016-04-05

Have Klipsch Heresy Speakers rated at 100WPC  and with it Luxman pd 121 Turntable. Need new Receiver and seek help pairing with my speakers. Would also like it to have wifi and bluetooth. I'm confused as to what receiver to use. Thanks in advance.  

Asked by: Howard
The HK3700 can put out up to 85 watts per channel, while the HK3770 can put out up to 120 watts per channel. So, the HK3700 is a better match because your speakers can handle UP TO 100 watts per channel. However, the HK3700 doesn't offer Bluetooth. So you have two options... 1. You can get an HK3700 and a BTA10 Bluetooth dongle in order to end up with all you are looking for. 2. You can get the HK3770, and just be sure not to crank the receiver to full output, as you would end up sending more wattage to the speakers than they can handle.
Answered by: Joe At Customer Service
Date published: 2016-04-04
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Harman/Kardon HK 3770 2-Channel Stereo Receiver with Network Connectivity, FM Tuner, DLNA, Bluetooth & USB
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HK 3770
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