HK 3770

Item# HK3770AM
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$449.95449.95 each

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Additional Information
The high-performance Harman Kardon HK 3770 stereo receiver delivers everything you need to set up a classic home audio system with modern connectivity for your analog and digital devices. It delivers 240 watts of ultra-low distortion power and a built-in, 192 kHz/24-bit DAC to provide you with a powerful core essential to creating any serious audio system. The HK 3770 also offers Bluetooth®, DLNA and USB connectivity – so all your old and new devices can be synched to all that powerful sound.
At a Glance:
  • Cutting-edge connectivity options, including Bluetooth® for high quality audio streaming from a broad range of devices.
  • A high resolution DAC, featuring a 24-bit/192 kHz sampling rate.
  • Striking Harman Kardon design leverages quality materials in a 2-channel, 240-watt stereo receiver with ultra-low distortion.
  • The Harman Kardon Remote app provides control through iOS and Android platforms as part of the Harman Kardon ecosystem.
  • Complete Connectivity
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
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.
Product Features:
  • Striking Harman Kardon design leverages quality materials in a 2-channel, 240-watt stereo receiver with ultra-low distortion.
    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.
  • A high resolution DAC, featuring a 24-bit/192 kHz sampling rate.
    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.
  • Complete Connectivity
    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.
  • Cutting-edge connectivity options, including Bluetooth® for high quality audio streaming from a broad range of devices.
    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 provides control through iOS and Android platforms as part of the Harman Kardon ecosystem.
    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.
Manuals & Downloads:
Device Compatibility:
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)
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)
Height (mm)
Width (in)
Width (mm)
Depth (in)
Depth (mm)
HK 3770 is rated 4.5 out of 5 by 14.
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 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 2 out of 5 by from the HK 3770 runs hotter than HK 3490 i have had both HK 3770 (120watt per channel) and HK 3490 (120watt per channel) the HK 3770 runs hotter than HK 3490 at -45dB , -40dB and -35dB volume level (at same volume) ( this will make it LESS Durable ) ----------------------------------------------------------- ( HK 3770 ) more Heat = LESS Durable also the HK 3770 uses to much remote control i miss some of the source buttons on the HK 3770 (on the front) , like the HK 3490 had ---------------------------------------------------------- HK 3770 and HK 3490 sound the same on analog audio inputs , but sound Different on digital audio inputs
Date published: 2015-02-20
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 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 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 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 Powerful and clean stereo receiver I have had this receiver for a couple of weeks now and it has proven to be a clean and powerful receiver. I was initially surprised at the light weight of the unit however it must utilize newer technology as the weight does not reflect the performance. Connected readily to my four year old Ipod as well as my new IPhone 5. Still exploring other aspects of connectivity as I am interested in high resolution music files. Instructions are sketchy with limited assistance to connectivity or other control or performance capabilities.
Date published: 2014-04-04
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Can I hook up an equalizer like comes with Bose 901 speakers?

Asked by: Tommy22
No. The HK 3770 does not have a Tape Loop or Preamp Out/Main Amp In sections, which is what your Bose 901 speaker system needs in order to function properly.
Answered by: Ren at Customer Service
Date published: 2016-12-10

I plan to buy HKTS16 speakers along with this amplifier (HK3770). I see the rated input for these speakers is 200W RMS, while the output for this receiver is 240W RMS? Do you think this is ok combination of speakers or do you have any other recommendation

Asked by: Ramki
The HKTS 16 is a 5.1 speaker system that can handle up to 120 watts per channel while the HK3770 is a 2.1 stereo receiver which has a power output of 120 watts per channel, so this should work perfectly. The HK 3770, though, is a stereo receiver and will only let you plug in up to two pairs of your satellites and the subwoofer. This will not provide you 5.1 surround sound. We suggest that you use one of our current AVRs, for example, the AVR 1610S; which will allow you to use all the speakers included in the HKTS 16 and enable you to set-up a 5.1 surround system.
Answered by: Memen at Customer Service
Date published: 2016-11-28

Would the&nbsp;HKTS 20 surround system work with this receiver?&nbsp;

Asked by: ft125
The HK 3770 is a stereo-receiver which will only make use of two of the satellites and the subwoofer from the HKTS 20 set. We do not recommend the HK 3770 with the HKTS 20, though. The receiver delivers up to 120W of power while the HKTS 20 speaker can only handle to 80W.
Answered by: Ren at Customer Service
Date published: 2016-11-14

Is there balance control between speakers?

Asked by: PTzanev
We have released a software update on the HK3770 that adds the balance control feature that you can access using the Tone Control button on your remote. Depending on when your unit was manufactured, it may have already had the latest software installed at the factory. To see if your HK 3770 software requires an upgrade, please follow these steps: 1. Press the &ldquo;FM/AM&rdquo; button on the remote to switch ON the stereo receiver. 2. Press the &ldquo;Menu&rdquo; button on the remote. The front display will show: Master menu, Network 3. Press the &ldquo;down&rdquo; navigation button on the remote. The front display show: Master menu, Software upgrade 4. Press the &ldquo;OK&rdquo; navigation button on the remote. The front display show: Upgrade menu, Version: V000.17 5. If the software version shown is &ldquo;V000.17&rdquo;, your stereo receiver has the latest software version already, and no further action is needed. Press the &ldquo;Exit&rdquo; button on the remote two times to cancel and exit the menu. 6. If the display shows any other readout, please proceed to the link provided below and download the software update for your HK 3770. This will include a PDF file with detailed instructions on how to proceed with the update.
Answered by: Ren at Customer Service
Date published: 2017-01-26

Can I use the HKTS200 speakers for this system- also I would like to connect a CD player-can I do that too? What CD player would you recommend

Asked by: pelican
Yes you can use the HKTS 200 2.1 speaker system as the HK3770 is a 2.1 stereo receiver. However, you might want to limit the volume output on the receiver a little bit as the HK3770 has a rated output of 240W RMS and the satellites of the HKTS 200 has a rated input of 200W RMS. With that said, I would highly suggest that you either choose another speaker system to use with the receiver which has a higher rated input(i.e 250W RMS) or a receiver which has a lower rated output(i.e 200W and below). Any CD player would work with the receiver as long as it is compatible with the ports on the receiver(i.e Optical, RCA, Etc...).
Answered by: Amir at Customer Service
Date published: 2016-09-07

Hi, is this amp 4 ohm stable?

Asked by: Ari See
Unlike our AVR&rsquo;s, our HK stereo receivers can handle 4 ohm speakers. How can you tell? If you take a look at the manual, at the rear panel, you will see that you can connect two sets of speakers, both rated at 8 ohms, and page 8 states that you can listen to both sets at the same time. So, if you connect two 8 ohm speakers at the same time, in parallel, the amplifier will see a 4 ohm load.
Answered by: Amir at Customer Service
Date published: 2017-01-26
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