HK 3770


Harman Kardon HK 3770 stereo receiver

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# 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

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 4.4 out of 5 by 31.
Rated 5 out of 5 by from Old school analog - digital compatability Back in the day I owned an HK 640. Outstanding warm audio, square wave design. Now I have it again with the 240 watt HK3770, plus the Harman Volume feature for DVD audio in stereo. Thx.
Date published: 2019-05-11
Rated 5 out of 5 by from Bluetooth I recently received my Harman Kardon receiver and it’s overwhelming how the quality of my music was lacking in my other speakers, which shall not Ben names. One of my best home entertainment purchases to date.
Date published: 2019-05-02
Rated 5 out of 5 by from Great amp! I bought one a yr or so ago for the living room, connected to a pair of Cornwall’s. Sounds awesome. Had to have another for my workshop. Very nice sounding receiver and plenty of power!
Date published: 2018-12-25
Rated 5 out of 5 by from My second Harmon Kardon reciever I used my first HK until it was used up. This one has more power, more headroom and more features. I love it.
Date published: 2018-12-20
Rated 5 out of 5 by from HK 3770 is the Bomb! Just set this up, super easy; remote is a little hard to figure at first but is solid. The sound this thing reproduces is clean, rich, good lows, solid mids. My setup is 2x JBL Studio L890 towers and JBL Studio Sub 250P. It can push some some serious power and the Harman Sound button is a nice feature.
Date published: 2018-11-25
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What are the Watts levels of Subwoofers can connect with this ?

Asked by: Kavi
Hi there Kavi, since our HK 3770 receiver does not have a subwoofer output, there is no subwoofer that can be connected to it. You may only be able to connect loudspeakers to this receiver.
Answered by: Zoe at Customer Service
Date published: 2019-08-13

If i have four speakers connected to this (two in speaker 1 and two in speaker 2) how many watts are going to each speaker? 120watts or less?

Asked by: ToddAF
Hi Todd, this will really depend as well on the impedance rating of each speaker you're connecting to on our Harman Kardon HK 3770 receiver so let's dive into it a little more so we can help you. Submit a case request and we'll be very happy to help you: https://www.harmankardon.com/support-knowledgebase.html
Answered by: Zoe at Customer Service
Date published: 2019-07-27

i have series 6 bose 901 speakers and equalizer,can i use them on the hk 3770? Hope so cause i just ordered one!

Asked by: Hoek
Hi there, thanks for asking. We would need to get more details about your equalizer in order for us to know if it will work with the HK3770. Please submit a case here: https://www.harmankardon.com/support-contact.html&nbsp;
Answered by: Jemson G
Date published: 2019-06-11

Bought my 3770 Receiver some times last year and connected to the JBL L-Series Speakers . However only the two front pair L890 Tower speakers &amp; Subwoofer sounds while the rest pairs L830, L810, LC2 won't . What could be the problem ?

Asked by: Muliwa
It could some settings that needs to be tweaked on your HK 3770. We would like to work with you directly to help you. Please submit a case request at https://www.harmankardon.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Rhae
Date published: 2019-02-05

good morning, I have some old Jbl D123 speakers with 075 with an impedance of 16 ohms, the HK3370 can support these speakers?

Asked by: RICARDO O
We would like to work with you directly to help you with your issue. Please submit a case request at https://www.jbl.com/support-contact.html and the Customer Service Team will be more than happy to assist you.
Answered by: Mario at Customer Service
Date published: 2019-01-12

Are there tone controls?

Asked by: johnnynitro
Yes, the HK 3770 has Tone Control. You can make adjustments to the bass and treble control.
Answered by: Eugene B
Date published: 2019-01-12

Hello, I have the HKTS 9/16 home theater system. I am interested in the 3770 receiver. My tv is mounted and Im trying to continue the wireless look for my home. Can this receiver connect to my tv wirelessly?

Asked by: saran
Yes, if your TV has a Bluetooth transmitter since the HK 3770 has a built-in Bluetooth receiver. But with this set-up, you sources (like cablebox, DVD player, etc) needs to be connected to the TV instead. The you just select Bluetooth as the source for audio on the receiver. Also, you may experience latency or audio/video sync issues when watching TV with the Bluetooth connection. I would suggest using a wired connection when connecting to avoid the said issues.
Answered by: Rhae C
Date published: 2018-12-31

can i used 6 omhs wharfedale 200watts on h3770 base on specs 6/8omhs

Asked by: jojop
Yes, you can definitely use a Wharfdale with our receiver. Our HK 3770 can support both 6 and 8-ohm load.
Answered by: Rhae C
Date published: 2018-12-16
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