HK 3770

HK 3770

Harman Kardon HK 3770 stereo receiver

Getting started with your HK 3770

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Product Specifications

Bluetooth
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)
Height (in)
4-3/4
Height (mm)
121
Width (in)
17-5/16
Width (mm)
440
Depth (in)
11-13/16
Depth (mm)
300
Power Requirement
120V AC/ 60Hz (USA); 220V-240V AC 50Hz/60Hz (EU)

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.

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.

FAQs & How-Tos

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  • Please refer to the owner's manual for AVR 151 or 151S. The procedure is explained there. The remote control contains a number of pre-programmed command sets that can be activated to control TV sets, disc players and other devices of various brands.
  • 1. Place the 3770 in Bluetooth input mode with the BT button on the front panel or the remote. 2. Do a BT search on the phone, until you find HK3770. Then pair with it. 3. Now you can select the HK3770 as audio source on your phone, depending on the phone. On some phones, you can simply begin to play music after performing the pairing, and the HK3770 will play, if it is in Bluetooth input mode, shown on the front panel display. 4. You can control play/pause etc. from either your phone or from the HK3770 remote control. If you want to use the HK3770 remote, you must first press the STEREO Button on the remote control in order to activate the correct remote codes. Now a press on the PAUSE Button on the HK3770 remote will pause the music by placing your phone on pause, and you can restart play by pressing the PLAY Button. 5. To pair another source to HK3770, first deactivate BT on the source presently paired to release new pairing.
  • Yes, all functions on the HK remote that are meant to control the CD player will work. However, the ON/OFF function is not possible, but if CD is selected as source on the HK remote, pressing the PLAY button will switch the HD 3700 ON.
  • There are five possible reasons for the receiver shutting down. 1. There is a problem internally with the receiver. 2. There is a problem with one or more of your speakers. 3. There is a problem with one or more of your speaker wires. 4. There is a problem with the speaker wiring done on your system. 5. The unit is overheating. No ventilation. First, check the wiring at every speaker terminal at the back of your receiver and at the back of your speakers. A single strand of speaker wire crossing from one terminal to another would be enough to cause the amp to shut down or go into PROTECT. If you do not find any problems with any of the wiring, you should disconnect all speakers from your receiver. If the receiver continues to go into PROTECT, the problem is in the receiver. Please submit a case on the Contact Us page. They will be able to assist you. However, if it turns on, the problem is elsewhere. Begin reconnecting one speaker at a time. Eventually you will connect a speaker that will cause the receiver to shut down. At this point you have found your culprit. On the other hand, it may just be overheating. You must have at least 2 - 3 inches of space between the top of the unit and any shelf or component above the unit. The unit should not be inside a sealed compartment when being used. The unit must be able to breath. There are very powerful amps in these receivers. If they run too hot, they will shut down. An external fan can help this.

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