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Item# CINEMA SB400

Cinema SB400


120-watt, wireless Cinema soundbar and subwoofer

$499.95499.95 per system
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The difference between merely watching a movie at home and being fully immersed in a cinema experience is JBL® sound. The JBL Cinema SB400 includes a two-channel soundbar for high-definition audio that complements your high-def video. It features four 2-1/4-inch (57-millimeter) cone woofers, two 1-inch (25-millimeter) dome tweeters, an amplifier that offers up to 120 watts of power, three HDMI® inputs (for multiple sources such as your cable box, DVD player, videogame console and computer), integrated Bluetooth® technology (ideal for streaming music from digital devices), dual-position equalization (which optimizes sound based on the soundbar’s location) and HARMAN Display Surround technology (which creates a surround-sound experience from only two channels). And for people who want more rumble and realism, the SB400 includes a separate, 200-watt, 8-inch (400-millimeter) wireless subwoofer with bass-boost functionality, which lets you tailor low-frequency response. Designed to complement flat-panel TVs that are 46 inches (1.168 meters) and larger, the glossy Cinema SB400 is ready to work with any type of A/V format and deliver the great JBL sound that you’ve come to love – and look great doing so.

What's in the box?

  • 1 Cinema SB400 soundbar
  • 1 8" (200mm) wireless subwoofer
  • 1 IR remote control
  • 1 power cable
  • 1 optical audio cable
  • 1 analog audio cable
  • 1 wall-mounting bracket
  • 1 warranty card
  • Quick-start guide

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The Cinema SB400 incorporates amplifiers, controls and left and right woofers and tweeters into a single soundbar. Its built-in amplification simplifies system connections and operation, and offers up to 120 watts of power.

Nothing draws you into the action like huge bass. The Cinema SG400’s 8-inch (200-millimeter), low-frequency transducer and built-in 200-watt amplifier deliver all of your entertainment’s impact, emotion and excitement. And because the system is wireless, it puts no unsightly cables between soundbar and subwoofer.

Movies and TV shows aren’t the only things that sound better with a JBL soundbar. The Cinema SB400 wirelessly streams music from smartphones and tablets, delivering room-filling, full-range sound reproduction with exceptional bass.

With three HDMI inputs, the Cinema SB400 provides convenient connection for multiple HDMI source components. It also includes one HDMI output with Audio Return Channel (ARC), which sends the TV sound back to the soundbar. This setup simplifies switching and makes the system easier to use.

Drawing from HARMAN expertise in movie theater audio, the Cinema SB400 lets you add cinema sound without adding multiple speakers. Employing proprietary HARMAN Display Surround technology, it creates a virtual surround-sound experience while preserving the original audio mix in its timbre and special balance.

The Cinema SB400 decodes film soundtracks in their native format, which eliminates conversion stages that reduce sound quality. This arrangement helps the soundbar provide a superb surround-sound experience for multiple listeners.

The Cinema SB400 easily connects to any TV and even provides all of the cables that you’ll need. Easy to install, the soundbar requires virtually no setup. Just connect and play.

The Cinema SB400 features enough inputs to connect a TV and a disc player, satellite tuner or cable tuner to the system. It connects directly to any television and increases convenience – no plugging and unplugging required.

The Cinema SB400 comes with a credit card-sized remote control that can “learn” the IR (infrared) volume-control code of your existing TV remote control. You can literally control the soundbar and TV volume with the same remote.

You can place the Cinema SB400 on a shelf or tabletop, or wall-mount it with the included hardware. A dual-position equalization feature optimizes the soundbar’s performance for any location. So you can position it where you choose without compromising sound quality.

Subwoofer Maximum Recommended Amplifier Power
100 watts
Speaker Maximum Recommended Amplifier Power
60 watts peak per channel
System Frequency Response
38Hz – 20kHz (–6dB)
Subwoofer Power Requirement
100V – 240V, 50/60Hz, 100W
Subwoofer Low-Frequncy Transducer
One 8" down-firing cone
Speaker High-Frequency Transducer
One 1" (25mm) dome per channel
Speaker Midrange Transducer
Two 2-1/4" (57mm) cones per channel
Speaker Height
3-3/4" (95mm)
Speaker Width
43-5/16" (1100mm)
Speaker Depth
2-1/2" (64mm)
Speaker Weight
7.3 lb (3.3kg)
Subwoofer Height
14" (355mm)
Subwoofer Width
13" (329mm)
Subwoofer Depth
12-5/8" (320mm)
Subwoofer Weight
23.1 lb (10.5kg)

1 Year electronics and 5 Years lousdpeaker

Products purchased online or from an authorized local retailer and under warranty may qualify for an exchange with a valid receipt.

Purchases made from an unauthorized dealer will not be elibible for exchange.

Request an Exchange

Call us: 1.800.336.4525

  • Sales and pre-sale assistance
  • Technical help
  • Parts and accessories
Cinema SB400 is rated 2.9649 out of 5 by 57.
Rated 5 out of 5 by from Technologically experienced and audiophile I've had this for about 6 months now and absolutely love it. Run this with HDMI out of my computer to a samsung 4k and it sounds incredible. Hits lows much better than I was expecting and the bass boost does not distort like others do.
Date published: 2016-04-16
Rated 5 out of 5 by from AMAZING!!!!! I've now had this sound bar for 6 months and I love it. Super easy set up and the sound quality is amazing. I have the ability to feel like I'm in a movie theater when I turn subwoofer on or just Bluetooth and listen to music while I clean. It really is a great system I've had no issues with anything.
Date published: 2016-03-31
Rated 5 out of 5 by from Love it ! Great sound and bass. At first I was skeptical but once I hooked it up to my rand started streaming music I was sold .
Date published: 2016-03-22
Rated 5 out of 5 by from Love it so far I bought it about 3-4 months ago and think it sounds great. I like how I can only use my phone to turn it in with Bluetooth and it starts playing music after a few seconds. The mounting on the back will work, but is a little flimsy.
Date published: 2016-01-17
Rated 5 out of 5 by from No problems with setup and sounds great! I've had it setup for a week or so and live it so far. No problems with setup and I think it sounds great. Would definitely recommend it. The wall mount is a little flimsy though.
Date published: 2015-10-25
Rated 5 out of 5 by from Great Sound Bar Just bought this today and i must say WOW! Sound is amazing and subwoofer is a awesome compliment to the sound bar. it is a little pricey, but if your planning on spending at least $250 you might as well double it and get this because quality is night and day different.
Date published: 2015-06-28
Rated 5 out of 5 by from Jbl. Does it again I have jbl in my car and now have it in my home this is awesome,sounds like I'm at the movies
Date published: 2014-09-01
Rated 5 out of 5 by from Bang for the buck Was thinking to buy Bose Cinimate sound bar. Then I came across JBL SB400 and bought one. Excellent sound for our living room. We listen more 2.1 music then actual movie surround sound, it is just great for that, the sound fills our living room comfortably, we stream music through bluetooth.
Date published: 2014-07-14
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We have a JBL Cinema SB400.  We had a power outage.  The unit is plugged into a power strip and seems to be fine.  But we are not getting sound?  How do we reset the unit?

Asked by: RickB
I have same issue. Less than 6 months old and I did not have a power outage. Mine operates just no sound. Optical and HDMI ARC
Answered by: Mattjud
Date published: 2016-05-21

Is there a way to prevent my tv from turning on whenever I play music via Bluetooth from my phone? Other than disconnecting my HDMI cable to the tv of course. Thank you for your help. Amazing SB otherwise!!

Asked by: Lumoart
In most ARC products, the Soundbar and TV essentially act as one device when both are connected via an ARC HDMI port. The SB400 has an auto on/off feature based on audio signal which can not be disabled. When it sees an audio signal present, the SB turns on, and when it no longer sees an audio signal it turns off. That being said, your TV features auto on/off as well. Please refer to your TV manuals to see if this feature can be disabled.
Answered by: Joe G at Customer Service
Date published: 2016-05-19

Everytime i connect my phone to the unit and play music via Bluetooth it cuts off after ten minutes. Please advise 

Asked by: PieterP
The SB400 has an auto on/off feature based on audio signal which can not be disabled. When it sees an audio signal present, the SB turns on, and when it no longer sees an audio signal it turns off. Try adjusting the volume on your device to match the volume of the Sound Bar(i.e Mobile device volume at 50% Sound Bar Volume should be at 50% as well).
Answered by: Amir at Customer Service
Date published: 2016-05-18

Is there a way to turn off the feature or setting where if there is even 1 second of silence, the soundbar goes into some sort of mute until sound is playing.. it happens a lot when playing games. 

Asked by: Viper20184
The CINEMA SB400 has an auto on/off feature based on audio signal which can not be disabled. When it sees an audio signal present, the SB turns on, and when it no longer sees an audio signal it turns off. If you are using the analog aux line input to connect your TV to your SB, it is possible that you are not sending enough audio to the SB for it to stay on. There are a few ways to handle this, in order of preference. 1. If your TV has a digital audio output, optical cable use this feature, it will give you the best sonic results and will stop this from happening. 2. If it doesn't have a digital output, continue using the analog output, but go into your TV's setup menu and turn off the internal speakers, and set the audio output to FIXED, if possible. 3. If this is not possible, and the TV's audio output is effected by the volume control on the TV, turn the volume on the SB down a bit, and turn the volume on the TV up, to compensate. This will increase the signal being sent to the SB, telling it to stay on.
Answered by: Joe G at Customer Service
Date published: 2016-05-16

Can you use this outdoors?

Asked by: sheena
This product is not designed to be used outdoors. However if you would like to use it outdoors, make sure that the system would be placed where it will never be touched by either rain, snow or direct sunlight.
Answered by: Amir at Customer Service
Date published: 2016-05-06

Experiencing lag on my audio.  Any advise from anyone that is experiencing the same problem?

Asked by: Cryptocounselor
While it is wonderful to have HDMI connections on a soundbar, sometimes this can create issues like a a lag or audio/video sync problems, determined by how long it takes your TV to process the video signal. Here's what happens. You send the audio and video signal to the SB400 via HDMI. The SB400 sends the video out to the TV. But the SB400 is able to process the audio signal a lot faster than the TV is able to process the video, or vice-versa. A very easy way to fix this is to connect your sources directly to your TV, and then run the audio from the TV to the SB400 via ARC or optical digital. This should prevent the lag issue from happening.
Answered by: Hazel at Customer Service
Date published: 2016-05-20

My subwoofer keeps cutting in and out. The blue light also goes off when it cuts out. I've had it for 2 weeks and it just started doing this. I've reset and repaired it and it still does it. Please help. 

Asked by: HeathGarcia
Please unplug both the soundbar and the sub from the wall outlet for roughly 1 minute, and then try doing the reset once more. If this does not solve your, please submit a case at www.jbl.com/contactus. They will gladly help you.
Answered by: Joe At Customer Service
Date published: 2016-04-19

I bought one of these systems and it didn't come with a wall mount bracket. Where can I buy a replacement one?

Asked by: se752
Please submit a request at www.jbl.com/contactus. They will be able to assist you.
Answered by: Joe At Customer Service
Date published: 2016-05-15
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