Cinema SB400


120-watt, wireless Cinema soundbar and subwoofer

$499.95499.95 per system
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Bluetooth­-enabled soundbar with a powerful, 200-watt wireless subwoofer.

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.

Item# CINEMA SB400

Device Compatibility

Bluetooth Yes

General Specifications

Frequency response 38Hz – 20kHz
Enclosure type Ported

Audio Specifications

Subwoofer Maximum Recommended Amplifier Power 100 watts
Speaker Maximum Recommended Amplifier Power 60 watts peak per channel

System Specifications

System Frequency Response 38Hz – 20kHz (–6dB)
Subwoofer Power Requirement 100V – 240V, 50/60Hz, 100W

Subwoofer Specifications

Subwoofer Low-Frequncy Transducer One 8" down-firing cone

Speaker Specifications

Speaker High-Frequency Transducer One 1" (25mm) dome per channel
Speaker Midrange Transducer Two 2-1/4" (57mm) cones per channel


Subwoofer Weight (kg) 10.5
Subwoofer Width (mm) 329
Subwoofer Height (in) 14
Subwoofer Depth (in) 12-5/8
Speaker Width (in) 43-5/16
Subwoofer Depth (mm) 320
Speaker Depth (in) 2-1/2
Speaker Width (mm) 1100
Subwoofer Weight (lb) 23.1
Speaker Height (in) 3-3/4
Speaker Weight (kg) 3.3
Speaker Weight (lb) 7.3
Subwoofer Height (mm) 355
Speaker Depth (mm) 64
Speaker Height (mm) 95
Subwoofer Width (in) 13
Click here for a complete list of all specs for this product

Spec Sheet (EN)

English 900 KB
  • 1 Cinema SB400 soundbar
  • 1 8" (200mm) wireless subwoofer
  • 1 IR remote control
  • 1 power cable
  • 1 optical audio cable
  • 1 wall-mounting bracket
  • 1 warranty card
  • Quick-start guide

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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 eligible for exchange.

Call us: 1.800.336.4525

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Cinema SB400 is rated 3.1 out of 5 by 99.
Rated 5 out of 5 by from Amazing bass Amazing quality!!! Great sound amazing bass great value
Date published: 2017-05-11
Rated 5 out of 5 by from Great sound and everything !! I bought this on Black Friday and this speakers is so good but the only bad thing with jbl is that they don't have surrounding speakers I wish they did unless I don't know.
Date published: 2017-04-28
Rated 5 out of 5 by from Awsome Sound Bar and Subwoofer! I bought this about 6 months ago and compared to my old sorround sound system that i had its so much cleaner and the bass is ridiculous and being bluetooth is so awsome and not having wires run through my walls and having to make holes. Its so easy to setup to your tv or even if your just using it in the garage to play misic!
Date published: 2017-04-26
Rated 5 out of 5 by from Awesome Sound I am enjoying putting this system on when I watch movies or play games. My daughter is able to enjoy it as well as it doesn't blast her out of the room but it makes her feel like she's at the theater
Date published: 2017-04-09
Rated 5 out of 5 by from it's simply awesome My house is small and my surround system was finely giving me trouble after all these years so I needed to do something. I decided to give this soundbar and sub a try despite some not so great reviews. I started off having some issues with my wifi once I hooked everything up and realized I was running too may things on a 2.4 frequency but since I have a duel frequency router, I moved everything I could to the 5 and no more issues. The sound is crisp and clear and I have no problems with the connection to the sub but believe I would have if I kept everything on 2.4. I'm thrilled that it has Bluetooth and so many HDMI connections so I have more options. JBL has never let me down in quality and value and this soundbar is no exception. Over all, just a few adjustments for me and my world is full of ear pleasing sound and worth every bit of the effort and purchase price.
Date published: 2017-02-23
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What HDMI cable do I need to connect my SB400 to my Samsung 4k UHD tv through ARC

Asked by: Comeandjoinus
Hi, Thank you for your question. Use high speed HDMI cable for best performance. Please contact us if you have more information at customer.service@harman.com
Answered by: Danny HARMAN
Date published: 2017-06-12

I have the cinema SB400. It interferes with my wireless signal. They are not located near each other. I have changed channels on the router with no change. when the system is unplugged my wifi is great, when its plugged in its bad. solutions?

Asked by: Klouder
Sorry to hear of this problem you are having. Below are some advice and options to assist you in securing a better connection. - Switch to 5 GHz network, as Bluetooth protocol does not operate at this frequency. Therefore you will not have any issues with BT devices interrupting. - Enable "Interference Mitigation" if your router has this option/feature. Typically this is under advanced Wireless settings. - Move your router to a different location for your important connected devices. - Reset your router. After a reset, the router will scan the area for most used channels, and select one that isn't busy (same as manual switching above). The only bad thing about resetting your router is that if you have made some changes on your network, they will be lost now. - Limiting your BT/WiFi devices. Turn off BT/WiFi devices that are not used. It will result in a less noisy environment. Remember this is only a guide on how to improve connection or prevent instability. If none of the tips are working at all, either your router is defective, or the source device has a problem.
Answered by: Joe G at Customer Service
Date published: 2017-05-26

HI, just received the Cinema SB400 as a gift and the unit did not come with an HDMI cable. Is this a generic cable or do i need a special one from JBL?

Asked by: FigPharma
Yes, you may use a generic HDMI cable.
Answered by: Joe G at Customer Service
Date published: 2017-05-18

I have had my sb400 for 1.5 years now. Lately the hdmi input does not show any image. There is sound but no image displayed on the tv. HDMI from playstation 3 to soundbar and from there to tv via hdmi. No image.

Asked by: wjp8102
I am sorry if you are having issues with the SB 400. If the connection is working before and suddenly stops, let us do this following isolation: 1. Please change HDMI cable to check if the problem is with the cable wire. 2. Try changing the ports on the SB 400 to see if the port is damaged. 3. Turn off the SB 400, TV and your playstation. First, turn on the SB 400, then, after 30 seconds, turn on the playstation as well as the TV to re-establish HDMI connection between those equipment. 4. Try connecting the source directly to your TV via HDMI connection and an optical/HDMI cable to the soundbar for audio. This is another connection that you can try to use. If this doesn’t help, please submit a ticket at www.jbl.com/support-contact.html and the Customer Service team will be more than happy to further assist you.
Answered by: Chris at Customer Service
Date published: 2017-05-17

Can the JBL SB400 be mounted to a Sanus Full Motion TV wall mount with Rocketfish Sound bar bracket?

Asked by: Muzz
Please note that installing a third party mounting bracket will be a user's responsibility. We still prefer you to use the factory provided wall mounting kit as this designed for the said product.
Answered by: Mark at Customer Service
Date published: 2017-05-06

hi... my sb400 tweeters stopped working and im guessing it´s either the crossover or both tweeters burned . but it´s kinda odd for both components to dis at the same time,, don´t you think???

Asked by: rubs
What you are experiencing is not normal on this speaker, do you experience the same problem on all sources like BT, AUX, HDMI. To be able to check if the unit will behave normally please perform a product reset. Place the sound bar on standby, while on standby press and hold "Vol - and "Surround Mode" for 3 seconds until the unit automatically turns on, after it turns back on the unit is back to factory settings. If the issue persist please submit a case at www.jbl.com/support-contact.html and the Customer Service team will be more than happy to assist you.
Answered by: Mel at Customer Service
Date published: 2017-06-09

Hello, is-it possible to control SB400 volume through HDMI CEC ?

Asked by: jahwisdom
No, unfortunately the SB400 doesn't have a CEC feature.
Answered by: Bryan at Customer Service
Date published: 2017-04-22

My remote control's volume control does not work. What can I do?

Asked by: vbob1234
First thing we have to make sure of is that there is nothing in between the remote and the SB400 that can cause interference with the IR signal your remote is sending to the soundbar and that you have fresh batteries on your remote. If the issue occurs after making sure that there is no interference and you have fresh batteries on the remote, complete a reset on the soundbar by following the steps below and retry the learning feature programming. While in In standby mode - Press "Volume-" (minus) button and "Surround mode" button simultaneously for approx 3 seconds - soundbar turns on - soundbar is reset. If the issue still persists, please submit a case at www.jbl.com/support-contact.html and the Customer Service team will be more than happy to further assist you.
Answered by: Joe G at Customer Service
Date published: 2017-04-13
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