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    Blackbird 4K 4x1 HDMI Switch with Digital Coaxial and Digital Optical Audio Outputs
    Product # 15375
    Native Resolution: 4K
    1080P 4K
    Out of Stock ETA: 2/14/2018


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    Blackbird 4K 4x1 HDMI Switch with Digital Coaxial and Digital Optical Audio Outputs

    This is a high performance HDMI® switch with four inputs, one output, and separate digital and analog audio outputs. It supports HDCP repeater functions and fast switching between any of the four HDMI inputs. The system supports all 3D TV formats in addition to all HDTV formats up to 4K. Furthermore, the remote control gives you complete control over the selection of sources and makes the device incredibly easy to use.


    • Supports multiplexed HDMI input
    • Compliant with the HDMI, CTS 1.4a, DVI 1.0, and VESA DisplayPort 1.1a standards
    • Supports CEC 1.4
    • HDCP repeater support
    • Supports 3D and 4K video with up to 16-bits/channel Deep Color
    • Supports high-definition audio formats, including 7.1-channel Dolby TrueHD™ and DTS-HD Master Audio™
    • Separate digital and analog audio outputs

    Support Files:

    Blackbird™ is a trademark of Monoprice Inc.

    HDMI®, the HDMI Logo, and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.

    Dolby® and the double-D symbol are registered trademarks of Dolby Laboratories. Dolby TrueHD™ is a trademark of Dolby Laboratories.

    DTS®, the Symbol, and DTS + the Symbol together are registered trademarks, and DTS Master Audio™ is a trademark of DTS, Inc.

    Start typing your question and we'll check if it was already asked and answered. Learn More
    Browse 29 questions Browse 29 questions and 36 answers
    Does this switch support HDCP 2.2? What about 4k at 60fps?
    John G on Dec 3, 2016
    BEST ANSWER: The specifications say HDMI 1.4a and thus just 4k at 30fps. HDCP 2.2 requires HDMI 2.0, so this will not support HDCP 2.2.
    Will this pass dolby digital 5.1 through to the digital audio out? Also, does it support ARC?
    A shopper on Dec 2, 2016
    BEST ANSWER: It does not support dolby digital passthrough. I hooked it up to my Sony BD player and wasn't able to get any sound from the optical output on the switch. DirecTV and chromecast work fine with dolby surround (not digital). After talking with customer support, I confirmed this is a limitation of the product.
    Will the 1535 Blackbird switch work with the Roku Premiere + and the Sonos Playbar for 5.1 surround sound? Thank you
    A shopper on Jul 20, 2017
    BEST ANSWER: Not sure about the Roku but it will work with Sonos.
    Does this product convert Linear PCM audio to the other audio formats, such as Dolby Digital 5.1? I bought this product so I could output surround sound from the Nintendo Switch to my audio receiver (HDMI linear PCM audio from Nintendo Switch via this product to optical audio to receiver), but I am only getting stereo sound.
    Scott C on Sep 15, 2017
    BEST ANSWER: Hello Scott,

    This unit will not convert any formats, it supports 2 Channel PCM only. Thank you for asking.
    Does this auto switch?
    A shopper on Aug 10, 2017
    BEST ANSWER: No, it does not auto switch. It is one of the cleaner signals I've seen in low-cost switchers with pass-through audio that I've tested.
    I just purchased this and didn't realize it was always on. Is this safe to leave on all the time? or do I need to turn it off every time?
    Mark S on Aug 16, 2017
    BEST ANSWER: I leave mine always on and have never had a problem. Sometimes I wish the lights were less bright, but that's not a big deal.
    Do any of the HDMI ports have Audio Return Channel (ARC) capability?
    A shopper on Nov 27, 2016
    BEST ANSWER: Hello, in regards to your inquiry, this item should support audio return channel accordingly. Please refer to our live chat if you have any other questions. Thank you!
    Does this switch come with a power adapter?
    David E on Jan 19, 2017
    BEST ANSWER: Yes the Blackbird switch comes with power adapter.
    Planning to use the optical out to my soundbar and connecting DVR, Chromecast, and home theater pc through this. My question is will the HTPC see the 5.1 capability of my soundbar or continue (as it is now while connected directly to the tv) see the TV as a 2.0 device and only allow output 2.0 through HDMI and the soundbar will faux the 5.1 as it is now while connected to the tv output?
    Christine K on Nov 28, 2017
    BEST ANSWER: i can’t speak for your HTPC specifically, but generally-speaking this is the reason I purchased this box, and it works well for it. My Sonos PLAYBASE was only getting 2.0 output from my TV and that bugged me. I bought this and now it gets 5.1 from connected devices. Works great.
    Can I hold up the 3.5mm headphone to my 2 channels stereo amplifier only with RCA inputs ?
    Frank W on May 12, 2017
    BEST ANSWER: Thank you for your question. Yes, you would be able to connect from the 3.5mm port to the RCA inputs on your Stereo Amplifier. You would use a 3.5mm Stereo Male to 2 RCA Male cable. Such as Product # 5598.


    You will see we offer various lengths from 1.5ft to 50ft. Should you require additional assistance, please reach out to our technical support team with a detailed question via any of the methods available here:


    Our knowledgeable Technical Support staff would be more than happy to assist. Thank you
    One reviewer says that Harmony remotes are not supported, but I found an entry matching this device listed as MonoPrice 15375.. which is correct?
    David E on Jan 19, 2017
    BEST ANSWER: I'm using the 15375 device.
    The description states "Support multiplexed HDMI 4-input", does this mean I can tile four 1080p inputs on a UHD/4K display?
    A shopper on Sep 12, 2017
    4.1 / 5.0
    682 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    Audio outputs useless, cheap build quality
    If you need this switch's audio outputs, look elsewhere. I tried three different sources, all set for PCM stereo audio, and got nothing out of the analog or optical connector, irregardless of the audio output mode setting. Well, if I turned off "display discovery" on my xbox 360, I would then get audio, but with garbled video. I then inserted my Monoprice 10251 HDMI Audio Converter between this switch and my TV, which produced audio out of all three sources, so I know for certain my sources were outputting PCM audio over HDMI.

    To make matters worse, the build quality is cheap. The two audio connectors are so close, I could not plug in my analog audio and optical audio cables at the same time. The box itself is so small and light, that HDMI cables will just pull it to the floor unless it is mechanically clamped down in some way. To add some confusion factors, it comes with a cheap generic remote which has extra buttons having nothing to do with this switch, Monoprice states that it has a digital coaxial connector which it doesn't, and the documentation supplied is a joke.
    February 21, 2017
    Response from Monoprice
    Truly sorry for any inconvenience while using the Product. From your feedback, it sounds like you may have a defective product. If you can please reach out to us direct at reviews@monoprice.com with your order information, we can look into see what options are available for replacement.
    April 9, 2017
    Steven LStaff
    Samsung TV and Blackbird 4K 4x1 HDMI® Switch with Digital Coaxial and Digital Optical Audio Outputs
    This auto switch does not play well with my Samsung TV. The autoswitch must be turned on after the TV is turned on. Otherwise the TV does not recognize the signal from the autoswitch. This is also true if you switch from the TV input to one of the three other input options such as a Blue Ray player. In the latter situation, while the TV is still on you must turn the autoswitch input from the Blue Ray player to the TV then turn off the autoswitch and then turn the autoswitch back to the on position. The problem is multiplied because the remote for the autoswitch does not have a ON/OFF button. The ON/OFF is a button on front of the autoswitch that must be manually pressed. As a workaround for the manual ON/OFF, I plugged the autoswitch into a remote control unit designed for a lamp. Otherwise the autoswitch appears to work okay.

    PROS: Allows four inputs and a single output to the TV. Fewer cables visible to the wall mounted TV.
    All inputs can take advantage of the optical (TOSLINK) output. Allows me to bypass the SAMSUNG TV lower quality audio setting for my SONOS soundbar.

    CONS: Remote does not have a ON/OFF button.
    Does not work well with my Samsung TV.
    July 16, 2016
    Multifaceted Switch for Advanced Home Theater Setups
    This switch was purchased with the hope that it did not have to be powered off half the time in order to get a valid
    HDCP handshake with any of my inputs including DirecTV, Roku or LG Blu-Ray player. I previously used a Monoprice 5557 unit which was always troublesome.

    This new switch meets and exceeds all of my requirements and has worked flawlessly for the past 6 weeks in all modes.

    Note that there is an error in the web site spec listing. The switch does not support Digital Audio Out, only Optical and stereo. Highly recommended and for the extra $10, the older model (5557) should not be considered.

    PROS: Meets all requirements of a high performance HDMI switch for advanced home theater setups.

    CONS: None at this time.
    July 7, 2016
    Great product with some room for improvement
    The switch doesn't automatically switch when a device is turned on. This could be a pro for some but I haven't had any trouble with it on my other Monoprice switch and I miss it a bit in this one. The remote also has an auto button which will change to a powered on device. I plugged all my devices that stay on into this switch and everything else into my old switch and daisy chasing them together. This gives me the auto select feature for the devices I want it for but limits me from using it with 4k. The other feature I wish this switch had is volume control on the remote. The audio outputs operate at a set volume and it's inconvenient in my situation as I can't control my volume with a remote.

    The unit is solidly built and the lights aren't the blinding blue leds that plague some of the other Monoprice switches.

    All in all the unit works as designed. The audio out is useful if there are grounding issues in your house as HDMI can pick that up with the audio signal. Coax cable is notorious for this. Whenever my cable box was plugged into my old Monoprice switch my audio was unbearable. The optical audio output on this switch doesn't allow the noise to travel to the speakers.
    December 22, 2016
    1 year ago
    Inexpensive, basic fix for Sonos audio sync issue
    I bought this to fix the Sonos audio sync issue.

    This is the issue where the audio is delayed coming out of the Sonos speaker (a Playbase in my case) relative to the video being seen on the TV (a 3 year old Sony).

    It occurs when the signal from the cable/satellite box is fed into the TV, then the audio from the TV is sent to the Sonos speaker. The TV adds extra processing time which causes the de-sync.
    [The Sonos speaker does have a delay setting, but it's to delay the audio in the event the audio is heard *before* the video. This issue is the opposite of that.]

    Anyway, if you have this issue, this Blackbird 4K 4x1 HDMI Switch (#15375) will fix it. There will be some rerouting of cabling involved.

    The reason I gave 4 stars is because the box doesn't support ARC. Or at least I couldn't get it to work. I was trying to watch Netflix via the TV's built-in app, and the audio continued playing from the Input #1 source. The ARC button on the remote has no effect (as expected since the manual designated it as "No Function").

    Also, be aware that if you have a cable box like mine where it never actually turns off, the audio will continue to be heard, even if the TV is off (since it's no longer routed through the TV). And it doesn't look like you can turn off the HDMI switch box remotely. I ended up just muting the Sonos speaker when turning off the TV.

    Another note, even though the the product name says "Blackbird 4K 4x1 HDMI Switch with Digital Coaxial and Digital Optical Audio Outputs", it:
    1) Works fine on lesser resolutions than 4K like 1080p (my TV's resolution), and
    2) Does not have a Digital Coax in or out, which doesn't matter in my case, but might for someone else. To be clear, this only has a Stereo headphone output and a Toslink output.

    If you need a basic inexpensive fix, this will work. If you need more functionality (ARC, volume control, full remote control, etc.), look at some of the more expensive offerings.
    October 9, 2017
    3 months ago
    Another win for Monoprice
    Monoprice is consistently on point with their hardware. This is no different. Great job, guys.
    October 13, 2017
    4 months ago
    well worth the investment ...
    product was easy to set-up and install ... connecting xfinity cable box, Roku, LG Blu-Ray and amazon firestick to a Sharp Aquos/Vizio soundbar via HDMI connections ... all work easily and well ...
    February 20, 2017
    11 months ago
    It works great
    Super stable and easy to use. Toslink out works flawlessly with all content and inputs. Very impressed given the trouble I've had with other brands. Good job Monoprice!
    June 1, 2017
    8 months ago
    Blackbird 4K 4x1 HDMI Switch with Digital Coaxial and Digital Optical Audio Outputs
    This product works great for me. I could’nt be more pleased.
    October 25, 2017
    3 months ago
    Great product works with no problems.dont let tht little red light run u away u never really see it.. i connect 3 items to it with no problems
    August 22, 2017
    6 months ago


    Back Order This item should ship today (1/17/2018) if ordered within 10 hours 33 minutes