N40 Sublime／N40 Standard

Product Tutorial

Table of Content

Use and Care Instructions

① Continuous Playing Time

We recommend limiting continuous playback to a maximum of 2 hours at a time, followed by allowing the music box to rest and cool down for about 30 minutes before further use. Giving the device proper rest helps minimize component wear and extends the product’s lifespan.

② Heat Dissipation and Condensation

If you notice slight fogging or condensation on the inside of the music box’s top cover after prolonged playback, there is no need to worry. Simply turn off the power and let the device rest for a while; once the condensation naturally clears, you can resume normal use. The internal components are coated with a specialized high-temperature-resistant and anti-rust protective oil, ensuring reliable protection.

③ Care and Maintenance

Do not remove the top cover or apply any additional lubricants yourself. Doing so may damage the original protective coating, adversely affecting product performance and reducing its lifespan.

④ Settings for Extended Playback

If you need to play music for an extended period, we recommend using the Scheduled Playlist feature. Set an interval of approximately 30 minutes between each playlist’s start time to give the music box regular breaks to cool down, further reducing component wear. For detailed setup instructions, please refer to the “Scheduled Playlist” tutorial.

N40 Product Tutorial

1. Unboxing & Assembling the Resonance Box

The Product's Packaging Box is the N40 Resonance Box!

Assemble it by following the steps:

(1) Open the Top Cover
Use your fingers or a screwdriver to remove the 8 hand-twist screws.

Muro Box共鳴箱也是 N40音樂盒的運送箱，其上蓋的可用徒手擰螺絲的設計，讓您拆裝自如。

(2) Package Contents

  • Muro Box-N40 main unit, scratch-resistant top cover protector, outer box (functions as resonance box), user manual, and brand introduction card.

  • Box A: Power cable, USB-C adapter.

  • Box B: Sound conduction post x 1, anti-vibration foot posts x 4, metal washers x 4.
N40 音樂盒的設計是將其共鳴箱當作產品出貨的運送箱，可在共鳴箱內收納使用音樂盒時所需的所有配件。

(3) Install the Anti-Vibration Foot Posts
Screw the 4 shock absorbers into the 4 corners’ holes under the resonance box.

(4) Place the Metal Washers
Place the 4 shock absorbers above their pads to prevent the shock absorber scratching the table surface.

(5) Adjust the Sound Conduction Post Height
Place the sound post to increase sound transmission and support the weight of the music box on the top board.

We recommend checking the height against the resonance box first, ensuring the sound conduction post extends slightly above the box body so it gently presses against the top cover once installed. The protruding height should be less than 1 mm; excessive height may cause the top cover to crack under pressure.

旋轉導音柱底座可調整長度
請調整至適合高度，不可高於共鳴箱超過 1 mm，可在箱邊比對高度後再移至您想要的位置。

(6) Install the Top Cover
Place the sound conduction post in your preferred position. You can confirm its placement by feeling the contact against the top cover or by looking through the side handle holes.

Once verified, reattach the top cover and securely tighten the 8 thumbscrews to prevent vibration noise during playback.

*In addition to placing it in the center, feel free to experiment with different positions to compare resonance effects and find your favorite tone.

Muro Box共鳴箱的上蓋有針對不同音樂盒機種的底座形狀設計安放的凹槽。

(7) Top Cover Design and Placement

  • C-shaped sound hole: Designed on the acoustic principles of a violin to enhance resonance.

  • Square groove with logo: Secures the bottom feet of the N20 music box.

  • Four circular grooves: Secure the four wooden feet of the N40 music box.

  • The hybrid groove design allows users who own both the N20 and N40 models to share the same resonance box.

2. Powering On / Starting Playback

(1) Place the Music Box
Carefully take out the music box, place it on top of the resonance box, and align its four wooden feet with the grooves on the top cover.

(2) Connect to Power

  • Take the power cable out of the box and connect it to the power port labeled “15V 3A” on the back of the music box.

  • Once plugged in, the music box will automatically power on and play a 5-note chime (Do–Mi–Sol–Si–Do).

  • Press the knob to play the factory default offline playlist (your custom selected song or the 15 official preset songs).

  • To change the songs or rearrange the order of the offline playlist, please pair the device with the Muro Box App first, then edit the offline playlist in the app.

  • No Power-Off Mode: Muro Box turns on as soon as it is plugged in; there is no built-in “power-off” switch or mode. We recommend keeping it plugged in for everyday use so it is always ready to play. If you wish to save power, simply unplug the power cable.

(3) Using the Knob to Control Playback

  • Press once: Play/Pause

  • Turn right: Next song

  • Turn left: Previous song

(4) About the MIDI Switch

Muro Box 插電就等同電源開啟，白色圈圈標示的是外接MIDI設備的開關(用法詳見教學網誌：https://murobox.com/zh/faq-2/app-tutorial-07-tc/ ) ，不是音樂盒的開關喔!
  • Please note that the button on the back of the music box is the MIDI device mode switch; you only need to press it when using the 5-pin MIDI Input.

  • This button is not a power switch.

  • If any of the following conditions occur:
    • The MIDI device mode switch is pressed
    • A MIDI device is connected to the USB-C MIDI Input
    • A MIDI device is connected to the 5-pin MIDI Input

      The music box will enter MIDI Input mode and await external MIDI control signals.

      In this mode, even if the device is successfully paired with the app, playback cannot be controlled via the app.

  • To restore app control, please exit MIDI mode and disconnect all MIDI cables.

(5) Bottom Feet & Transport Precautions

  • You may notice that only two of the feet on the bottom of the music box are equipped with anti-slip pads. This intentional design allows the other two feet to make direct contact with the resonance box, maximizing sound conduction and resonance.

  • As the music box has a substantial weight, please lift and set it down vertically when moving it. Avoid dragging it sideways across the surface to prevent wear or damage to the metal washers on the resonance box.

3. Connecting to the Muro Box App

(1) Download the Muro Box App
Search for “Muro Box” on the App Store or Google Play to download the official app for free.

(2) First-Time App Pairing

  1. After you login to the Muro Box APP, click on the gear icon to go to the settings page.

  2. Accept to receive firmware update notification, click on the button “Muro Box Connection Setting”.

  3. Follow the app’s 4-step instructions to complete the WIFI connection setting. You can watch the following tutorials:

*For more detailed operating instructions, please refer to the tutorial video below (applicable to both N20 and N40):

For iOS phone users 
For Android phone users

(3) Troubleshooting

  • If you experience connection issues and cannot proceed to the next step, please tap the gear icon in the app menu, select “Report an Issue,” and fill out the form.

  • If your issue can be resolved by our customer support team, we review submissions daily and will reply as soon as possible. If engineering assistance is required, it will be handled during regular business hours on weekdays.

4. Search & Play Songs

(1) Searching for Songs in the Muro Box App

Beyond the offline playlist, you can also search the music library within the Muro Box App to preview, play, and add songs to your custom playlists at any time.

(2) Disabling Automatic Song Title Translation (Optional)

  • By default, the app automatically translates song titles based on your phone’s system language.

  • If you prefer to display the title in the original language used by the uploader (e.g., English, Japanese, Korean, or German), follow these steps to turn off auto-translation:

    Tap your profile avatar > tap “Translation” > toggle “Auto-translation” to OFF (enabled by default).

(3) Can’t Find the Song You’re Looking for in the App?

  • If the search results are not many, you can also try to explore more melodies from the world’s largest online music box community: Music Box Maniacs (MBM). Please view this tutorial:
How to Export MIDI from MBM
  • If the above methods do not help you find a satisfactory music file, you may consider purchasing our customized arrangement service.
Learn more: Custom Melody Arrangement Service

5. Compose Music via Muro Box

Muro Box 智慧音樂盒的延伸功能-自由編曲

(1) Arranging Music with the App

All of the Muro Box products have the same app functions, including composing music directly on our app. Just a few clicks on the app, you can enter notes directly to complete your music creation and the Muro Box music box will become your exclusive pianist!

Tutorial: Compose Music via Muro Box App

(2) Essential Guide to Music Box Arrangement:

  1. File Format Limitation:
    Muro Box can only read single-track MIDI files and does not support other formats.

  2. Note Range Limitation:
    N20 Range: C3 to A5 (white keys only, excluding black keys).
    N40 Range: F2 to A6, excluding F#2, G#2, A#2, and C#3.
    (Middle C = C3, 261.6 Hz). Before using arrangement software, ensure that the middle C in the software is set to C3 or C4 to avoid playback errors in the music box’s note range.

  3. Playback Speed Limitation:
    At a tempo of BPM = 120, the shortest continuous note unit is an eighth note. This means that at this speed, the fastest continuous single notes can play at 120 notes per minute.
    Maximum Simultaneous Notes: 10 (up to 10 notes can be played simultaneously).

For recommended music box arrangement tools and external MIDI keyboards, click here to learn more. We also invite you to read the article “How to Bring Your Arrangement Creativity to Life with a Music Box” for more tips and techniques on arranging music for the Muro Box.

6.Connect with Other MIDI Device

Muro Box-N40 外接MIDI樂器-全球首創可編曲的智慧音樂盒

The following models have a MIDI input slot on the backside of the music box for you to connect it with a MIDI keyboard/ computer: N20 Standard, N40 Standard, and N40 Sublime. Please read the following tutorial to connect your MIDI device with the music box!

Tutorial: MIDI Input from Other MIDI Device

7. More Features Await You!

For a detailed introduction to Muro Box’s features, please refer to our FAQ’s first question: “How to Use Muro Box”.

Clicking it will provide detailed blog explanations for each feature setting.

Go to FAQ Page to Learn More

【Welcome to Join Our Global User Community!】

This is an international group for discussing how to use Muro Box and its app to create wonderful melodies for you and your loved one!

This group is only available for customers who have already purchased Muro Box.

Please carefully answer the 3 questions when joining the group:

  1. Have you liked the Muro Box Global Fan page already? If not, please go give it a like!
  2. Have you purchased a Muro Box already? Yes/No
  3. Please indicate your customer Name and the Email you provided to Muro Box.

 

【What Will We Share in this Group?】

  1. Tutorial Videos and Handouts
  2. App-related announcements: problem-shooting, version updates, new features survey
  3. Melodies and Composers we recommend
  4. Melody Composing Requests and Contests
Join Our Global Community
Email Us