Stereo Phone Amplifier - Free 3D Print Model

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MKCAMC

Hobby & DIY>Music

IP Report

Print Profile(1)

All

X1 Carbon

P1S

P1P

X1E

A1 mini

H2D

H2D Pro

H2S

P2S

H2C

X2D

A2L

0.2mm layer, 3 walls, 10% infill

Designer

7 h

1 plate

4.7(23)

Open in Bambu Studio

Boost

228

526

837

297

Released

Description

I created this stereo phone amplifier to provide better sound when watching videos or playing music. Sound is gathered on the right side from the downward firing speakers at the base of the phone. Sound is gathered on the left side from the forward facing speaker at the top of the phone. If you would prefer this to be the other way, the files can simply be mirrored in the slicer. I specifically designed this amplifier to fit an iPhone 13 Pro Max. The slot to place the phone in measures 170mm. This model can easily be scaled on the x axis to accommodate any phone though. I provided a version that is split in order to fit on the build plate, as well as a solid version. The split version has guide pins/holes to aid in allignment. Simply use your favorite glue and the two sides will line right up. Enjoy!

Comment & Rating (40)

@Arren

Print Profile

0.2mm layer, 3 walls, 10% infill

Recommended! Loud and clear! It definitely boosts the volume, and the sound quality is decent. I measured the dimensions and had to enlarge it slightly to accommodate an iPhone 16 Pro Max with a case. The left side doesn’t fully cover the top speaker of the phone. However, the print quality is good, except for minor stringing on the overhanging parts. Absolutely avoid using "狂暴模式," and use glue to secure it. If you’re using an A1 like me, don’t turn on the fan. Don’t ask how I know 😂

Show original

@JohnDangle

Print Profile

0.2mm layer, 3 walls, 10% infill

Resizing was easy and fine, and needed some tuning in depth as well to accommodate my phone

Other Issues:It just doesn't amplify well at all, just makes the sound a bit muffled. Direction and placement of the sound holes was fine, but something about the design just doesn't let the sound out well enough. I've been looking for something like this for a while and was looking forward to using it. If you iterate on the design I'd love to give it another shot.

The profile uploader has replied

@MKCAMC

If you’re an audiophile, don’t expect a 3d printed horn amplifier to please you. Probably best just to get a Bluetooth speaker. I use this regularly with great results. It’s literally the same horn as my single speaker amplifier that everyone seems to love.

(Edited)

@JohnDangle

Replying to @MKCAMC :

I'm coming from putting my phone in a cup; there was no mention of audio quality, this didn't amplify the sound is all I am saying. Not sure what you're referencing in regards to another design, but this one just didn't work for me. As I said, if you have further iterations I'd try them out. As of now, the sound just isn't amplified.

@MKCAMC

Replying to @JohnDangle :

This is the other version I was talking about. https://makerworld.com/en/models/49945#profileId-51727

@user_3234991888

I love the concept - it's the only stereo amplifier I have found out there. I'm dumb and haven't been able to scale it down where it fits an iPhone 14 Pro succesfully, though. Not the designer's fault at all. I printed it and it worked well with a friend's iPhone 13, who now has a fancy 3d-printed amplifier.

(Edited)

@jeffmtnman

I'm trying to scale this down to fit my iphone SE. I'm a bit confused as to how the sound gets to the left side when the two side that join are solid with no apperent opening for the sound to travel through.

The designer has replied

@MKCAMC

iPhones have stereo sound that uses the top speaker. The sound on the left side comes from the speaker you put on your ear. So the sound on the left comes from the forward firing top speaker and the sound on the right comes from the downward firing bottom speakers. That’s why you can see a little piece on the left that sticks out in front of the phone to gather sound. if you want to scale it for a smaller phone, I suggest only scaling the y axis. If you scale the whole model down uniformly, your phone would likely not fit behind the sound gathering piece on the left side.

@jeffmtnman

Replying to @MKCAMC :

Ok great. Now I understand a lot better. I wasn't aware of the iphone's use of the upper speaker for music. Thanks much.

@MKCAMC

Replying to @jeffmtnman :

You’re welcome

@dfreshkremer

Print Profile

0.2mm layer, 3 walls, 10% infill

Very cool design. It didn't glue up super well for me (like the sides weren't flat). Probably my problem and not a problem with the design. It does increase the volume, but not by that much. I had to take off my case, and even then, the speakers barely made it "into" the opening for the amplification.

The profile uploader has replied

@MKCAMC

If you read the instructions, I state that you’re supposed to scale it on the y axis to make sure it it the proper length for your particular phone. I provided the current length of the slot you can easily make the proper adjustment. If it’s scaled properly you will get really good amplification.

@dfreshkremer

Replying to @MKCAMC :

It was scaled properly. The phone fit just fine. I took the case off so the speakers wouldnt be blocked by it. With your design, my speakers (iphone 14 max) don't point into the tunnel. It definitely does amplify it, but not as much as you would hope. Cool design though for sure!

@ItalianMutt

would you do me a solid and add a print profile allowing the ability to print the full amp, the H2S build plate may handle it it’s slightly larger than any of the others.

The designer has replied

@MKCAMC

If you place the components end to end, press CTRL, click to select both components, right click, then press merge, you can combine them into one object. It’s a useful function that I’ve used many times. I do not have an H2S to test print it on and if I don’t provide a picture of the finished print, Bambu will see it as a violation of their rules. it will be a strike against me and they’ll remove the profile.

(Edited)

@lbyar1986

Print Profile

0.2mm layer, 3 walls, 10% infill

WORKS WELL. IS TOO BIG FOR IPHONE 14 PRO MAX

The profile uploader has replied

@MKCAMC

That’s strange because that’s the same phone that’s in the picture. 🤣 It’s meant to fit the phone itself but also have space for a phone case if you have one on.

@user_1342459856

Print Profile

0.2mm layer, 3 walls, 10% infill

really improves the stereo sound

@user_2225329012

I extended the size out to 178mm and its still tight for an iphone 14 pro max, big item sounds good

@user_2128683536

I printed & Loved your other version. Would you consider sharing your cad files for this version? I'd like to make it expand / collapse so it would fit multiple phones. It will make a great gift year round. TIA

License

This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.

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