‘Eight’ Wooden Acoustic Amplifier for iPhone Looks Amazing, Sounds OK

| In-Depth Review

Eight is the most unique iPhone accessory I've seen, and it's the most beautiful. Designed by Slovakian company Stark, Eight is a wooden acoustic amplifier/dock for your iPhone 5/5s/6. With the addition of the included Lightning cable, it's also a charging dock. It's hand crafted, made of gorgeous wood, is cleverly designed, feels amazing (seriously), but it sounds merely OK.

Eight by Stark

Eight by Stark

So What Is This Again?

Eight is made of solid wood, and it was designed to use the natural properties of wood to take both the incoming sound (your iPhone's microphone) and the outgoing sound (its speaker) and amplify them without using any electronic or digital amplification.

If you look at the picture, the circle on the left collects sound waves and channels them to your microphone using good old fashioned physics. Eight funnels the sound waves from your speaker to the circle on the right using the same principles.

This allows you to use your iPhone as a speakerphone, or for taking memos, or listening to your messages, and other tasks. Technically, you could use it as a speaker dock for music, but I wouldn't recommend it.


Eight works, and it works well, but wood is not a good conductor of low frequency sound, meaning the overall sound is thin and tinny. Phone calls sound fine, but few people will be satisfied with the way music sounds. In that Stark—a company that also makes high end speakers—advertises Eight as a way to listen to music, that point is worth emphasizing.

But it works for phone calls, turning your iPhone into an easy to use speakerphone or FaceTime platform. That's partially because wireless companies compress the ever-loving life out of our phone calls in the first place. We're used to them sounding tinny, and there's not a lot of low end to get lost.

Construction, Materials, Design

Eight truly is lovely—it looks amazing. The model Stark sent me for review was made with a walnut body and a birdseye maple cover panel (there's also a model with a cherry wood body and a walnut cover panel).

That wood looks great—I love wooden products, and it feels great, too. Smooth and heavy, Eight offers an aesthetic experience that I've found difficult to describe. It's real, natural. The finish is beautiful, the wood just looks great. And with each piece being hand made to order, every Eight will be unique to one degree or another.

It has a metal base that you can't really see when Eight is sitting on your desk. This is pretty clever, IMO, and it's because that base was designed to work in sync with the infinity/sideways 8 design of the model. The curve of the base is hidden by the curve of the Eight's 8 shape.

Bottom's Up

Attention to Detail

The metal has a textured finish on it, too, and this is were you start seeing the attention to detail Stark put into this device. It would have been easier and cheaper to slap a plastic stand, or an unfinished piece of stainless steel, but the metal they chose helps contribute to Eight's solid feel.

There are also four tiny rubber feet on the base that allow Eight to rest on your desk without scratching the surface. Two of those feet are used to cover the screws that attach it to the body, as shown in the image above. It's the kind of detail many people would never notice, but those who do will appreciate Eight's elegance and what it says about the overall quality of the product.

Next: Cover Panel and Form, Function, and Art

Product: Eight

Company: Stark

List Price: US$288



Gorgeous, well-made, high quality materials, beautiful design, and a close attention to detail.


Expensive, sound quality is thin and tinny.

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Have you ever used any of the other acoustic amplifier docks? How does it compare to them?

Regarding your “wood is not a good conductor of low frequency sound, meaning the overall sound is thin and tinny” comment, that is quite inaccurate. First, the wood isn’t conducting the sound, it’s guiding it. Yes, wood may absorb a little more sound all around than plastic, but considering speaker cabinets and bass drums have long been made of wood, I’m betting it does just fine with low frequency sounds. The problem is actually the speaker in your iPhone. It is tiny. The low end output on the tiny speaker in your phone is nearly nonexistent. Since the Eight is merely a very pretty megaphone, all it can do is passively amplify what it is given.


*sigh* this is an aspirational product. I aspire to own one, and I aspire to have a desk that is worthy of one. Sadly, the desk I have is filled with project papers, cables of all types and prototype plastic parts in an unorganized mess. Maybe when I retire?

Rob Lewis

MaxHedrm Thanks for correcting some of the errors in this review (it would be so great if people who review audio products knew something about audio). It’s hard to tell from the photo how this thing is supposed to work, but I’ll just note that bass frequencies have long wavelengths (37 FEET for a low 30Hz tone), so structures intended to guide, focus, amplify, or otherwise process them have to be really big to be effective. That, probably more than anything, is why this device has “tinny” sound.

I’ll bet you’d be amazed at the bass you could get out of an iPhone if you coupled its speaker to a refrigerator-size folded horn.

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