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When considering an amp case, you’ll likely come across a few questions.
For example,
* Whether you really need an amp case * What the typical price range is * Whether you should choose DIY or a custom order * Not knowing what size fits your amp
These are some of the common concerns.
An amp case is not a cheap purchase, and choosing the wrong one can lead to problems such as it not fitting properly or being too heavy to carry.
In this article, we’ll clearly explain how to choose an amp case without making mistakes, including price guidelines, how to think about sizing, the differences between DIY and custom orders, and how to choose based on your intended use.
By the end of this article, you’ll be able to determine whether you need an amp case and which specifications are right for you.
- The Reality of Not Having an Amp Case
- COSMIOS Trading’s Philosophy
- Why Are We Able to Keep Prices This Low?
- **Compatible Models for ARK Amp Cases**
- About ARK Amp Case Size Classification
- Why is COSMIOS able to offer such low prices?
- Features of ARK Amp Cases
- Price List (Shipping Included)
- “View our production examples here.”
- Related articles (internal links)
- Purchase here (ONLINE SHOP)
- Finally
The Reality of Not Having an Amp Case
■ ① Damage During Transport Is Worse Than You Think
Although amplifiers are precision equipment, they are also very heavy, which puts significant strain on them during transport. You have to handle them in various situations—loading them into and unloading them from a car, going up and down stairs, navigating steps and uneven surfaces, and moving through narrow passageways.
In these situations, there’s always a chance of making contact with something, and the risk of bumping into objects is essentially unavoidable.

Common issues include damaged corners, peeling exterior surfaces, harm to the wooden structure, and even impact damage to internal components. These problems often accumulate little by little through daily transport, and by the time you notice, they may have become too significant to ignore.
Once an amp is damaged, it not only affects its appearance but can also potentially impact its sound quality.
■ ② Accidents in Studios and Live Venues
At studios and live venues, there are constant risks such as contact with other equipment, instability when stacking, and accidental bumps from people moving around. In these environments, unexpected impacts are common, and amps are often placed in situations that can’t really be considered safe.
Without a case, even minor impacts can pose a risk of the amp tipping over.
■ ③ Worn Appearance = Reduced Credibility
Often overlooked, the appearance of your gear directly shapes how others perceive you as a player. An amp covered in scratches, with a dirty exterior or crushed corners, can give the impression that it hasn’t been handled with care.
Especially at live shows, joint gigs, and professional settings, these first impressions are something you simply can’t afford to ignore.
■ ④ Risk of Repair Costs and Replacement Expenses
Amp repairs are by no means cheap. It’s not uncommon for repair costs to run into tens of thousands of yen, and in some cases, replacement may even be necessary.
The way to prevent these risks before they happen is by using an amp case.
COSMIOS Trading’s Philosophy
The name COSMIOS comes from the Greek word meaning “well-ordered.” It carries not only the idea of something looking neat and organized, but also the nuance of an entire equipment environment being properly managed.
What we aim for is not simply selling cases. Our goal is to provide a well-organized equipment environment itself—at a price that anyone can afford.
If cases designed to protect expensive gear are themselves too expensive to afford, that’s not how things should be. That’s why COSMIOS achieves overwhelmingly low prices while maintaining high quality, durability, and a high level of customization.
Why Are We Able to Keep Prices This Low?
Some of you might even feel, “It’s so cheap that it actually makes me a bit uneasy.”
However, the reason is actually very simple.
■ Lean, Highly Skilled Team Operation
COSMIOS is a company run by two brothers. Because it is not a large organization, we are able to thoroughly minimize labor, administrative, and unnecessary costs, enabling efficient operations.
■ Direct collaboration with Chinese factories
We have partner factories in China, and COSMIOS’s local staff communicate with them directly. This allows us to reduce intermediary margins, accelerate development speed, and at the same time maintain strict quality control.
Additionally, our factories partner with domestic logistics providers in China, which helps keep local shipping costs low. For transportation from China to Japan, our local staff conduct thorough research and carefully select reliable carriers that offer attentive service at a reasonable cost. As a result, we achieve significant cost reductions across the entire logistics process.
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**Compatible Models for ARK Amp Cases**
At COSMIOS, instead of using the typical L/R (left/right) design, we create optimal case designs based on size categories such as 110, 112, 212, 410, 412, and heads. This approach allows us to support a wide range of amplifiers while maintaining high precision and keeping manufacturing costs low.
List of Compatible Models (Representative Examples)
*Please note that specifications may vary even within the same model. If you are unsure, please contact us in advance.*
| Brand | Model Number | Case specifications, etc. |
|---|---|---|
| ALBIT | B-280 | Head amp case |
| AMPEG | SVT-410 HLF | 410 (with casters) |
| AMPEG | SVT-3pro | Head amp case |
| AMPEG | B-15R | 115 (*custom order*) |
| BADCAT | Black Cat | 112 |
| BOGNER | Ecstasy | Head amp case |
| BOGNER | 4×12 | 412(with casters) |
| CARR | Slant 6V 112 | 112(with casters) |
| CORNELL | Romany Plus | 112(with casters) |
| ENGL | E670 | Head amp case |
| Fender | Twin Reverb | 212(with casters) |
| Fender | Blues Jr | 112(with casters) |
| Fender | Vibrolux Reverb | 212(with casters) |
| Fender | Bassman ’59 | 410 (with casters) |
| HIWATT | Custom 400 | Head amp case |
| Hughes & Kettner | Tri Amp MK II | Head amp case |
| Ibanez | Promethean | 110/112 (*varies by model; please inquire for details*) |
| KOCH | Powertone Head | Head amp case |
| Laney | L20H Head | Head amp case |
| Line6 | Vetta II | 212 (with casters) *Please confirm due to large size* |
| Marshall | 1960A | 412(with casters) |
| Marshall | JCM800 | Head amp case |
| Marshall | DSL-100 | Head amp case |
| Mesa Boogie | Mark IV | 112 (with casters) / Head amp case |
| Mesa Boogie | Dual Rectifier | Head amp case |
| Orange | PPC-412 | 412(with casters) |
| Peavey | 5150 | Head amp case |
| Roland | JC-120 | 212(with casters) |
| TWO ROCK | Custom Reverb | 112/212 (*depending on specifications*) |
| VOX | AC30 | 212(with casters) |
About ARK Amp Case Size Classification
ARK amp cases are designed in size categories such as head amp models, as well as 110 (1×10" speaker), 112 (1×12"), 212 (2×12"), 410 (4×10"), and 412 (4×12").
Because these categories are defined by clear standards, it’s easy to intuitively determine which size your amplifier falls into. When placing an order, you can select the most suitable case by entering your amp’s size on the product page. If you’re unsure, we recommend contacting us in advance.

Why is COSMIOS able to offer such low prices?
COSMIOS is not just a low-cost manufacturer. We have partner factories in China, where Japanese staff are stationed on-site to oversee quality control. In addition, product development in Japan incorporates the perspective of musicians, ensuring a balance between practicality and ease of use.
Additionally, because we operate with a small, highly focused team of just two brothers, we are able to optimize costs effectively. Through these efforts, we achieve both high quality and low prices while offering a short delivery time of approximately 50 days.
You can find the shop here 👇

Features of ARK Amp Cases
■ Outstanding durability
Each caster has a load capacity of 200 kg, and the case as a whole is designed to support a total weight of over 250 kg.

Verification experiment blog is available here 👇

■ Premium EVA cushioning material used
Instead of inexpensive foam, we use high-density material ideal for instrument protection (EVA cushioning).
Click the article below for more details 👇

■ Full custom options available
All of the following can be customized:
- Casters (with omnidirectional stoppers)
- Top handle
- Side handle
- Corner guards
- Frame
- Latch locks
- Rivet color

- Panel color (8 colors available)

For more details on the top handle customization, please see the article below 👇

Price List (Shipping Included)
| “Type” | Price |
|---|---|
| Bottom-mounted caster case | Starting from ¥19,800JPY |
| Head amp case | Starting from ¥29,800JPY |
| 110 | Starting from ¥29,800JPY |
| 112/212 | Starting from ¥40,800JPY |
| 410/412 | Starting from ¥62,500JPY |
👉 Among products with similar specifications, it is one of the most affordable options
Bottom-mounted casters can be ordered from the link below 👇

ARKヘッドアンプケースはこちら👇より注文可能

ARK110モデルのご注文はこちら👇よりどうぞ

ARK 112–212 models can be ordered from the link below 👇

ARK 410–412 amp cases can be ordered from the link below 👇

“View our production examples here.”
See actual production examples here 👇

Head Amp Case: Tsuzura Type: Rubber Feet Specification
Panel Color: Matte Black

Head Amp Case: Tsuzura Type & 412 Cabinet Case: Tray Type
Panel Color: Army Green

Head Amp Case: Tsuzura Type: Rubber Feet Specification
Panel Color: Matte Black

Head Amp Case: Tray Type: Rubber Feet Specification
Panel Color: Matte Black

ARK112 Amp Case: Tray Type
Panel Color: Snow White

Head Amp Case: Tray Type: Rubber Feet Specification
Panel Color: Yellow Orange

Head Amp Case: Tray Type: Rubber Feet Specification
Panel Color: Snow White

ARK112 Amp Case: Tray Type
Panel Color: Matte Black
Full Black Specification: Top Handle Customization
More will be uploaded regularly.
Related articles (internal links)
- Price List
- Color Options

- Customization Details

Purchase here (ONLINE SHOP)

Finally
An amp case is not just a box. It reduces the stress of transport, securely protects your valuable equipment, and even enhances its overall appearance.
COSMIOS ARK amp cases deliver all of these benefits at a high level.
Please contact us via the link below 👇

COSMIOS Trading also operates an online shop.
Please access it via the link below 👇



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