--- title: "AI Synthesis: AI026 Line I/O Interface | Takazudo Modular" url: "https://takazudomodular.com/en/products/ai-line-intro/" language: en description: "An introduction to the AI Synthesis AI026 Line I/O Interface. The AI026 Eurorack Line Interface converts between line-level signals (approximately +/-2V) and the signal levels commonly used by Eurorack modules (approximately +/-5V). This allows you to boost low-voltage line-level signals to standard modular synth levels, or perform the reverse." alternate_ja: "https://takazudomodular.com/products/ai-line-intro/" source: "Takazudo Modular" --- ![AI Synthesis: AI026 Line I/O Interface](https://imgs.takazudomodular.com/images/p/line-io-white-0-front__og/revisions/production/r1-f7ddd97d5973e39b61f45db5eb8a31ee2c14abd7cd783df65ec03f4d9526a349/1200w.webp) # AI Synthesis: AI026 Line I/O Interface Author: Takazudo | Published: 2024/07/14 - [# AI Synthesis](https://takazudomodular.com/en/tags/ai-synthesis/) - [# Modular Synthesizer](https://takazudomodular.com/en/tags/modular/) - [# Utility](https://takazudomodular.com/en/tags/utility/) - [# Audio I/O](https://takazudomodular.com/en/tags/audio-io/) This is an introduction to the **AI026 Line I/O Interface** by AI Synthesis, available at Takazudo Modular. The AI026 Eurorack Line Interface converts between line-level signals (approximately +/-2V) and the signal levels commonly used by Eurorack modules (approximately +/-5V) through gain and attenuation. This allows you to boost low-voltage line-level signals to standard modular synth levels, or perform the reverse. It is available in two panel versions -- aluminum and black -- and we also carry DIY kits. This product is available for purchase below. [![AI Synthesis: AI026 Line I/O Interface (Aluminium Panel)](https://imgs.takazudomodular.com/images/p/line-io-white-0-front__og/revisions/production/r1-f7ddd97d5973e39b61f45db5eb8a31ee2c14abd7cd783df65ec03f4d9526a349/2000w.webp) AI Synthesis: AI026 Line I/O Interface (Aluminium Panel) 22,800 yen (tax & shipping included)](https://jp.mercari.com/shops/product/RvnWQHrb2fLHpBNHUTd3wg) [![AI Synthesis: AI026 Line I/O Interface (Black Panel)](https://imgs.takazudomodular.com/images/p/line-io-bk-0-front/revisions/production/r1-704e11aa5ce532f18f688ec3f212a36961e15b341bff43bcb01c9102958cd51b/1970w.webp) AI Synthesis: AI026 Line I/O Interface (Black Panel) 22,800 yen (tax & shipping included)](https://jp.mercari.com/shops/product/DiKCMdnH35HiLUAWVBANpL) [![AI Synthesis: AI026 Line I/O Interface (Aluminium Panel) DIY Kit](https://imgs.takazudomodular.com/images/p/diy-line-io-white-0-front/revisions/production/r1-5b34afd8afbeed2ebe6778a0555ba09aea2204fef0514fa51544cf436fbf27b8/2000w.webp) SOLD AI Synthesis: AI026 Line I/O Interface (Aluminium Panel) DIY Kit 15,800 yen (tax & shipping included) You can set up restock notifications on Mercari Shops.](https://jp.mercari.com/shops/product/gxXrBeZxL7zsEJZhhcVMx3) You can set up restock notifications on Mercari Shops. [![AI Synthesis: AI026 Line I/O Interface (Black Panel) DIY Kit](https://imgs.takazudomodular.com/images/p/diy-line-io-bk-0-front/revisions/production/r1-9df12c32e42102e9348f1580e5a81db57bd19710eafee10731f1535cb0c049a4/2000w.webp) AI Synthesis: AI026 Line I/O Interface (Black Panel) DIY Kit 15,800 yen (tax & shipping included)](https://jp.mercari.com/shops/product/thzFUKynMFSCSDrKZKcLqb) - [Buy this item via Buyee (International shipping)](https://buyee.jp/mercari/item/RvnWQHrb2fLHpBNHUTd3wg) - [Buy this item via Buyee (International shipping)](https://buyee.jp/mercari/item/DiKCMdnH35HiLUAWVBANpL) - [Buy this item via Buyee (International shipping)](https://buyee.jp/mercari/item/gxXrBeZxL7zsEJZhhcVMx3) - [Buy this item via Buyee (International shipping)](https://buyee.jp/mercari/item/thzFUKynMFSCSDrKZKcLqb) ## Product Photos: Assembled ![Product photo](https://imgs.takazudomodular.com/images/p/line-io-white-0-front__og/revisions/production/r1-f7ddd97d5973e39b61f45db5eb8a31ee2c14abd7cd783df65ec03f4d9526a349/2000w.webp) ![Product photo](https://imgs.takazudomodular.com/images/p/line-io-bk-0-front/revisions/production/r1-704e11aa5ce532f18f688ec3f212a36961e15b341bff43bcb01c9102958cd51b/1970w.webp) ![Product photo](https://imgs.takazudomodular.com/images/p/line-io-white-2-back/revisions/production/r1-9b49fc7ce2962b2c2483893c7ecf8c1436af70e692cb5ab9324918e6c0bbeb9d/1840w.webp) ## Product Photos: DIY Kit ![Product photo](https://imgs.takazudomodular.com/images/p/diy-line-io-white-0-front/revisions/production/r1-5b34afd8afbeed2ebe6778a0555ba09aea2204fef0514fa51544cf436fbf27b8/2000w.webp) ![Product photo](https://imgs.takazudomodular.com/images/p/diy-line-io-bk-0-front/revisions/production/r1-9df12c32e42102e9348f1580e5a81db57bd19710eafee10731f1535cb0c049a4/2000w.webp) ## Manuals and Guides Takazudo Modular publishes manuals and guide articles for this product. Please see below. - [AI026 Line I/O Interface: ManualJapanese translation included](https://takazudomodular.com/manuals/ai026-line-io-interface/) ## Features of the AI026 Line I/O Interface The output voltage of music equipment varies from device to device. When I briefly looked into what typical levels look like, I found that, for example, the Behringer [TD-3-SR](https://www.behringer.com/product.html?modelCode=0718-AAN), an affordable bass synth, outputs approximately +/-2.75V peak from its OUTPUT. In contrast, the voltage flowing through patch cables in a typical modular synthesizer is often within the +/-5V range. Because of this, when receiving output from music equipment into a modular synth, the volume may feel unusually low. This is because the voltage swing representing the audio data from that equipment's output is small. This is not a matter of better or worse -- it simply results from different manufacturers building to their own specifications. Conversely, when receiving modular synth output on another piece of music equipment, the sound may be far too loud. For example, plugging headphones directly into a modular synth's VCO output would produce a shockingly high volume\*. The AI026 Line I/O Interface is a module designed to **adjust these volume differences**. \* We don't recommend trying this, as it could damage your ears or headphones. ### For Example, Wingie2 Among the products we carry, the [Wingie2](https://takazudomodular.com/en/products/wingie2-intro/) has a line output, and you can connect this jack's output to other modular synth modules to use Wingie2's audio within your modular system. While I haven't measured it precisely, my impression is that Wingie2's line output level seems lower compared to other modular synth modules. In such cases, using this AI026 allows you to amplify Wingie2's output to the larger +/-5V voltage range used by modular synths. Additionally, Wingie2 also accepts external audio via line input. If you try to feed modular synth audio into it, the volume may be too high for Wingie2 to handle properly. Wingie2's manual advises against inputs that are too loud, and feeding the high voltage of a modular synth directly could result in clipped audio. The AI026 can also be used in this scenario to attenuate the modular synth's output. In this way, when incorporating other music equipment into your modular synth setup, having one AI026 enables seamless audio level adjustment. ## Panel Description Each section of this module serves the following purpose. **1\. LINE LEVEL Control** This knob adjusts the level of the signal received at `LINE LEVEL IN`. **At the 3 o'clock position, it is at 100%**. Turning it further to the right amplifies the input signal beyond 100%. This amplification can be used to boost quiet, unnormalized audio, or to apply a saturation effect to the input signal. **2\. EURO LEVEL Control** This knob adjusts the volume of `EURO LEVEL IN`. **At fully clockwise, it is at 100%**. **3\. LINE LEVEL IN** The two input jacks can receive a stereo line-level signal. The left input is normalled to the right, so if no cable is plugged into the right input, the signal received by the left input is also passed to the right. **4\. EURO LEVEL IN** The two input jacks can receive a stereo Euro-level signal. The left input is normalled to the right, so if no cable is plugged into the right input, the signal received by the left input is also passed to the right. **5\. LINE LEVEL OUT** These are the line-level outputs of the Euro-level input signal. **6\. EURO LEVEL OUT** These are the Euro-level outputs of the line-level input signal. ## Reference Video Below is an official demo video from AI Synthesis. You can see it converting between +/-2V output from Ableton Live and +/-5V output from a modular synth. [YouTube video](https://www.youtube.com/watch?v=YQ8y0Gm_dpU) ## Technical Specifications - Width: 4HP - Depth: 22mm - Power consumption: 11mA +12V / 11mA -12V / 0mA 5V ## DIY Guide The DIY kit includes the panel, PCB, all components, power ribbon cable, and mounting screws. **This kit contains small surface-mount components (SMD parts), making the DIY difficulty level relatively high**. We recommend assembling with a fine-tipped soldering iron, solder wire of 0.6mm diameter or less, and a magnifying glass. AI Synthesis provides detailed DIY guides on their website. The guide linked below includes an assembly video along with step-by-step instructions with photos, making it a great resource for those new to DIY as well. - [AI026 Line I/O Interface Build Guide](https://aisynthesis.com/diy-eurorack-line-level-interface/) [YouTube video](https://www.youtube.com/watch?v=BoOC0zQwtx8) ### Assembly Impressions I, Takazudo, also assembled this kit myself. This DIY kit is primarily composed of SMD components, and it may be difficult to assemble unless you have considerable experience with through-hole soldering at a minimum. The number of parts is not too large, and there is sufficient space between components for the soldering iron, but you should approach it as an introduction to SMD soldering. ### モジュラーシンセのDIYとは？ モジュラーシンセサイザーのDIYについて詳しくご存じない方向けに、以下にDIYの導入的なコラムを用意しました。DIYについてご興味のある方、始めてみようと思う方は、是非ご参照いただければと。 [Guide Created: 2024/08/03 Synth DIY and DIY Kits An explanation of synth DIY and DIY kits. For those wondering what it means to DIY a synth and what DIY kits are, this article provides an introduction.](https://takazudomodular.com/en/guides/col001-diy-kits/) [Guide Created: 2024/08/07 Tools Needed for Synth DIY An explanation of the tools needed for synth DIY. What does soldering involve? What else do you need besides a soldering iron? A column for those with such questions.](https://takazudomodular.com/en/guides/col002-diy-tools/) また、組み立てに際して不明点や不安な点がございましたら、以下Takazudo Modularのdiscordチャンネルにてお気軽にご質問等、頂ければと思います。 [Support: Discord Server Guide Information about the Takazudo Modular Discord server. Includes how to join, channel descriptions, and community guidelines.](https://takazudomodular.com/en/s/discord/) --- About the Brand ## About AI Synthesis AI Synthesis is a modular synthesizer maker based in Portland, Oregon, USA. Their lineup consists of simple, highly practical, basic-type modules. They put real care into supporting users who want to learn and build their own gear — every module ships with a detailed DIY guide, and schematics and BOMs are published alongside it. Why not start your synth DIY journey with an AI Synthesis kit? - [AI Synthesis Website](https://aisynthesis.com/) - [X: AI Synthesis (@AIsynthesis)](https://x.com/AIsynthesis) - [Instagram: aisynthesis](https://www.instagram.com/aisynthesis/) - [Facebook: AI Synthesis](https://www.facebook.com/AISynthesis) - [YouTube: AI Synthesis](https://www.youtube.com/@AISynthesis) ![Logo: 電氣美術研究會](https://imgs.takazudomodular.com/images/p/denbi/revisions/production/r1-c35cb4eaf5f608733e69add54a5d951fcd8e67a5b52edf89e605c75dd0a0fd42/820w.webp) ## Bonus: Modular Accessory Set by 電氣美術研究會 (Denki Bijutsu Kenkyukai) Included In the hope that more people will get hands-on with modular synths, we have teamed up with 電氣美術研究會 to bundle a modular accessory set with this product. The contents vary by season — patch cables, power cables, a dress-nut sample set, a mono splitter, and more. The set is included with the product, so please give it a try! - [電氣美術研究會](https://ears-modular.com/) That concludes the introduction to the AI026 Line I/O Interface. [![AI Synthesis: AI026 Line I/O Interface (Aluminium Panel)](https://imgs.takazudomodular.com/images/p/line-io-white-0-front__og/revisions/production/r1-f7ddd97d5973e39b61f45db5eb8a31ee2c14abd7cd783df65ec03f4d9526a349/2000w.webp) AI Synthesis: AI026 Line I/O Interface (Aluminium Panel) 22,800 yen (tax & shipping included)](https://jp.mercari.com/shops/product/RvnWQHrb2fLHpBNHUTd3wg) [![AI Synthesis: AI026 Line I/O Interface (Black Panel)](https://imgs.takazudomodular.com/images/p/line-io-bk-0-front/revisions/production/r1-704e11aa5ce532f18f688ec3f212a36961e15b341bff43bcb01c9102958cd51b/1970w.webp) AI Synthesis: AI026 Line I/O Interface (Black Panel) 22,800 yen (tax & shipping included)](https://jp.mercari.com/shops/product/DiKCMdnH35HiLUAWVBANpL) [![AI Synthesis: AI026 Line I/O Interface (Aluminium Panel) DIY Kit](https://imgs.takazudomodular.com/images/p/diy-line-io-white-0-front/revisions/production/r1-5b34afd8afbeed2ebe6778a0555ba09aea2204fef0514fa51544cf436fbf27b8/2000w.webp) SOLD AI Synthesis: AI026 Line I/O Interface (Aluminium Panel) DIY Kit 15,800 yen (tax & shipping included) You can set up restock notifications on Mercari Shops.](https://jp.mercari.com/shops/product/gxXrBeZxL7zsEJZhhcVMx3) You can set up restock notifications on Mercari Shops. [![AI Synthesis: AI026 Line I/O Interface (Black Panel) DIY Kit](https://imgs.takazudomodular.com/images/p/diy-line-io-bk-0-front/revisions/production/r1-9df12c32e42102e9348f1580e5a81db57bd19710eafee10731f1535cb0c049a4/2000w.webp) AI Synthesis: AI026 Line I/O Interface (Black Panel) DIY Kit 15,800 yen (tax & shipping included)](https://jp.mercari.com/shops/product/thzFUKynMFSCSDrKZKcLqb) - [Buy this item via Buyee (International shipping)](https://buyee.jp/mercari/item/RvnWQHrb2fLHpBNHUTd3wg) - [Buy this item via Buyee (International shipping)](https://buyee.jp/mercari/item/DiKCMdnH35HiLUAWVBANpL) - [Buy this item via Buyee (International shipping)](https://buyee.jp/mercari/item/gxXrBeZxL7zsEJZhhcVMx3) - [Buy this item via Buyee (International shipping)](https://buyee.jp/mercari/item/thzFUKynMFSCSDrKZKcLqb) We hope you found this helpful. ## Product information (catalog snapshot) This is the catalog information published on the site when it was built. It is not a guarantee of live Mercari Shops inventory; check the purchase page for current availability. This page covers 4 catalog items (variants). Availability is per item and may differ between them. ### AI026 Line I/O Interface (Aluminium Panel) - Brand: AI Synthesis - Price: ¥22,800 (JPY) - Status: Listed for sale (on Mercari Shops) - Width: 4HP - Purchase page: - Purchase page: ### AI026 Line I/O Interface (Black Panel) - Brand: AI Synthesis - Price: ¥22,800 (JPY) - Status: Listed for sale (on Mercari Shops) - Width: 4HP - Purchase page: - Purchase page: ### AI026 Line I/O Interface (Aluminium Panel) DIY Kit - Brand: AI Synthesis - Price: ¥15,800 (JPY) - Status: Sold out - Width: 4HP - Purchase page: - Purchase page: ### AI026 Line I/O Interface (Black Panel) DIY Kit - Brand: AI Synthesis - Price: ¥15,800 (JPY) - Status: Listed for sale (on Mercari Shops) - Width: 4HP - Purchase page: - Purchase page: