{"title":"Inputs \u0026 Outputs","description":"\u003cp\u003eModular plays well with modular - it does not always play well with the rest of the world. Whether you need to get line level in, headphone output or connect vintage stompboxes, we have solutions you might like.\u003c\/p\u003e","products":[{"product_id":"herzlich-sfxi-stereo-fx-adapter-for-13764","title":"Stereo FX Integrator \/ SFXI - 4hp - stereo Eurorack-to-instrument level conversion, instrument-to-Eurorack amplification, piezo and guitar pre-amp","description":"\u003cp\u003e\u003cstrong\u003eDon't fry your beloved pedals and rack effects!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou've been up all night in a bidding war on eBay to win a prized 80s rack effect unit - you can't wait to add some serious cheese to your tracks, and the sound of gated reverbs ring in your ears. Your heart pounds, and your pulse rises to crescendo as you win the auction! But there is one problem: your Eurorack system runs way too hot to simply plug straight into your stereo FX units. Your heart sinks, until you realize the solution is simple: the \u003cem\u003eSFXI.\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAttenuate and amplify signal levels between Eurorack and line\/instrument level in stereo\u003c\/li\u003e\n\u003cli\u003eSuper low noise, crosstalk and distortion performance thanks to souped-up Burr-Brown op-amps\u003c\/li\u003e\n\u003cli\u003eHigh-grade dual JFET input amplifiers gives you the sweet, clean gain you crave\u003c\/li\u003e\n\u003cli\u003eEnough gain to amplify electric guitars and piezos directly, and enough drive to work with even the most finicky vintage stompboxes\u003c\/li\u003e\n\u003cli\u003eAlso makes for a sweet stereo overdrive effect in a pinch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is the upgraded 2025 version of the \u003cem\u003eSFXI, \u003c\/em\u003ewhich expands on my original idea: a module that makes it totally straightforward to integrate equipment with different level expectations in a way that won't make anything fry. \u003c\/p\u003e\n\u003cp\u003eOperation is easy: plug your Eurorack level signal into the top row, attenuate it to the level where your outboard equipment won't spontaneously erupt in flames - high-performance output op-amps ensure that things run smoothly. The Return section can be used alone to amplify external instruments, like piezos and electric guitars, it can be used with Eurorack levels to create some exciting overdrive, but most importantly, the JFET input op-amps will amplify your line or instrument level device back up to Eurorack level with the least amount of fuss. \u003c\/p\u003e\n\u003cp\u003eThe scientists have been working overtime to produce this unit, and were fed extra rations of maize and millet gruel just to bring you this circuit. Every SFXI sold will grant the poor souls at Herzlich Labs another serving of maize and millet gruel. Please think of the poor scientists at Herzlich Labs.\u003c\/p\u003e","brand":"Herzlich Labs","offers":[{"title":"Default Title","offer_id":46687147622743,"sku":"","price":1299.0,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/9163\/9639\/files\/sfxi.jpg?v=1756812313"},{"product_id":"headphone-output-and-stereo-headphone-61726","title":"Line Level Output and Headphone Preamp - 2hp - stereo Eurorack to line-level output with volume control","description":"\u003cp\u003eYou've been plugging, patching and sweeping for hours, when it hits you: you're not actually listening to what you're making. Up until this point, the sad reality of modular has been that your ears won't hear the sweet sounds of your music, unless you invest in a bloated, oversized output module or a professional mixer. This ends now.\u003c\/p\u003e\n\u003cp\u003eThe Herzlich Micro Phone Out is an active headphone output in only 2hp - and it includes a very pleasantly tactile volume slider! Gone are the days where you would have to spend untold hp on useful and clean headphone outputs, now all that remains is beautiful, small simplicity.\u003c\/p\u003e\n\u003cp\u003eNo stereo signals to process? No problem. The left channel automatically works as a mono input with nothing plugged into the right channel. Forget everything else - this is the one and only output module you'll need!\u003c\/p\u003e\n","brand":"Herzlich Labs","offers":[{"title":"Default Title","offer_id":46860664701271,"sku":"","price":549.0,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/9163\/9639\/products\/il_fullxfull.5038146372_f96c_f611e9b1-4384-44b9-b3a0-84c9c49fe40c.jpg?v=1708305144"},{"product_id":"hi-z-preamp-and-external-input-amplifier-57924","title":"Hi-Z Preamp and External Input Amplifier for guitars, piezos and more - Herzlich Micro Hi-Z Preamp Input in 2hp for 3U Eurorack modular","description":"\u003cp\u003eIf you are at all like me, you have lots of very quiet sounds. Instrument level sounds, bit sniffer sounds, inductor coil sounds, sounds that are barely even there. We're talking electric guitars, piezos, contact microphones, pickups, anything you'd classify as a hi-z input - but Eurorack is loud! Eurorack signals are smoking hot! So how will you ever get the flimsy signal from your electric guitar into the glory of Eurorack hotness territory?\u003c\/p\u003e\n\u003cp\u003eThe solution is easy my friend, with the Micro Hi-Z preamp from Herzlich, you can crank that guitar all the way from amplification and into overdrive. Take your little piezo and get a good, strong signal out of it, or grab your preferred contact mic and get some sounds you never could have even dreamed of into your Eurorack, in just 2hp! That's almost as much as 1hp, which is nearly 0hp, which is no space at all. That's incredible!\u003c\/p\u003e\n\u003cp\u003eGot large, adult-sized human hands? No problem! Instead of a wobbly, shaky rotary potentiometer (bad, no good) the engineers and scientists at Herzlich Labs opted to install a vertical slide pot to control gain instead (good, very nice). Controlling your gain is smooth and easy, I may even go so far as to say pleasurable experience, but the truth is seldom pure and never simple, except this one time where it is.\u003c\/p\u003e\n\u003cp\u003eGo ahead, spend all that other hp you free up by buying the 2hp Hi-Z Preamp on some other stuff that will come in handy in your music production. Oh, and to the one bassist who inevitably reads this and wonders if it works for their electric bass guitar, too, even though I already said it works with electric guitars: yes, it does. You're welcome, bassist.\u003c\/p\u003e\n","brand":"Herzlich Labs","offers":[{"title":"Default Title","offer_id":46860667650391,"sku":"","price":499.0,"currency_code":"DKK","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/9163\/9639\/products\/il_fullxfull.5042823119_8dif.jpg?v=1708305425"},{"product_id":"0hp-headphone-output-passive-dual-69775","title":"Passive Dual Headphone Output - 0hp \/ 8hp 1U - stereo Eurorack input to dual TRS line level output","description":"\u003cp\u003eThe 0hp Headphone Output is a low-cost, no frills solution to a problem every beginner Eurorack enthusiast faces: how to get sound out of your machine in a manner that will not annihilate your hearing.\u003c\/p\u003e\n\u003cp\u003eThe unit accepts both mono and stereo inputs, and outputs the signal to two stereo TRS headphone jacks, where you can simply plug your desired listening apparatus (apparatii?) in and listen. If you plug only a mono signal in (in the Left channel) the signal is normalized to both the left and right channel, so you won't only be listening to a left channel. It's still mono, but at least you can hear something! With new high quality potentiometers and hardware, this solution will appeal to anyone seeking to get some audio for themselves and a friend in a hurry, either as a 0hp module or a 1U device in your favourite Eurorack synthesizer.\u003c\/p\u003e\n","brand":"Herzlich Labs","offers":[{"title":"1U w\/o enclosure","offer_id":47907538108759,"sku":"","price":349.0,"currency_code":"DKK","in_stock":true},{"title":"0hp w\/ enclosure","offer_id":47907538141527,"sku":"","price":429.0,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/9163\/9639\/files\/il_fullxfull.5870573764_o7q3.jpg?v=1711398467"}],"url":"https:\/\/www.herzlichlabs.com\/collections\/inputs-outputs.oembed","provider":"Herzlich Labs","version":"1.0","type":"link"}