{"product_id":"doepfer-a-138a-mixer-linear","title":"Doepfer A-138a Mixer linear","description":"\u003cp\u003e\u003ciframe src=\"\/\/www.youtube.com\/embed\/JnZQv0DGojU?pp=ygUbRG9lcGZlciBBLTEzOGEgTWl4ZXIgbGluZWFy\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp data-start=\"3985\" data-end=\"4085\"\u003e\u003cstrong data-start=\"3985\" data-end=\"4085\"\u003eDoepfer A-138a Linear Mixer – A simple but essential signal summing tool for modular synthesists\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"4087\" data-end=\"4378\"\u003eThe Doepfer A-138a is a four-channel linear mixer designed to combine either audio signals or control voltages in a Eurorack modular system. Despite its simplicity, it plays a crucial role in any patch, allowing you to sum multiple sources into one output with clean and predictable results.\u003c\/p\u003e\n\u003cp data-start=\"4380\" data-end=\"4759\"\u003eEach of the four inputs features an individual level knob, enabling precise control over the mix. Because the mixer operates with linear response curves, it’s particularly well-suited for CV mixing—ensuring that modulations blend proportionally without distortion. Of course, it also works beautifully for audio, providing clean and transparent signal summing without coloration.\u003c\/p\u003e\n\u003cp data-start=\"4761\" data-end=\"4778\"\u003e\u003cstrong data-start=\"4761\" data-end=\"4778\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"4780\" data-end=\"5040\"\u003e\n\u003cli data-start=\"4780\" data-end=\"4838\"\u003e\n\u003cp data-start=\"4782\" data-end=\"4838\"\u003e4 linear input channels with individual level controls\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4839\" data-end=\"4890\"\u003e\n\u003cp data-start=\"4841\" data-end=\"4890\"\u003eIdeal for mixing control voltages (CV) or audio\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4891\" data-end=\"4942\"\u003e\n\u003cp data-start=\"4893\" data-end=\"4942\"\u003eClean, neutral summing with no added coloration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4943\" data-end=\"4984\"\u003e\n\u003cp data-start=\"4945\" data-end=\"4984\"\u003e8 HP wide – compact and rack-friendly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4985\" data-end=\"5040\"\u003e\n\u003cp data-start=\"4987\" data-end=\"5040\"\u003ePassive design with simple, effective functionality\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"5042\" data-end=\"5225\"\u003eWhether you're blending modulation sources like LFOs and envelopes or mixing multiple audio oscillators, the A-138a is a utility workhorse that belongs in every serious modular setup.\u003c\/p\u003e","brand":"Doepfer","offers":[{"title":"Default Title","offer_id":53125647106387,"sku":"A-138a","price":66.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1043\/4052\/1299\/files\/doepfer-a-138a-mixermodule-linear-1-syn0003080-000.jpg?v=1772280902","url":"https:\/\/www.voltmusicstore.com\/products\/doepfer-a-138a-mixer-linear","provider":"Volt Music Store","version":"1.0","type":"link"}