{"product_id":"bobs-devices-sky-30s-step-up-transformer","title":"Bob's Devices SKY 30-S Step-Up Transformer","description":"\u003ch1\u003eBob's Devices SKY 30-S Step-Up Transformer\u003c\/h1\u003e\n\u003ch3\u003eSwitchable 1:15 \/ 1:30 MC step-up with longer core and improved winding. Handcrafted in the USA\u003c\/h3\u003e\n\u003cp\u003eBob's Devices SUTs are hand-made, one at a time, using point-to-point wiring and are individually tested. No circuit boards are used. The 30-S runs passively, adding no noise, and is designed for highly resolving analog systems.\u003c\/p\u003e\n\u003cp\u003eThe SKY 30-S is an upgrade from the SKY 30. It is heavier and has better sound. Says Bob's Devices, \"It was hard to upgrade the SKY 30. We tried many combinations and found that by increasing the length of the core, we could change the winding scheme just a bit. You will 'hear the magic.\"\u003c\/p\u003e\n\u003cp\u003eThe SKY 30-S has the same ratios as the original: 1:15 in low and 1:30 in high. You will hear improved bandwidth and dynamics, and enjoy the same black powder-coated cast-aluminum enclosure with laser-etched lettering.\u003c\/p\u003e\n\u003ch4\u003eSUT with MM Phono Vs. MC Phono\u003c\/h4\u003e\n\u003cp\u003eMost moving-coil phono preamps add an extra gain stage to boost the tiny MC signal up to moving-magnet level, but that almost always raises noise and compromises sound. That's a lot of gain needed on a very delicate signal.\u003c\/p\u003e\n\u003cp\u003eA Bob’s Devices step-up transformer (SUT) avoids those trade-offs: it’s passive, silent, and purpose-built to match your specific MC cartridge to any MM phono input.\u003c\/p\u003e\n\u003cp\u003eInstead of dealing with switches, jumpers, and noise level inside an all-in-one preamp, you get the cleanest signal path, better cartridge matching, and a lower noise floor.\u003c\/p\u003e\n\u003cp\u003eIf you want your MC cartridge to deliver everything it’s capable of—clarity, dynamics, and a quieter background—you’ll get it with a dedicated Bob’s Devices SUT.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ch4\u003eTransformers\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eLamination\/Core:\u003c\/strong\u003e 80% nickel mu-metal laminations, processed for low-level performance\u003c\/p\u003e\n\u003ch4\u003eElectrical\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eStep-Up Ratios (Low, High):\u003c\/strong\u003e 1:15, 1:30\u003c\/p\u003e\n\u003ch4\u003eConnectivity\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eInputs\/Outputs:\u003c\/strong\u003e Choose from RCA and XLR\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrounding:\u003c\/strong\u003e Ground post with Ground\/Lift toggle\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSwitching Hardware:\u003c\/strong\u003e Premium silver-contact toggles for Gain and Ground\u003c\/p\u003e\n\u003ch4\u003eConstruction\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Hand-polished black powder-coated cast-aluminum; laser-etched labeling\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWiring:\u003c\/strong\u003e Point-to-point; no PCBs\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacture:\u003c\/strong\u003e Hand-built in the USA\u003c\/p\u003e","brand":"Bob's Devices","offers":[{"title":"RCA to RCA","offer_id":51687131250872,"sku":"BD-SKY30S-RCA","price":1650.0,"currency_code":"USD","in_stock":true},{"title":"XLR to XLR","offer_id":51687131283640,"sku":"BD-SKY30S-XLR","price":1850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1564\/1247\/files\/935314_97ade2aef33343c9884061dba1132202_mv2.jpgcopy_77654c9c-ce3a-4b3c-8be4-c1682bacb486.jpg?v=1756312966","url":"https:\/\/upscaleaudio.pro\/products\/bobs-devices-sky-30s-step-up-transformer","provider":"Upscale Audio","version":"1.0","type":"link"}