{"product_id":"relab-color-drive","title":"Relab Color Drive","description":"\u003ch2\u003eSaturation Built From a Real-Time Circuit\u003c\/h2\u003e\n\u003cp\u003eColor Drive doesn’t stack algorithms or approximate “warmth.” It solves the Relab 176 tube stage, with the input transformer, 6BC8 variable-gain tube, calibration bias, and output transformer, as a single, living circuit.\n\n\u003c\/p\u003e\n\u003cp\u003eThat’s why it behaves like hardware: every move changes the way the whole system responds.\n\n\u003c\/p\u003e\n\u003cp\u003eIt’s hardware logic, in software form.\n\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHarmonics that feel alive, not static Because the full circuit is solved in real time, density, tone, and transient shape interact exactly like they do in hardware.\u003c\/li\u003e\n\u003cli\u003eSubtle or bold – always musical From barely-there warmth to real tube crunch, it can tuck transients, add harmonic weight, and give instruments presence without pushing them forward in level.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you’ve been waiting for a saturator that responds like real hardware, this is the one that finally does it.\n\n\u003c\/p\u003e\n\u003ch2\u003eDrive - The Heart of the Tube Stage\u003c\/h2\u003e\n\u003cp\u003eWhen you increase the Drive you’re not just adding “more effect”- you’re pushing an accurate 6BC8 tube (and switchable output transformer) model inside a complete analog circuit.\n\n\u003c\/p\u003e\n\u003cp\u003eHarmonics build naturally, transients round in a controlled way, and the signal picks up that understated weight and glow you normally only get from real hardware.\n\n\u003c\/p\u003e\n\u003ch2\u003eSwitch in the Transformer, Change the Harmonics\u003c\/h2\u003e\n\u003cp\u003eSwitching to transformer coupling inserts the Relab 176’s output transformer back into the signal path, completing the full analog chain.\n\n\u003c\/p\u003e\n\u003cp\u003eWith Calibration centered, the stage produces mostly odd-order harmonics, adding focus, punch, and that familiar hardware solidity to a mix.\n\n\u003c\/p\u003e\n\u003ch2\u003eBias the Tube \u0026amp; Tune the Harmonics\u003c\/h2\u003e\n\u003cp\u003eCalibration adjusts the tube’s bias point, letting you introduce just the right amount of even-order harmonics when you need warmth or contour.\n\n\u003c\/p\u003e\n\u003cp\u003eEspecially when paired with the output transformer, it becomes a precise way to shape the harmonic mix. You can create subtle, musical shifts that give you real control over how the color sits in a track.\n\n\u003c\/p\u003e\n\u003ch2\u003eModern Controls Shape What the Circuit Hears\u003c\/h2\u003e\n\u003cp\u003eThese controls let you decide how the signal enters the tube stage, not just how much.\n\n\u003c\/p\u003e\n\u003cp\u003eThe low-end crossover can route the deep bass around the drive circuit so you keep all the weight without muddying the harmonics.\n\n\u003c\/p\u003e\n\u003cp\u003eAnd the pre\/post tilt or high-shelf emphasis filters let you steer exactly which frequencies push the tube harder.\n\n\u003c\/p\u003e\n\u003cp\u003eTogether they give you precise, musical control over the harmonic profile before any Drive is added.\n\n\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHardware-Accurate Saturation Behavior Every control affects the whole system, so tone, dynamics, and harmonics interact like real analog hardware.\u003c\/li\u003e\n\u003cli\u003eMusical, Responsive Harmonics Harmonics evolve naturally with signal level—never static—preserving realistic density, tone, and transient shape.\u003c\/li\u003e\n\u003cli\u003eDrive Control Based on a True Tube Stage Increasing Drive pushes an accurate 6BC8 tube model, producing controlled transient rounding, harmonic weight, and authentic tube glow.\u003c\/li\u003e\n\u003cli\u003eSwitchable Output Transformer Engaging the transformer completes the analog chain, emphasizing odd-order harmonics for added punch, focus, and solidity.\u003c\/li\u003e\n\u003cli\u003eTube Bias (Calibration) Control Adjusts the tube’s bias point to blend in even-order harmonics, allowing precise shaping from clean focus to warm contour.\u003c\/li\u003e\n\u003cli\u003eAdvanced Input Shaping Controls Low-end crossover preserves bass clarity, while tilt and high-shelf filters let you choose which frequencies drive the tube harder for targeted coloration.\u003c\/li\u003e\n\u003cli\u003eReal-Time Circuit Modeling The entire Relab 176 tube stage (input transformer, 6BC8 tube, bias, output transformer) is solved as one continuous circuit, not stacked algorithms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem Requirements\u003c\/h2\u003e\n\u003cdiv style=\"background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;padding:12px 14px;margin:8px 0;\"\u003e\n\u003cdiv style=\"font-weight:700;font-size:13px;color:#1f2937;margin-bottom:10px;\"\u003eMac\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:6px;\"\u003e\n\u003cspan style=\"font-size:13px;color:#374151;margin-right:20px;white-space:nowrap;\"\u003e\u003cspan style=\"color:#6b7280;\"\u003eCPU \u003c\/span\u003eApple Silicon M1 or newer\u003c\/span\u003e\u003cspan style=\"font-size:13px;color:#374151;margin-right:20px;white-space:nowrap;\"\u003e\u003cspan style=\"color:#6b7280;\"\u003eRAM \u003c\/span\u003e8 GB\u003c\/span\u003e\u003cspan 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0;display:inline-block;\"\u003eAU\u003c\/span\u003e\u003cspan style=\"background:#e0e7ff;color:#3730a3;font-size:11px;font-weight:700;padding:2px 8px;border-radius:8px;margin:2px 3px 2px 0;display:inline-block;\"\u003eAAX\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"background:#f3f4f6;color:#374151;font-size:11px;font-weight:700;padding:2px 8px;border-radius:8px;margin:2px 3px 2px 0;display:inline-block;\"\u003e64_bit\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;padding:12px 14px;margin:8px 0;\"\u003e\n\u003cdiv style=\"font-weight:700;font-size:13px;color:#1f2937;margin-bottom:10px;\"\u003eWindows\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:6px;\"\u003e\n\u003cspan style=\"font-size:13px;color:#374151;margin-right:20px;white-space:nowrap;\"\u003e\u003cspan style=\"color:#6b7280;\"\u003eCPU \u003c\/span\u003e Intel Core i7 (8th-gen+) or AMD Ryzen 5 (3000-series+) with AVX2 support\u003c\/span\u003e\u003cspan style=\"font-size:13px;color:#374151;margin-right:20px;white-space:nowrap;\"\u003e\u003cspan style=\"color:#6b7280;\"\u003eRAM \u003c\/span\u003e8 GB\u003c\/span\u003e\u003cspan style=\"font-size:13px;color:#374151;margin-right:20px;white-space:nowrap;\"\u003e\u003cspan style=\"color:#6b7280;\"\u003eDisk \u003c\/span\u003e0 GB\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px;color:#374151;margin-bottom:6px;\"\u003e\n\u003cspan style=\"color:#6b7280;\"\u003eOS version \u003c\/span\u003eWindows 10 and up (64-bit)\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px;margin-bottom:8px;\"\u003e\n\u003cspan style=\"color:#6b7280;\"\u003eInternet \u003c\/span\u003e\u003cspan style=\"color:#6b7280;font-weight:600;\"\u003eNot required\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:4px;\"\u003e\n\u003cspan style=\"background:#e0e7ff;color:#3730a3;font-size:11px;font-weight:700;padding:2px 8px;border-radius:8px;margin:2px 3px 2px 0;display:inline-block;\"\u003eVST-3\u003c\/span\u003e\u003cspan style=\"background:#e0e7ff;color:#3730a3;font-size:11px;font-weight:700;padding:2px 8px;border-radius:8px;margin:2px 3px 2px 0;display:inline-block;\"\u003eAAX\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"background:#f3f4f6;color:#374151;font-size:11px;font-weight:700;padding:2px 8px;border-radius:8px;margin:2px 3px 2px 0;display:inline-block;\"\u003e64_bit\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Relab","offers":[{"title":"Default Title","offer_id":53796501455162,"sku":"1432-4260","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/2078\/1882\/files\/Color-Drive-GUI.jpg?v=1785081850","url":"https:\/\/udiaudio.com\/products\/relab-color-drive","provider":"UDi Audio","version":"1.0","type":"link"}