Not sure which mastering service fits your track? Start with a Free Premaster Check. Send 30 seconds of your premaster and one reference track. I'll recommend the best mastering option for your release. Hybrid Stem Mastering gives you more control than stereo mastering without going back to a full mix. By working from grouped stems, we can refine energy, balance and impact in the areas that matter most — especially low-end, drums, vocals and musical space. This is the right choice when your mix is close, but not fully locked. You send grouped stems plus references, and we shape the record into a tighter, deeper and more release-ready master with stronger translation for both club systems and streaming platforms. Key Information• Package: Choose the stem structure that fits your project• Turnaround: Standard 5–7 business days / Priority 3–5 business days / Express 2 business days• Revisions: Unlimited for 7 days (same stem package; new export = new version)• For: Artists whose mix is close, but needs more control than stereo mastering can offer• You send: Grouped stems + 1–2 references + release goal + loudness preference After purchase, you’ll receive the brief and secure upload link by email.Turnaround starts once we receive your files and completed brief.