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Noble Audio FoKus Rex5 vs Cambridge Audio Melomania A100

Noble Audio FoKus Rex5 (#1, best overall) vs Cambridge Audio Melomania A100 (#5, best value): in our Earbuds for Studio scoring the Noble Audio FoKus Rex5 totals 9.1/10 and the Cambridge Audio Melomania A100 8.4/10.

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TopsFive comparison scores

9.1 / 10
Noble Audio FoKus Rex5
8.3 / 10
Cambridge Audio Melomania A100

Side by side

Noble Audio FoKus Rex5Cambridge Audio Melomania A100
Drivers5-driver tribrid (dynamic + planar + 3x BA)—
Frequency Response20Hz-40kHz—
CodecsLDAC (24-bit/96kHz), aptX AdaptiveaptX Lossless, aptX Adaptive, LDAC, AAC, SBC
EQ10-band parametric stored on-device7-band adjustable in-app
Driver—10mm custom recycled Neodymium
Amplification—Class A/B (Cambridge Audio hi-fi derived)
Bluetooth—5.4
Battery—6.5h ANC on / 11h ANC off / 39h total
Water Resistance—IPX5
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How they differ in real use

Built from our earbuds studio scoring, each product's published specifications, and verified owner feedback — not hands-on testing.

Both the Noble Audio FoKus Rex5 and the Cambridge Audio Melomania A100 made our Top 5 Earbuds for Studio, at #1 (best overall) and #5 (best value). Four balanced armature drivers deliver reference-grade resolution, closest to wired IEM accuracy in a TWS. Class A/B amplification with aptX Lossless and LDAC, now discounted to $99, exceptional value for budget-conscious producers needing hi-fi codec support.

We score earbuds for studio on Accuracy (40%), Detail Resolution (25%), Codec Support (15%), Distortion (10%) and Value (10%). On that basis the Noble Audio FoKus Rex5 totals 9.1 out of 10 and the Cambridge Audio Melomania A100 8.4. The widest gap is Accuracy, where the Noble Audio FoKus Rex5 scores 9.5 against 8 for the Cambridge Audio Melomania A100: flat, revealing frequency response. Detail Resolution also separates them: 10 for the Noble Audio FoKus Rex5 versus 8 for the Cambridge Audio Melomania A100. The Cambridge Audio Melomania A100 claws back ground on Value and Codec Support.

On paper, the specifications that actually differ: Codecs: LDAC (24-bit/96kHz), aptX Adaptive on the Noble Audio FoKus Rex5 versus aptX Lossless, aptX Adaptive, LDAC, AAC, SBC on the Cambridge Audio Melomania A100; EQ: 10-band parametric stored on-device on the Noble Audio FoKus Rex5 versus 7-band adjustable in-app on the Cambridge Audio Melomania A100.

Check current pricing at the merchant links below. Owners praise the Noble Audio FoKus Rex5 for 5-driver tribrid configuration and microscope-level detail; the most common complaint is no TWS replaces wired monitors. Owners praise the Cambridge Audio Melomania A100 for class A/B amplification (hi-fi derived, unique among TWS) and aptX Lossless + LDAC + aptX Adaptive codecs; the most common complaint is LDAC cuts battery life to ~4 hours per earbud.

Noble Audio FoKus Rex5

  • 5-driver tribrid configuration
  • Microscope-level detail
  • 10-band parametric EQ stored on-device
  • Resolution approaching wired IEMs
  • No TWS replaces wired monitors
  • Expensive
  • Short battery (5-7h)

Cambridge Audio Melomania A100

  • Class A/B amplification (hi-fi derived, unique among TWS)
  • aptX Lossless + LDAC + aptX Adaptive codecs
  • Hybrid ANC with 6-microphone system
  • 39 hours total battery life
  • LDAC cuts battery life to ~4 hours per earbud
  • ANC not class-leading vs Sony/Bose
  • Less known brand

Which should you buy?

The Noble Audio FoKus Rex5 is the better fit for reference checks and client presentations; it is the higher-scoring pick here, chiefly for Accuracy and Detail Resolution. The Cambridge Audio Melomania A100 is the better fit for value-seeking professionals and those wanting hi-fi codec support on a budget, and the stronger choice if Value and Codec Support matter more to you than the overall score. The Noble Audio FoKus Rex5 is a poor fit for real-time recording monitoring; the Cambridge Audio Melomania A100 is a poor fit for maximum resolution seekers.

Choose the Noble Audio FoKus Rex5 if

  • Reference checks
  • Client presentations
  • Mix translation to consumer devices

Skip it if

  • Real-time recording monitoring
  • Budget studios
Check price at Amazon

Choose the Cambridge Audio Melomania A100 if

  • Value-seeking professionals
  • Those wanting hi-fi codec support on a budget
  • Cambridge Audio fans

Skip it if

  • Maximum resolution seekers
  • Those needing best-in-class ANC
Check price at Amazon

Common questions

Is the Noble Audio FoKus Rex5 better than the Cambridge Audio Melomania A100?

In our Earbuds for Studio ranking the Noble Audio FoKus Rex5 scores higher overall, 9.1 to 8.4, with the biggest advantage in Accuracy. The Cambridge Audio Melomania A100 is stronger on Value and Codec Support, so it is the better pick if those matter most to you.

What is the main difference between the Noble Audio FoKus Rex5 and the Cambridge Audio Melomania A100?

The headline spec difference is Codecs: LDAC (24-bit/96kHz), aptX Adaptive on the Noble Audio FoKus Rex5 versus aptX Lossless, aptX Adaptive, LDAC, AAC, SBC on the Cambridge Audio Melomania A100. In use, the gap that matters most is Accuracy (9.5 vs 8 in our scoring): flat, revealing frequency response.

Check price: Noble Audio FoKus Rex5Check price: Cambridge Audio Melomania A100