AudioQuest Diamond Coax vs Ethereal MHX-ST3 9.8FT
Prices updated hourly. Check retailer for current availability.
Choosing between the AudioQuest Diamond Coax and Ethereal MHX-ST3 9.8FT? Both compete in the Optical / Coaxial segment. Here’s how they compare across the specs that matter most for your home theater.
Pricing for both models is currently unavailable. Check the retailer links below for current deals.
Looking at overall performance dimensions: The AudioQuest Diamond Coax scores higher in value.
These two Optical / Coaxial options trade wins across different dimensions. The right choice depends on which specs matter most for your room and listening preferences — review the detailed table below to decide.
For most home theaters, the AudioQuest Diamond Coax is the stronger choice — it leads in 1 of 1 scored dimensions. The Ethereal MHX-ST3 9.8FT makes more sense if budget is the primary constraint.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
AudioQuest Diamond Coax
Ethereal MHX-ST3 9.8FT
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Length | 2.46ft | 9.8ft |
| Signal | coaxial | optical |
| Connector | RCA | Toslink |
| Conductor | Silver | — |
| Gauge | — | — |
| Impedance | 75Ω | — |
| Slim Profile | No | Yes |
| Mini Adapter | No | No |
Key Differences
- Length: AudioQuest Diamond Coax at 2.46ft vs Ethereal MHX-ST3 9.8FT at 9.8ft
- Signal: AudioQuest Diamond Coax at coaxial vs Ethereal MHX-ST3 9.8FT at optical
- Connector: AudioQuest Diamond Coax at RCA vs Ethereal MHX-ST3 9.8FT at Toslink
- Conductor: AudioQuest Diamond Coax at Silver vs Ethereal MHX-ST3 9.8FT at —
- Impedance: AudioQuest Diamond Coax at 75Ω vs Ethereal MHX-ST3 9.8FT at —. Lower impedance draws more current from your receiver. A 4-ohm speaker needs a receiver rated for that load, or you risk thermal shutdown during loud passages.
Specifications sourced from manufacturer datasheets and verified against retailer listings. Prices updated hourly from authorized retailers. Scoring uses our open methodology — products are never ranked, promoted, or suppressed based on affiliate commission rates.
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