The Specs and manufacturers description
The Auralex SubDude-II™ Subwoofer Isolation Pad is a lower profile version of our classic SubDude™, and is perfect for small subwoofers in home theaters and hi-fi systems. This patented, isolation platform features a stylish velour covering over an inert structural layer that floats on a cushion of acclaimed Auralex Platfoam™. This carefully engineered solution allows the true sound of your sub to come through by negating resonance artifacts.
Based on the same Auralex technology that famous recording artists use on-stage and in the studio, this carefully chosen combination of specialized materials instantly diminishes structural vibrations, resulting in cleaner and tighter bass, reduced coloration and a more accurate low-frequency response. The SubDude-II™ is an incredibly effective isolation platform that instantly improves your subwoofer’s performance.
The review
Test Environment:
I measured the subwoofer in the same position twice: once with the Subdude and once without. For both setups, I conducted 8 sweeps using a acoustic timing reference, followed by Cross Correlate Align, and then Vector Average to extract the pure measurement signal.
Result:
The Subdude appears to offer a MINIMAL (no significant) advantage in my home setup:
Considerations:
Investment Consideration:
My Conclusion:
Since the improvement in sound quality is too marginal for my setup, I will send it back. Though I will keeping looking for a solution that makes my floor stop vibrating.
Description
The Auralex SubDude-II™ Subwoofer Isolation Pad is a lower profile version of our classic SubDude™, and is perfect for small subwoofers in home theaters and hi-fi systems. This patented, isolation platform features a stylish velour covering over an inert structural layer that floats on a cushion of acclaimed Auralex Platfoam™. This carefully engineered solution allows the true sound of your sub to come through by negating resonance artifacts.
Based on the same Auralex technology that famous recording artists use on-stage and in the studio, this carefully chosen combination of specialized materials instantly diminishes structural vibrations, resulting in cleaner and tighter bass, reduced coloration and a more accurate low-frequency response. The SubDude-II™ is an incredibly effective isolation platform that instantly improves your subwoofer’s performance.

Benefits:
| Technical Details
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The review
Test Environment:
- Sonarworks Measurement Microphone with cal file
- Steinberg UR22 Mk2 Interface
- Windows 11 PC + REW
- KEF KC92 Subwoofer
- Auralex Subdude
I measured the subwoofer in the same position twice: once with the Subdude and once without. For both setups, I conducted 8 sweeps using a acoustic timing reference, followed by Cross Correlate Align, and then Vector Average to extract the pure measurement signal.
Result:
The Subdude appears to offer a MINIMAL (no significant) advantage in my home setup:
- ~120 Hz: 2dB reduction (possibly filtering resonance from the wooden floor)
- other than that, the benefits not noticable
Considerations:
- Maybe the Subdude is not entirely useless and might cause more improvement the "worse" the paired subwoofer is. I think the KEF KC92 with Force Cancelling already minimizes resonances in the enclosure effectively,
- Simpler, less rigid subwoofers with configurations like 1x Front- or Downfiring might experience noticeable improvements above 100 Hz with the Subdude, maybe even below that.
- Physically, achieving improvements below 100 Hz with a thin foam layer and a fabric-covered wooden board is limited generally speaking.
- Self-Test: You can easily check if your subwoofer is strongly resonating by touching it during a normal music track to see if the enclosure vibrates. Good subs should never do this.
Investment Consideration:
- €70 spent on the Subdude might be better invested in a empirically superior subwoofer.
- The Subdude is not a magic solution and primarily serves as a stopgap with some placebo effect.
My Conclusion:
Since the improvement in sound quality is too marginal for my setup, I will send it back. Though I will keeping looking for a solution that makes my floor stop vibrating.
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