Power Sound Audio TV21-IPAL vs Velodyne DEEP-BLUE
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Choosing between the Power Sound Audio TV21-IPAL and Velodyne DEEP-BLUE? Both compete in the Subwoofer segment. Here’s how they compare across the specs that matter most for your home theater.
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Looking at overall performance dimensions: The Power Sound Audio TV21-IPAL scores higher in value, audio quality, volume/SPL. The Velodyne DEEP-BLUE leads in form factor, room fit.
Key subwoofer differences include driver sizes of 21" vs 8", and bass-reflex vs sealed enclosure designs, and the Power Sound Audio TV21-IPAL digs deeper at 12 Hz (-3dB) vs 18 Hz. Larger drivers move more air, producing deeper bass with less effort. A 15-inch driver reaches lower than a 10-inch at the same power, but the cabinet is proportionally larger. Sealed subs are tighter and more accurate, better for music. Ported subs play louder and dig deeper for the same driver/amp, better for movies. Some subs offer both via a removable port plug. A lower number means deeper bass — the rumble in explosions, the weight of a pipe organ. Below 20 Hz you feel it more than hear it.
These two Subwoofer 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 Power Sound Audio TV21-IPAL is the stronger choice — it leads in 3 of 5 scored dimensions. The Velodyne DEEP-BLUE makes more sense if you prioritize the 2 dimensions where it leads.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Power Sound Audio TV21-IPAL
Velodyne DEEP-BLUE
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Driver Size | 21" | 8" |
| RMS Watts | 4000W | 300W |
| -3dB Extension | 12Hz | 18Hz |
| -6dB Extension | — | — |
| Phase Control | No | No |
| LFE Input | No | Yes |
| Line Input | Yes | Yes |
| XLR Input | Yes | No |
| App Control | No | No |
| Passive | No | No |
| Enclosure | bass-reflex | sealed |
Key Differences
- RMS Watts: Power Sound Audio TV21-IPAL at 4000W vs Velodyne DEEP-BLUE at 300W. More sustained power means the sub maintains authority at high volumes without compression. RMS matters more than peak — it's the power available all the time, not just in bursts.
- Enclosure: Power Sound Audio TV21-IPAL at bass-reflex vs Velodyne DEEP-BLUE at sealed. Sealed subs are tighter and more accurate, better for music. Ported subs play louder and dig deeper for the same driver/amp, better for movies. Some subs offer both via a removable port plug.
- Driver Size: Power Sound Audio TV21-IPAL at 21" vs Velodyne DEEP-BLUE at 8". Larger drivers move more air, producing deeper bass with less effort. A 15-inch driver reaches lower than a 10-inch at the same power, but the cabinet is proportionally larger.
- -3dB Extension: Power Sound Audio TV21-IPAL at 12Hz vs Velodyne DEEP-BLUE at 18Hz. A lower number means deeper bass — the rumble in explosions, the weight of a pipe organ. Below 20 Hz you feel it more than hear it.
- LFE Input: Power Sound Audio TV21-IPAL at No vs Velodyne DEEP-BLUE at Yes
Which Should You Choose?
Choose Power Sound Audio TV21-IPAL if you want:
- + larger 21" driver
- + better rms watts — more sustained power means the sub maintains authority at high volumes without compression
- + better -3db extension — a lower number means deeper bass — the rumble in explosions, the weight of a pipe organ
See Where These Rank
Check our editorial rankings to see how Power Sound Audio TV21-IPAL and Velodyne DEEP-BLUE compare to the rest of the field.
Best Subwoofer RankingsRelated Calculators
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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