Compare detailed specifications, side-by-side differences, verified user reviews, and buying recommendations to help you make the right choice.
Deciding between the JBL LSR310S and the Rockford P3D4-12 depends on your available space, storage capacity goals, and everyday usage style:
Designed for large households, bulk grocery shoppers, and long-term storage where total cubic feet is the highest priority.
Ideal for apartments, offices, dorms, or secondary kitchen use where space efficiency and neat organization are paramount.
| Specification | JBL LSR310S | Rockford P3D4-12 |
|---|---|---|
| Material | ||
| Enclosure Type | vented | — |
| Colors | black | Black |
| Woofer Composition | polymer | — |
| Body Material | MDF | — |
| Power | ||
| Audio Amplifier Output Power, W | 100 | 600 |
| Maximal Output Power (RMS), W | 200 | 1200 |
| Nominal Output Power (RMS), W | 200 | 600 |
| Driver | ||
| Port Placement | front panel | Back |
| Driver Placement | down firing | Center |
| Driver Size, In | 10 | 12 |
| Driver Quantity | 1 | 1 |
| Connections | ||
| Speaker Inputs (pair) | No | — |
| Speaker Outputs (pair) | No | — |
| Bi-amp | No | — |
| XLR Outputs (pair) | 1 | — |
| XLR Inputs (pair) | 1 | — |
| RCA Outputs | No | — |
| RCA Stereo Line Level Inputs (pair) | No | — |
| RCA LFE Inputs | No | — |
| General | ||
| Detachable Grilles | No | Yes |
| Amplification Type | active | Yes |
| Audio Performance | ||
| Crossover Frequency, Hz | 80-120 | — |
| Frequency Response, Hz | 27-200 | — |
| Impedance, Ohm | 4 | — |
| Sensitivity, DB | 113 | — |
| Controls | ||
| Main Power Switch | Yes | — |
| Low-pass Filter | No | — |
| Subwoofer Phase | Yes | — |
| Volume | Yes | Surround Volume |
| Dimensions | ||
| Weight, Kg/pounds | 15.6/34.3 | 8.8 pounds |
| Dimensions (H X W X D), Cm/in | 44.8 x 38.1 x 39.8/17.6 x 15 x 15.6 | 14.5 x 14.5 x 10 inches |
The main differences center around storage capacity, form factor, and convenience. The JBL LSR310S provides extensive bulk storage capacity best suited for homes, garages, or basements needing deep freeze space. In contrast, the Rockford P3D4-12 offers a compact upright design that fits into smaller spaces with convenient shelf organization.
Chest-style freezers generally excel in thermal efficiency because cold air naturally settles at the bottom and does not escape when the lid is lifted. Compact upright models have lower total kilowatt-hour usage simply due to their smaller cubic volume, making both designs efficient for their respective intended purposes.
Both products are available through official brand stores and authorized retailers with full manufacturer warranties and fast delivery options. Click the "Check Best Price" buttons in the comparison cards above to view today's latest promotions, official deals, and current availability.
Measure your available floor clearance first. If you have open space in a garage, basement, or utility room and want to freeze items in bulk, choose the JBL LSR310S. If you have limited room in a kitchen, apartment, dorm, or office and prefer easy eye-level access to items, choose the Rockford P3D4-12.
