Subwoofers Comparison: JBL SRX828SP vs MTX Audio 5512-44

Compare detailed specifications, side-by-side differences, verified user reviews, and buying recommendations to help you make the right choice.

JBL SRX828SP

JBL SRX828SP

  • Brand JBL
  • Detachable Grilles true
  • Nominal Output Power (RMS), W 1500
  • Maximal Output Power (RMS), W 2000
  • Audio Amplifier Output Power, W 1500
MTX Audio 5512-44

MTX Audio 5512-44

  • Brand MTX
  • Detachable Grilles YES
  • Nominal Output Power (RMS), W 400
  • Maximal Output Power (RMS), W 800
  • Audio Amplifier Output Power, W 400

Quick Verdict: Which One Should You Choose?

Deciding between the JBL SRX828SP and the MTX Audio 5512-44 depends on your available space, storage capacity goals, and everyday usage style:

Best For Maximum Capacity

JBL SRX828SP

Designed for large households, bulk grocery shoppers, and long-term storage where total cubic feet is the highest priority.

  • Superior Volume: Easily stores bulk meats, frozen garden harvests, and family packs.
  • Cold Retention: Keeps food frozen significantly longer in power outages.
  • Energy Efficiency: Top-opening design keeps dense cold air trapped inside.
Best For Compact Spaces

MTX Audio 5512-44

Ideal for apartments, offices, dorms, or secondary kitchen use where space efficiency and neat organization are paramount.

  • Space-Saving Footprint: Fits neatly under counters or in compact corners without intruding.
  • Upright Organization: Shelves allow you to organize and grab items without digging.
  • Everyday Convenience: Front-swing door provides quick, easy access anytime.

Specifications

Specification JBL SRX828SP MTX Audio 5512-44
Audio Performance
Impedance, Ohm 8 4
Sensitivity, DB 141 85.7
Crossover Frequency, Hz 35-120 —
Frequency Response, Hz 29-150 26 - 130
Connections
RCA Stereo Line Level Inputs (pair) No —
RCA LFE Inputs No —
Speaker Inputs (pair) No —
Speaker Outputs (pair) No —
Bi-amp No —
XLR Outputs (pair) 2 —
XLR Inputs (pair) 2 —
RCA Outputs No —
Controls
Subwoofer Phase Yes —
Volume Yes Surround Volume
Main Power Switch Yes —
Low-pass Filter Yes —
Dimensions
Weight, Kg/pounds 66/145 10.7 pounds
Dimensions (H X W X D), Cm/in 57.4 x 120 x 68/22.6 x 47.4 x 26.8 14.13 x 6.88 x 13.75 inches
Power
Audio Amplifier Output Power, W 1500 400
Maximal Output Power (RMS), W 2000 800
Nominal Output Power (RMS), W 1500 400
Driver
Port Placement front panel Back
Driver Placement front panel Center
Driver Size, In 18 12
Driver Quantity 2 1
Material
Enclosure Type vented —
Colors black Black
Woofer Composition polymer —
Body Material plywood —
General
Detachable Grilles Yes Yes
Amplification Type active —

Frequently Asked Questions

The main differences center around storage capacity, form factor, and convenience. The JBL SRX828SP provides extensive bulk storage capacity best suited for homes, garages, or basements needing deep freeze space. In contrast, the MTX Audio 5512-44 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 SRX828SP. If you have limited room in a kitchen, apartment, dorm, or office and prefer easy eye-level access to items, choose the MTX Audio 5512-44.