PBX DSP8 vs Subwoofer Box Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PBX DSP8
This application provides full control over an 8-channel audio processor for fine-tuning car sound systems. It features a 32-band equalizer, crossover network, and time alignment for a customized listening experience. Hardware is required and sold separately.
- Control up to 8 input and 8 output channels
- 32-Band Equalizer
- Crossover Network
- Time Alignment
- Customizable in-car audio experience
- Fully integrated app control
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Take control of your sound with the PowerBass PBX-DSP8 Digital Signal Processor. Control up to 8 channels of input and 8 channels of output with our fully integrated App. The PBX-DSP8 allows you to fine tune your audio system to your preference using our built in 32-Band Equalizer, Crossover Network, and Time Alignment allowing you full custom control of your in car musical experience. Hardware required, PBX-DSP8 Digital Signal Processor sold separately.
Subwoofer Box Pro
Design custom car audio subwoofer enclosures with precision. This tool offers smart recommendations, real-time calculations, and visual previews for sealed, ported, and bandpass designs. Generate accurate cut lists for your builds.
- Enclosure design for sealed, ported, bandpass, 4th/6th order
- Smart Advisor for optimized enclosure recommendations
- Real-time volume, port tuning, and velocity calculations
- Interactive sliders for dimension adjustments
- Speaker database and custom speaker entry
- 2D cutaway and 3D visual previews
- Generate cut lists and PDF export
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Subwoofer Box Pro is the most accurate enclosure design tool available for car audio — built for enthusiasts, installers, and DIY builders who refuse to guess. Whether you're dialing in a tight sealed enclosure for daily driving or engineering a 6th order bandpass for maximum SPL, Subwoofer Box Pro handles every calculation so you can focus on what matters: the build. Design sealed, ported, bandpass, 4th order, and 6th order enclosures with confidence. SMART ADVISOR The built-in Smart Advisor analyzes your subwoofer's Thiele/Small parameters and automatically recommends two optimized enclosure builds per box type. No trial and error. No second-guessing. Just proven designs tailored to your specific driver and quantity, ready to build. PRO-GRADE CALCULATIONS Volume, port tuning, port velocity, and displacement are calculated accurately and updated in real time. Use interactive sliders to adjust width, height, and depth while the app auto-recalculates airspace to keep everything within spec. Every number you see is a number you can trust. SPEAKER DATABASE AND CUSTOM ENTRIES A built-in speaker database comes loaded with Thiele/Small parameters for popular drivers. Don't see yours? Add any custom speaker in seconds and the app incorporates it instantly into your calculations and Advisor recommendations. VISUAL PREVIEWS Watch your enclosure come to life with realistic 2D cutaway drawings and 3D previews that dynamically reflect your chosen box style and exact dimensions. See it clearly before you build it. CUT LISTS AND PDF EXPORTS When your design is locked in, Subwoofer Box Pro generates a complete cut list with material thickness, kerf, and waste factor — so you know precisely what to cut before you ever touch a saw. Export professional build sheets and cut lists to PDF and share them with customers, fabricators, or your crew. If you take car audio seriously, this is the tool you've been waiting for. Download Subwoofer Box Pro and build it right the first time.
Screenshots
Verdict
The clearest difference is price: PBX DSP8 at Free against Subwoofer Box Pro's $14.99. PBX DSP8 also leads on rating (4.8 vs 3.0) and ratings volume (4 vs 1). Subwoofer Box Pro's advantage is iOS requirement (15.1 vs 26.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
PBX DSP8 is free to download; Subwoofer Box Pro costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PBX DSP8 holds the better App Store score, 4.8 against 3.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
| Parameter | PBX DSP8 | Subwoofer Box Pro |
|---|---|---|
| Price | Free — better | $14.99 |
| Rating | 4.8 (4 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 39 MB | 34 MB |
| Age rating | 17+ | 4+ |
| Developer | PowerBass USA,INC | XxxJAYxxX LLC |
Customer experience
PBX DSP8
Subwoofer Box Pro
In-app purchases
PBX DSP8
No in-app purchases
Subwoofer Box Pro
No in-app purchases









