Comparison

DriveRack PA2 Control vs Audio Spectrum Analyzer dB RTA

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DriveRack PA2 Control

Control your PA2 hardware wirelessly from any location. This app optimizes and protects your loudspeakers by managing audio processing between your mixer and amplifiers.

Highlights
  • Wireless control via WiFi
  • System setup from any location
  • Loudspeaker optimization
  • Loudspeaker protection
  • Audio processing management
Read full description

The DriveRack® PA2 Control app is the ultimate way to control the PA2 hardware. The DriveRack® PA2 provides all the processing you need between your mixer and amplifiers to optimize and protect your loudspeakers. With the PA2 app you can control all aspects of the hardware through a network (WiFi) connection allowing you to setup system from any location. DriveRack® PA2 continues the DriveRack® legacy of great-sounding, powerful, and affordable loudspeaker management processors.

About

Audio Spectrum Analyzer dB RTA

Analyze sound frequencies and decibel levels with this advanced tool. Ideal for tuning audio systems, it offers real-time spectrum analysis and sound metering for various applications.

Highlights
  • Octave Band Real-Time Analyzer
  • FFT Plot - Fast Fourier Transform
  • Integrated Sound Level Meter (dB-A)
  • Multispectral Harmonic Analyzer
  • Hold Max and Min Peaks
  • Various Window Functions
Features
Read full description

Spectrum Analyzer is full of fantastic advanced features you won’t find elsewhere easily! This app offers a fast and accurate spectrum analysis suitable for both amateur hi-fi enthusiasts and professional A/V engineers. This incredibly precise, pro level tool is perfect for tuning your home cinema, car stereo, subwoofers, and more. Spectrum analyser gives insight into your sounds and deconstructs the audio spectrum, showing the levels of the various frequencies in your audio signal. The built-in sound meter provides high-quality measurement results when measuring ambient noise levels in a multitude of real-life scenarios. Features include- ● Octave Band Real-Time Analyzer ● FFT Plot - Fast Fourier Transform ● Smooth HD Graphics ● Multispectral Harmonic Analyzer ● Integrated Sound Level Meter (dB-A weighted) FFT Features ● FFT size from 256 to incredible 16384 ● Hold Max and (unique feature) Min peaks ● Linear and Logarithm scales ● Various window functions: Rectangle, Hanning, Hamming, Tukey, Cosine, Lanczos, Blackman ● Max frequency live tracking ● Selected frequency live tracking ● Fullscreen mode Octave RTA features ● Bars and unique spline plot modes ● Full, 1/3, 1/6 octave modes ● Hold max mode ● Selected bar tracking. And much more... Please feel free to contact us with any questions, problems or ideas via e-mail support@lspapps.com. Privacy Policy - https://www.iubenda.com/privacy-policy/42622625 Terms of Use https://www.iubenda.com/terms-and-conditions/42622625

Screenshots

DriveRack PA2 Control4 screens
Audio Spectrum Analyzer dB RTA3 screens

Verdict

The call

The clearest difference is rating: Audio Spectrum Analyzer dB RTA at 4.5 against DriveRack PA2 Control's 3.2. Audio Spectrum Analyzer dB RTA also leads on ratings volume (3K vs 110) and review sentiment (44% vs 34%). DriveRack PA2 Control's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Audio Spectrum Analyzer dB RTA sells 2 in-app purchases, starting at $1.99 per month. DriveRack PA2 Control asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Audio Spectrum Analyzer dB RTA holds the better App Store score, 4.5 against 3.2. That said, the two scores are not equally well evidenced: Audio Spectrum Analyzer dB RTA has 3K ratings behind it against 110, so its average is the more settled of the two. Written reviews point the same way: 34% of DriveRack PA2 Control's written reviews are positive against 44% of Audio Spectrum Analyzer dB RTA's.

UpkeepUpdate frequency

DriveRack PA2 Control ships an update every 8 months, Audio Spectrum Analyzer dB RTA every 5 months. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
DriveRack PA2 Control versus Audio Spectrum Analyzer dB RTA: the parameters behind the verdict, then further details
ParameterDriveRack PA2 ControlAudio Spectrum Analyzer dB RTA
PriceFreeFree
Rating3.2 (110 ratings)4.5 (3K ratings) — better
Positive reviews34.0% of reviews43.6% of reviews — better
Number of ratings1103K — better
Update frequencyEvery 8 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15
Further details — not scored
Size67 MB24 MB
Age rating+44+
DeveloperHarman Professional, Inc.Marina Polyanskaya

Customer experience

DriveRack PA2 Control

All ratings108 ratings
Positive49.1%
Neutral10.2%
Negative40.7%
Written reviews97 reviews
Positive34.0%
Neutral8.2%
Negative57.7%

Audio Spectrum Analyzer dB RTA

All ratings3,042 ratings
Positive87.7%
Neutral4.1%
Negative8.2%
Written reviews484 reviews
Positive43.6%
Neutral7.4%
Negative49.0%

Bugs and requests

DriveRack PA2 Control

Not enough reviews yet to summarise bugs or requests.

Audio Spectrum Analyzer dB RTA

Reported bugs

3 issues
  • Freezing and crashing on certain devices
  • Incorrect frequency readings in Octave RTA mode
  • Inability to switch between microphone sources

Requested features

4 requests
  • External microphone support
  • Ability to save and compare measurement results
  • More detailed instructions and tutorials
  • Vertical orientation option

In-app purchases

None

DriveRack PA2 Control

No in-app purchases

2 purchases

Audio Spectrum Analyzer dB RTA

Subscriptions1
  • Premium Access3 Days trial$1.991 Month
One-time1
  • Spectrum Analyzer Pro$7.99

Questions

Is DriveRack PA2 Control free?
DriveRack PA2 Control is free to download, with no in-app purchases.
Is Audio Spectrum Analyzer dB RTA free?
Audio Spectrum Analyzer dB RTA is free to download, with in-app purchases available.
Which has better reviews, DriveRack PA2 Control or Audio Spectrum Analyzer dB RTA?
Audio Spectrum Analyzer dB RTA is rated higher. DriveRack PA2 Control averages 3.2 out of 5 from 110 ratings, while Audio Spectrum Analyzer dB RTA averages 4.5 from 3K ratings.
Do DriveRack PA2 Control or Audio Spectrum Analyzer dB RTA have ads?
Neither DriveRack PA2 Control nor Audio Spectrum Analyzer dB RTA shows ads.
Which is updated more often, DriveRack PA2 Control or Audio Spectrum Analyzer dB RTA?
DriveRack PA2 Control ships an update every 8 months, and Audio Spectrum Analyzer dB RTA every 5 months. Most recently, DriveRack PA2 Control was updated on October 23, 2026 and Audio Spectrum Analyzer dB RTA on October 29, 2026.

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