DSP 1.8 vs A540DSP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DSP 1.8
Configure and control a specific audio DSP device wirelessly. Stream audio directly over WiFi. Requires a dedicated hardware module for operation.
- Wireless configuration
- WiFi audio streaming
- DSP device control
- Requires WiFi module
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DSP 1.8: Configuration app for Rainbow Audio DSP 1.8 with WiFi module. Enables the operation and configuration of the Rainbow Audio DSP 1.8 via WiFi as well as audio streaming over WiFi. App is designed for Rainbow retailers, as well as experienced end-users with appropriate expertise. The WiFi module (accessory) is required to work with the app.
A540DSP
Control your car amplifier's audio settings, including EQ, bass, and time alignment, directly from your phone. Save and load custom sound profiles for a personalized listening experience.
- EQ control
- Bass adjustment
- Time alignment
- Phase and mute settings
- Filter control
- Save sound settings to phone
- Save sound settings to amplifier
- Load sound settings from phone
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After connecting App to Car Amplifier with Integrated DSP, EQ, BASS,TIME ALIGNMENT, PHASE, MUTE, FILTER , SAVE SOUND SETTING TO PHONE, SAVE SOUND SETTING TO AMPLIFIER, LOAD SOUND SETTING FROM PHONE, RCA OUTPUT etc could be controlled through this App. How to use: 1.Install App and turn on power of car 2. Turn on Bluetooth on your iPhone 3,Open App and wait for around 5 seconds, then click “Connect” icon in left corner of bottom. Amplifier will be connected to App automatically. 4.DIY you preferred sound and then click “Save to AMP” icon to save. Or click “ Save to Phone” to save. Note： 1.Do not exit app during saving and do not turn off power supply, program may be shut down caused by this.
Screenshots
Verdict
The clearest difference is device support: A540DSP at 3 against DSP 1.8's 1. DSP 1.8's advantage is iOS requirement (12.0 vs 15.6). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DSP 1.8 ships an update every 39 months, A540DSP every 47 months. The most recent releases landed on September 16, 2026 and October 3, 2026 respectively.
| Parameter | DSP 1.8 | A540DSP |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 39 months — better | Every 47 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 47 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Rainbow Audio GmbH | 杏生 卢 |
Customer experience
DSP 1.8
A540DSP
In-app purchases
DSP 1.8
No in-app purchases
A540DSP
No in-app purchases
