---
title: "PA-4.8 - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "The app is designed for use with RAINBOW CAR AUDIO dsp PA-4.8 This app gives you tools needed to fine tune virtually every aspect of your car audio system. Whether you ara a professional installer or "
---

# PA-4.8 — United States

![PA-4.8 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/f6/e3/4e/f6e34ede-b634-3884-1498-c782a0dc0c38/appicon-0-1x_U007emarketing-0-7-0-85-220-0.png/434x0w.png)

**Developer:** [Rainbow Audio](https://apptail.io/developer/rainbow-audio-Mogc) (Germany)
**Category:** Utilities
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.dlpa48
**Store:** Apple App Store
**Country:** United States
**Version:** 1.0.2 (released 2025-09-16)
**Original Release:** 2025-08-14
**Languages:** English, Chinese

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6751022849)
**AppTail Page:** [https://apptail.io/app/pa-48-hqnx/united-states](https://apptail.io/app/pa-48-hqnx/united-states)

## PA-4.8 Description
The app is designed for use with RAINBOW CAR AUDIO dsp PA-4.8
This app gives you tools needed to fine tune virtually every aspect of your car audio system. Whether you ara a professional installer or an obsessive audiophile, this app allows you to realize the true potential of DSP tuning tools.
Features: 31 bands EQ parametric / grahpic equalization per channel. Phase correction.
Crossover type, frequency and slope adjustments. Independent input and output level controls.Time Delay. Input summing and linking. 6 customizable presets.

## PA-4.8 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f6/bf/63/f6bf63c3-2ea3-d721-828f-ca857ca94414/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2025-08-14_at_14.06.38.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/1a/37/ed/1a37edb5-cb30-80d5-2f98-e7f661f84c06/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2025-08-14_at_14.06.43.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/40/7b/ff/407bff6d-9e5e-6608-63de-9a66667a903b/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2025-08-14_at_14.06.51.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/2b/18/f1/2b18f168-3d81-a221-24b5-3d39b65b5526/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2025-08-14_at_14.06.47.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/68/9d/fd/689dfd68-26a7-8857-b149-2b11a5d18a32/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2025-09-15_at_18.09.10.png/1242x2688.png)






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---

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