MDA931 vs RAmp

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.

RAmp turns your iPhone, iPad, or Mac into a sleek remote control for your HiFi amplifier. Compatible with any Rotel amplifier that supports the RS232 ASCII protocol over Ethernet — including the RA-1572, RA-1592, RA-1572MKII, RA-1592MKII and other network-enabled models. Connect over your local Wi-Fi and take full control of your listening experience — no line of sight required. INSTANT DISCOVERY Launch the app, tap Scan, and RAmp automatically finds your Rotel amplifier on the network. One tap to connect, and you're ready to go. COMPLETE CONTROL • Power on/off and standby • Volume adjustment with real-time feedback • Mute toggle • Source selection: CD, Phono, Tuner, Coax, Optical, USB, Bluetooth, XLR, and more • Bass and treble fine-tuning (±10 levels) • Tone bypass toggle • Balance adjustment (L15–R15) • Speaker A/B selection • Display dimmer control DESIGNED FOR AUDIO LOVERS RAmp features a premium brushed-metal interface that matches the look and feel of your Rotel equipment. Dark mode by default, designed to blend into your listening room. WORKS EVERYWHERE • iPhone: control from the couch • iPad: a beautiful dashboard for your audio setup • Mac (Catalyst): manage your amplifier from your desktop ALWAYS IN SYNC RAmp communicates directly with your amplifier over TCP using the official Rotel RS232 ASCII protocol. Every change — whether made from the app, the physical remote, or the front panel — is reflected instantly. Settings sync across all your devices via iCloud, so your connection details are always ready. PRO FEATURES The free version gives you basic control with volume up to 14 and tones up to ±3. Unlock RAmp Pro with a one-time purchase to access: • Full volume range (0–96) • Full bass & treble control (±10) • Tone bypass toggle • Speaker A/B selection No subscriptions. Buy once, use on all your devices. COMPATIBILITY Works with any Rotel amplifier featuring the RS232 ASCII protocol over Ethernet, including but not limited to: • RA-1592 / RA-1592MKII • RA-1572 / RA-1572MKII • Other Rotel models with Ethernet and RS232 protocol support REQUIREMENTS • Amplifier connected to your local network via Ethernet • iPhone, iPad, or Mac on the same Wi-Fi network PRIVACY RAmp communicates only with your amplifier on your local network. No data is collected, no accounts required, no analytics, no tracking. Note: ROTEL® is a registered trademark. This application is an independent work and is neither affiliated with nor endorsed by ROTEL®. Use of this product is solely the responsibility of the end user. The developer, Apple, or Rotel cannot be held liable for any issues. Applied Standard Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/