RPM870: How To Set Up Mic, Line Or Instrument

Introduction

The Rockville RPM 870 mixer allows you to connect microphones, line-level devices, and instruments for live performances, band rehearsals, and events. This guide will walk you through the step-by-step setup for:

• Microphones (using XLR inputs)
• Line-level devices (using 1/4" inputs)
• Instruments (guitars, keyboards, etc.)

Step 1: Setting Up a Microphone

1. Get an XLR microphone cable.
2. Plug the female end into your microphone.
3. Plug the other end into an XLR input on the mixer (e.g., Channel 1).
4. Turn on the mixer using the power switch on the back.
5. Adjust the following settings on Channel 1:
   • Raise the gain knob to control the mic input level.
   • Raise the channel volume fader to adjust the output.
   • Raise the main left and right faders to send the mic signal to the speakers.
6. Test the microphone: Turn it on and say "Check one, two" – you should hear your voice through the speakers.

Step 2: Setting Up an Instrument (Guitar, Keyboard, etc.)

1. Get a 1/4" instrument cable.
2. Plug one end into your guitar, keyboard, or other instrument.
3. Plug the other end into a line input on the mixer (e.g., Channel 2).
4. Adjust the following settings on Channel 2:
   • Raise the gain knob to control the instrument input level.
   • Raise the channel volume fader to adjust the output.
5. Test your instrument: Strum your guitar or play some keys – you should hear the sound through the speakers.

Step 3: Using a Microphone and Instrument Simultaneously

The RPM 870 allows you to use multiple channels at once, making it perfect for:

• Singers who play instruments (guitar + vocals)
• Live band performances
• Multiple audio sources at the same time

To do this:

• Follow Step 1 for your microphone.
• Follow Step 2 for your instrument.
• Adjust each channel's gain and volume faders separately.
• Raise the main left and right faders to blend the sounds.

Step 4: Fine-Tuning Your Sound

Adjust the Mixer’s Controls for the Best Sound

• Use the EQ settings on each channel to shape your sound.
• Apply effects like reverb or delay for a professional touch.
• Balance your mix by adjusting the gain and volume faders on each channel.

Troubleshooting & FAQs

Q: My microphone isn’t working. What should I check?

✔ Make sure the XLR cable is properly connected.

✔ Raise the gain knob and channel fader.

✔ Ensure the main faders are turned up.

Q: My instrument isn’t making sound. What should I do?

✔ Check that the instrument is plugged in to a line input.

✔ Raise the gain and volume faders for the instrument channel.

✔ Ensure the instrument volume is turned up.

Q: Can I use multiple microphones and instruments at the same time?

✔ Yes. The RPM 870 has six input channels, allowing you to mix microphones, instruments, and other audio sources simultaneously.

Conclusion

Setting up microphones, line inputs, and instruments on the Rockville RPM 870 mixer is quick and easy. With multiple inputs, gain control, and effects, this mixer is perfect for live performances, band rehearsals, and karaoke nights.