Brand:

• JBL

Models:

• PRX ONE

Overview:

The PRX ONE features an onboard digital mixer with two primary control views: Channel Mode and Mix Mode.  Switching between these modes allows you to either focus on a single input channel or adjust the overall mix.  This article explains what each mode does and how to switch between them using the PRX ONE’s control interface.

How to switch between Channel Mode and Mix Mode

Use the MODE SELECT button to switch between Mix mode and Channel mode.

What is Channel Mode

Channel Mode is used to adjust individual input channels.  In this mode, you can select a specific channel (Mic, Line, Instrument, or Bluetooth) and adjust parameters such as channel gain, EQ, dynamics, effects send, and other channel-specific settings.

This mode is ideal when setting up microphones or instruments and fine-tuning each input.

(Example of Channel Mode Enabled)

In Channel Mode, each input knob controls a specific channel (to change settings on a channel, briefly press that channel until you see the LED on it).

• Gain/Signal Level (Volume): This controls how strong the signal is fed into the input, increasing the level from -100 dB (muted) up to +56 dB (full volume).

• Bass (Low end frequencies):  Adding warmth and fullness, in live sound, cutting bass often improves clarity more than boosting it.  In this example, we're increasing CH1 bass.  Common sources that use this Bass guitar, Kick drum, Male vocals, Floor toms, and playback music.

• Mid (Middle range frequencies):  This range contains most of the intelligibility and character of speech and instruments.  In this example, we're increasing this for only CH1.  Common sources that use this, are vocals (male and female), Guitars, Keyboards, Snare drum, and spoken word/presentations.

• Treble (High-end frequencies):  This range improves speech articulation & clarity of instruments.  If you hear excessive “S” sounds or harshness, reduce treble slightly.  Common sources that use this are vocals, acoustic guitar, cymbals, Hi-hats, Playback music.

• Reverb: Simulates sound reflecting in a physical space (room, hall, plate, etc.).  It adds depth and space, not volume.  Common uses are Light Reverb on vocals, Subtle Reverb on acoustic instruments and minimal or no Reverb for speech and announcements.

What is Mix Mode

Mix Mode gives you a global view of the mix. In this mode, you can adjust the overall level balance between channels, control the main output level, and review how all channels combine in the final mix. This mode is best for quick level adjustments during a performance.

(Example of Mix Mode Enabled)

General Guidelines