I see that the mackie profx12v3 has a 48v phantom power switch. can non-phantom and phantom mikes be used at the same time? one be on, others off?

Yes. Condenser microphones often require 48V phantom power. When the 48V phantom power switch is engaged on ProFX series mixers all channels have this extra voltage available. With phantom power, the voltage is effectively invisible to balanced microphones that do not use it, which includes most dynamic microphones.

It says 2x4 usb i/o. does that mean i can get 4 channels into my daw simultaneously?

Hello, 2x4 means that you have a stereo send to the computer and two stereo returns from your computer. The stereo output (1-2) to your computer can be used for recording, VOIP, etc, and you can return two distinct stereo tracks (1-2, 3-4) from your Mac/PC giving you the ability to route audio from different applications (DAW, Spotify, Youtube, etc) or sources (.mp3/WAV playback) from within your computer.

Some of the effects didn't do anything...chorus, flange and a few others. Is my unit defective?

Make sure the FX button is engaged and turned up. It needs to be engaged on the channel you want the FX on. If this hasn’t worked; Please call our tech support. Hours: Monday-Friday 8am-4pm Pacific Time (800) 898-3211

There are three holes underneath profxj10v3. are they for mounting?

Yes, there is an optional adapter you can get to mount it atop a mic stand for easy live access.

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ProFX10v3 10-channel Mixer with USB and Effects

Product ID: 266130936

Details

Brand
Mackie
Connectivity technology
XLR TRS
Item weight
6.65 Pounds
Number of channels
10
Product dimensions
27.2D x 30.2W

🔊24-bit/192kHz pristine audio quality

🎙️4 Onyx mic preamps with 60dB gain

🎚️10 channels for ultimate control

Description

🎛️ Elevate your sound game with pro-grade mixing magic

DUAL CUSTOM USB MIXES - Create two separate monitor mixes on your computer for perfect playback control
PRO LEVEL VERSATILITY - Seamlessly switch between live sound, recording, and streaming setups
BUILT IN 24 FX PRESETS - Add instant polish with reverb, delay, and more — no extra gear needed
HIGH RES AUDIO CAPTURE - Record and mix in stunning 24-bit/192kHz for professional-grade sound
CRYSTAL CLEAR MIC INPUTS - Four ultra-low noise Onyx preamps deliver studio-grade clarity for your voice

The Mackie ProFX10v3 is a 10-channel unpowered mixer designed for live sound, home recording, and streaming. Featuring four Onyx mic preamps with up to 60dB gain and ultra-low noise, it delivers pristine 24-bit/192kHz audio quality. Dual 2x4 USB I/O enables two custom computer mixes, while 24 built-in effects add creative flair. Compact and versatile, it’s the perfect hub for professional content creators and musicians alike.

Specifications

ASIN	B07X8Z1BRG
Audio Input	Microphone & Digital Inputs
Brand Name	Mackie
Connectivity Technology	XLR, TRS
Customer Reviews	4.4 4.4 out of 5 stars (580)
Frequency	192 KHz
Global Trade Identification Number	00663961057881
Included Components	Power Supply, Pro Tools® \| First software, Quick Start Guide, USB Cord
Item Dimensions D x W x H	27.2D x 30.2W x 8.1H centimeters
Item Type Name	Mixer - Unpowered
Item Weight	3.02 kg
Manufacturer	Mackie
Manufacturer Part Number	2051300-00
Model Number	ProFX16v3
Noise Level	60 Decibels
Number of Channels	10
Output Connector Type	USB
Power Source	Corded Electric
UPC	663961061901 663961057881
Unit Count	1 Count
Voltage	110 Volts

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