Definitive Audio TM 633 BU-dsp

Essential Information About the 12-Channel Bluetooth/USB Mixer

• Complete and Flexible Connectivity: 6 combo XLR/6.35mm Jack inputs, 2 mono 6.35mm Jack inputs, 2 RCA inputs, and 1 AUX input via 3.5mm jack to handle microphones, instruments, and consumer audio sources.


• Autonomous and Modern: built-in Bluetooth receiver + USB player/recorder compatible with MP3/WAV/APE/FLAC for quick streaming and capturing of a mix.


• Integrated Processing: 24bit/48KHz DSP with 99 effects + 3-band equalization and low-cut filter to shape sound without additional equipment.


• Stage-Ready: main outputs in XLR, monitor outputs in 6.35mm Jack, headphone output 6.35mm Jack, LED indicators (level and clipping), and +48V phantom power with indicator.

A Compact Console Designed for Modern Setups (Rehearsal, Home Studio, Small Gigs)

Compact mixers have established themselves as the nerve center of lightweight configurations: they combine microphone/instrument inputs, master level control, and essential correction tools in one format. This 12-channel mixer follows this "all-in-one" logic by adding features that have become essential for everyday use, such as Bluetooth streaming and USB recording, while maintaining traditional ergonomics (panning, faders, monitoring, and LED indicators) suitable for both stage conditions and home working sessions.

Who Is It For and What Are Its Uses?

This 12-channel mixer is ideal if you need to manage multiple sources simultaneously: vocal microphones, guitar/keyboard, backing tracks, or even hold music from a smartphone. It is particularly suitable for rehearsals, small gigs (duo/trio, conferences, events), ambient music playback, as well as home studios when you want a simple solution to balance multiple inputs and capture a recording via USB. The monitor outputs and headphone output also facilitate mix control, whether you are front of house or at a dedicated station.

Technical specifications

Type	Hybrid	Rackable	No
USB stereo recording / playback	Yes	Headphone output	Jack 6.35
Number of faders	7

Mono jack inputs	2 x 6.35mm	Sensitivity	adjustable
RCA inputs	2	Clipping indicator	LED, per channel
AUX input	1 x 3.5mm jack	Master level indicator	2 x 6 LEDs (4 green, 2 yellow and 2 red)
Mute pedal input	FOOT SW	Master volume fader	linear
Bluetooth receiver	built-in	Phantom power	+48V with LED indicator
USB player/recorder	MP3/WAV/APE/FLAC	Maximum output level	3 Vrms
DSP	99 effects	Frequency response plus or minus 0.5 dB	20 - 20000Hz
DSP resolution	24bit/48KHz	Dynamic range	102 dB
3-band EQ	80Hz and 12KHz plus or minus 15dB	THD	<0.05%
Low Cut button	yes	Power supply	DC 5V, 2A
Pan	L+R	Power consumption	max 10W