SPL Crimson 3
SPL Discontinued

SPL Crimson 3

Desktop studio audio interface and monitor controller with two mic preamps, two instrument inputs, talkback and a headphone amplifier with Phonitor Matrix crossfeed. Aimed at home and project studios that want recording, speaker switching and headphone mixing in one unit. Listed as discontinued.

  • 2 discrete mic preamps with switchable phantom power
  • 2 front Hi-Z instrument inputs
  • Phonitor Matrix headphone amp with crossfeed
  • Two headphone outputs, two speaker pairs, talkback mic
  • Up to 192 kHz; class compliant on Mac/iOS
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Description

Crimson 3 combines a USB audio interface with a studio monitor controller. It has two discrete microphone preamps with switchable phantom power and a high-pass filter, plus two high-impedance instrument inputs on the front panel. A built-in omnidirectional electret talkback microphone has its own gain control.

On the monitoring side it switches between two speaker pairs, offers a dim function, an Artist Mode and a Talk switch, and lets the user build a monitor mix of analog inputs and analog or digital sources and DAW returns. Two headphone outputs have independent volume controls. The headphone amplifier includes the Phonitor Matrix, which adds adjustable crossfeed to reduce the super-stereo effect of headphones; centre level is preset to -1 dB and speaker angle to 30°.

The unit connects to a Mac, PC or iOS device over USB and is class compliant on Mac and iOS, so no driver is needed there; iOS requires the Apple camera adapter. Windows needs a driver for sample rates above the standard ones. Converters run up to 192 kHz. Speaker output A is on XLR and B on 6.3 mm TRS jack. It is powered by an external 12 V DC adapter.

Specifications

Brand
SPL
Model
Crimson 3
Category
Studio › Audio interfaces

Inputs

Mic preamps
2, XLR balanced, discrete
Mic max input gain
14.5 dBu
Mic input impedance
10 kΩ
Mic E.I.N. (150 Ω)
-128 dBu
Instrument inputs
2, 1/4" (6.3 mm) TRS jack, balanced
Instrument input impedance
1,1 MΩ
Line/source inputs
1/4" (6.3 mm) TRS jack balanced, RCA, 3.5 mm mini-jack
Phantom power
+48 V, switchable

Outputs

Speaker output A
XLR, balanced
Speaker output B
1/4" (6.3 mm) TRS jack, balanced
Speaker output max level
22.5 dBu
Volume control range
-78 dB – 0 dB
Headphone outputs
2, 1/4" (6.3 mm) TRS jack
Headphone output impedance
33 Ω
Headphone max power (470 Ω)
670 mW

Audio

Sample rates
44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
AD dynamic range (44.1/48 kHz)
113 dB
DA dynamic range (44.1/48 kHz)
109 dB
0 dBFS calibrated to
15 dBu
Mic frequency range (-3 dB)
20 Hz – 200 kHz

Connectivity

Host connection
Mac/PC, iDevice, tablet
Mac / iOS driver
Class compliant, no driver required
Windows driver
Version 2.9.86.25 (Windows XP/7/8/8.1/10)
MIDI
MIDI In

Power

Power consumption
16.8 W
External adapter
Mean Well GE18/12-SC, 12 V DC, 1.5 A
Input voltage
100 - 240 V AC; 50 - 60 Hz; 0.7 A

Physical

Dimensions (W x H x D)
330 x 67 x 212 mm (13 x 2.64 x 8.35 inch)
Unit weight
2.8 kg (6.17 lbs)
Shipping weight
4 kg (8.82 lbs)

Data: spl.audio; photos: SPL product page · updated 2026-10-18 · Found a mistake? Write to us