SPL's Channel One Mk3 recording channel strip
Rear input view of SPL's Channel One Mk3 strip
SPL Channel One Mk3 Recording Channel

Now in its third incarnation, SPL's popular Channel One recording strip is back with brand new functionality plus the polished and professional sound that has elevated so many vocals and instruments over the years.

Find a Retailer
£2199.00 inc VAT
EAN 4260149322906

  • Discrete preamp for vocals and instruments
  • Dual microphone preamp inputs
  • Front-panel DI instrument input
  • On-board Transient Designer technology
  • 3-band EQ and compressor/limiter built in
  • Tube saturation colouring control
  • Dual-band de-esser for intelligent sibilance removal
SoundOnSound Magazine

"The Channel One has evolved, and the result is one of the most versatile channel strips around"


SPL's Channel One Mk3 strip seeks to serve as the ultimate front-end to modern DAWs. A discrete tube preamp section offers two microphone input circuits with all the polarity and phantom power trimmings that any engineer could desire. Inputs are then fed to a 3-band equaliser , fully dynamic compressor/limiter, noise gate and even a de-esser section, all housed within one seamless strip.

Specially optimised for vocals, acoustic sources and electric instruments, Channel One Mk3 is also furnished with high-impedance inputs as well as a direct-injection jack to cater for electric and bass guitars respectively.

Building on the legacy of its predecessors, the Mk3 incarnation of Channel One also incorporates an integrated Transient Designer circuit directly from SPL's revered transient shaping processor. Additionally a tube saturation stage has been added to control the amount of colour imposed on incoming analogue signals, and a microphone A/B switch function is now on hand to easily compare inputs on the fly.

For an all-in-one studio channel tracking experience that delivers incredibly polished results, Channel One Mk3 truly in a class of its own.

Tone-Shaping On Tap
Channel One Mk3's EQ section with Air Band

Armed with low, mid-hi and Air bands, Channel One Mk3's EQ section is primed for surgical corrective adjustments as well as more general sound shaping before the signal hits the DAW.

Even More Detail
Channel One Mk3 operates at 18V for even higher detail

Compared to previous revision, the Mk3 Channel One features a revamped circuit with a higher internal audio voltage of +/-18V enabling more headroom and even more detailed sound.

SPL's new and improved Channel One Mk3 channel strip

Max Input 13.5 dBu (Mic, +9.5dB – +68 dB)
Impedance 75 Ω out, 10 kΩ mic, 1.1 MΩ instrument
Frequency Range 10 Hz – 200 kHz
Equivalent Input Noise -126 dBu
CMRR < 80 dB mic, < 50 dB line @ 1kHz
THD+N 0.0022 % @ 30dB
Dimensions 482 x 88 x 210 mm, 6kg