(Open Box) SPL - Marc One Monitor and Recording Controller

with innovative features and a 32-bit AD/DA converterSPL’s Marc One is a unique monitor controller and 32-Bit AD/DA in SPL’s One range of professional audio equipment. The Marc One boasts two stereo inputs (one balanced, one unbalanced) alongside two speaker outputs, a headphone output and a subwoofer output. Similarly, to the inputs, the output sections offer a choice of balanced or unbalanced ¼” connection points. A cool feature we enjoyed was the inclusion of the USB port, via which you’re able to record or playback 32-bit audio at high sample rates.

The Marc One is fully capable of supporting PCM sample rates up to 768 kHz. If you have DSD audio you’re keen on listening to, it’s possible to play it via DSD over PCM (DoP) up to DSD256. Due to the Marc One having line inputs as well as outputs, it’s possible to record audio at these high sample rates and resolutions, which is absolutely perfect for capturing your vinyl records or recording instruments such as analogue synths. On the front facing panel, you’ll find a handy input selector which allows you to switch between two-line sources, which are able to be blended to your liking.

at a glance • Audiophile-Grade Monitor Controller
• Built-In High-Quality Headphone Amp
• Balanced or Unbalanced 1/4" Ins and Outs
• Subwoofer Output and Headphones Output
• Phonitor Matrix with Variable Crossfeed
• Includes Power Supply

quickly & intuitively
set the right volume levelsYou can adjust the volume levels at lightning speed with the Monitor knob. In the middle, all input signals are equally loud. To the left, the analogue stereo inputs get louder and the USB input signal gets quieter. Turning from the center to the right does the opposite. So you can quickly and intuitively set the right volume levels.

Phonitor MatrixIn the headphone amplifier is the Phonitor Matrix, with adjustable crossfeed, thanks to which you can create mixes with headphones that sound the same on speakers.

The Phonitor Matrix in its largest expansion stage has three parameters: Crossfeed, Speaker Angle and Center Level.

In the Marc One, the center level is preset to -1 dB and the speaker angle to 30°. These are the most commonly used values. The crossfeed function determines the so-called interaural level difference.

The intensity of the crossfeed is fully variable. At the beginning of the control path the crossfeed circuit is not in the audio path. Dialing the control in switches on the crossfeed circuit via relay (hysteresis circuit). The audio signal therefore does not pass through the crossfeed stage if this is not desired.