SPL Control One

“Considering the high sound quality and a level of manufacturing that deserves the label ‘Made in Germany’, the price asked is more than justified. Well done, SPL!” – Sound & Recording

“It is a neutral, accurate and transparent‑sounding controller, which is its raison d’être; the Volume Control’s channel‑matching is very impressive, and the useful inclusion of direct outputs could make it a perfect solution for some. Its headphone amplifier is also extremely capable, and its crossfeed system is a genuinely useful selling point.” – Sound On Sound

“Plug it in, let’s go – the analog operation of Control One is superbly implemented and the sound is on the highest level. Studio technology for your home!” – Bonedo

“The SPL Control One is very well suited for smaller studio setups or post-productions where a simple, analog monitor controller is needed. Despite its flat format and basic features, it offers a classy sound that should normally only be expected from more expensive devices.”– Amazona

Monitoring in highest sound quality.

Create perfect mixes on speakers and also on headphones – thanks to the Phonitor Matrix.

SPL’s Series One ensures that the sound always takes center stage, captivating listeners with its exceptional quality. Achieving this remarkable audio experience demands a perfect blend of expertise and technical finesse, both of which SPL has masterfully incorporated into their Series One.

Full control

The big analog volume control offers the perfect control range to adjust the monitoring volume intuitively and precisely.

Speaker & Subwoofer – monitoring without any compromises

As a full-fledged monitor controller, Control One offers two pairs of outputs for stereo speakers. You can listen to your production via two switchable pairs of speakers. A subwoofer is also switched on and off with speaker pair A. In the middle position of the switch, the speakers are switched off, which is convenient because you don’t have to turn the volume control back.

Two stereo inputs

Control One provides two analog stereo inputs for input devices such as DA converters, CD players, microphone preamps, synthesizers or an analog tape machine.

Line Out

The signal selected in the input section is output unchanged at the line output “Line Out”. The line output has unity gain, the normal, unregulated output level – independent of the volume control. Multiple users can listen in via additional headphone amplifier connected to the Line Out. The Control One can also be easily looped into a monitoring chain without the need for another output at the playback source. You can also send the signal to another mixer for further processing. There are no limits to creativity here.

The headphone output stage

Weak sound on headphones?
Not enough power?

Not here. Control One delivers a full headphone sound – and that up to really loud.

The output stage of the headphone amplifier is designed as a push-pull amplifier in class AB mode. The bipolar transistors share the amplification of the positive and negative half-waves, which produces a higher gain and a higher output voltage than in Class A operation, where only one transistor amplifies both half-waves. The output stage transistors are thermally coupled and thus run particularly coherently, which contributes to a consistent and stable sound image. The power supply has a buffer circuit with low source resistance, ensuring generous current reserves even when operating low-impedance headphones.

The revolution in the headphone amplifier: Phonitor Matrix

The Phonitor Matrix enables mixing and mastering engineers to create perfect mixes on headphones, which will translate perfectly to all types of stereo speaker systems.

The Phonitor Matrix parameters