SPL Phonitor One d (Black Friday Offer!)

Brand New – Closed Box - Only 1 unit available at this special price!
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Phonitor One d

The audiophile headphone amplifier with innovative Phonitor Matrix, 32-bit DA-converter and outstanding sound quality.

Monitoring in highest sound quality with up to 32 bit and 768 kHz.Create perfect mixes on headphones – thanks to the Phonitor Matrix.number one in sound

For us the sound is always in the foreground. When it sounds good, we like to listen. To get such a sound, you need experience and technical finesse. We have incorporated both into the Series One.

The design of the amplification stages

The preamplifier stage

Two Burr-Brown OPA 2134 SoundPlus™ operational amplifiers provide the pre-amplification. These are specially designed for audiophile circuits and are characterized by extremely low noise and minimal distortion of only 0.00008%.
Thanks to a true FET stage, the OPA 2134 achieves a slew rate of 20V/µs, making it a high-speed operational amplifier. This has an immediate positive effect on the liveliness of the playback.
In addition, low capacitance film capacitors are installed in the signal path as bypass capacitors of the coupling capacitors, which ensures a more precise transmission of the high-frequency signal components.
The excellent Panasonic ‘Electric Double Layer’ gold electrolytic capacitors are used as coupling capacitors. They offer the highest storage capacity of all capacitor technologies.

The headphone output stage

Weak sound on headphones?
Not enough power?

Not here. Phonitor One d 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.

“With the Phonitor One d, SPL has created an excellent sounding headphone amplifier, plus equally valuable D/A converter, with integrated crossfeed Matrix at an affordable price that meets the highest sound demands.”

Professional Audio

The Revolution: Phonitor Matrix

The Phonitor Matrix is the revolution in the headphone amplifier.

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

With the Phonitor Matrix, you can create mixes on headphones that sound just like on speakers.

But the Phonitor Matrix is not only designed for professional use in the studio.
It also enables the hifi enthusiast to enjoy music on headphones, like if it was played back on speakers.