Phonitor x – Professional Fidelity @

Bonedo is pretty busy testing our brand-new Pro-Fi series. Within the first review, Felix Klostermann provides an extensive overview of our headphone amplifier and preamplifier Phonitor x:

This is high-quality workmanship and the three different available colors in which you can purchase the unit, make the Pro-Fi series look pretty good.”

It belongs to SPL’s new Hi-Fi product series, which is called ‘Pro-Fi’ and is supposed to lead you to build your own SPL Hi-Fi tower ‘Made in Germany’. ‘Retrodreams come true’, if you like.”

Thanks to its linear power supply with toroidal transformer, the SPL Pro-Fi Phonitor x weights 9.5 lbs … which makes the unit as imposing as the already tested (and rated ‘very good’) Phonitor 2.”


New features:

The most important new features are the additional balanced headphone output and the optional digital inputs.”

Everything in the sense of focusing on the Hi-Fi market and its users.”

The Phonitor is very loud, extremely linear and there are basically no distortions. Of course this is also a result of the 120V Rail Technology aka VOLTAiR, which actually runs SPL’s proprietary OpAmps in idle mode and thereby reaches outstanding technical and sonic performances, especially in terms of dynamic range, signal-to-noise ratio and headroom.”

The Phonitor x really sounds extremely linear and has a very high output level, which was more than enough for my ‘unbalanced’ headphones. The ‘balanced’ headphones output should provide even more output level, …”

The Matrix is a valuable addition and makes listening on headphones more natural.”


The SPL Pro-Fi Phonitor x is a very good and excellent sounding headphone amplifier, which does not gloss over or even hide anything. It has massive power to deal with any kind of headphones. Thanks to the Phonitor Matrix, the unit sounds authentic and transparent, without negatively influencing or coloring anything. Moreover, this beautiful unit, thanks to its IR-remote function and line outputs, is a nice and puristic front-end for your Hi-Fi tower.”

You will find the complete review (in German) at


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What does it actually mean …

In Stock!

The product is in stock in our warehouse in Niederkrüchten, Germany, and will be shipped the same or next working day.

We process the orders after receipt of the order and update the stock in the online shop regularly. If the product is no longer available at short notice due to high order volume, you naturally have the right to withdraw from the purchase (see Right of Withdrawal).

In any case, you will receive an e-mail with details of the delivery and the estimated delivery time.

Available soon!

The product is not in stock in our warehouse in Niederkrüchten, Germany. Usually it will be available again within 5 working days.

Due to the current pandemic and the associated worldwide shortage of components, delivery times may be significantly delayed in some cases.

In any case, you will receive an e-mail with the details of the delivery and the estimated delivery time.

Of course you have the right to withdraw from your purchase (see Right of Withdrawal).

Product Condition


Brand-new product from the current product portfolio.


Demo, exhibit or return item.
In original packaging, incl. manuals and full warranty.
Only slight to no signs of use.


Demo, exhibit or return item.
In original packaging, incl. manuals and legal warranty.
In some cases clear signs of use, which are documented in photos.


"New Old Stock"
After discontinuation of a product still available new products with full warranty.