Sound Performance Lab's Phonitor is the company's high-end interpretation for what a complete headphone amplifier should be. The basis for this high-end development is SPL Labs proven 120 Volts reference technology based upon their handmade operation amplifier. It corresponds to approximately twice that of most modern analog audio semiconductor technologies.
This 120 Volt technology is based on discrete operation amplifiers having SUPRA OPs work with high-performance semiconductors in Class A technology at a symmetrical voltage of +/-60V. Nine SUPRA OPs are employed in such a way that SNR is a low 116dB and offers nearly 34dB of headroom. The phase stability is said to be "always perfect." Aside from standard monitoring functions, the Phonitor offers new controls such as "Crossfeed", "Speaker Angle" and "Center Level".
These are the essential parameters to create what with loudspeaker monitors are perception of width, balance and overall space and how we humans recognize them coming from the loudspeaker. The unit's frequency response is from 10Hz to 200kHz (-3dB) with THD of 0.005% and a dynamic range of 129.5dB.
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