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SPL Phonitor One Audiophile Headphone Amplifier

Headphone Amplifier

Phonitor One is a concisely featured headphone amplifier built from highly desirable components and designed with audiophiles in mind.

Part No:

SP-S1PHO1

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£489.00 £407.50

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Description

Phonitor One is a concisely featured headphone amplifier built from highly desirable components and designed with audiophiles in mind.

True FET Preamp Stage
The Phonitor One’s preamp stage is powered by two Burr-Brown OPA 2134 SoundPlus op amps specially designed for audiophile circuits and emitting a low distortion value of just 0.00008%. The preamp’s true FET stage allows for a slew rate of 20V/µs resulting in a high-speed op amp and a jump in playback liveliness.

Class A/B Power Amp
The output stage of Phonitor One has been specifically designed as a push-pull configuration in class AB mode. Bipolar transistors then share amplification of both positive and negative half waves to produce higher output voltage and gain, even when compared to Class A operation.

The Phonitor One’s power amp output stage transistors are each thermally coupled to run coherently and contribute to a reliably consistent stereo image during listening.

Phonitor Matrix
Inherited from some of SPL’s most revered high-end headphone amplifiers, Phonitor Matrix technology is a powerful tool that emulates the experience of mixing on studio monitors, translated to headphones.

Phonitor One features a center level preset hardcoded to -1 dB as well as a default speaker angle of 30 degrees to assume the most popular mixing settings.

On the Phonitor One's front panel, the Crossfeed function can be used to determine the crosstalk between channels, a technical metric known as "interaural level difference.”

Features

2x balanced jack inputs
2x mono RCA inputs
Burr Brown SoundPlus op amps
Class A/B power amp
Thermally coupled output transistors
On-board Phonitor Matrix
Crossfade control to manipulate crosstalk settings
Up to 22.5dB gain thanks to 17V operation

Specification

More Information
Description	Phonitor One is a concisely featured headphone amplifier built from highly desirable components and designed with audiophiles in mind. True FET Preamp Stage The Phonitor One’s preamp stage is powered by two Burr-Brown OPA 2134 SoundPlus op amps specially designed for audiophile circuits and emitting a low distortion value of just 0.00008%. The preamp’s true FET stage allows for a slew rate of 20V/µs resulting in a high-speed op amp and a jump in playback liveliness. Class A/B Power Amp The output stage of Phonitor One has been specifically designed as a push-pull configuration in class AB mode. Bipolar transistors then share amplification of both positive and negative half waves to produce higher output voltage and gain, even when compared to Class A operation. The Phonitor One’s power amp output stage transistors are each thermally coupled to run coherently and contribute to a reliably consistent stereo image during listening. Phonitor Matrix Inherited from some of SPL’s most revered high-end headphone amplifiers, Phonitor Matrix technology is a powerful tool that emulates the experience of mixing on studio monitors, translated to headphones. Phonitor One features a center level preset hardcoded to -1 dB as well as a default speaker angle of 30 degrees to assume the most popular mixing settings. On the Phonitor One's front panel, the Crossfeed function can be used to determine the crosstalk between channels, a technical metric known as "interaural level difference.”
Specification	Performance Max Input: +22.5 dBu CMR: < 60 dB Source Impedance: 20 Ω Frequency Range: 10 Hz - 200 kHz (-3 dB) Noise: -97 dBu (A-weighted, 600 Ω) THD: 0.013 % (0 dBu, 10 Hz – 22 kHz, 32 Ω) Max Output: 2 x 330 mW (250 Ω) Crosstalk: -75 dB (1 kHz, 600 Ω) Power Operating Voltage: +/- 17V analogue, +/- 19V head-amp Switch Adaptor: Mean Well GE18/12-SC DC Plug: (+) pin 2.1mm; (-) outside ring 5.5mm Input: 100 - 240 V AC; 50 - 60 Hz; 0.7 A Output: 12 V DC; 1.5 A Physical Properties Dimensions: 210 x 49.6 x 220 mm (WxHxD) Weight: 1.4kg Shipping Weight: 2kg