SPL Pro-Fi Series Phonitor x Headphone Amplifier & Preamplifier with DA Converter and VOLTAiR Technology (Silver)

SPL Pro-Fi Series Phonitor x Headphone Amplifier & Preamplifier with DA Converter and VOLTAiR Technology (Silver)
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SPL Phonitor x Overview

The silver Pro-Fi Series Phonitor x Headphone Amplifier and Preamplifier from SPL offers connections for headphones operated both balanced and unbalanced. It has an advanced built-in dual power amp that drives headphones balanced which is twice the power of the standard 1/4" jack. This tightens the bass response and makes the overall playback even more relaxed and transparent. The front houses a 4-pol XLR connector to connect the balanced headphone. Both the standard and the 4-pol headphone outputs can be used simultaneously.

Phonitor x is not just a headphone amplifier but also a full-fledged stereo preamplifier. There is provision for connecting up to five stereo sources - two in the analog domain offering XLR connectors for a balanced source and RCA connectors for an unbalanced source.

When Phonitor x operates as a preamplifier together with the Performer as power amplifier both units can be wire-linked for simultaneous power on/off. Therefore, both units AMP CTL sockets need to be connected with a 3.5mm mono-jack cable. When switching to headphone, listening the performer can automatically be powered down. To engage this feature set DIP switch #6 on the bottom of the Phonitor x to ON. The Phonitor Matrix delivers the most realistic playback on headphones.

The Phonitor x comes equipped with a DA converter. The available inputs are expanded by USB, coaxial, and optical digital stereo inputs. The DA converter supports sample rates up to 192 kHz with 24-bit. It syncs automatically to the sample rate of the selected digital input.

The VOLTAiR 120V Rail Technology is developed and manufactured to run on an operating voltage of 120V, which corresponds to twice that of discrete operational amplifiers and four-times that of semiconductor operational amplifiers. It reproduces finest details and delivers a totally relaxed sounding audio experience. The music sounds natural and hearing fatigue is reduced.

120V rail headphone amplifier and preamplifier
Separate connections and power amplifiers for headphone driven balanced and unbalanced
Suited for all headphones with impedance >10 Ohms
Balanced and unbalanced analog inputs (XLR and RCA)
USB, coaxial, and optical digital inputs
Digital to analog converter with 192 kHz and 24-bit, win driver supplied, Apple Class compliant
With Phonitor matrix speaker-equivalent listening on headphones
Balance control
Mono switch function
Volume remotely adjustable (sold separately)
AMP CTR connection with Performer power amplifier for coupled On/Off switching
Standby/power on switch
Linear power supply with toroidal transformer

SPL Phonitor x Specs

Form FactorTabletop
Number of Headphone ChannelsSingle Channel
Headphone Output Power1 W per Side into 600 Ohms (Max, 1 kHz)
2 W per Side into 300 Ohms (Max, 1 kHz)
3.7 W per Side into 120 Ohms (Max, 1 kHz)
2.9 W per Side into 47 Ohms (Max, 1 kHz)
2.7 W per Side into 32 Ohms (Max, 1 kHz)
Analog Audio I/OXLR 3-Pin Balanced Input
Stereo RCA Unbalanced Input
XLR 4-Pin Balanced Headphone Output
1/4" TRS Unbalanced Headphone Output
XLR 3-Pin Balanced Speaker/Line Output
Stereo RCA Unbalanced Output
Digital Audio I/O1 x RCA Coaxial S/PDIF Input
1 x TOSLINK Optical S/PDIF Input
USB1 x USB Type-B
Frequency ResponseXLR Balanced Headphone Outputs:
10 Hz to 300 kHz -3 dB
1/4" Headphone Outputs:
10 Hz to 300 kHz -3 dB
XLR Speaker, Line Outputs:
4 Hz to 300 kHz -3 dB
Max Input Level+32.5 dBu
Max Output Level+30 dBu
Dynamic RangeXLR Balanced Headphone Outputs:
130.5 dB
1/4" Headphone Outputs:
135.5 dB
XLR Speaker/Line Outputs:
136.3 dB
ImpedanceXLR Balanced Headphone Outputs:
0.36 Ohms
1/4" Headphone Outputs:
0.18 Ohms
XLR Inputs:
20 Kilohms
RCA Inputs:
10 Kilohms
THD+NHeadphone Outputs:
0.00091% (at 0 dBu, 1 kHz, 100-Kilohm Load)
XLR Speaker/Line Outputs:
0.00085% (at 0 dBu, 1 kHz, 100-Kilohm Load)
NoiseXLR Balanced Headphone Outputs:
-98 dBu (A-Weighted)
1/4" Headphone Outputs:
-103 dB (A-Weighted)
XLR Speaker/Line Outputs:
-103.8 dB (A-Weighted)
-82 dBu (1 kHz)
CrosstalkXLR Balanced Headphone Outputs:
-90 dB (1 kHz)
1/4" Headphone Outputs:
-90 dB (1 kHz)
XLR Speaker/Line Outputs:
-106 dB (1 kHz)
Damping FactorBalanced Headphone Outputs:
180 at 40 Ohms
Headphone Outputs:
180 at 40 Ohms
Digital Audio
Sample Rates44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
Rail VoltageAnalog:
±60 V
±5 V
±3.3 V
AC Input PowerUser Selectable:
115 VAC, 60 Hz (T 1 A 250 V)
230 VAC, 50 Hz (T 500 mA 250 V)
Power Consumption40 VA (Maximum)
0.7 W (Standby)
Dimensions11 x 11.2 x 2.2" / 33.5 x 28 x 5.6 cm (with Feet)
Weight9.5 lb / 4.3 kg
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