SPL Audio

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SPL Audio - Phonitor e Headphone Amp with DAC - Discontinued


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Product Details

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Don't want the DAC? Get the amp without DAC HERE

Phonitor e

All essential functions in a stylish, slim housing.

The Phonitor e offers Phonitor Matrix, volume remote control, connection also for balanced headphones, DA converter option and the all superior VOLTAiR technology.

For all headphones

The Phonitor e offers connections for standard headphones with jack plug and for balanced headphones a 4-pin XLR connector.

Thanks to the high output power, all headphones are driven effortlessly.

Volume with remote control

The volume is adjusted with a milled all-aluminium rotary knob. The Alps RK27 “Big Blue” potentiometer provides a pleasant “spoon in honey” turning feeling.

The volume can be adjusted with any infrared remote control. The Phonitor e learns their commands. To do this, press the IR programming button on the back and then the buttons for louder and softer.

Learning made easy

This video explains how you can use any infrared remote control to remotely control the volume.

Source selection

A total of five sources can be connected to Phonitor e:

XLR, Cinch, USB, Coax, and Optical

Phonitor e is equipped with RCA connectors and balanced XLR connectors for the analog inputs.

The optional DAC768xs adds three more digital sources: USB, Coax and Optical.

The optional DAC768xs

The converter chip used in the optional digital-to-analog converter is the highly acclaimed AKM AK4490 Velvet Sound™ premium DAC chip, which thanks to its new architecture reproduces the finest sound details.

It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768kHz, which corresponds to 16 times the CD resolution. Direct Stream Digital is also supported up to a resolution of DSD4 or DSD256. 

The Revolution

in the headphone amplifier is the Phonitor Matrix, with switchable crossfeed, thanks to which you can listen to music with headphones as if you are listening to speakers.

The tiring super stereo effect and the exaggerated reproduction of reverberation rooms and effects are a thing of the past.

Enjoy your music without tiring and exactly as it should be heard.

The Phonitor Matrix, in its largest expansion stage, has three adjustment parameters: Crossfeed, Speaker Angle and Center Level.

In Phonitor e the center level is preset to -1 dB and the speaker angle to 30°.

These are the most common values.

The crossfeed function determines the crosstalk of the channels, the so-called interaural level difference. There are two switch positions C1 and C2 for the intensity of the crossfeed.


Analog Inputs: XLR (balanced), RCA

Maximum input gain
32.5 dBu
Input impedance

Digital Inputs: DAC768xs (optional)

Coaxial SPDIF (RCA), PCM sample rates
44.1/48/88.2/96/176.4/192 kHz
Optical SPDIF (Toslink F06), PCM sample rates
44.1/48/88.2/96/with Glass fibre <1m: 176.4/192 kHz
USB (B), PCM sample rates
44.1/48/88.2/96/176.4/192/352.8/384/705.6/768 kHz
USB (B), DSD over PCM (DoP), sample rates
2.8 (DSD64), 5.6 (DSD128), 11.2 (DSD256) MHz
0 dBFS calibrated to
15 dBu

Balanced Headphones Output: 4-pol XLR (balanced)

Pin wiring
1 = L (+), 2 = L (-), 3 = R (+), 4 = R (-)
Source impedance
0.36 Ω
Damping factor (40 Ω)
Frequency range (-3 dB)
10 Hz – 300 kHz
Crosstalk (1 kHz)
-90 dB
THD + N (10 Hz – 22 kHz, 0 dBu)
0.00091 %
Noise (A-weighted)
-98 dBu
Output power (1 kHz, 1% THD, 600 Ω)
2 x 8 W
Output power (1 kHz, 1% THD, 300 Ω)
2 x 3.5 W
Output power (1 kHz, 1% THD, 32 Ω)
2 x 0.7 W
Dynamic range
130.5 dBu

Standard Headphones Output: 6.35 mm (1/4") TRS Jack

Pin wiring
Tip = Left, Ring = Right, Sleeve = GND
Source impedance
0.18 Ω
Damping factor (40 Ω)
Frequency range (-3 dB)
10 Hz – 300 kHz
Crosstalk (1 kHz)
-90 dB
THD + N (10 Hz – 22 kHz, 0 dBu)
0.00091 %
Noise (A-weighted)
-103 dBu
Dynamic range
135.5 dB
Output power (1 kHz, 1% THD, 600 Ω)
2 x 2.7 W
Output power (1 kHz, 1% THD, 300 Ω)
2 x 5 W
Output power (1 kHz, 1% THD, 32 Ω)
2 x 1 W

Internal Linear Power Supply with Shielded Toroidal Transformer

Operating voltage for analog audio
+/- 60 V
Operating voltage for relays and LEDs
+ 12 V
Operating voltage for optional DAC768xs
+7 V, +3.3 V

Power Adapter

Mains voltage (selectable, see fuse chamber)
230 V AC / 50; 115 V AC / 60 Hz
Fuse for 230 V
T 500 mA
Fuse for 115 V
T 1 A
Power consumption
max. 40 VA
Stand-by power consumption
< 0.3 W

Dimensions & Weight

W x H x D (width x height incl. feet x depth)
278 x 57 x 300 mm

11 x 2.24 x 11.81 inch
Unit weight
3.8 kg

8.38 lbs
Shipping weight (incl. packaging)
5 kg

11.02 lbs

Reference: 0 dBu = 0.775V. Technical changes reserved.

Slimmer is smarter

The Drivers

Mac OS & iOS

No driver installation required for Mac or iOS devices (class compliant).

iOS devices must be connected using the Apple camera adapter.



To operate with a higher than the standard sample rate this driver installation is required.

Product Reviews

SPL Audio - Phonitor e Headphone Amp with DAC - Discontinued


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