SPL Phonitor x Preamp, Monitor Controller and DAC
The headphone amplifier with preamplifier
Enjoy music over headphones and over speakers equally excellently with the superior VOLTAiR technology – that’s why SPL developed Phonitor x.
For all headphones:
The Phonitor x offers connections for standard headphones with jack plug and for balanced headphones a 4-pin XLR connector. Thanks to the enormous output power of 18 watts, all headphones are driven effortlessly.
Headphones or Speaker:
The OUTPUT switch turns the headphone amplifier into a preamplifier – simply switch from headphones to speakers and the selected source signal goes to both analog audio outputs, RCA and XLR. In the centre position (mute), no signal reaches the outputs. The VU meters light up red.
Volume RC:
The volume can be remote controlled with any infrared remote control, that the Phonitor x simply learns. To do this, press the IR programming button and then the buttons for louder and quieter.
The DAC768xs:
The highly acclaimed AKM AK4490 Velvet Sound™ premium DAC chip is used as the converter chip in the optional digital-to-analogue converter, 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 is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to a resolution of DSD4 or DSD256.
Main Features:
- Remote Controlled Volume
- Suitable for all headphones
- Headphones or Speaker Outputs
- Highly acclaimed AKM AK4490 Velvet Sound™ premium DAC (The DAC768xs)
Analog inputs & outputs: XLR (balanced) and RCA
- Maximum input & output gain: 32.5 dBu
- Input impedance (RCA): 20 kΩ
- Input impedance (XLR): 20 kΩ
- Output impedance: 75 kΩ
- Common mode rejection (XLR): 82 dB
- Frequency range (-3dB): 4 Hz – 300 kHz
- THD + N (10 Hz – 22 kHz, 0 dBu): 0.00085 %
- Noise (A-weighted): -103.8 dBu
- Crosstalk (1 kHz): -106 dB
- Dynamic range: 136.3 dB
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
- Pin wiring: 1 = L (+), 2 = L (-), 3 = R (+), 4 = R (-)
- Source impedance: 0,36 Ω
- Damping factor (40 ohms): 180
- Frequency range (-3dB): 10 Hz – 300 kHz
- Crosstalk (1 kHz): -90 dB
- THD + N (0 dBu, 10 Hz – 22 kHz): 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 dB
Standard Headphones Output: 6.35 mm (1/4") TRS Jack
- Wiring: Tip = Left, Ring = Right, Sleeve = GND
- Source impedance: 0.18 Ω
- Damping factor (40 ohms): 180
- Frequency range (-3dB): 10 Hz – 300 kHz
- Crosstalk (1 kHz): -90 dB
- THD + N (0 dBu, 10 Hz – 22 kHz): 0.00091 %
- Noise (A-weighted): -103 dBu
- 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
- Dynamic range: 135.5 dB
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: +5 V, +3.3 V
Mains Power Supply
- 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 100 x 300 mm: 11 x 4 x 11.81 inch
- Unit weight: 4.4 kg / 9.7 lbs
- Shipping weight (incl. packaging): 5.65 kg / 12.46 lbs
