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SPECIFICATIONS
HEADPHONE SPECIFICATIONS:
Configuration
Open-back; circumaural type
Transducer
Balanced-Drive High Precision Electrostatic Laminate (BD-HPEL)
Effective Diaphragm Area
3570 mm
2
Frequency Response
10 Hz – 60 kHz
Output Level (SPL)
Compliant with EN 60065/A12:2011 (EN50332) when driven by APERIO
electronics (for all inputs); digital input:
∽
104 dB; analog input:
≥
106 dB
(continuous, est.)
Ear and Headband
Cushions
“Cabretta” top-grain, sheepskin leather; perforated surface on ear cushions
Input
Polarized, 4-pin, self-latching connectors for left and right channels
Drive Cable
Dual mono, shielded, ultra-low capacitance; silver-plated OFHC ultra-fine
stranded copper, with silicone insulation and Kevlar reinforcement; 2 meter
length
Weight
399 grams (14 oz.), without cable
AMPLIFIER SPECIFICATIONS:
Balanced Analog Inputs
Dual (female) XLR jacks; switchable (high / low) input range; 18 dBu / 10 dBu
Unbalanced Analog Inputs
Dual RCA jacks; switchable (high / low) input range; 5.0 V
rms
/ 2.1 V
rms
USB Digital Input
Type B jack; USB 2.0; accepts digital audio formats up to 32-bit / 384 kHz PCM
and DSD (DSD64/DSD128/DSD256) via DoP or Native
Network (Ethernet LAN)
Digital Input
RJ45 jack; DLNA-compatible; accepts digital audio formats up to 32-bit / 384 kHz
PCM and DSD (DSD64/DSD128/DSD256) via DoP or Native
AES3 (AES/EBU) Digital
Input
XLR (female) jack; accepts digital audio formats up to 24-bit/192 kHz PCM
S/PDIF Coaxial Digital Input
RCA jack; accepts digital audio formats up to 24-bit/192 kHz PCM
Line Outputs
Balanced and unbalanced, high current outputs; +5 dB gain; switchable
Digital Formats
PCM: 16-32 bit / up to 384 kHz; DSD: up to 256 f
s
DoP and Native
Equalization
HP only: digital EQ (DSP) for PCM sources; analog EQ for analog and DSD sources
Digital Signal Processing
(DSP)
64-bit (double-precision) fixed-point processing at native sample rates
Switchable Gain
Rear panel switch; high level / low level selection for balanced analog input
(professional audio and consumer levels) and unbalance analog input