Set: STAX SR-L300 headphones (Earspeaker) and STAX SRM-D50 headphone amplifier
Specification SR-L300 Earspeaker – (electrostatic headphones) – (https://staxaudio.com/earspeaker/sr-l300)
- Type: push-pull electrostatic, oval sound element, rear open-air type enclosure
- Frequency response: 7 – 41,000Hz
- Electrostatic capacitance: 110pF (including attached cable)
- Impedance: 145kΩ (including attached cable, at 10kHz)
- Sound pressure sensitivity: 101dB / input 100Vr.ms / 1kHz
- Bias voltage:580V DC
- Ear pad: high-quality artificial leather
- Cable: parallel 6-strand, 2.5m full length, low-capacity special wide OFC cable
- Weight: 448g (including attached cable), 322g (without cable)
SRM-D50 (Headphone amplifier) – (https://staxaudio.com/driver/stax-srm-d50)
Digital inputs: USB2.0, optical and coaxial digital input
Built-in DAC with resolution up to PCM 32/384 KHz or DSD 5.6
The VU meter shows the output power
4 mm aluminum housing (lid)
R core – power transformer for better voltage conversion
Specifications for SRM-D50:
- Frequency response: 20Hz – 40kHz (+/-3dB)
- Rated Input Level: 130mV rms
- Maximum Input Level: 30V/RCA, at minimum volume
- Maximum Output Voltage: 400V RMS (1130Vp-p)
- Gain: 59 dB
- Harmonic distortion: 0.025% or less/1kHz-10kHz /When used with SR-L series
- Input Impedance: 20kΩ (RCA)
- Bias Voltage: DC 580V
- Digital Input: USB (type B) ×1、TOSLINK Optical ×1、COAX RCA ×1
- Analog input: RCA ×1
- Mains voltage: AC 110V / 60Hz
- Power Consumption: 35W
- Operating temperature: 0 to 35 degrees (Celsius) (less than 90% humidity, non condensing)
- Dimension: 7.55(W) x 2.63(H) x 10.55(D) inches, 192(W)×67(H)×268(D) mm
- Weight: 9.9 lbs / 4.5 kg
HR 
SL 
EN