The first SR-Lambda series was introduced 36 years ago and it has further developed into a new-generation SR-Lambda with its newly designed enclosure - the new SR-L500 advanced Lambda series Earspeaker.
High uality Sound Element
Hand selected thin-film diaphragm as well as tough stainless fixed electrodes have been employed for the SR-L500. Thus, rich deep bass response, delicate high frequency and a soothing mid-range has been achieved in a balanced manner.
10-Click Type Headband Assembly
The headband (ARC) assembly of the SR-L500 is equipped with 10-click slider mechanism for head pad height adjustment adopted from SR-009 and SR-507. Once adjusted, the slider always maintains its optimal position to make readjustment unnecessary. This enables you to enjoy hours of music listening with utmost comfort.
New Low Capacitance HiFC Wide Cable
High performance pure copper HiFC developed by Hitachi are employed in the core wires. HiFC has various advantages, including similar sonic characteristics as used in SR-009 and SR-L500 and high purity 99.99999% copper wires. The entire cable is then arranged in a flat, wide format configuration to lower the capacitance.
New High Quality Synthetic Leather Earpads
New earpad design is carefully hand crafted with high quality synthetic leather for utmost comfort as well as sound performance.
The SRM-353X is the exclusive driver unit (amplifier) produced to drive the STAX SRS-5100. Carefully hand selected audio grade parts further improves tonal quality with wide frequency response. Newly added XLR input terminals allows connection of balanced outputs of audio equipment taking full advantage of its superior performance.
SRM-353X Driver Unit
Type: Push-Pull Open Back Oval Electrostatic Earspeaker Headphone
Frequency Response: 7 - 41,000Hz
Electrostatic Capacitance: 110pF (including cable)
Impedance: 145k (including cable, at 10kHz)
Sound Pressure Sensitivity: 101dB / 100V r.m.s. 1 kHz
Maximum Sound Pressure: 118dB / 400Hz
Bias Voltage: 580V DC
Ear Pads: High quality synthetic leather
Cable: HiFC parallel 6-strand, low-capacity special wide copper cable, 2.5m full length
Weight: 340g without cable / 454g with cable
Type: All-stage semiconductors, Low-noise dual FET input Class A operation, Pure balance DC amplifier
Frequency Response: DC to 90,000Hz (with 1 SR-L series Earspeaker)
High Harmonic Distortion: Max 0.01% (1kHz at 100V r.m.s. with SR-L500)
Gain: 60dB (x1000)
Input Terminal: 1 RCA with 1 RCA parallel out and XLR
Rated Input Level: 100mV / 100V Outputs
Max. Input Level: 30V (at minimum volume level)
Input Impedance: 50K(RCA) 50Kx2(XLR)
Max. Output Voltage: 400V r.m.s. (1kHz)
Standard Bias Voltage: PRO 580V x 2
Power Voltage Frequency: 117V (50Hz / 60Hz)
Power Consumption: 30W
Temperature & Humidity: 0 to 35ºC / 90% max. without condensation
Dimensions (WxHxD): 150 x 100 x 360 mm