Stax - International Bundle Set SR-L500MKII + SRM-500T

'FIRST LISTEN' BUNDLE

FEATURING THE SR-L500MKII + SRM-500T AMPLIFIER

The SR-L500MKII, part of STAX’s Lambda series, is an advanced electrostatic headphone that delivers precise, transparent, and natural sound reproduction with an expansive soundstage. It features upgraded ear pads, a durable headband, and lightweight design for enhanced comfort during extended listening sessions. The SRM-500T, a high-performance vacuum tube driver, is purpose-built to complement STAX headphones, delivering warm, detailed sound with rich harmonics and smooth dynamics.

Specifications

• Fixed electrode: high precision etched electrode
• Attached cable conductor: HiFC*
• Ear pad: artificial leather (skin touching portion and surrounding portion)
• Weight: 351g、479g (including cable)
• Type: push-pull electrostatic sound element, open-air type enclosure
• Sound element shape: oval
• Frequency response: 7 - 41,000Hz
• Electrostatic capacitance: 110pF
• Impedance: 145k Ω
• Sound pressure sensitivity: 101dB
• Bias voltage: 580V DC
• Cable: parallel 6-strand, low-capacity wide cable
• Cable length: 2.5m full length

SRM-500T (Vacuum Tube Driver Unit) 

• Type: FET + vacuum tube output hybrid DC amplifier configuration / driver unit
• Vacuum tube : 6FQ7 / 6CG7
• Frequency response: DC to 90kHz (when using one SR-L500 MK2)
• Gain: 60dB
• Harmonic distortion rate: 0.01% or less (at 1kHz / 100V r.m.s. output)
• Input impedance: 50kΩ (RCA), 50kΩ x 2 (XLR)
• Maximum output voltage: 300V RMS (1kHz)
• Bias voltage: DC 580V
• Operating ambient temperature / humidity: 0 to 35 ° C / 90% or less (however, no condensation)
• Input: RCA x 1 XLR x 1
• Output: RCA out
• Power consumption: 38W
• Dimensions: 195W x 102H x 376Dmm (including protrusions such as knobs)
• Weight: 3.4kg