The first SR-Λ (Lambda) series was introduced 30 years ago, and now the SR-507 has accomplished further evolution with its new sounding body (sound element). The conventional sound element has employed simplest structure so that as wide film diaphragm area as possible can be effectively used in comparison with its external size. Taking advantage of the conventional feature, the new sound element has been packed in a tough resin case. Thus the new sound elment has realized cleaner sound and more accurate sound image. Also new thin-film material almost free from stretch through temperature or humidity has been adopted, enabling both the rich, deep low-frequency and the delicate high-frequency sound.

STAX SR-507
Price: $1050

* Woo Audio is an authorized STAX dealer.

* Shopping cart applies to the U.S. buyers only. International buyers please contact for shipping cost and payment instruction.

    Technical Specifications :
  • Type: Push-Pull Electrostatic Open-Back Earspeaker
  • Frequency response: 7 - 41,000Hz
  • Impedance: 145k Ohms (at 10kHz)
  • Sensitivity: 100dB / 100V r.m.s. 1 kHz
  • Maximum sound pressure level: 118dB / 400Hz
  • Bias Voltage: 580V DC
  • Left & Right Channel Identification: 'L' and 'R' indicated on the arc assembly
  • Ear Pads: genuiune leather (skin-touching portion). high-class artificial leather (circumference portion:)
  • Cable: parallel 6-strand, 2.5m full length, low-capacity special wide cable, 6N (99.9999%) OFC with silver plating
  • Ambient Temperature & Humidity: 0 to 35ºC / 90% max. without condensation
  • Weight: 10.4 oz without cable / 16.6 oz with cables
    Features :
  • The SR-507 employs a new sound element which is encased in a tougher resin to minimize vibration
  • New style ARC assembly. A new 10-click slider mechanism for pad adjustments achieves optimum comfort. Once adjusted, the slider will maintain its position so readjustment is unnecessary
  • Low-Capacitance wide hybrid cable. Silver plated copper wire.
  • Genuine leather ear pad. Lambskin earpad for utmost comfort.