They're called "earspeakers." Known for their wide and airy soundstage, the Stax Lambda, paired with the ultra-clean SRD-7/SP will redefine your reference tracks. Turn any space into your private listening room.
- Production
- 1979-82
- Condition
- 8/10
- Serial No.
- 24823 / 08396-OB
- Orig. MSRP
- $799
- Restoration
- Full 30-point service check
- Passed with flying colors
- Cleaned controls, switches, and chassis
- Factory Specs
SR Lambda
Type Push-pull Electrostatic headphones
Frequency response 8Hz–35kHz (no tolerance specified)
Sensitivity 102 dB / 100V RMS @ 1,000 Hz
Impedance 122 kOhms @ 10,000 Hz
Design Open-back
Transducer principle electrostatic, push-pull
Electrostatic capacitance 130 pF, including cord
THD 0.001% at 95dB
Bias voltage 230VDC
Connector Stax six-pin normal-bias
Weight (headset) 11.6oz
SRD-7/SB
Type Headphone Amplifier
Frequency Response 10Hz-30,000Hz (±1.2dB)
Distortion Rated 0.02% THD at 100 V at 1 kHz while driving an SR-Lambda
Bias voltage 230VDC
Dimensions 2.9"W x 4.75"H x 8.5"D
Weight 3.75 lbs.
- Documentation
Stax SR Lambda / SRD-7SB Owner's Manual
Stax SR Lambda / SRD-7SB Review
- Liner Notes
The sound from these Lambda's is simply extraordinary. It is natural, clean, open, delicate, powerful, detailed, precise and revealing, all at the same time. There is no distortion. Every instrument, voice and multitrack layer is heard distinctly, never mushed into anything else. Instead of loud walls of crud, one hears everything separately, regardless of how loud you enjoy your music. The Stax SR-Lambda electrostatic headphones are the most perfect audio transducer I have ever heard.
-Ken Rockwell
- Stock No.
- 8139688149213
They're called "earspeakers." Known for their wide and airy soundstage, the Stax Lambda, paired with the ultra-clean SRD-7/SP will redefine your reference tracks. Turn any space into your private listening room.
Production
1979-82
Condition
8/10
Serial No.
24823 / 08396-OB
Orig. MSRP
$799
Restoration
- Full 30-point service check
- Passed with flying colors
- Cleaned controls, switches, and chassis
Factory Specs
SR Lambda
Type Push-pull Electrostatic headphones
Frequency response 8Hz–35kHz (no tolerance specified)
Sensitivity 102 dB / 100V RMS @ 1,000 Hz
Impedance 122 kOhms @ 10,000 Hz
Design Open-back
Transducer principle electrostatic, push-pull
Electrostatic capacitance 130 pF, including cord
THD 0.001% at 95dB
Bias voltage 230VDC
Connector Stax six-pin normal-bias
Weight (headset) 11.6oz
SRD-7/SB
Type Headphone Amplifier
Frequency Response 10Hz-30,000Hz (±1.2dB)
Distortion Rated 0.02% THD at 100 V at 1 kHz while driving an SR-Lambda
Bias voltage 230VDC
Dimensions 2.9"W x 4.75"H x 8.5"D
Weight 3.75 lbs.
Documentation
Stax SR Lambda / SRD-7SB Owner's Manual
Stax SR Lambda / SRD-7SB Review
Liner Notes
The sound from these Lambda's is simply extraordinary. It is natural, clean, open, delicate, powerful, detailed, precise and revealing, all at the same time. There is no distortion. Every instrument, voice and multitrack layer is heard distinctly, never mushed into anything else. Instead of loud walls of crud, one hears everything separately, regardless of how loud you enjoy your music. The Stax SR-Lambda electrostatic headphones are the most perfect audio transducer I have ever heard.
-Ken Rockwell
Stock No.
8139688149213
