List of Stax products

The following is a list of Stax products, items manufactured by Stax Ltd.

Headphones

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Currently in production

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Earspeaker Model No. Release Year Bias Type Notes
SR-003MK2 2012 Pro, 5-pin In-Ear
SR-X1 2024 Pro, 5-pin
SR-X9000 2021 Pro, 5-pin Omega series, Current Flagship
SR-009S 2018 Pro, 5-pin Omega series
SR-007Mk2 / SR-007A 2007 Pro, 5-pin Omega series
SR-L300 2016 Pro, 5-pin Lambda series
SR-L700MK2 2019 Pro, 5-pin Lambda series
SR-L500MK2 2019 Pro, 5 Pin Lambda series

Discontinued

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Earspeaker Model No. Release Year Bias Type Notes
SR-1 1960 Normal, 6-pin
SR-2 1968 Normal, 6-pin
SR-3 1968 Normal, 6-pin
SR-X 1970 Normal, 6-pin
SR-3 New 1971 Normal, 6-pin
SR-X/MK2 1972 Normal, 6-pin
SR-5 1975 Normal, 6-pin
SR-X/MK3 1975 Normal, 6-pin
SR-40 1975 Electret
SR-60 1975 Electret
SR-Sigma 1977 Normal, 6-pin Sigma series
SR-50 1979 Electret Closed back
SR-Lambda 1979 Normal, 6-pin Lambda series
SR-30 1982 Electret
SR-34 1982 Electret SR-30 Electret Earspeakers & SRD-4 Adaptor
SR-80 1982 Electret
SR-5N / SR-5NB 1982 Normal, 6-pin
SR-Lambda Pro 1982 Pro, 5-pin Lambda series
SR-Gamma 1985 Normal, 6-pin Gamma series
SR-Gamma Pro 1985 Pro, 5-pin Gamma series
SR-X/MK3 Pro 1985 Pro, 5-pin
SR-Sigma Pro 1987 Pro, 5-pin Sigma series
SR-Lambda Signature 1987 Pro, 5-pin Lambda series
SR-Alpha Pro Excellent 1989 Pro, 5-pin Alpha series
SR-80 Pro 1989 Electret
SR-30 Pro 1989 Electret
SR-Lambda Spirit 1992 Pro, 5-pin Lambda series
SR-Lambda Pro Classic 1993 Pro, 5-pin Lambda series
SR-Omega 1993 Pro, 5-pin Omega series
SR-Lambda Nova Basic 1994 Pro, 5-pin Lambda series
SR-Lambda Nova Classic 1994 Pro, 5-pin Lambda series
SR-Lambda Nova Signature 1994 Pro, 5-pin Lambda series
SR-001 1995 Pro, special 6-pin In-Ear portable
SR-003 1997 Pro, 5-pin In-Ear
SR-001 MK2 1997 Pro, special 6-pin In-ear portable
SR-007 / SR-007BL 1998 Pro, 5-pin Omega series
SR-202 Basic 1999 Pro, 5-pin Lambda series
SR-303 Classic 1999 Pro, 5-pin Lambda series
SR-404 Signature 1999 Pro, 5-pin Lambda series
4070 2001 Pro, 5-pin Closed back
SR-404 Limited 2009 Pro, 5-pin Lambda series, Limited Edition, 1,000 units
SR-207 2010 Pro, 5-pin Lambda series
SR-307 2010 Pro, 5-pin Lambda series
SR-407 2010 Pro, 5-pin Lambda series
SR-507 2010 Pro, 5-pin Lambda series
SR-002 2012 Pro, special 6-pin In-Ear portable
SR-L700 2015 Pro, 5-pin Lambda series
SR-L500 2015 Pro, 5 Pin Lambda series
SR-L300 Limited 2018 Pro, 5-pin Lambda series, Limited Edition, 800 units
SR-009 2011 Pro, 5-pin Omega series

Headphone amplifiers

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Currently in production

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Stax currently produces six solid-state and three hybrid vacuum-tube/solid-state hybrid earspeaker driver units.

Driver Unit Model No. Release Year Output Voltage (RMS) Inputs Outputs Notes
SRM-001 1995 240 V 1x Miniplug 1x Pro Bias, Special 6 Pin Solid state, battery operated for portable use
SRM-252S 2010 280 V 1x RCA 1x Pro Bias, RCA Loop Out Solid State
SRM-T8000 2017 470 V 1x Balanced XLR, 2x RCA 2x Pro Bias, RCA Loop Out Vacuum tube / Solid state hybrid, Current Flagship
SRM-D10 2018 200 V 1x micro USB, 1x 1/8" analog 1x Pro Bias Solid state, with DAC
SRM-D50 2018 400 V 1x USB B, 1x TOSLINK, 1x S/PDIF, 1x RCA 1x Pro Bias Solid state, with DAC
SRM-700T 2020 340 V 1x Balanced XLR, 1x RCA 2x Pro Bias, RCA Loop Out Vacuum tube (2x 6SN7) / Solid state hybrid
SRM-700S 2020 450 V 1x Balanced XLR, 1x RCA 2x Pro Bias, RCA Loop Out Solid state
SRM-500T 2021 300 V 1x Balanced XLR, 1x RCA 2x Pro Bias, RCA Loop Out Vacuum tube (2x 6FQ7 / 6CG7) / Solid state hybrid
SRM-400S 2021 400 V 1x Balanced XLR, 1x RCA 2x Pro Bias, RCA Loop Out Solid state

Discontinued

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Driver Unit Model No. Release Year Output Voltage (RMS) Inputs Outputs Notes
SRA-4S / SRA-6S 1960 2x Normal Bias Vacuum tube
SRA-7S 1966 2x Normal Bias Vacuum tube
SRA-8S 1967 350 V 2x Normal Bias Vacuum tube
SRA-3S 1968 279 V 2x Normal Bias Vacuum tube / Solid state hybrid
SRA-10S 1974 2x Normal Bias Solid state
SRA-12S 1977 350 V 5x RCA 2x Normal Bias, 2x RCA Solid state
SRM-1 1979 370 V 1x RCA, 2x Normal Bias Solid state
SRM-1 Pro 1981 370 V 1x RCA, 1x Pro Bias, 1x Normal Bias, 1x RCA loop out Solid state
SRM-1/MK2 Pro 1982 370 V 1x RCA 1x Pro Bias, 1x Normal Bias, 1x RCA loop out Solid state
SRA-14S 1985 400 V 1x Pro Bias, 1x Normal Bias Solid state
SRM-T1 1987 300 V 2x RCA 2x Pro Bias, 1x Normal Bias, 1x RCA loop out Vacuum tube (2x 6FQ7/6CG7) / Solid state hybrid
SRM-1/Mk-2 PP 1990 370 V 1x RCA 2x Pro Bias, 1x RCA loop out Solid state
SRM-X Pro 1990 280 V 1x miniplug, 1x RCA 1x Pro Bias, 1x Normal Bias Solid state, Portable type
SRM-T1S 1993 300 V 1x Balanced XLR, 2x RCA 2x Pro Bias, 1x Normal Bias, 1x RCA loop out Vacuum tube (2x 6FQ7/6CG7) / Solid state hybrid
SRM-3 1994 300 V 1x RCA 2x Pro Bias, 1x RCA loop out Solid state
SRM-T1W 1994 300 V 1x Balanced XLR, 2x RCA 2x Pro Bias (adjustable 480–580 V), 1x Normal Bias Vacuum tube (2x 6FQ7/6CG7) / Solid state hybrid
SRM-T2 1994 630 V 1x Balanced XLR, 2x RCA 2x Pro Bias Vacuum tube / Solid state hybrid
SRM-Xh 1992 280 V 1x RCA 1x Pro Bias Solid state
SRM-212 1999 280 V 1x RCA 1x Pro Bias Solid state
SRM-252A/SRM-252II 2006 280 V 1x RCA 1x Pro Bias, RCA Loop Out Solid State
SRM-313 1999 350 V 1x RCA 1x Pro Bias, 1x Normal Bias, 1x RCA loop out Solid state
SRM-006t 1999 300 V 1x Balanced XLR, 2x RCA 2x Pro Bias, 1x Normal Bias (or Pro Bias), RCA Loop Out Vacuum tube (2x 6FQ7/6CG7) / Solid state hybrid
SRM-007t 1998 340 V 1x Balanced XLR, 2x RCA 2x Pro Bias, 1x Normal Bias (or Pro Bias), RCA Loop Out Vacuum tube (4x 6FQ7/6CG7) / Solid state hybrid
SRM-717 2000 450 V 1x Balanced XLR, 1x RCA 2x Pro Bias, RCA Loop Out Solid state
SRM-323A / SRM-323II 2006 400 V 2x RCA 2x Pro Bias, RCA Loop Out Solid state
SRM-006tA / SRM-006tII 2006 300 V 1x Balanced XLR, 2x RCA 2x Pro Bias, RCA Loop Out Vacuum tube (2x 6FQ7/6CG7) / Solid state hybrid
SRM-727A 2006 450 V 1x Balanced XLR, 2x RCA 2x Pro Bias, RCA Loop Out Solid state
SRM-727II 2007 450 V 1x Balanced XLR, 1x RCA 2x Pro Bias, RCA Loop Out Solid state
SRM-600 Limited 2009 340 V 1x Balanced XLR, 3x RCA 2x Pro Bias, RCA Loop Out Vacuum tube (2x ECC99) / Solid state hybrid, Limited Edition, 600 units
SRM-323S 2010 400 V 2x RCA 2x Pro Bias, RCA Loop Out Solid state
SRM-353XBK 2018 400 V 1 Balanced XLR, 2x RCA 2x Pro Bias, RCA Loop Out Solid state, Limited Edition, 300 units
SRM-006tS 2010 300 V 1x Balanced XLR, 2x RCA 2x Pro Bias, RCA Loop Out Vacuum tube (2x 6FQ7/6CG7)
SRM-007tA / SRM-007tII 2006 340 V 1x Balanced XLR, 3x RCA 2x Pro Bias, RCA Loop Out Vacuum tube (4x 6FQ7/6CG7) / Solid state hybrid
SRM-300 / SRM-310 2003 350 V 1x RCA 2x Pro Bias, RCA Loop Out Solid state, styled as an earspeaker stand
SRM-353X 2015 400 V 1 Balanced XLR, 2x RCA 2x Pro Bias, RCA Loop Out Solid state

Amplifier adapters

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Stax currently does not produce any amplifier adapters.

Adapter Unit Model No. Release Year Outputs Notes
SRD-1 1960 2x Normal Bias
SRD-2 1960 2x Normal Bias
SRD-3 1965 2x Normal Bias
SRD-5 1968 2x Normal Bias
SRD-7 1971 2x Normal Bias
SRD-6 1973 1x Normal Bias
SRD-4 1975 Electret
SRD-6SB 1978 1x Normal Bias Self-Bias
SRD-7SB 1979 2x Normal Bias Self Bias
SRD-X 1979 1x Normal Bias 1/4" male plug input on integral coiled cord, no RCA. Portable, uses eight C cell batteries or AC adapter.
SRD-7/Pro 1982-83 2x Pro Bias
SRD-7SB/MK2 1985 1x Pro Bias, 1x Normal Bias
SRD-X/Pro 1986 1x Pro Bias, 1x Normal Bias RCA input
SRD-P 1986 2x Electret/Pro Bias Both RCA and 1/8"(3.5 mm) inputs. Portable, uses eight C cell batteries or AC adapter.

Systems (headphone + driver)

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System Model no. Earspeaker Unit Model no. Driver Unit Model No. Notes
SRS-002 SR-002 SRM-002 In-Ear. Battery operated for portable use.
SRS-005 SR-003 SRM-212 In-Ear.
SRS-005S Mk2 SR-003mk2 SRM-252S In-Ear.
SRS-2050 SR-202 SRM-252 Basic System
SRS-2170 SR-207 SRM-252S Basic System
SRS-3170 SR-307 SRM-323S
SRS-4170 SR-407 SRM-006tS
SRS-3100 SR-L300 SRM-252S
SRS-5100 SR-L500 SRM-353X

Electrostatic loudspeakers (discontinued)

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  • ELS-4A - Electrostatic loudspeakers, 1976
  • ELS-6A - Electrostatic loudspeakers, 1976
  • ELS-F81 - Electrostatic loudspeaker, 1981
  • ESTA-4U - Electrostatic loudspeaker, 1982 (self-biasing)
  • EK-1 - Kit electrostatic speaker, 1983
  • ELS-F83 - Electrostatic loudspeaker, 1983
  • ESTA-4U Extra - Electrostatic loudspeaker, 1983 (self-biasing)
  • EK-1/MK2 - Electrostatic loudspeaker, 1984
  • ELS-F81 NEW - Electrostatic loudspeaker, 1984
  • ELS-8X BB - Electrostatic loudspeaker, 1987 (battery-biased)
  • ELS-6X - Electrostatic loudspeaker, 1988
  • ELS-8X - Electrostatic loudspeaker, 1988
  • ELS-F81X - Electrostatic loudspeaker, 1988
  • CLASS Model2 - Electrostatic loudspeaker, 1992

Tonearms

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  • UA-3 - Tonearm
  • UA-3N - Tonearm
  • UA-3NL -Tonearm
  • UA-7 - Tonearm
  • UA-70 - Tonearm
  • UA-7N - Tonearm
  • UA-70N - Tonearm
  • UA-7cf - Tonearm
  • UA-9N - Tonearm
  • UA-90N - Tonearm
  • UA-9 - Tonearm
  • UA-90 - Tonearm

Other audio products

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  • CPY - Electrostatic phono cartridge
  • CPY-MK2 - Electrostatic phono cartridge
  • ECP-1 - Equalizer/adapter for Stax electrostatic photo cartridges
  • ED-1 Monitor - Equalizer for SR-Lambda/Professional, 1988
  • ED-1 Signature - Diffuse field equalizer for SR-Lambda Signature, 1990
  • DAC-X1T - Digital-to-analogue converter, 1989
  • DAC-TALENT - Digital-to-analogue converter, 1990
  • DA-300 - Speaker amplifier
  • DA-80 - Speaker amplifier
  • CDP Quattro - CD player, 1986
  • CDP Quattro 2 - CD player, 1988

Accessories

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  • SRE-15/44 (5 meter) earspeaker cable extension cord (discontinued)
  • SRE-750 or SRE-950S (5 meter) and SRE-725 or SRE-925S (2.5 meter), earspeaker extension cords
  • HPS-2, wooden earspeaker stand
  • HPS-1, wooden and plastic earspeaker stand (discontinued)
  • CPC-1, protective cover

References

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