List of Stax products

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

Headphones

Currently in production

Earspeaker Model No. Release Year Bias Type Notes
SR-003MK2 2012 Pro, 6-pin In-Ear
SR-009S 2018 Pro, 5-pin Omega series, Current Flagship
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

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

Currently in production

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-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
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-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

Discontinued

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 1997 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

Amplifier adapters

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)

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-003mk2 SRM-252S In-Ear.
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)

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

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

CPY - Electrostatic phono cartridge

CPY-MK2 - Electrostatic phono cartridge

ECP-1 - Equalizer/adapter for Stax electrostatic photo cartridges

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

SRE-15/44 (5 meter) earspeaker 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

    [1]

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