List of Stax products
Introduction The following is a '''list of Stax products''', items manufactured by Stax Ltd.
Headphones ===Currently in production=== Earspeaker Model No. Release Year Bias Type Notes SR-003MK2 2012 Pro, 5-pin In-Ear  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=== 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 ElectretSR-341982ElectretSR-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 useSRM-252S2010280 V1x RCA 1x Pro Bias, RCA Loop OutSolid 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=== 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 stateSRM-252A/SRM-252II2006280 V1x RCA1x Pro Bias, RCA Loop OutSolid 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 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.NotesSRS-002SR-002SRM-002In-Ear. Battery operated for portable use.SRS-005SR-003SRM-212In-Ear.SRS-005S Mk2SR-003mk2SRM-252SIn-Ear.SRS-2050SR-202SRM-252Basic SystemSRS-2170SR-207SRM-252SBasic SystemSRS-3170SR-307SRM-323SSRS-4170SR-407SRM-006tSSRS-3100SR-L300SRM-252SSRS-5100SR-L500SRM-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*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 *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 * "Product History". Stax.