AnalogAudio - Handbook of Cassette Decks

Model	Year	Heads	F.R., ±3dB, Hz-kHz	W&F, WRMS, %	S/N, NR off, dB	S/N, Best NR, dB	NR & Bias	Rec. Cal.	Auto Reverse	Tape Drive	Capst. Drive	Motors	Meters	Weight, kg	Price, MSRP, USD	Notes
6100	1979	2 (S)					B	No	No	Open	Belt	1	LED 8
6140	1980	2 (S)	35-19	0,045	59	65	B/HX	No	No	Open	Belt	1	LED 8	7,3	479	World's first Dolby HX tape deck
6040	1980	2 (S)	40-18	0,07	59	65	B/HX	No	No	Open	Belt	1	VU	4,3	279
6150C	1981	2 (S)	30-17	0,04	56	72	B/C	Manual	No	Open	Belt	1	LED 8	7,5	479	World's first Dolby C tape deck
6050C	1981	2 (HP)	40-18	0,05	56	72	B/C	Manual	No	Open	Belt	1	LED 8	4,1	298
6155	1984	2 (A)	30-20	0,06	59	77	B/C/H	Manual	No	Open	Belt	1	LED 12	4,8	448	World's first Play Trim
6240	1986	2 (HP)	30-19	0,06	59	77	B/C	Manual	No	Open	Belt	1	LED 10	3,8	298	DynEQ; Play Trim
6300	1987	3 (HP)	30-20	0,025	59	77	B/C/H	Manual	No	Closed	Direct	2	LED 12	5,9	900	DynEQ; Play Trim
6100 II	1988	2 (HP)	35-18	0,05	57	77	B/C/H	Manual	No	Open	Belt	2	LED 12	4,5	499	DynEQ; Play Trim
6340	1989	2 (HP)	35-19	0,06	57	77	B/C/H	Manual	No	Open	Belt	2	LED 12	4,4	400	DynEQ; Play Trim
6325	1989	2 (HP)	35-16	0,06	56	76	B/C	Manual	No	Open	Belt	2	LED 12	4,3	300	Play Trim
614	1995	2 (HP)	35-16	0,08	56	76	B/C/H	Manual	No	Open	Belt	2	FL 12	4,4	400	Play Trim
613	1997	2 (HP)	35-17	0,06	58	78	B/C/H	Manual	No	Open	Belt	2	FL 12	5,0	348	Play Trim