Dual 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	Drive	Motors	Weight, kg	Price, MSRP, USD	Notes
C901	1974	3	20-15,5	0.07	51	60	B	Manual	Yes	Open	1	7.0	450	2 erase heads
C939	1976	3	20-17	0.04	60	69	B/FM	Manual	Yes	Open		6.9	580	2 erase heads
C919	1976	2	20-17	0.04	60	69	B/FM	Manual	No	Open		6.5	450
C819	1978	2	20-17	0.05	59	67	B	No	No	Open	2	9.1	430
C809	1978	2	20-17	0.06	57	65	B	No	No	Open	2	8.2	300
C839RC	1979	3	20-20	0.03	60	69	B	No	Yes	Closed	2	10.0	875	2 erase heads, Pitch control
C830	1979	3	20-20	0.035	60	69	B	No	No	Open	2	10.0	500
C820	1979	2	20-19	0.04	59	67	B	No	No	Open	2	7.8	420
C810	1979	2	20-17	0.045	59	67	B	No	No	Open	2	7.9	330
C812	1980	2	20-19	0.04	59	67	B	No	No	Open	2	10.0	300
C844	1981	3	20-20	0.025	60	82	B/C	No	No	Closed	2	10.0	700	Two speeds
C828	1981	3	20-19	0.04	60	69	B	No	Yes	Open	2	9.1	500	2 erase heads
C822	1981	2	20-19	0.04	59	67	B	No	No	Open	2	7.9	375
C814	1981	2	20-18	0.045	57	66	B	No	No	Open	2	7.9	300
C818	1985	2	25-18	0.045	60	74	B/C	Auto	Yes	Open	2	6.8	300
CC5050	1987	3	25-17	0.06	60	76	B/C	Auto	No	Open	2		400
CC5850RC	1989	3	25-19	0.05	60	76	B/C/H	Auto	Yes	Open	2	6.4	505
CC8050	1990	3					B/C/H	Auto	No	Open	2
CC8040	1990	2					B/C	Auto	No	Open	2
CC8065RC	1992	3	25-15	0.06	60	75	B/C/H	Auto	Yes	Open	2	5.4	440