Denon 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
DR-750	1977	2	35-18	0.045		65	B	Manual	No	Closed	2	12.5	1400
DR-350	1977	2	35-16	0.058		64	B	Manual	No	Open		7.9	450
DR-330 /          DR-F3*	1980	3	20-22	0.04		67	B	Manual	No	Open		7.0	500	*Japanese model
DR-320 /          DR-F2*	1980	3	20-22	0.04		67	B	No	No	Open		7.0	425	*Japanese model
DR-240 /          DR-F1*	1980	2	25-19	0.04		65	B	No	No	Open		7.0	350	*Japanese model
DR-F8	1982	3	20-22	0.025		73	B/C	Auto	No	Closed		7.5	575
DR-F7	1982	3	20-22	0.027		73	B/C	Auto	No	Closed		7.5	500
DR-F6	1982	3	20-22	0.027		73	B/C	No	No	Closed		7.5	425
DR-M4	1983	3	20-23	0.027		73	B/C	Auto	No	Closed		6.0	595
DR-M3	1983	3	20-23	0.027		73	B/C	Auto	No	Closed		6.0	495
DR-M2	1983	3	20-23	0.027		73	B/C	Manual	No	Closed		6.0	395
DR-M44	1984	3	30-18	0.035	56	75	B/C	Auto	No	Closed		6.4	650
DR-M33	1984	3	30-18	0.04	56	75	B/C	Manual	No	Closed		5.7	500
DR-M22	1984	3	30-17	0.045	56	75	B/C	Manual	No	Open		5.6	420
DR-M11	1984	2	30-16	0.045	56	75	B/C	Manual	No	Open		5.6	320
DR-M44HX	1985	3	25-20	0.035	56	75	B/C/H	Auto	No	Closed		6.4	600
DR-M33HX	1985	3	25-20	0.04	56	75	B/C/H	Manual	No	Closed		5.7	500
DR-M10	1985	2	35-17	0.05		72	B/C	Manual	No	Open	3	5.6	250
DR-M30HX	1986	3	25-20	0.045		73	B/C/H	Manual	No	Open		5.4	500
DR-M20	1986	3	25-19	0.045		73	B/C	Manual	No	Open		5.4	400
DR-M15HX	1987
DR-M14HX	1987	2	25-18	0.045		72	B/C/H	Manual	Yes	Open	3	4.5	400
DR-M12HX	1987	2	25-18	0.045		72	B/C	Manual	Yes	Open		4.5	350
DR-M10HX	1987	2	25-18	0.05		72	B/C/H	Manual	No	Open	3	5.6	280
DR-M34HR	1988	3	25-20	0.045		75	B/C/H	Manual	No	Open		5.6	500
DR-M24HX	1988	3	25-20	0.045		73	B/C/H	Manual	No	Open		5.4	450
DRR-680	1989	2	20-19	0.06		74	B/C/H	Manual	Yes	Open		4.2	350
DRM-800	1989	3	20-20	0.038		75	B/C/H	Manual	No	Closed		4.8	500
DRM-700	1989	3	25-20	0.045		73	B/C/H	Manual	No	Open	3	4.8	400
DRM-600	1989	2	20-20	0.055		74	B/C/H	Manual	No	Open		4.1	350
DRM-500	1989	2	25-18	0.055		74	B/C/H	Manual	No	Open	2	3.9	275
DRS-810	1991	3	20-20	0.038		75	B/C/H	Manual	No	Closed	4	6.6	500	Horisontal tape transport
DRS-610	1991	2	25-18	0.055		74	B/C/H	Manual	No	Open			300	Horisontal tape transport
DRR-780	1991	2	25-18	0.055		74	B/C/H	Manual	Yes	Open	2		400	Horisontal tape transport
DRM-710	1991	3	20-20	0.038		75	B/C/H	Manual	No	Closed	3		400
DRM-510	1991	2	25-18	0.055		74	B/C/H	Manual	No	Open	2	5.4	250
DRR-730	1992	2	20-19	0.055		74	B/C/H	Manual	Yes	Open	2		320
DRS-640	1993	2	20-19	0.055		74	B/C/H	Manual	No	Open	2	5.1	300	Horisontal tape transport
DRM-740	1993	3	20-20	0.038		75	B/C/H	Manual	No	Closed	3	4.2	400
DRM-540	1993	2	25-18	0.055		74	B/C/H	Manual	No	Open	2	5.4	300
DN-720R	1993	2	25-19	0.055		74	B/C/H	Manual	No	Open	2	4.7	500	Professional, Pitch control
DN-730R	1993	2	25-19	0.055		74	B/C/H	No	No	Open	2	4.7	475	Professional, Pitch control
DRM-650S	1995	2	20-19	0.055		77	B/C/S/H	Manual	No	Open	2	5.0	300
DRM-550	1995	2	20-19	0.055		74	B/C/H	Manual	No	Open	2	4.1	250
DN-790R	1995	3	20-20	0.038		84	B/C/S/H	Manual	No	Closed	3	5.1	1000	Professional, Balanced Input/Output, Pitch control
DRM-555	1999	2	20-17	0.08		74	B/C/H	Manual	Yes	Open	2	3.6	250	Quick auto reverse