Aiwa / Excelia 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
AD-1800	1976	2	30-18	0.05	59	65	B/DNR	Manual	No	Open	1	7.5	450
AD-1600	1976	2	30-17	0.07	56	62	B/DNR	Manual	No	Open	1	6.2	360
AD-1250	1976	2	30-16	0.09	50	60	B/DNR	Manual	No	Open	1	4.6	240
AD-6550	1977	2	20-17	0.05	59	65	B/DNR	Manual	No	Open	1	7.5	470
AD-6500	1977	2	30-17	0.07	56	62	B/DNR	Manual	No	Open	1	8.5	370
AD-6300	1977	2	30-16	0.09	54	60	B/DNR	Manual	No	Open	1	6.7	260
AD-6900 /       AD-F90*	1978	3	20-20	0.04	58	68	B	Manual	No	Open	2	9.5	850	*Japanese model
AD-6800 /       AD-F80*	1978	3	20-19	0.05	55	65	B	Manual	No	Open	1	10.0	650	Azimuth adjustment; *Japanese model
AD-6600	1978	2	20-17	0.04	55	63	B	Manual	No	Open	1	8.5	490
AD-6400	1978	2	20-16	0.05	55	62	B	Manual	No	Open	1	8.4	380
AD-6350	1978	2	25-17	0.08	55	65	B	Manual	No	Open	1	7.6	320
AD-L40U	1979	2	20-17	0.04	55	65	B	Manual	No	Open	2	7.7	490
AD-6900II	1979	3	20-20	0.04	58	68	B	Manual	No	Open	2	9.5	1000
AD-6700	1979	2	20-19	0.04	55	67	B	Manual	No	Open	2	9.5	750
AD-6450	1979	2	25-17	0.05	55	65	B	Manual	No	Open	2	8.4	380
AD-R500U	1980	3	20-19	0.04	54	64	B	Manual	Yes	Open	2	10.2	450	2-erase heads
AD-M800U	1980	3	20-19	0.04	58	68	B	Auto	No	Open	2	9.5	760
AD-M700U	1980	3	20-19	0.04	55	65	B	Manual	No	Open	2	7.6	490
AD-R600U	1981	2	20-19	0.035	57	78	B/C	Manual	Yes	Open	2	5.5	395
AD-3800U	1981	3	20-20	0.025	60	81	B/C	Auto	No	Closed	2	5.1	595
AD-3700U	1981	3	20-20	0.028	60	80	B/C	Manual	No	Closed	2	5.1	495
AD-3600U	1981	3	20-19	0.029	58	68	B/HX	Manual	No	Closed	2	5.3	460
AD-3500U	1981	3	25-17	0.035	58	79	B/C	Manual	No	Open	2	5.5	395
AD-3300U	1981	2	20-16	0.045	58	78	B/C	Manual	No	Open	2	6.5	370
AD-F990 /        AD-FF90*	1983	3	20-21	0.025	63	80	B/C/H	Auto	No	Closed	2	5.5	595	Auto demagnetizing, NR detector; *Japanese model
AD-F770 /        AD-FF70*	1983	3	20-20	0.025	63	80	B/C/H	Auto	No	Closed	2	5.5	495	Auto demagnetizing; *Japanese model
AD-F660 /        AD-FF60*	1983	3	20-20	0.028	63	80	B/C/H	Manual	No	Closed	2	5.5	375	*Japanese model
AD-R650	1985	3	20-19	0.035	63	80	B/C/H	Manual	Yes	Open	2	5.0	395	Auto demagnetizing, Quick auto reverse
AD-R550	1985	2	20-18	0.038	60	78	B/C/H	Manual	Yes	Open	2	5.2	320	Quick auto reverse
AD-R450U	1985	2	20-18	0.04	60	78	B/C	Manual	Yes	Open	2	4.5	250	Quick auto reverse
AD-R470	1988	2	20-18	0.065	60	78	B/C	Manual	Yes	Open	1	3.5	250	Quick auto reverse
AD-S40U	1986	3	20-17	0.028	61	78	B/C/H	Manual	No	Closed	2	4.7	330	Auto demagnetizing
AD-S20U	1986	3	20-17	0.055	61	78	B/C/H	Manual	No	Open	2	4.2	250	Auto demagnetizing
XK-009	1988	3	20-22	0.018	60	95	B/C/D/H	Manual	No	Closed	3	10.2	1100
XK-007	1988	3	20-20	0.025	60	95	B/C/D/H	Manual	No	Closed	2	8.1	900
XK-005	1988	3					B/C/H	Manual	No	Closed	3		500	Japanese model
AD-F800	1988	3	20-19	0.035	59	78	B/C/H	Manual	No	Closed	2	5.1	450
AD-F700	1988	2	20-18	0.055	59	78	B/C/H	Manual	No	Open	1	4.8	400
AD-F880	1989	3	20-19	0.035	59	78	B/C/H	Manual	No	Closed	2	5.2	450
AD-F780	1989	3	20-19	0.035	59	78	B/C/H	Manual	No	Closed	2	5.2	400
AD-F1000	1989	3	20-20	0.025	60	78	B/C/H	Manual	No	Closed	2	8.1	880
AD-R707	1990	2	20-18	0.065	61	78	B/C/H	Manual	Yes	Open	1	5.4	275	Quick auto reverse
AD-R505	1990	3	20-18	0.065	59	78	B/C/H	Manual	Yes	Open	1	3.9	230	Quick auto reverse
AD-F400	1990	3	20-18	0.065	61	78	B/C/H	Manual	No	Open	1	3.2	200
XK-S9000	1992	3	13-24	0.018	65	87	B/C/S/H	Manual	No	Closed	4	14.1	1150	Build-in 18-bit DAC, Super AMTS
XK-S7000	1992	3	13-24	0.025	61	87	B/C/S/H	Manual	No	Closed	3	11.8	949
XK-S5000	1992	3									3			Japanese model
AD-F910	1992	3	15-21	0.028	61	79	B/C/H	Manual	No	Closed	3	5.5	465
AD-F810	1992	3	15-20	0.035	60	78	B/C/H	Manual	No	Closed	2	5.1	400
AD-S950	1994	3	15-21	0.035	60	84	B/C/S/H	Manual	No	Closed	2	5.0	500
AD-S750	1994	2	20-19	0.065	59	82	B/C/S/H	Auto	No	Open	1	4.0	325
AD-F850	1994	3	15-21	0.035	60	78	B/C/H	Manual	No	Closed	2	4.5	400
AD-F450	1994	2	20-18	0.065	59	78	B/C/H	Manual	No	Open	1	3.6	250