THROUGH-HOLE Audio & Video Amplifiers 1,460

Reset All

Part	Manufacturer	General IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Package Body Material	Surface Mount	No. of Functions	No. of Channels	Technology	Nominal Bandwidth	Maximum Supply Current	Power Supplies (V)	Harmonic Distortion	Package Style (Meter)	Package Equivalence Code	Sub-Category	Terminal Pitch	Maximum Operating Temperature	Gain	Minimum Operating Temperature	Terminal Finish	Terminal Position	JESD-30 Code	Maximum Supply Voltage (Vsup)	Nominal Output Power	Maximum Seated Height	Width	Qualification	Minimum Supply Voltage (Vsup)	Additional Features	JESD-609 Code	Length
S1A2220X01-IBU0	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL	THROUGH-HOLE	9	SIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1		.03 kHz	2 mA		.1 %	IN-LINE			2.54 mm	70 Cel	35 dB	-20 Cel		SINGLE	R-PSIP-T9	14 V		7.3 mm	3 mm	Not Qualified	3.5 V			21.84 mm
S1A2213B01-H0B0	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL	THROUGH-HOLE	14	HDIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1					10 %	IN-LINE, HEAT SINK/SLUG			2.54 mm	70 Cel	45 dB	-20 Cel		DUAL	R-PDIP-T14	12 V	2.2 W	5.08 mm	7.62 mm	Not Qualified	4 V			19.4 mm
KA8602B	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1	BIPOLAR	1.5 kHz	5 mA	6	.6 %	IN-LINE	DIP8,.3	Audio/Video Amplifiers	2.54 mm	70 Cel	80 dB	-20 Cel		DUAL	R-PDIP-T8	16 V	.4 W	5.08 mm	7.62 mm	Not Qualified	2 V			9.2 mm
KA2222	Samsung	AUDIO PREAMPLIFIER		THROUGH-HOLE	8	SIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1						IN-LINE								SINGLE	R-PSIP-T8	13 V				Not Qualified	5 V
KA2206N+	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	12	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	2		BIPOLAR		55 mA			IN-LINE	DIP12/16,.3TB	Audio/Video Amplifiers	2.54 mm	70 Cel		-20 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T12								e0
KA2141	Samsung	VIDEO AMPLIFIER	OTHER	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	3		85 kHz	115 mA		1 %	IN-LINE			2.54 mm	70 Cel	17.5 dB	-25 Cel		DUAL	R-PDIP-T20	12 V		5.08 mm	7.62 mm	Not Qualified	12 V			26.4 mm
S1A2213C01-H0B0	Samsung	AUDIO PREAMPLIFIER	OTHER	THROUGH-HOLE	14	HDIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1			40 mA	6/9	10 %	IN-LINE, HEAT SINK/SLUG	HDIP16,.3	Other Consumer ICs	2.54 mm	70 Cel	45 dB	-20 Cel		DUAL	R-PDIP-T14	12 V	2.2 W	5.08 mm	7.62 mm	Not Qualified	4 V			19 mm
KS22069BN	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2			55 mA		10 %	IN-LINE			2.54 mm	70 Cel	45 dB	-20 Cel		DUAL	R-PDIP-T16	11 V	2.3 W	5.08 mm	7.62 mm	Not Qualified				19.4 mm
S1D2518X01	Samsung	VIDEO AMPLIFIER	COMMERCIAL EXTENDED	THROUGH-HOLE	30	SDIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	3	BIPOLAR			5,12	1 %	IN-LINE, SHRINK PITCH	SDIP30,.4	Audio/Video Amplifiers	1.778 mm	75 Cel	18 dB	-25 Cel		DUAL	R-PDIP-T30	5.25 V		5.21 mm	10.16 mm	Not Qualified	4.75 V	IT ALSO REQUIRES 11.4V TO 12.6V SUPPLY		27.48 mm
KA2224	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	2	1	BIPOLAR	.02 kHz	10 mA	5	.1 %	IN-LINE	DIP14,.3	Audio/Video Amplifiers	2.54 mm	70 Cel	58 dB	-20 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T14	13 V				Not Qualified	4 V		e0
S1A2221A01-I0U0	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	SIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2		.03 kHz	9 mA	12	.1 %	IN-LINE	SIP8,.06	Audio/Video Amplifiers	2.54 mm	70 Cel	35 dB	-20 Cel		SINGLE	R-PSIP-T8	12 V		7.3 mm	3 mm	Not Qualified	12 V			21.84 mm
KA2504	Samsung	VIDEO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	3			110 mA		1 %	IN-LINE			2.54 mm	70 Cel	17.5 dB	0 Cel		DUAL	R-PDIP-T24	12 V		5.08 mm	7.62 mm	Not Qualified	12 V			31.5 mm
KA22241	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL EXTENDED	THROUGH-HOLE	9	SIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2	BIPOLAR	.02 kHz	4.5 mA	7	.1 %	IN-LINE	SIP9,.1	Audio/Video Amplifiers	2.54 mm	75 Cel	48 dB	-20 Cel	TIN LEAD	SINGLE	R-PSIP-T9	14 V		7.3 mm	3 mm	Not Qualified	4.5 V		e0	21.84 mm
KA2209B	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	2	2	BIPOLAR	.02 kHz			.3 %	IN-LINE	DIP8,.3	Audio/Video Amplifiers	2.54 mm	70 Cel	40 dB	-20 Cel		DUAL	R-PDIP-T8	9 V	.11 W	5.08 mm	7.62 mm	Not Qualified	1.8 V			9.2 mm
S1A2206D01-D0B0	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2	BIPOLAR		55 mA	9	10 %	IN-LINE	DIP16,.3	Audio/Video Amplifiers	2.54 mm	70 Cel	45 dB	-20 Cel		DUAL	R-PDIP-T16	11 V	2.3 W	5.08 mm	7.62 mm	Not Qualified				19.4 mm
KA386B	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1	BIPOLAR	.3 kHz	8 mA		10 %	IN-LINE	DIP8,.3	Audio/Video Amplifiers	2.54 mm	70 Cel	46 dB	-20 Cel		DUAL	R-PDIP-T8	12 V	.325 W	5.08 mm	7.62 mm	Not Qualified	4 V	COMPENSATED BANDWIDTH 60 KHZ		9.2 mm
KA2225	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2	BIPOLAR	.02 kHz	3.4 mA	3	.07 %	IN-LINE	DIP16,.3	Audio/Video Amplifiers	2.54 mm	70 Cel	40 dB	-20 Cel	TIN LEAD	DUAL	R-PDIP-T16	5 V				Not Qualified	1.6 V		e0
S1D2503X01-D0B0	Samsung	VIDEO AMPLIFIER	COMMERCIAL EXTENDED	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	3		250 kHz	180 mA	5,12	1 %	IN-LINE	DIP32,.6	Audio/Video Amplifiers	2.54 mm	80 Cel	17.5 dB	-25 Cel		DUAL	R-PDIP-T32	12.6 V		5.08 mm	15.24 mm	Not Qualified	11.4 V	IT ALSO REQUIRES 5V SUPPLY		41.91 mm
KA22211	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	SIP	RECTANGULAR	PLASTIC/EPOXY	NO	2	1	BIPOLAR	.03 kHz	6 mA	9	.1 %	IN-LINE	SIP9,.05	Audio/Video Amplifiers	2.54 mm	70 Cel	35 dB	-20 Cel	TIN LEAD	SINGLE	R-PSIP-T8	14 V		7.3 mm	3 mm	Not Qualified	5 V		e0	21.84 mm
KA22291	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL EXTENDED	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	4	BIPOLAR	.02 kHz	15 mA	9	.2 %	IN-LINE	SDIP24,.3	Audio/Video Amplifiers	1.778 mm	75 Cel	60 dB	-25 Cel	TIN LEAD	DUAL	R-PDIP-T24	12 V		5.08 mm	7.62 mm	Not Qualified	4 V		e0	22.95 mm
S1A0386A01-D0B0	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1		.3 kHz	8 mA		10 %	IN-LINE			2.54 mm	70 Cel	26 dB	-20 Cel		DUAL	R-PDIP-T8	12 V	.325 W	5.08 mm	7.62 mm	Not Qualified	4 V			9.2 mm
KA22103W	Samsung	AUDIO AMPLIFIER	OTHER	THROUGH-HOLE	17	ZIP	RECTANGULAR	PLASTIC/EPOXY	NO			BIPOLAR		180 mA			IN-LINE	ZIP17H,.08,.1,80	Audio/Video Amplifiers	2 mm	85 Cel		-30 Cel	Tin/Lead (Sn/Pb)	ZIG-ZAG	R-PZIP-T17					Not Qualified			e0
S1A0291X01-A0B0	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL EXTENDED	THROUGH-HOLE	24	SDIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2		.02 kHz	26 mA	9	.2 %	IN-LINE, SHRINK PITCH	SDIP24,.3	Audio/Video Amplifiers	1.778 mm	75 Cel	60 dB	-25 Cel		DUAL	R-PDIP-T24	12 V		5.08 mm	7.62 mm	Not Qualified	4 V			22.95 mm
KA8102	Samsung		COMMERCIAL	THROUGH-HOLE	22	SDIP	RECTANGULAR	PLASTIC/EPOXY	NO			BIPOLAR			5,9		IN-LINE, SHRINK PITCH	SDIP22,.3	Audio/Video Amplifiers	1.78 mm	70 Cel		-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T22					Not Qualified			e0
KA2212	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	9	SIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1	BIPOLAR	.02 kHz			10 %	IN-LINE	SIP9,.1	Audio/Video Amplifiers	2.54 mm	70 Cel	50 dB	-20 Cel	TIN LEAD	SINGLE	R-PSIP-T9	12 V	.5 W	7.3 mm	3 mm	Not Qualified	3.5 V		e0	21.84 mm
S1A0241A01-I0B0	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL EXTENDED	THROUGH-HOLE	9	SIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2		.02 kHz	4.5 mA	7	.1 %	IN-LINE	SIP9,.1	Audio/Video Amplifiers	2.54 mm	75 Cel	48 dB	-20 Cel		SINGLE	R-PSIP-T9	14 V		7.3 mm	3 mm	Not Qualified	4.5 V			21.84 mm
KS2206B	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	12	HDIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2			55 mA		10 %	IN-LINE, HEAT SINK/SLUG			2.54 mm	70 Cel	45 dB	-20 Cel		DUAL	R-PDIP-T12	11 V	2.3 W	5.08 mm	7.62 mm	Not Qualified				19.44 mm
KA8602N	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1					10 %	IN-LINE				70 Cel		-20 Cel		DUAL	R-PDIP-T8	16 V	.4 W			Not Qualified	2 V
KA22296	Samsung	AUDIO PREAMPLIFIER		THROUGH-HOLE	30	SDIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1						IN-LINE, SHRINK PITCH			1.778 mm					DUAL	R-PDIP-T30	10 V		5.21 mm	10.16 mm	Not Qualified	4 V			27.48 mm
KA2213	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1	BIPOLAR		40 mA	9	10 %	IN-LINE	DIP14,.3TB	Other Consumer ICs	2.54 mm	70 Cel	45 dB	-20 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T14	12 V	2.2 W	5.08 mm	7.62 mm	Not Qualified	4 V		e0	19 mm
KA2221	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	SIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2	BIPOLAR		9 mA	12		IN-LINE	SIP8,.06	Audio/Video Amplifiers	2.54 mm	70 Cel		-20 Cel	TIN LEAD	SINGLE	R-PSIP-T8			7.3 mm	3 mm	Not Qualified			e0	21.84 mm
KA8602	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1	BIPOLAR		5 mA	6	10 %	IN-LINE	DIP8,.3	Audio/Video Amplifiers	2.54 mm	70 Cel		-20 Cel	TIN LEAD	DUAL	R-PDIP-T8	16 V		5.08 mm	7.62 mm	Not Qualified	2 V		e0	9.2 mm
KA2214	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	2	1	BIPOLAR	.02 kHz			10 %	IN-LINE	DIP14,.3TB	Audio/Video Amplifiers	2.54 mm	70 Cel	44 dB	-20 Cel	TIN LEAD	DUAL	R-PDIP-T14	13 V	2 W			Not Qualified	3 V		e0
S1A2209A01-D0B0	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2		.02 kHz		6	10 %	IN-LINE	DIP8,.3	Audio/Video Amplifiers	2.54 mm	70 Cel	40 dB	-20 Cel		DUAL	R-PDIP-T8	9 V	.65 W	5.08 mm	7.62 mm	Not Qualified	1.8 V			9.2 mm
KA1222	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	SIP	RECTANGULAR	PLASTIC/EPOXY	NO	2	1		.03 kHz			.1 %	IN-LINE			2.54 mm	70 Cel	35 dB	-20 Cel		SINGLE	R-PSIP-T8	6 V		7.3 mm	3 mm	Not Qualified	2.5 V			21.84 mm
KA22101	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	12	ZIP	RECTANGULAR	PLASTIC/EPOXY	NO			BIPOLAR		200 mA	24		IN-LINE	ZIP12,.08,.1,70TB	Audio/Video Amplifiers	1.78 mm	70 Cel		-20 Cel	Tin/Lead (Sn/Pb)	ZIG-ZAG	R-PZIP-T12					Not Qualified			e0
KA2201/NN+	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		BIPOLAR		12 mA			IN-LINE	DIP8,.3	Audio/Video Amplifiers	2.54 mm	70 Cel		-20 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T8								e0
KA386S	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	9	SIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	1	BIPOLAR	.3 kHz	8 mA		10 %	IN-LINE	SIP9,.1	Audio/Video Amplifiers	2.54 mm	70 Cel	46 dB	-20 Cel	TIN LEAD	SINGLE	R-PSIP-T9	9 V	.7 W	7.3 mm	3 mm	Not Qualified	4 V		e0	21.84 mm
KA8401W	Samsung		COMMERCIAL	THROUGH-HOLE	24	ZIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		BIPOLAR		14.1 mA	5		IN-LINE	ZIP24(UNSPEC)	Audio/Video Amplifiers		65 Cel		-10 Cel		ZIG-ZAG	R-PZIP-T24					Not Qualified
KA2500	Samsung	VIDEO AMPLIFIER	COMMERCIAL EXTENDED	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	3		150 kHz	135 mA		1 %	IN-LINE			2.54 mm	75 Cel	17.5 dB	-20 Cel		DUAL	R-PDIP-T28	12 V		5.08 mm	15.24 mm	Not Qualified	12 V			37.1 mm
KA2945	Samsung	VIDEO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO			BIPOLAR		56 mA	9		IN-LINE	DIP28,.6	Audio/Video Amplifiers	2.54 mm	70 Cel		-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified			e0
KA2143B	Samsung	VIDEO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	3		110 kHz	115 mA		1 %	IN-LINE			2.54 mm	70 Cel	17.5 dB	-20 Cel		DUAL	R-PDIP-T24	12.6 V		5.08 mm	7.62 mm	Not Qualified	11.4 V	ALSO REQUIRES 0V TO 4V SUPPLY		31.5 mm
S1A0211X01-I0U0	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL	THROUGH-HOLE	8	SIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2		.03 kHz	6 mA	9	.1 %	IN-LINE	SIP8,.06	Audio/Video Amplifiers	2.54 mm	70 Cel	35 dB	-20 Cel		SINGLE	R-PSIP-T8	14 V		7.3 mm	3 mm	Not Qualified	5 V			21.84 mm
KA2206	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	12	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2					10 %	IN-LINE				70 Cel	45 dB	-20 Cel		DUAL	R-PDIP-T12	11 V	2.3 W			Not Qualified
S1D2141X01-D0B0	Samsung	VIDEO AMPLIFIER	OTHER	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	3	BIPOLAR	85 kHz	115 mA	12	1 %	IN-LINE	DIP20,.3	Audio/Video Amplifiers	2.54 mm	70 Cel	17.5 dB	-25 Cel		DUAL	R-PDIP-T20	12 V		5.08 mm	7.62 mm	Not Qualified	12 V			26.4 mm
KA2201N	Samsung	AUDIO AMPLIFIER	OTHER	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1		BIPOLAR		12 mA			IN-LINE	DIP8,.3	Audio/Video Amplifiers	2.54 mm	55 Cel		10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T8					Not Qualified			e0
KA2202N	Samsung	AUDIO AMPLIFIER	COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	PLASTIC/EPOXY	NO			BIPOLAR					IN-LINE	DIP14,.3	Audio/Video Amplifiers	2.54 mm	70 Cel		-20 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T14					Not Qualified			e0
KA22241C	Samsung	AUDIO PREAMPLIFIER	COMMERCIAL EXTENDED	THROUGH-HOLE	9	SIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	2		.02 kHz	48 mA		.1 %	IN-LINE			2.54 mm	75 Cel	48 dB	-20 Cel		SINGLE	R-PSIP-T9	14 V		7.3 mm	3 mm	Not Qualified	4.5 V			21.84 mm

Audio & Video Amplifiers

Audio and video amplifiers are electronic devices that increase the amplitude or power of an audio or video signal. These amplifiers are commonly used in home theater systems, music players, and sound reinforcement systems to provide a higher-quality audio or video experience.

Audio amplifiers are designed to amplify the electrical signals that represent sound, such as music or speech. These amplifiers can be classified into several types based on the way they amplify the signal. Some of the most common types of audio amplifiers include:

1. Class A amplifiers - These amplifiers use a single transistor or tube to amplify the signal. They provide high-quality sound but are less efficient than other types of amplifiers.

2. Class B amplifiers - These amplifiers use two transistors or tubes to amplify the signal. They are more efficient than class A amplifiers but can suffer from distortion at low volume levels.

3. Class AB amplifiers - These amplifiers combine the characteristics of class A and class B amplifiers, providing a balance of high-quality sound and efficiency.

Video amplifiers are designed to amplify the electrical signals that represent video, such as those from a DVD player or cable box. These amplifiers can be used to improve the quality of the video signal, reduce noise and interference, and provide a clearer picture.

Both audio and video amplifiers can be integrated into a variety of different devices, such as receivers, preamplifiers, and power amplifiers. They can also be designed to work with specific types of audio or video signals, such as analog or digital.