The LM is a monolithic dual power amplifier designed to deliver 2W channel continuous into 8X loads The. LM is designed to operate with a low. LM Dual Audio Power Amplifier. The is a monolithic dual power amplifier designed to deliver 2W/channel continuous into 8 loads. The LM is designed. LM is a monolithic dual power amplifier designed to deliver 2W/channel continuous into 8 Ω loads. LM connection diagram and pdf datasheet.

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Computer speakers

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Thread starter ronv Start date Sep 5, The speakers on this computer are just run from the audio jacks from the sound card and they can barely hear themselves.


I would like to build a little amplifier so I can hear them. I can scrounge up a What would be a good IC to put with it? All the speakers I have around are small 8 ohm and could probably use some bass boost. An 8 ohm speaker will produce about 8W. But maybe your little speakers will blow up with more power than only 1W.

LM NTE Equivalent NTE IC-DUAL AF PO 2W/CHAN – Wholesale Electronics

The datasheet for the amplifier IC has the schematic and a recommended pcb design. A little speaker has trouble producing bass frequencies.

My computer speakers have 3″ 4-ohm drivers with huge magnets and rubber surrounds and produce frequencies down to 80Hz no deep bass at about 3. If you want to datsheet an amplifier that is fine. However, basic powered speakers for a computer system like these for example can be had pretty cheap. Cheaper than you could likely build just the amplifier for.

Then if you want a sub woofer a set like these can also be had pretty cheap. Your computer is giving you line out audio which really won’t drive speakers directly. Now if you want home brew the LM might be a good choice. There is no way the cheap and tiny 3″ “sub-woofer” will produce frequencies as low as 30Hz.


It will probably roll-off at Hz. They turn over computer equipment very quickly, and have tons literally of surplus computer equipment. I like Mike’s thinking and this isn’t the first thread I have seen the university surplus store mentioned.

LM datasheet & applicatoin notes – Datasheet Archive

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