Miscellaneous DIY Audio Projects
Miscellaneous DIY Audio Projects
The projects are listed in chronological order. For more DIY audio projects, use the navigation menu to the left.
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Dummy Speaker Load Box - 5 March 2015 ![]() Matt shares with us his build of a fantastic looking dummy speaker load box. The dummy speaker load box is reconfigurable to 2-ohm, 4-ohms, 6-ohm, 8-ohm, 16-ohm and 32-ohm loads. TMC050 wire wound power resistors from Vishay mounted to heatsinks to increase power dissipation are used for the load. The speaker load box is simple to build and will look great on the workbench. |
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DIY Stepped Attenuator Volume Control - 21 June 2012 ![]() In this DIY attenuator project Matt uses an inexpensive ladder type stepped attenuator to make a passive stereo volume control. The switched attenuator comes fully assembled and uses 1% precision metal film resistors on a make before break 2-pole (stereo) 24-position switch. Checking noise, Matt found that the stepped attenuator has a noise figure which is about 26dB below that of a PEC hot molded carbon potentiometer of the same value. This project is simple to build and should save you some money if you are in the market for a passive hi-fi volume control. |
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DIY Lightspeed Passive Audio Attenuator - 11 May 2009 ![]() Uriah describes the operation of the Lightspeed passive hi-fi audio attenuator and provides DIY instructions to build your own. The Lightspeed passive audio attenuator uses optocouplers (LED and light dependent resistor) for the level control and there are no "contact points" through this attenuator. I've built one of the attenuators for myself and I think it really sounds great! This project is very simple to build, so take a look if you are interested in higher quality volume controls. |