Here are a few pics showing the progress of my latest amp build. It's a small amp @ about 70wpc. I decided to give it to my son as a Christmas present this year.
Haven't done a lot of listening yet, but we did hook it up to a new pair of DefTech Studio Monitors 350 Christmas morning, and it sounded very good indeed, for a relatively inexpensive build. Anyway, at ~70 watts it should work well for all but the most inefficient speakers.
Rick
Haven't done a lot of listening yet, but we did hook it up to a new pair of DefTech Studio Monitors 350 Christmas morning, and it sounded very good indeed, for a relatively inexpensive build. Anyway, at ~70 watts it should work well for all but the most inefficient speakers.
Rick
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That's of mild concern because this amp will never likely see 70 watts of continuous power output. Now it appears to run relatively cool at low to moderate volume levels. If it does become a future issue, a small rectangle piece of aluminum 1/16"-1/8" thick across the top and bottom of the heat-sinks will help thermally couple it with the case.
I believe under normal, modest listening levels it will perform within published temps. Data sheet suggests 0-70 degrees Celsius (C). I measured the temp this morning for about an hour with a probe attached between the heatsinks and it stabilized around 53.1 degrees C. This was at typical listening levels - at least for me. Not sure if this is too hot, but at least it's within SOP. If, in the future, it requires further heat reduction, I can easily sink it to the top and bottom of the enclosure to help dissipate more heat.
I obviously would have preferred vents in the enclosure, but I was working with what I had.
I obviously would have preferred vents in the enclosure, but I was working with what I had.
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