Monthly Archives: January 2011

More Topping

Posted on January 29, 2011 by Mark K

Here’s a graph of Vo/Vin for the Topping TP30 and a more traditional budget amp, an older Audiosource amp. Nothing too special, but a more traditional design. Under a straight resistive load, both amps look reasonably flat. However, under typical … Continue reading →

Posted in Digital Music | 3 Comments

Topping TP30

Posted on January 19, 2011 by Mark K

So, I’ve been playing with the Topping TP30 USB DAC and integrated T amp. You can find them at a number of ebay sites for under $100 shipped. What do you get? You get an integrated low power T amp … Continue reading →

Posted in Digital Music | 24 Comments

W3-1878 FR curves

Posted on January 8, 2011 by Mark K

Below you’ll see the FR curves for the Tang Band 3″ full range driver. Both curves are with the driver in the the box, measured at 0.5m but normalized to 1m/2.83v so the sensitivity is 80dB. There is 5-6dB of … Continue reading →

Posted in Current Project, Drivers | 8 Comments