d150a

I'm adding a recently purchased Crown D150A into my home system. It does not deliver the sound level that I expect when driven by my computer sound card or a Bluetooth to RCA box. I researched the topic a little, and of course Crown specifies exactly what it expects on the input. The manual...

**Edit 7/17/21: Skip to Post #51** **Edit 12/27/20: Now seeing +800mV on Ch.2 output via DBT; Ch.1 is OK** All original transistors and diodes, new electrolytic capacitors. I'm seeing some negative DC offset on one channel, and my outputs from the op amp do not match the schematic. Various...

DigiKey has NTE 2N3585 for $15/5 pack (here; datasheet). Mouser has Microchip 2N3585 for $31/each (here) or Central Semi for $12/each (here). Newark doesn't have any. Would you get either of the above, or find a suitable substitute NPN TO66 2A / 300V driver instead? If so ... what? I can't...

Hello all, long story short I am needing a way to properly produce 16hz, most woofers simply don't seem to be able to respond at that low a frequency. I plan to purchase a low frequency transducer and either mount it to a stud in my house or to the raised floor and power it off of a d150a II...