Showing posts with label amplifier. Show all posts
Showing posts with label amplifier. Show all posts

Thursday, April 8, 2010

Remote Standby Operation

The remote jack on the back of DAC4800A and Cherry amplifiers allows you to force the unit into standby from an external source to save power. Some home theater systems have a control signal output that can be used to control the amp's standby operation.

The input takes less than a milliamp to drive. When the input is below 2V, the amp is placed in shutdown. When it is above 3V, the amp is active. When the input is not connected, the amp is active in the case of the Cherry, or controlled by the user in the case of the DAC4800A. The DAC4800A has a pushbutton standby control, and external control overrides the user setting. The Cherry series of amps does not have a pushbutton standby control.

The plug is a stabndard 2.5mm size barrel type, typically used by "wall warts".

Wednesday, September 24, 2008

Our Amps are NOT based on Ice Power Modules

We DON'T make amps with Ice Power modules! I replied recently to someone's "just another ice power amp" email comment. It takes a lot more amp design experience (20 years for me) to design high performance, high efficiency, high power amps from the ground up than to put off-the-shelf modules in a box with a power supply. Something like 90% of the digital amps out there are like that, so we're special. We designed the guts. We build the guts. We are the guts.

Digital Amplifier Company amps are built with proprietary patented technology that took more than 10 years to develop. It's a novel approach to modulation and control that allows closer-to-the-rails output swing while holding noise down as far as 120dB from max output. Really low THD is also possible with this technology, down to 0.0006% on the bench.

We are customer centric because we appreciate having the privilege of serving them. They are the reason we exist, and there's nothing quite like having customers repeatedly tell you that your design is the best they have ever heard. That makes all the hard work that goes into each amp well worth it. Thanks again.