Brent Butterworth

I often worry that people get the wrong idea when I praise a speaker for sounding "flat." By this I mean its frequency response is flat, which is a good thing. But if you ask the man on the street, I bet he'd equate flat sound with lifeless sound.

It's high time I explained what frequency response is and why flat frequency response is desirable in audio products. Not only will I explain why non-flat response is bad, I'll demonstrate it to you with some audio files I cooked up just for this article.

The speaker world is anything but conservative. Think of the different types you can buy: good ol' cones 'n' domes, electrostatics, planar magnetics, ribbons, horns, pulsating spheres, and more, mounted in all sorts of enclosures or in no enclosures at all.

The world of custom home theater is less daring. Installers want speaker systems that sound great, play loud as hell for hours on end, place reasonable demands on amplifiers, and install easily. This is why you rarely see anything but cone 'n' dome speakers used in custom home theaters.

Of the companies catering to the custom market, BG Radia is one of the few that does things differently.

Maybe back in the 1920s, when Sound + Vision was called Superheterodyne Journal, we might have reviewed some giant tube amplifier that put out 2 watts at full blast. But other than perhaps some forgotten device from audio’s days of yore, this storied publication has never tested an amplifier so small, so weak, so limited in utility as the Qinpu Q-2.

Maybe back in the 1920s, when Sound + Vision was called Superheterodyne Journal, we might have reviewed some giant tube amplifier that put out 2 watts at full blast. But other than perhaps some forgotten device from audio's days of yore, this storied publication has never tested an amplifier so small, so weak, so limited in utility as the Qinpu Q-2.