Volfenhag subwoofers are produced by VolfenhagAudio, a German concept, which produces automotive audio accesories like: car subwoofers, speakers, amplifiers, in dash and other accesories.

We start this series of Volfenhag Audio reviews with the most impressive products: the car subwoofers.
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The Primare SPA22 is a 5×120W integrated A/V amplifier and digital controller and is the natural successor to the award-winning SPA21, which was recognised around the world for its ease of use and ‘hi-fi’ sound quality. As the first of a new generation of Primare home entertainment products however, the SPA22 represents a considerable evolutionary advance in terms of design, performance, user flexibility and versatility.
SPA22 is a surround processor and amplifier which is able to further upgrade, with a plug-in board option that allows you to prolong its use in your home before you ditch it for a better model. continue reading…

NAD M3 amplifier review: is a Dual mono integrated amplifier with 2-channels of 180-watts of pure power. The NAD M3 amp offers internal switching for two pairs of speakers and tone controls as well as a second Zone 2 output with independent commands and even its own remote control.
Performance features include a precision volume attenuator with 0.5dB steps and a range of 87.5db, a remote balance control with 0.5dB steps, and a Mode control which allows stereo, left only, right only and mono settings. continue reading…

Alpine MRP-F600 is a 4/3/2 channel power car stereo amplifier and best selling family of amplifiers which offers more choices for building the right system for you, and provides flexibility and value in an aggressive design.
Alpine’s MRP F600 high-power mono amp Class-D design gives you more power, cleaner signal and tighter, deeper bass without draining your battery. Class-D provides continuous clean power to your speakers, operating at 80% efficiency far greater than conventional Class-A or B amplifiers. continue reading…