Most competent amp designs already filter out bogus AC. I would listen to the guy from Spectron...
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On High Current Amps and Regenerators
You might ask Simon for his thoughts on this Brick Wall surge protector/line filter. It is passive and transformerless, although it uses a series inductor. See this "how it works" page. A goodly number of A'goners use Brick Wall protectors, including me, although I don't recall if anyone is using one with a Class D amp. As you no doubt realize, the current draw of a Class D amp fluctuates very widely with the volume of the music. A series inductor will, to some degree, slow the responsiveness of the current supply to those fluctuations in demand. I don't know whether or not that slowed responsiveness would be quantitatively significant with this device and your amplifier. If you ask Simon about this, he should note that at the first of the two links shown above very detailed specs are provided, including a spec on "let-through slew rate," which might be particularly relevant. Regards, -- Al |
I use Furman Elite 20PFi with class D Rowland 102 amp. According to Furman's technical data it can provide 55 amperes peak current. My amp is connected to high current outputs. I don't hear any loss of dynamics or other negative effects but my amp can deliver only 150W per channel (with my 6ohm speakers) while Spectron is rated 500W per channel. Furman has very tight non-sacrificial over/undervoltage protection. If you already know about spikes in supply voltage then perhaps installing in addition "whole house" overvoltage protection at the fusebox would be wise. I'm not sure why you need to regenerate the power when good filtering might do the job and possibly you might need only overvolatge protection, but I would trust Simon who has more experience with Spectron amplifiers. |