Jeff Rowland
Al is right (as usual). This amp most likely uses PASCAL S-PRO2 class D modules. Data sheet shows minimum load of 2 ohms or 4 ohms when bridged. Bridging might create problems with your speakers gaining only about 20% of loudness. Not worth trying IMHO. http://www.pascal-audio.com/downloads/S-PRO2_Datasheet-1_20.pdf |
Hello Al, Ricred, Kijanki, and all, After reading this thread, it has led me to question my intention of using a second Class D CDA 254 amplifier, thus allowing me to use the two of them in bridged mode as monoblocs. My speakers are of course different, they being Tannoy HPD 315's, 94 db sensitivity and 8 ohms. I don't know if you can draw any conclusions without specific test results, which in any case, wouldn't be available. My particular application of these drivers are in custom 150 liter bass-reflex enclosures. I have written to Tom, at Class D Audio, about this, but the expertise available here is without peer. I'll be thankful for any information that can be provided. My apologies to Ricred for hi-jacking his thread. Regards, Dan |
Richard, the safe/conservative approach is not to add a second M525 chassis for a bridged configuration, but to move up the chain instead with an amp that inherently delivers greater power.... Within the Rowland line, that means the Continuum S2 integrated, which is also said to enhance all those audible parameters that you already like on M525. On the other hand, there are reasons why Rowland was comfortable enabling bridging via a simple toggle on the rear panel... According to all reports I have heard, M525 in bridged mode does not degrade the sound quality, and delivers larger stage/images, and greater authority. Of course, things might be different with speakers having relatively low impedance. G. |
