Same watts at 8 and 4 ohms?
invalid, georgehifi, This is the spec page from D’Agostino Relentless welding machine. https://dandagostino.com/products/relentless-monoblock.php Please show/indicate to me where the ’incorrect’ or ’misleading’ information is. |
invalid, georgehifi, No need to get your knickers in a knot, the only way to prove it is with independent testing, and not believing the manufacture Like I said bet the 8ohm is under quoted just like his Progression Monoblocks are below. Progression Mono: D’agostino specs 8ohm- 500w 4ohm-1000w 2ohm-2000w Stereophile tested specs 8ohm-595w 4ohm-943w 2ohm-750w (went into turn off protection mode) It’s impossible to double exactly there are always losses, if it did it would be saying it’s like inventing perpetual motion. Cheers George |
The bigger the power supply and the bigger the output stage the higher the wattage into 8 ohms. They may spec an amp at 1500 watts into 8ohm but if it's actually measured by a independent 3rd party they always come up with a higher wattage than the spec sheet from the manufacturer says. Take my krell amp for instance it's spec says 300 watts into 8ohm but stereophile measured it at over 330 watts. |
Building amps with huge power output is one of Dan D'Agostino's top priorities. They are all advertised as doubling down into 4 and 2ohms. Here is what Stereophile measured in its review of the Momentum Monoblocks: Specified as having a maximum power of 300W (24.8dBW), the Momentum comfortably exceeded that rating, clipping at 405W into 8 ohms (26.1dBW), with clipping defined as the point when the percentage of THD+noise in its output reaches 1% (fig.5). Fig.6 reveals that the amplifier clips at 640W into 4 ohms (25.05dBW), while into 2 ohms (fig.7), the amplifier puts out 1115W (24.45dBW). As with Dan D'Agostino's earlier amplifier designs for Krell, the Momentum is a powerhouse! https://www.stereophile.com/content/dan-dagostino-momentum-monoblock-power-amplifier-measurements |
Like I said, impossible to exactly double. And understating the 8ohm wattage figure But these are better "close to doubling" figures down to 2ohms than any Class-D’s or even linear Mosfets with complimentary push pull output stages can achieve. The Momentum comfortably exceeded that rating, clipping at 405W into 8 ohms 640W into 4 ohms 1115W into 2ohms And yes Dan D’Agostino’s Krells, and the Momentum’s are powerhouses, that others claiming to be and can’t should try to mimic. Cheers George |
