No amp can do that it's virtually impossible.
Same watts at 8 and 4 ohms?
I'm in the market for an integrated amp and trying to sort through tech specs. My understanding of the tech aspects of hi-fi gear is limited. Looking for some clarity in regard to watts-per-channel specs.
It is my understanding that wpc at 4 ohms is typically 1.5x -2x the wpc at 8 ohms.
But I'm seeing a number of respectable mid-fi integrateds with the same wpc for both 8 and 4 ohms. The NAD 388 is one and I think this is true for several of the Cambridge Audio units at a similar price point ($1500-$2000).
The NAD features make a point of saying " 4-ohm stable for use with a wide range of speakers".
Would appreciate any insight to what these specs mean and what 4 ohm stable really means to me. My speakers are 4 ohm speakers.
Thanks,
George
It is my understanding that wpc at 4 ohms is typically 1.5x -2x the wpc at 8 ohms.
But I'm seeing a number of respectable mid-fi integrateds with the same wpc for both 8 and 4 ohms. The NAD 388 is one and I think this is true for several of the Cambridge Audio units at a similar price point ($1500-$2000).
The NAD features make a point of saying " 4-ohm stable for use with a wide range of speakers".
Would appreciate any insight to what these specs mean and what 4 ohm stable really means to me. My speakers are 4 ohm speakers.
Thanks,
George
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- 102 posts total
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 |
- 102 posts total