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About -40dBThanks. Are you able to give an idea of the magnitude of the residual? Is the wideband graph not showing this since the plot only goes to 500KHz?
About -40dBThanks. Are you able to give an idea of the magnitude of the residual? Is the wideband graph not showing this since the plot only goes to 500KHz?
Thank you. Well done!About -40dB
About -40dB
Can you show wideband plot beyond 500 kHz
Before I go into any detail, let me say up front that these amps are something special. Detail and clarity galore with a transparency that grabs your attention and doesn't let go. The amps run cool to the touch and are so small that they can be easily stashed away out of site in any system. In my opinion, they punch way above their price point and easily turn a background music system into something that cannot be easily ignored... or at least, that was my experience.
This is an extremely good amplifier, something I could live with easily if I didn't own the Modulus 286. The noise floor is very low, and you hear tiny details into the background on many recordings. The amplifier is very similar sounding to the Modulus 286 which is a major compliment! Big, bombastic dynamics, excellent tight very well delineated bass and yes, ethereal high end. Soundstaging was wide, and performers were well placed, such that you could easily distinguish the differences between them.*
Based on the Asgard's spec of 0.2ohm output impedance it will have no issue with driving BOSC.
BOSC has best performance in the 10 to 25W range so it will pair well with the 95dB speakers. This is exactly what Anand had.
@orchardaudio - Your web page for Bosc says it will have two options for gain — e.g. “Gain: 16.8dB or 6.92 (For 8 and 6Ω speakers)”. How is the gain adjusted - does it involve opening the case?
Also, you’ve said there are two different versions of the amps: a 4-ohm version and an 8-ohm version. I don’t think I’ve seen that before with solid-state equipment, although I believe some tube amps have different output taps for different speaker impedance. Can you explain the reasons for creating two versions and whether the 4-ohm version would perform suboptimally with higher-impedance speakers (say, if a user changed equipment in the future)?
I TRUST in the subjective review made by Anand, who I read for years in others forums (Audiocircle and Diyaudio). Putting your first amplifier at the level of Modulus 286 (by Tom Christiansen) is very worthwhile for you.
I assume these are made to pair with PecanPi, which has 5Vrms max output on XLR. So the 8 ohm amp with 16.8dB gain will avoid clipping at 5Vrms input, driving a 6 ohm (or 8 ohm) load, and the 4 ohm amp with 13.8dB is needed in order to use the full output of PecanPi into a 4 ohm load without clipping?If you want to use the amp with the higher gain for 4 ohm speakers you can, but you have to ensure no voltage above 3.75Vrms (~170W) on the input.
So, may I assume no issues with 200W into 6 ohms?]
While the BOSC amp was designed with the PecanPi in mind, that in no way means that it cannot work with other equipment (DACs, pre-amps, etc).I assume these are made to pair with PecanPi, which has 5Vrms max output on XLR.
Thanks for the responses.No issues.
While the BOSC amp was designed with the PecanPi in mind, that in no way means that it cannot work with other equipment (DACs, pre-amps, etc).