almarg
Responses from almarg
| How to measure the preamp output? Don’t bother. As Erik alluded to, if there’s a problem you’ll hear obvious distortion occurring on high volume musical peaks.To perform a proper measurement, you would need a measurement device that is extremely fast acting; that has bandwidth ext... | |
| Break In Experiences with Anti-Cables level 2.1 speaker cables? Although it may not help your problem, instead of connecting the sub’s negative input terminals to the amp’s negative output terminals, try connecting the sub’s negative input terminals to a chassis screw (or screws) on the amp. That is what REL r... | |
| Help: Accuphase XLR pin 3 hot into XLR pin 2 hot? (no unbalanced avail) You’re welcome, Ken. Note, though, the second from the last paragraph in my post above. If you are providing the G-18 with balanced inputs, as well as using its balanced outputs, introducing that device into the signal path would **cause** a polar... | |
| Help: Accuphase XLR pin 3 hot into XLR pin 2 hot? (no unbalanced avail) The term "hot" is somewhat misleading in the context of balanced interfaces. All it really means is that the signal polarity is "non-inverted," with the other signal in the balanced signal pair being "inverted." And if those polarities are defi... | |
| Class D is just Dandy! Good comments by Erik.In the situation Autre described in his post dated 4-29-2017 it is very unlikely that impedance compatibility issues were present. The Rogue Sphinx has a very high input impedance (more than 100K according to Stereophile's m... | |
| How much does tube brand REALLY affect sound in terms of rectifier tubes? brf 5-2-2017 ...if a rectifier is providing more than adequate DC current demand, how can a different brand of tube sound different if the DC electrical parameters are identical? The short answer is that they are not identical.Most tube chara... | |
| VAC 30/70...pick your pre? Good!As a point of information, though, your Melody SP3 is a class AB amp, and the power it draws will therefore fluctuate with the dynamics of the music, and will be much less than 350 watts most of the time. While the power consumption of the cl... | |
| VAC 30/70...pick your pre? I will only have about 5 inches of breathing room up with the 219. Hmm. Both amps are specified as consuming 400 watts of power. (Although I’m a bit surprised that the 219ia isn’t closer to something like 300 watts, or even a bit less). Nearly all... | |
| Speaker phase observation and question? From the measurements section of Stereophile's review of your speakers: The Silver 8's step response on its tweeter axis (fig.7) shows that the tweeter and midrange unit are connected in inverted acoustic polarity, the woofers in positive polar... | |
| Class D is just Dandy! Toddverrone 5-1-2017 The gods must be crazy! Great film! And as those who have seen it will realize, its mention was à propos.Regards,-- Al | |
| Break In Experiences with Anti-Cables level 2.1 speaker cables? Uberwaltz, in this thread a few months ago you indicated that you improved some deficiencies in the bass region that we and others had discussed by adding a sub, and a few weeks later you resolved them "big time" by purchasing the BAT VK600SE amp ... | |
| Amps Atma-Sphere M-60 Mono blocks OTL design Hi Bob,I’m not sure that even the ancient drugstore-type tube testers some of us remember from our childhoods measured heater-to-cathode leakage. Most of the better professionally oriented testers from those days did, however. (I have a vintage Hi... | |
| Amps Atma-Sphere M-60 Mono blocks OTL design Glad that the Full Music 6SN7s worked out well for you, Ozzy. Your findings regarding their excellent sonics are consistent with many others I’ve seen reported for their Sophia counterpart. Including feedback Ralph mentioned earlier in this thread... | |
| Preamp to amp compatability help. The rule of thumb is the input impedance of the amp should be at least 10 times the output impedance of the preamp! ... at the frequency within the audible range for which the preamp’s output impedance is highest. Which in the case of preamps havi... | |
| Pass Labs I usually refrain from commenting in threads such as this, because these kinds of discussions tend to not be constructive and to have little to do with audio. In this case, however, I feel compelled to say that the post by Aardvarkbark seems to me... |