almarg
Responses from almarg
| Doesn't DAC Do Heavy Lifting vs. Transport? Following up on my previous post, the specification for consumer SPDIF, IEC 60958-3 defines a "normal" specification for long-term timing accuracy of 1000 parts per million, or 0.1%. That corresponds to a maximum error across a 74 minute cd of 4.4... | |
| Doesn't DAC Do Heavy Lifting vs. Transport? Bigbucks5: I guess that I always have assumed (there it is) that an external DAC doesn't ever rely on the transport for data timing. Instead, it empties its buffer at the right time intervals according to its own clock. Therefore, the only jitter ... | |
| What direction should Hi Fi tune fuse be installed Not having experimented with it, I am not in a position to take a position on fuse orientation, but fwiw it should be pointed out that ac current does not flow in one direction, it oscillates back and forth in both directions.Regards,-- Al | |
| Weak ROTEL phono section Yes, a properly chosen outboard phono stage probably would help. The phono section of your Rotel presumably amplifies a 2.5mv input up to the specified line-level input sensitivity of 150mv. That corresponds to a gain of 20log(150/2.5) = 35.6db, w... | |
| Weak ROTEL phono section You're welcome! Another contributing factor is that the power amp, according to the specs in its manual, has an input sensitivity (for full power, and for the unbalanced inputs) of 1.6 volts (3.2 volts for the balanced inputs), while the specified... | |
| Weak ROTEL phono section I don't think that there is a problem (apart possibly from the "flatness" you mention, which I can't offer an opinion on). Having to set the volume control to 2 or 3 p.m. for phono, and much less for cd (say 10 a.m.) is very common.If you look at ... | |
| How to match preamp and power amp? Others will likely have good suggestions I have missed ...Not me! That was a REALLY excellent writeup, Mitch2.I'll just add a little emphasis to your mention in the first paragraph that power transfer is completely unimportant between preamp and p... | |
| What are the Best FM tuners? Newbee -- Enjoy the new Accuphase!Re my own tuner experiences, I'll quote from myself in another tuner thread:I've been through about a dozen tuners over the years, mostly vintage tube units, but a few modern ones as well including a Carver TX-11.... | |
| See if you can "predict" a future ground loop hum? I think that all that can be said about lifting an ac safety ground on a piece of audio equipment is that the risk of a problem is small but is not zero.But if you are saying that the sub is not on the same ac outlet as the preamp and the rest of ... | |
| See if you can "predict" a future ground loop hum? Follow-up to my previous post: My reference to ground offsets between the preamp and sub assumed that the sub is connected at line-level; let us know whether that is correct, or if it is connected to the MC402 outputs at speaker-level instead.Rega... | |
| See if you can "predict" a future ground loop hum? I'm surprised by this, because I would expect that a balanced preamp-to-power amp interconnection would be pretty much immune to ground loop hum. Are you sure that the hum is coming from the main speakers and not from the sub?I'm thinking that per... | |
| On a scale of one to ten how would you rate....... Keep in mind, though, that if common impedance coupling is not a problem in a particular setup, AND if the components are not "fully balanced" (i.e., they are unbalanced internally and only balanced at their interfaces), a balanced interface could... | |
| On a scale of one to ten how would you rate....... See the first page or two of this paper for an explanation of one of the fundamental disadvantages of unbalanced interconnections. He refers to this as "common impedance coupling" of inter-chassis noise currents with signal return currents, caused... | |
| tuner better than turntable ? thread. Yes, I recall that thread. Did you compare the two tuners in the same system and room? Otherwise, how do you know that the caps were responsible for the differences you heard?And was the 108 the original older version, or the updated 108T version?... | |
| Sundsmith rebuild. Dgarretson,FYI, I sent my Grace F9E Ruby to Soundsmith in early October, and the email in which they provided me with an ra number included this statement:Mr. Ledermann is recovering from some serious health problems, but is doing his best to catc... |