almarg
Responses from almarg
| Need Help From The Resident Experts The RP-5's nominal output impedance of 500 ohms doesn't quite meet the guideline I suggested, and I couldn't find any measurements indicating how high that number may become over the audible frequency range. So you might want to contact Rogue and... | |
| Need Help From The Resident Experts The lack of range on the volume control is due to the extremely and unusually high 30 db of line-stage gain. Impedance compatibility is a separate and unrelated issue.The majority of active line-stages provide gains in the area between about 6 db ... | |
| When will there be decent classical music recordings? I find that most classical recordings deliver more detail, particularly for higher frequencies, than I hear in actual concerts.... Most recordings are made to sound vibrant and alive by kicking up the top end just a little bit more than natural, b... | |
| When will there be decent classical music recordings? Be careful what you wish for. In the case of a classical symphony orchestra, to present the kind of detail you appear to be looking for a recording would likely have to be made with dozens of microphones spaced throughout the orchestra and placed ... | |
| Why the lack of Virtual System postings? I believe the biggest factor in the decline in Virtual Systems activity is that under the new format posts by others to system threads in which one has previously posted, including one’s own system thread, no longer appear in one’s forum activity ... | |
| New Transformer on the Pole Hi Hal,The sensitivity of an audio component to line voltage variations will of course vary greatly among different designs. I would expect, for example, that a well designed line-level component having a well regulated power supply will general... | |
| mc cartridge loading The PH-1 is solid state, Lew, and according to Stereophile's review (which was favorable and made no mention of the high input capacitance) "the circuit itself appears to be based on Burr-Brown OPA2134 op-amp chips." I suppose that the high capa... | |
| mc cartridge loading Thanks Ralph (Atmasphere). That all makes sense to me.I would just add that the generally unspecified input capacitance of the phono stage will add to the capacitance of the cable, and may also be significant in some cases. In fact one phono sta... | |
| mc cartridge loading I use the same cartridge as the OP, in conjunction with a Herron VTPH-2 phono stage. After briefly trying 1K and 47K loading I settled on no loading, meaning the nearly infinite input impedance of the Herron's FET-based input stage. Keith Herron... | |
| Adding a 2nd Sub to a 2 Channel System Depending on the positioning of the subs and on room acoustics it could very possibly help to smooth out and flatten the frequency response in the deep bass region, as perceived at the listening position. However I suspect that you would run into ... | |
| Synergistic Red Fuse ... John, I see in various photos and in the manual for the REF 5 that the following markings are present above the fuseholder:5A FuseSlo-BloT3.15A (230)I would interpret that to mean that you should use a 5 amp slow blow fuse, and that the reference ... | |
| New Transformer on the Pole I suspect that the likeliest explanation is simply that your line voltage changed somewhat as a result of the transformer change. Due to some combination of differences in their nominal turns ratios, differences in their turns ratios within whatev... | |
| Will changing gain affect frequency response? George makes a good point that sonic consequences can particularly be expected if a gain change is implemented in a circuit via a change in the value of a resistor in a feedback loop. Regarding Dentdog’s Zesto Leto, there doesn’t seem to be any ... | |
| SET 45 Amp Driving Dynamic Speakers One curiosity (and I would be interesting in some opinions); I used the same, midpoint volume control setting on the pre-amp for both the SS and tube amps. The volume control setting that would be used is dependent on the gain of the amp (the rati... | |
| Will changing gain affect frequency response? Ghosthouse, yes, you're right that the Fletcher-Munson Effect will not cause a change in perceived tonal balance if the volume at the listener's ears remains constant.Regarding your original question, yes it does seem conceivable that changing how... |