hagtech
Responses from hagtech
| What Makes a Good RIAA or Line Stage? >>3.18uS turnover point ... switchable ... other components altered at the same time<<You are indeed correct. The 3.18us cannot simply be switched in and out. Adding the corner affects the other component values. jh | |
| MC & MM cartridge difference Most importantly, the MC carts have much lower output voltage than the MM types. Typically about 1/10th. Hence, you need 20dB more in phonostage gain.Common values are phono gain of 40dB for MM and 60dB for MC. This can vary a bit. There are even ... | |
| What Makes a Good RIAA or Line Stage? >>is frequency response at the phono stage is magnified by the time it reaches the speakers?<<No it isn't. Deviations add up, but they don't multiply. A 1dB phono error will give you a 1dB shift in frequency response at the speaker.How... | |
| Balanced in phono stages preamp? >>In a phono system that third 'terminal' (ground) is shared between both channels<<Thank you. That's the point I've been trying to make all along here. The receiver is providing the common mode reference, not the transmitter. In your ... | |
| Balanced in phono stages preamp? >>the way differential amplifiers work is that ground is ignored<<I'm ok with calling a cartridge 'differential' or 'floating single-ended'. But not 'balanced'. That is where we disagree. In my opinion 'balanced' implies more. It requi... | |
| What Makes a Good RIAA or Line Stage? >>Again, your quality sound reproduction targets/priorities are a little different from ours<<Indeed, and that is the beauty of freedom and liberty. As designers we can choose different paths. The result is that the marketplace is offe... | |
| Balanced in phono stages preamp? >>Everyone here is getting the terms differential and balanced mixed<<That would be me! Perhaps we are all in agreement technically, just not semantically. For me, "balance" is like a scale (in the original sense). Or akin to a see-saw... | |
| Balanced in phono stages preamp? >>Proof? Invert the phase of one channel of your cartridge in your system and see if it hums<<You're kidding, right?>>Balanced is hype<<There is more to balanced circuitry than is obvious to the casual observer. One signifi... | |
| Balanced in phono stages preamp? >>And since phono cartridges are balanced<<This is simply not true. I'm suprised you would continue to actively propogate this myth. If anyone understands the beauty of balanced circuits and signalling, it's you. You get it. So why pre... | |
| What Makes a Good RIAA or Line Stage? >>RIAA eq deviation no more than 0.05db<<Why?Just how many cutting lathes in the 50's and 60's were built to this specification? And let's put this into perspective by comparing to the average speaker response. Why are speakers allowed... | |
| What Makes a Good RIAA or Line Stage? Whoah, Thom! Look what you started here.I have to disagree with the assertion that a cartridge is balanced. It isn't. It's floating single-ended. To have true balanced, you need 3 signals. A reference level (return), positive polarity, and negativ... | |
| What Makes a Good RIAA or Line Stage? Other designer's comments? Well, I think you guys got it right here in that power supply design is critical to optimal performance. It is often overlooked and/or not thought of as integral to a linestage of phono design.I'm not familiar with the A... | |
| Does an integrated DAC/Headphone amp exist? You could try out the HagUsb. But it might not cost enough.jh | |
| Contact info for Galibier >>time shiftMaybe if you spin the platter backwards fast enough. I am the walrus.jh | |
| What to expect from MONO Should be same response from both channels. Difference could be gain (balance) and EQ per channel. Depends how well the phono is matched. Also azimuth setting on cart.Do you have a mono switch? This helps to cancel out stereo cart imbalances.jh |