atmasphere
Responses from atmasphere
| ARC Ref 3 Main Output Impedance Question Bifwynne, sorry, seems I have been shooting my mount off; upon looking at the specs of the preamp, I have to agree. It did not occur to me that the preamp was not designed to drive 10K as a minimum. | |
| What does one purchase after owning horns? Larry, If I get what you are saying, you have even more reason to check out horns. Regular dome tweeters don't handle very much power (2 watts is common). Most horn tweeters handle about the same power, but are *also* lot more efficient, effective... | |
| ARC Ref 3 Main Output Impedance Question Bifwynne, what this means is that the preamp will drive a solid state amp the same way it would as if the tube amp was not even there.ARC is pretty careful to make sure their preamps will drive the 10K input impedance of a solid state amp. So if i... | |
| What does one purchase after owning horns? Larry, I too like a nice flat frequency response. I'm not happy with it if I hear deviations or rolloffs at the extremes. So my system is a hybrid- horns on top and bass reflex woofers on the bottom.One thing about perceived frequency response tho... | |
| ARC Ref 3 Main Output Impedance Question Bifwynne, the issue lies with the input of your amplifier. If it is differential with a high Common Mode Rejection Ratio, you will be fine even if the loading of the preamp is unequal (the amp will do fine even if one input has 1/4 the input volta... | |
| Atma-Sphere MA60's with Proac Speakers If the speaker has a 4 ohm dip at the crossover frequency I would have no worries. In this case we have have two woofers in parallel to create the 4 ohm impedance- that is not a dip. So a set of ZEROs is recommended as this is not an eight ohm nom... | |
| ARC Ref 3 Main Output Impedance Question Hifigeek1, we've built tube buffer versions of our preamp. They have a direct-coupled output. IME what you run into with tube buffers is voltage loss that is more noticeable than with semiconductors. As long as your sources have enough voltage tha... | |
| OTL Tube Amp for Maggie 3.6? Audioquest4life, there is nothing about 6K- but he did say something about trying to keep it under 6 *figures* :) | |
| What does one purchase after owning horns? Mapman, I've been involved with some field-coil driver design exercises in the last few years. It is true that you get greater efficiency with field coils, but if so it will only be by 1 or 2 db. The main thing that governs efficiency is precision... | |
| who makes auto biasing tube amps w/200 wpc the Atma-Sphere MA-2 is autobias. | |
| ARC Ref 3 Main Output Impedance Question Normally if you have a balanced circuit, 20K should be no problem. Balanced circuits **should** be able to drive 600 ohms- so 20K should be like a walk in the park. But many high end audio products don't support the balanced standard, and ARC is o... | |
| An analog question for those who record Davidnboone, if you are doing cassette you will have to find a machine and get it refurbished. Pioneer made some very interesting high-end machines that used Dolby S about 20 years ago- very nice sound, very quiet. Otherwise a Nakamichi is the thi... | |
| Anyone read TAS's Ten Most Significant Amps? Isn't the H/K Citation 2 on that list? I would not regard that as an old-timer's issue- that amplifier *is* pretty significant- it has wide bandwidth, low distortion and decent power (for the day), and if properly refurbished keeps up with modern ... | |
| What does one purchase after owning horns? Chadeffect, it does appear the newer Trio has a higher impedance. Their website does not have a lot of technical data, but it seems pretty sure that 3 of the 4 passive crossover components must be caps. If a choke is added to the bass horn, the ov... | |
| What does one purchase after owning horns? T_bone, In the case of Avantgardes, all you have to do is look at what sort of amplifier the designer is using (that is the case with most speakers). He uses a low power transistor amplifier, which explains the 'crossover' of the Trio (its all cap... |