atmasphere
Responses from atmasphere
| Can I run 2 stereo amps in bridge mono? No. You would need a buffer that has no gain but inverts phase, plugged into one channel of each stereo amp you're trying to monostrap.So you will need two such buffers, one for each speaker.The signal for one channel then goes into a Y adapter; f... | |
| Linear tracking turntables, whatever happened? The best linear tracker tonearms use the same force for movement as a pivot arm - the groove. This depends on what is meant by this statement.A number of linear trackers employ an air bearing, and thus have lateral tracking mass that is several ti... | |
| Nottingham Spacedeck vs Rega Planar 8 vs Technics SL1200G However, since the AP LP was an order of magnitude quieter than the other LP at all frequencies, and only somewhat more audible at 400Hz than at other frequencies, does this not suggest that the coupling is pretty good? Agreed that 400Hz seems ... | |
| Speakers with the most detailed midrange? (non-ESL/planar) I'm a fan of the Classic Audio Loudspeakers (+$12K).They employ a beryllium diaphragm that has a Kapton surround- and thus the midrange driver has no breakups until 35Khz. It runs from 500Hz in my speakers to 12KHz. The driver is also field-coil p... | |
| How do you properly set up a horn speaker I have Classic Audio T3.3s, very similar and have good results with them only a few inches from the wall behind them. I find it helps to have them toed in to the listening position. I recently moved, in my old room I had the speakers close to the ... | |
| DC Offset Blocker/Killer - where to buy in the USA I wish there was a video or some kind of a drawing of how to make this simple low-pass filter device but yet too complicated for me and some others.I am a graphics designer by trade and not an electrician but I am willing to give a go to make... | |
| Can I run 2 stereo amps in bridge mono? In a word, no. If you were able to invert the phase to one of the channels, then it would be possible. But the hookup you describe would lead to smoke, not just 'sparks' if you can pardon the expression. | |
| The Future of Audio Amplification I find Brunos definitions kind of useless. Most Class D have no Analog to Digital Conversion (ADC) stage, but do have comparators. Hence the feedback required. Actually the use of a comparator has nothing to do with whether feedback is needed or n... | |
| How good's your hearing a common Class-D complaint, as they have output filters to rid the switching noise that create phase shifts down to 3-5khz. Probably true of a subwoofer amp, but not any that are meant to run full range. Typical filters on a class D are 12db; if ... | |
| The Future of Audio Amplification It would, since feedback is how the switching is controlled, without feedback, there can be no switching. There are three main types of encoding. One is 'self oscillating' which requires feedback and the feedback sets the switching frequency. So ... | |
| The Future of Audio Amplification Bit late to the party Merrill already did it using the GaN transistors, I believe the SE-R1 does also.Yes, there are a number of zero feedback class D amps at this point. | |
| This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers. As long as the MOSFETS stay hard on between 20 - 20khz it will be fine :-)Yup- if they are On, then the frequency is almost irrelevant. | |
| Nottingham Spacedeck vs Rega Planar 8 vs Technics SL1200G I take it you were not able to do distortion tests also?The 400Hz peak seems to suggest that the platter pad is reflecting energy around that frequency. But on one test I would be hesitant to call it good- can you test other platter pads? | |
| Nottingham Spacedeck vs Rega Planar 8 vs Technics SL1200G Mat doesn’t have to be the same hardness as vinyl.Many people don't understand that the mat can have a big effect on the sound of the turntable.The function of the mat is two-fold: first to damp the LP, and second to damp the platter. Both are imp... | |
| This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers. The MOSFETs will be hard ON all the time- you don't have to worry about bandwidth, as the resulting circuit will be good from DC to well past 100KHz. They have some capacitance associated, but that will be negligible unless your amp is really high... |