jaytor
Responses from jaytor
| Ditching Class A Amps due to Heat - Sort of a Poll I own a pair of Pass XA60.8s which have an idle power dissipation of 400W each. I don't think I'd consider buying an amp that use more power than this at idle. My Pass amps have not been in my system for more than nine months since I've been usi... | |
| Rear speakers, generally of lesser quality? When I bought my current house, there was a cheap home theater installed with in-wall speakers for five channels. I decided to take the in-wall speakers that were installed in the front and mount them in the ceiling slightly behind the seating pos... | |
| Open Baffle Experience @dz13 - I assume you are referring to the NX-Studios. I would say that, within their limitations, they are exceptional speakers. The NEO3 is one of the best drivers for upper midrange and treble that I’ve heard, particularly in an open baffle impl... | |
| Question About Capacitor Upgrade in Tube Amp I can see how adding too much capacitance to a regulator could cause the regulator to oscillate, but oscillation in tube amplifiers is rarely due to the power supply, and when it is, it's because the power supply has inadequate regulation (too hig... | |
| Question About Capacitor Upgrade in Tube Amp @ieales - I'd be real interested to understand how adding some film decoupling caps cross the B+ supply could cause a tube circuit to oscillate. | |
| Toroidal vs EI power amps any difference. Toroidal transformers are more compact and efficient. They generate less EMI, so are less likely to interfere with other circuits. If well potted, they can also be better mechanically isolated (less chance of buzzing). The biggest downside is they... | |
| Do Costly XLR Cables Make A Difference? I like to place my front end components on the side wall so they are not between the speakers and run long balanced cables to monoblocks which sit very close to the speakers. This allows me to use very short speaker cables, but means my Preamp to ... | |
| Break In Failed In my experience, break-in time depends a lot on the types of capacitors that are used in the crossovers. The drivers themselves generally loosen up in 20 hours or so, but the capacitors can take much longer. Many film caps, such as some of the la... | |
| Open Baffle Experience I heard the Spatial X4s and Linkwitz LX521s at Pacific Audio Fest, and both sounded excellent. IMHO, the X4s were the best sounding speakers under $10K, and the Linkwitz were among the top rooms at the show (not my favorite, but certainly among th... | |
| Open Baffle Experience GR-Research offers a model called the NX-Studio which are designed for applications where the speaker can't be placed at least 3ft from the front wall. These are a two-way design with an "open-baffle" planar-magnetic tweeter and sealed woofer. The... | |
| Open Baffle Experience When I first set up my open baffle system, I used GIK absorber/diffusers behind the speakers on the front wall. These are absorption panels with a plate mounted on the front with various holes. They are supposed to absorb low frequencies and scatt... | |
| Open Baffle Experience @mwatsme - yes, I agree that a narrow baffle helps make the speakers disappear by reducing the front baffle reflections. I think the wave guide used by the X4 does reduce the affect, but probably doesn't eliminate it altogether. I listened to a fe... | |
| Open Baffle Experience @mwatsme - I don't believe the Spatial X4 uses a horn. I think the tweeter is an AMT design with a wave guide to control dispersion, but operated as a dipole (i.e. open in the back). | |
| Open Baffle Experience @mijostyn - I assume you haven't heard the H-frame open baffle sub system developed by Rythmik and GR-Research. I do use REW and a calibrated microphone to set up my subs. There are some minor room modes to contend with, but with a little parametr... | |
| Open Baffle Experience @mijostyn - Your projects sound very interesting, but I have to disagree on the notion of OB subs. My open baffle subwoofers work exceptionally well and integrate seamlessly with the open baffle speakers. Each subwoofer uses three 12" servo contr... |