lynn_olson
Responses from lynn_olson
| What Power Amplifier Should I Buy? Kevemaher, I agree about the Zu’s. I’m not a fan of any speaker with whizzer cones ... mechanical crossovers have a whole host of problems that do not respond to electronic correction. (Mostly time-domain distortion and energy storage.) The lates... | |
| What Power Amplifier Should I Buy? I should mention there are hard limits on the dynamics of a 2-way speaker with a 8" woofer and 1" dome tweeter. The only dynamic step upwards is a 3-way with a 10" or 12" woofer, 4" midrange, and 1" tweeter. But ... unless superbly engineered, 3-w... | |
| What Power Amplifier Should I Buy? Not interested in Revel, sorry. I would take Amir’s subjective opinion with a grain of salt, for the simple reason I have yet to meet any reviewer that has the same tastes as I do. I’ve been to their houses (not Amir’s) and didn’t like any of thei... | |
| What Power Amplifier Should I Buy? Well, if you want ruler-flat response and headroom, your choice is made for you: professional studio monitors, not audiophile-focused speakers. Audiophile speakers typically have woefully low efficiency, 85 to 88 dB/meter/watt, which is frankly as... | |
| What Power Amplifier Should I Buy? Hi Kevemaher! Hate to tell you this, but loudspeakers are very imperfect devices, and frankly there has only been limited progress over the last fifty years. The field is mostly limited by materials science and the cone and dome materials we have... | |
| 300B Tube Amps with 15/16 Watts Per Channel? There are oodles of 20 to 35 watt push-pull amps from the classical era of the 1950’s through the 1960’s. Most of the "mods" of these amps are nothing more than updating the coupling caps, which is a good idea anyway with an old electronic product... | |
| What Power Amplifier Should I Buy? Two subs increases bass headroom by 6 dB, as well as significantly reduces peaks and nulls from room modes. You can’t EQ out a null, which can be 15 dB or more deep, and worse, the nulls are in different parts of the room, so even measuring them i... | |
| Bose buys McIntosh Bose has every incentive to keep McIntosh and Sonus Faber intact, as "halo" consumer brands that command high prices from a loyal owner community. As long as the image is remains good, the two upmarket brands can be also be licensed for car stereo... | |
| Spatial Audio Raven Preamp I’ll amplify Don’s post. The last pair of pre-production Blackbirds are most likely the cheapest ones you will ever see. Spatial Audio Labs will try to hold the line on prices, but there are a number of imported parts in the Blackbird amplifier ..... | |
| Bose buys McIntosh I wonder if they enter the lifestyle market, like a McIntosh Dolby Atmos soundbar. Maybe with blue meters? | |
| Spatial Audio Raven Preamp I was thinking of the oddball use case of a wall-wart powered DAC driving a Purifi Class D amp module directly. Stupid, I know, but I bet some folks have tried it. I imagine it would (just barely) work. It certainly wouldn’t sound good, though. M... | |
| Spatial Audio Raven Preamp Hi Richard, that amplifier input load sounds very easy to drive. 1.5 volts to full clipping at 170 watts is very sensitive, and would require a quiet preamp. Any preamp, including ours, should drive it to ear-shattering levels. As for Ralph’s poi... | |
| Spatial Audio Raven Preamp So I doubt few, if any, designers of Class D amplifiers will use input transformers. The vast majority will use their favorite op-amp, or maybe try discrete op-amps designed for studio consoles. Boutique vendors that have a trademark "house sound"... | |
| Spatial Audio Raven Preamp Yes, the requirements for the input/buffer stage are actually quite modest, not even a headphone amp, really. But the current fad for floating 12 or 15V supplies from a switching wall wart limits the output swing and current available. Barely enou... | |
| Spatial Audio Raven Preamp True. I surmise leaving the input section of the Bruno Putzey modules as they are was a deliberate design decision on Bruno’s part. The modules are an almost-complete power amp, but are incompatible with existing RCA and XLR interfaces, due to the... |