mulveling
Responses from mulveling
| Legacy Audio Impulse integrated amp (200W/Channel SS amp) - low volume issue Welcome to the world of gain and sensitivity. Tube amps and preamps can have deceivingly high gains. This doesn't mean that they're more powerful than a solid state amp with lower gain!! Remember that most tube circuits were designed when source... | |
| New tubes in Rogue M-180 Monoblocks Does someone try running KT-150 tube on Rogue M-180 amp ? Rogue has said this is not recommended. I tried an octet of KT150 in my VAC 200iQ's and they were just awful. That amp was designed for KT88 too. I think KT150 is best suited to amps des... | |
| Tubes becoming hard to get? To summarize: The main supply issue facing audiophiles is for power tubes - especially the big types for which there is no NOS / vintage alternative in quantity. The situation is especially dire for amps designed around KT120 and up (especially... | |
| Tubes becoming hard to get? Another company taking advantage of the situation That’s a joke. A 25% increase is way WAY below market demands right now. Upscale has had to limit customers to 4 power tubes each 180 DAYS to keep from selling out instantly. They’re trying to h... | |
| "Too much gain"? (Cary SLP05 question) This is where volume control quality comes into play. Cheaper potentiometers will often be poorly matched between Left / Right channels especially at lower volume levels. The ubiquitous Alps RK27 is OK but maybe not great here, at least when you g... | |
| Why do folks spend more on electronics than on speakers? Once you get to a certain level in speakers, it will take a LOT to "max them out" with the backing gear. Say you’ve found a high-end speaker with a voicing and aesthetic you love, you can live with its trade-offs, and it’s the right size for your ... | |
| BAT Preamp Output Design Changes - Why? The tech for both high-end capacitors and transformers has evolved in 20 years. Perhaps BAT feels the ground has now shifted in favor of transformers. The break-in time and longevity concerns are also in favor of transformers. Line level transform... | |
| Concentric drivers Concentric drivers can’t have the coils aligned, ever. Perhaps the tweeters’ backside structure is acting upon the wavefront from the woofer behind it, but the physics involved goes off into the deep end of the pool imho.... ;) The alnico/peppe... | |
| Concentric drivers I mean if you setup a big speaker on a trampoline and crank up the volume real high, maybe there could be some measurable doppler effect. But there's really not much specifically about a concentric driver to be concerned about. The woofer does ac... | |
| to bi-wire or not? Even when I've done asymmetric biwire, it's still been better than single wire. Just don't go TOO far off design principles or lengths between the two. For a while I used a 6 ft AQ Mont Blanc (12 AWG copper) on bottom and a 7 ft KE-4 (15 AWG silve... | |
| to bi-wire or not? Big difference on my Tannoy Canterbury, in favor of biwire. | |
| Which tube spots for which affects? It depends the amp, but preamp tubes and amp input/gain tubes (V1) will usually have big overall impact, especially on tone and air. The preamp slot is also going to be the most sensitive to noise and microphony, by far - so careful selection here... | |
| Rogue Audio Dark Upgrade. I am totally not recommending this (lol), but I’ve run a 12BH7 sub for 12AU7 in my Apollos for several years. I also have a friend that does the same in his Zeus. It’s a much better driver tube than 12AU7 in my experience. The driver tubes in an a... | |
| Western Electric looking for consumer feedback to make new tubes Do they really need feedback? If the Russian production goes poof or buckles under demand, then the market needs big KT tubes first, then 6H30, then smaller power tubes. Small signal tubes would be nice, but old stock is still gonna last us a whil... | |
| Anyone out there own a Clearaudio Double Matrix Pro Sonic? Yep - it’s fantastic because it has a full auto mode that cleans both sides at once so you can work a good clean in without interrupting the flow of a listening session. You can get a full clean done to dry in like 90 seconds. I could never live w... |