Invidiosulus
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Posts posted by Invidiosulus
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That space looks great!
I moved into my brick house just over eight years ago.
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A couple years ago, right after Russia invaded Ukraine, My good friend Brad, decided to go over there to help out.
he spent the next year and something helping to deliver food and medical supplies to folks in and around the Bakhmut area.
He also provided evacuation services to the elderly and infirm.
At times he was literally carrying people out of apartment buildings as they were being shelled by the advancing Russian forces.
During all of this he mentioned that he had heard a particular organ piece on public radio some years before and that it wasn’t available anywhere.
This piqued my interest, I had actually remembered Brad mentioning this same piece several years before.
I started searching.Eventually I was able to track down the website of the organist in Norway who had recorded the only known copy of the work in question.
I entered my info on his websites contact form and waited.
Within a day or two I had a response asking for my address so he could send me a copy of his CD.
A few weeks later a copy of the CD showed up at my house.
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I love this sort of thing.
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We managed to somehow avoid the big snow event yesterday.
Friends of mine 30 minutes north of here got about 10 inches and we got zilch, just lots of rain yesterday as our temps stayed in the upper 30’s until the precipitation passed us by.
This afternoon after the temp dropped into the low 20’s we started getting some flurries.
The kids have a remote day for school tomorrow so we decided to go out for a walk around town while there was still some snow on the ground.
it was around 11° by the time we got back to the house after stopping by the grocery store for some donuts and bacon for breakfast in the morning.
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4 minutes ago, danny983 said:
New headphones
This is another spammer account.
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An active DSP and a pair of amps would run that setup with ease.
The Dayton DSP-408 is super cheap and easy to use and offers a lot of features.
The Dayton DSP doesn’t specifically offer room correction but there are ways to calculate some room averages with REW and generate EQ settings.
If you are interested in tweaking crossovers, active or passive, you really need to get a calibrated mic and learn to use REW to take measurements.
Otherwise you are shooting in the dark.
On 1/5/2024 at 7:30 AM, Woofers and Tweeters said:I have had a pair of KP456 with 'refreshed' x-overs for a while and just this week put them back into my main listening room. I would love to go to active networks for the same as you.
What did you end up using? -
Years ago my brother and I were hanging out in our back yard and we heard our neighbors shooting their .22 at something.
we didn’t think much of it since they were always shooting at squirrels or snakes around the property.
A moment later we hear a wizzzzz right past us and a leaf on the branch next to my head pops loose and drifts to the ground.
Apparently they were shooting at a squirrel in a tree in the vacant area between our houses and weren’t paying attention to what was beyond their target.
IIRC @Marvel offered to shoot at the squirrel from our direction with his Mini-14.
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12 hours ago, Cacti said:
So I just got my first tube amp, CAYIN MT-12N EL84EH, (through Heresy IVs) and I have some thoughts on it. This is my first tub amp, so I wasn't familiar with the sound.
It's a push-pull type amp with third-order harmonic distortion. I would love to try an amp with second-order harmonic distortion as it is most pleasing to the ear (so I'm told).
Digital music – I'm not really loving the sound for digital music. I believe this is because the tunes have already been squashed with a digital limiter, so when you had tube harmonics and distortion and TUBE COMPRESSION at the end of the signal chain, it doesn't really work. Limiter should be the final stage, adding compression after a limiter is a no no. It sounds almost boxy, it DEF has a sound stage (but not in a good way imo) you can REALLY hear the limiter in the music.
Vinyl – This is where it really shines. Because vinyl does not have the digital limiter stage and the dynamics are preserved (at least with older music, some newer pressings use Direct Metal Mastering which does allow for a limiter in the mastering chain before pressing and is more prevalent nowadays because its cheaper and you can continue the loudness war to vinyl. UGH.) , this is where it really shines. It remains very open and it's almost a last touch of tube compression in the analog mastering chain. Chef's kiss.
In an ideal world, I think I would have two amps. Tube for vinyl, and SS for digital. Do people run this setup?
Just my initial thoughts!
You aren’t clear on what you are defining as “digital music”.
Compressed formats such as streaming and mp3 can be very different from CD etc.
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18 minutes ago, Flevoman said:
I started this topic because, despite how fantastic I found the AL5 to sound, I often heard a disturbing resonance in songs. When listening to the same songs on my headphones or other speakers, this resonance wasn't present. I could not determine the cause of what I was hearing. Recording? Acoustics? Or perhaps the resonance often mentioned in relation to the LaScala? .
Thanks to all the information obtained on this forum, assistance from @mikebse2a3, and extensive reading on Google, I now have a reasonably clear understanding of what's going on. I finally know that what I hear is a bump in the 100Hz-160Hz range.
The pronounced audibility of this bump is, in my situation at least, a combination of factors.
- First and foremost, recording plays a role. Some songs are recorded with a certain dynamic that enhances the effect.
- In my case, room acoustics also play a definite role. I remember, at the beginning of this journey, placing the speakers lengthwise in the room. It didn't eliminate the issue, but it reduced it. However, placing my setup this way is not an option.
- My personal sensitivity to this bump is undeniable. I am convinced that I perceive it more strongly than others. It's an annoying background noise that doesn't align with the open and detailed character the speaker possesses. However, others who have listened to my setup didn't hear what I meant or simply didn't find it bothersome.
- The speaker itself, I am convinced that the LaScala accentuates this range. Whether it's due to cabinet resonance or horn properties, I'm not sure. But the LaScala emphasizes the range around 100Hz-160Hz. I am convinced of this because there is ample information, including tests with LaScala, consistently showing a bump around 150Hz. Additionally, I conducted an acoustic measurement with DSpeaker, and comparing it with other measurements reveals a consistently similar curve around 100Hz-160Hz.Thanks to a tip from Mike, I bought a DSpeaker to address acoustic issues. It's not exactly an audiophile device, but it works. When the bump in that range is corrected by DSpeaker, the sound I found so bothersome is indeed gone. I am pleased with this because now I know exactly what it is, where it is, and I have control over it. So you might think, let DSpeaker do its job, and I have nothing to complain about. Well, not entirely.
With this fantastic correction, the speaker's character has also changed significantly. The sound is much cleaner; I can better follow the low end and hear more detail. When switching between correction on and off, the difference is significant. Only when the bump is truly gone do you realize how much coloration it adds to the music. However, I miss the punch and kick. The sax lacks body, and the same goes for the vocals—they sound thinner. Where has that typical LaScala sound gone?
Interestingly, my own conclusion is that the LaScala's sound character seems to derive in part from the bump. Eliminating it also eliminates that characteristic LaScala sound that I appreciate. Apparently, as the LaScala accentuates this range, it becomes more critical. If, due to acoustics, this range is also emphasized a bit too much, it becomes overwhelming for me, and I can hear an annoying thickening in some songs.
For me, the solution will not be to use the room corrector because it eliminates too much for my taste. Instead, I need to find a way to lower that range by a few dB. Just enough to no longer perceive it as bothersome but still preserving enough to let the LaScala be the LaScala. In theory, this can also be done with the DSpeaker, but this device doesn't come across as very audiophile. It pains me to permanently incorporate it into my setup.
Anyway, this weekend I will conduct an A/B test with my girlfriend, and if there is truly no downgrade in the music for me, well... no matter how much trouble I have with this device, it does its job well, so I'll keep it in the setup for now 😉
May I thank everyone who has brainstormed with me and provided input. I am genuinely happy that I now have a clear understanding of what I hear, can articulate it, and know what to do about it. And to avoid giving the wrong impression, I think the AL5 speakers are fantastic. I listen to them every day for several hours and genuinely enjoy them.
Melvin
Id be curious to know what the EQ curves applied by the dspeaker device actually looked like.
Roys recommended PEQ with a Q:8 is very narrow centered on 148hz.
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I would pull the white electrical tape off and check the (hopefully) soldered joints where the capacitors were replaced.
Is the noise happening on both sides?
If you think it’s the midrange you could try swapping the midrange drivers and see if the issue follows the driver to the other speaker.Sometimes if the driver isn’t screwed in snugly, or the gasket is dried up and hard, it can cause some odd buzzing with certain sounds.
Is the distortion sound reproducible every time with a specific recording?
Does the sound happen only when playing at a certain volume?
In some cases the diodes in the tweeter protection circuit can be going bad and cause some irregularities in the response.
If the crossover is wired up correctly, and you aren’t cranking a ton of power through the LS, then it should be safe to temporarily disable the tweeter protection by unbolting one of the diodes from the metal bracket.
you would want to make sure the unbolted part was isolated and not going to short out against anything.
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At work I’ve got two separate 1Gbps fiber connections that each feed into their own switch.
The switches are then cross connected to each other and then into a high availability pair of firewalls for a pretty decent amount of redundancy.
If either of the ISP’s, either of the switches, or either of the firewalls goes down, we might miss a few packets but the folks on campus typically won’t notice a thing.
I’ve started setting up our remote offices with dual VPN tunnels back to campus, one over each ISP.
Routing through the VPN tunnels is managed via an SD-WAN zone.
I have some SLA rules set up to monitor the individual tunnels so if one gets slow it will automatically route through the one with the better connection.
Again, it usually switches fast enough the folks at the remote office barely even notice.
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350Mbps down
12Mbps up
on Spectrum coax.
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I think the last time I sold a painting it was a still life of cardboard boxes and it went for around $320.
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1 hour ago, Stephen Buck said:
Are you typing in disappearing ink? I can read the email but not the post on browser.
He edits his posts all the time.
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Our meeting tomorrow has been changed to a virtual get together on account of the weather.
I may go out for fajitas by myself after the meeting.
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We’ve got a two hour delay for the kid’s school in the morning, possible cancelation if things get bad enough.
I’m supposed to drive down the mountain to Statesville for a dept meeting on Wednesday, I guess I’ll see how things are by then.
For said meeting, my boss messaged us today asking about suggestions for lunch.
The Dominican girl that works for us and I both quickly piped up and suggested the local Mexican place.
We quickly got another couple votes for the Mexican place the dept chat.
At that point the boss dropped the link to order on DoorDash and told us to let him know what we wanted to order.
Why choose Mexican food if you can’t sit around stuffing your face with chips and salsa while you wait for your food to be delivered hot and sizzling fresh to your table?
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I should start painting again.
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I have an AIMS PA head that uses KT88/6550s.
it needs some work.
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9 minutes ago, DirtyErnie said:
The angriest and saddest I ever saw a guitar player was when I told him he couldn't gig with the RCA 12AX7s I'd put in his Deluxe Reverb for recording.
The Amperex Bugle boy 12AX7’s sounded even better but they didn’t last very long in the V1 spot in the MkIII.
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My old Mesa Boogie had whatever the contemporary Mesa branded 6L6 and EL34 were that Mike Bendinelli put in it during its last service.
I never got around to swapping them out for anything else.
the preamp tubes were a different story.
I ended up with a box full of vintage RCA black plate 12AX7 that I pulled out of a bunch of lab equipment they were tossing at work.
The RCA tubes sounded a million times(subjectively) better than the mesa branded (Sovtek?)12ax7.
Cables, Coffee, Cycles, and Cocktails
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I boiled some hamburgers last night and woke up this morning to some more snow coming down as the temp continued to drop all day.
A friend of mine up in VA grows some of those big herb plants.
I told him he must be doing something wrong as I still haven’t seen any tomatoes on the bushes he has staked up out back.