|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
I think the key to understanding this case is that it is beginning to look like the tubes that came with the amp all were over the hill, electrically. Since I have no way to test them other than by ear, that is what I have done. So f...
|
|
[quote user="Paul S"]Well, I thought I'd heard some nice hi-fi at times in the past, but this is something else, altogether! As the new 6AK5s burn in the amps have become truly uncanny music makers. The "highs" are now such that it has be...
|
|
After swapping all the tubes between the left and right amps, the cycling bias current issue (mentioned here in a previous post) seems to have settled.I now have another question, which I hope other ML2 users might answer; first the context: These am...
|
|
skushino wrote:"...I was operating my amp around 275mA for the same reason as you, to have a margin before V2 runs off the cliff..."About that cliff... As a result of not fully backing off the plate current trim pots (thinking a few turns would suffi...
|
|
[quote user="Romy the Cat"] If you have a chance to hear Lamm ML2.0 then try them... [/quote]I wanted to do that, but they are so rare and I found nobody to visit. But honestly, I am not so fanatic, I was looking for something which doesn't make me ...
|
|
I'm working on a project that may be of interest to others, and thought posting to this old thread was a better way than beginning a new post.I use speaker level passive crossovers, between multi-amps (not DSET) and drivers. My desire is to move the...
|
|
The problems I've had with small DHTs have had nothing to do with tone, which has been SOTA in some cases, IMO. The cheap-o Wright's 6SN7/2A3 pairing is excellent with respect to tone and even with respect to "authority", within its limits...
|
|
Actually, Romy, I did not think you were kidding, because I get it, just as you gathered. As you know, as I have posted, the ML2 has been the pivot point of my system for over a year now, and this is exactly because of how this facinating&...
|
|
The Lamm ML3 made me to think about this subject. Since my negative expectations about the ML3’s Class A2 operation turned out to be wrong and since we go into expense and efforts (totally unnecessary in my view as DSET make it worthless) and m...
|
|
Thanks for the extra information, Merlin, it tells much. Please re-read the post you took umbrage with and you will see that I said I took a guess about the circuit (once you confirmed the amp's identiy), and I did not say that I guessed t...
|
|
Well, FWIW, my Audax LF units started life at ~100 dB and wound up closer to 96 dB to get ~40 Hz from them via ~ 4.75 cu. ft. BR boxes. Computer tuning was very close, only a strip of rubber weatherstripping in the vent opening between be...
|
|
Yep, you re right, the Yamamoto A-06S is SET, I did not read it carefully and I was under presumption that A-06S is PP monoblock. Good for Yamamoto! The only amps I heard with AD1 were PP. Somewhere in the very end 90s I shortly was exposed to i...
|
|
I like the way Steve Bench writes. His understanding is so clear it almost shines through my ignorance.Obviously I am still a long way from understanding these things in either abstract or amp-specific terms, but one part of the volta...
|
|
Greg, do you have any experience with the Eminence drivers?When the Audax PR380M2 I use (8 Ohm) became unavailable, Dick Osher specified the 15" Eminence driver as a drop-in substitute for the BZ series.I happen to use a single 15 " Au...
|
|
if they don't try something first and report back on occasion?I finally ran out of patience and tried the damn automotive dielectric grease myself on the pins of 4 new tubes I just put in the Lamms. I also for the first time and again...
|
|
Thanks for alternate driver idea, Romy. Sounds interesting.I certainly do not need all the gain from the ML2 along with my AI M3A phono/pre-amp, so I will give the 5687 family a try once I figure out a decent, fool proof pin-out adapt...
|
|
[quote user="HookEm"]OK, would you say the weak link would then be:1) Just the topology of Lamhorn (single driver with back-loaded horn appendix)2) Any single driver back-loaded loudspeaker in general3) Or any single driver loudspeaker in generalOr p...
|
|
[quote user="jessie.dazzle"]Romy, you may be right in suggesting that I am "going a little crazy in there" (I consider this a compliment btw)... so for now I decided to try some locally sourced precision metal film resistors (Vishays are not that eas...
|
|
Romy,Thanks for the info on alternative manufacturers.
The resistors I found locally seem to be working super well (precision metal film... didn't ask who made them...they are all black and cost EUR 2.80 each). I may eventually replace these with RN...
|
|
I am getting a dedicated third amp to drive my upper bass channel and I just figured out that when I go with my midrange channel at the line level passive filter then I would need 0.0000302uF capacitor against the amp's input stage, that means… 30pF…...
|
|
If Lamm had actually used the larger 950s in my unit I would probably be less curious about it, but for mine he used 10uF 935 couplers with small 950s for bypass (... I assume they are bypass caps...). Hard to imagine 10 uF couplers would not have a ...
|
|
Romy wrote :
"...You have too much gain in your playback for 109dB sensitivity... I used ML2 with 109dB sensitively and L2 with 12.5dB voltage divider at ML2 and I had no annoying noise at nearfiled..."
Ok so I made a couple voltage dividers fo...
|
|
Well, I hope that Romy is the only one who still thinks I'm tube rolling, because this post is even farther afield (although it is almost a spin off from the previous posts about AC/grounding).I finally got around to adding not-terrible po...
|
|
The cool thing is how Lamm figured out how to get one's attention off the window, albeit, apparently, through a fairly didactic program of "organizing", "correcting" and/or "mitigating" certain information he realized contributed to that particular d...
|
|
With the electricity being so bad my listening has been limited, and what I've been hearing has shifted my focus somewhat, which is annoying, to be sure, but it is also educational. I have been playing around with plate loading a little and not...
|
|
I have seen some people built 834P with alternative input and output tubes but I never heard them. I personally tried all imaginable 12AX7-type tubes (AZ, AT, AU, 6N2P and many others) in 834P. Some other triodes were king of better “here and there” ...
|
|
[quote user="AlexBerger"]I tried Amperex ECC83 "Bugle Boy". They sounded bad in the EAR RIAA. I like more modern Amperex ECC83, Holland made with orange-red prints.[/quote]Yes, the Amperex "Bugle Boy" are horrible tubes. They have huge publicity amon...
|
|
So what are we to make of a product like the ML2 amps (using them here only as an example, not a topic)? I have to say I more or less took a flyer on these, since I never heard them in a system I could stand before I up and bought the...
|
|
Romy, my experience with the Lundahl amorphous core transformenrs is limited to my new phono stage, and I have have been dealing other issues enough that I am not ready to write much about it yet.Still, there are qualities worth noting...
|
|
Given enough time (and enough distance), most "randomness" adopts (or appears to adopt) some sort of a "pattern" or patterns.This appears at the rote level to be yet another variant of the old "musical versus accurate" conundrum. Yes, the idea ...
|
|
|
|
|
All context of this site except the Forum's posts
Copyright © Roman Bessnow 2004-2024
All messages within the Site’s Forum Copyright © by
authors of the posts
|
|
Last 24-hours posts: |
1 |
|
 |
|
|
Total human visitors: |
43,016,003 |
|
|
|
|
|
|