|
|
| Romy the Cat's
personal site dedicated to advanced audio and evolved music reproduction
techniques
|
|
 |
|
|
|
|
|
I have tried the 307A in triode connection in the "standard" no feedback moron 12Axx (in my case 12 AT7) easy configuration with a coupling capacitor and it was "nice". Critical listening was almost impossible, I kept zapping around to find more "imp...
|
|
One of the things that I picked up in this thread is the fact that if you use 2 PSUs in series, the sound degrades.This is typical of one unit generating common mode noise and this adds to that produced by the second unit.Even if you run them in para...
|
|
Here is a stupid need of DIY audio level. As many of you know am big lover of Nichicon electrolytic capacitors, even their lowers grade sounds right to me and never made to think about anything better. Still the Nichicon never stopped to surprise me....
|
|
Your statement that "If a capacitor can hum, it is faulty and is wound incorrectly" is a legitimate point of view.
More of a truism I'd say.Thanks, PP, for elucidating these parameters.clark...
|
|
A few post above Bill mentioned that he run his PP2000 from AdeptResponse power conditioner. I am not familiar if AdeptResponse helps to separate one PP2000 effect another. I am not also familiar with AdeptResponse itself. Looking it up it appears t...
|
|
The preamp has the classic tube regulated power supply using 5R4, 6AS7, 6SJ7. It is transformer coupled output and has no capacitor in the signal chain, the gain is about 8db, so it is not a buffer. For convenience, it does has a remote control. It i...
|
|
[quote user="decoud"]Romy, I imagine it is irrelevant but have you found a difference between lower and higher voltage versions of the Electocube 950 series in the coupling capacitor position in the full range Melq? I ask because a stock of 1000V has...
|
|
Hello chaps,Firstly, something I forgot before was that the high impedance coil will have more turns... so the DCR etc will be stepped down as seen by the voice coil. My guess is that overall it will still provide slightly less damping, due to imperf...
|
|
[quote user="Romy the Cat"]Herman, I completely do not understand what you ask. The physical aligning of magnets is absolutely irrelevant. The crossover slopes are irrelevant. [/quote]OK.[quote user="Romy the Cat"]Why would you need to do switching b...
|
|
In this exalted company its probably not up to much but I've not heard anything else demo-ed that makes me want to change. :)Front end: Vista laptop with XXHighend software (best sounding bargain in Hi Fi). Fireface 400 external soundcardDAC/Pre amp:...
|
|
[quote user="ArmAlex"] Romy, I plan to build Melquiades. But there are couple of questions:1-One of speaker options is Gryphon Trident, it is an active bass speaker so Mel should drive MF & HF only. In your opinion can Mel drive these speakers? ...
|
|
N-set, actually, I have seen a stacked-L schematic like you posted, with stacked caps layered over and R at earth for the tank, and I am on record as saying it is very elegant. So, sorry to be such a skeptic, but I learned a long time ago that the o...
|
|
"... and I do not know if 3A/167M is better than anything else and I do not see why the metal socket is necessarily better then plastic – the socket is not the part of the tube."As you know, the 437A is like an on-steroids ECC83, ALL glass built, no ...
|
|
Here is where I stay with my enigmatic Remedios project. I build inside of top box at resonator that I tuned 50-60 hertz. So basically it is under two square foot enclosure with a port tune at the bottom of resonance frequency. The port is shooting ...
|
|
[quote user="Romy the Cat"]Kunashirsky, I do not want to “estimate the remastered vinyl obtained by this technology”. Nether I want to “go to Page 8 of your site” or to any other page. It look like you have some kind of strong believes about some kin...
|
|
Hi,[quote user="Romy the Cat"]
So, voicing is a big totally artificial pile of BS and even the conversations and thinking about voicing is BS.
[/quote]Nope, voicing is the final but essential part of getting what you want.For example, my commercial...
|
|
Folks,A maker of Magnetics reading along has taken me privatly a little to task, it seems I was not clear enough with some of my statements, apologies.First, I seemingly stated that Amorphous material was "always iron", that was not my intention, amo...
|
|
I did not know that there are any modern V-FET designs. As I understand, the V-FET transistors were available in 1970-1980 and were not produced since there. From what I heard that the DIY people who try to do V-FET amps buy old Sony and Yamaha machi...
|
|
[quote user="deemon"]Do you mean a battery bias , Brian ? We didn't try it because of 1 V bias voltage - I don't know if the battery with this voltage does exist . I know only 1,5 V and 1,2 V cells ...... maybe using some chemical reactions we can ob...
|
|
PFC is a function of adding Xc using capacitors to bring the current in the circuit downwards.What you have is an inductive load giving a lagging PF eg a simple motor gives a PF of 0.85.Thus the inductive element can be manipulated to bring it from l...
|
|
Roman,Well, what can I say.Different parts sound different, like it or not.I agree the topology needs to be "right" first, but once past that you will be surprised just how much difference parts happen to make.However, cogitating about your current A...
|
|
The transformer in this preamp was given from a friend who want to learn how to wind transformer. If I remember correctly it started out as UBT, they were bought (when UBT was operating in the Silicon Valley) at the company swap meet. They were rejec...
|
|
Romy,The only card that seems serious is the Creative Live Drive series. They have the capability of encoding at HDCD sample rates and also have a front panal input / output fascia with many conntrols and buttons to explore and screw up with. I have ...
|
|
[quote user="deemon"]Hello , Roma ! I think that you can use only a back chamber with decreased size , and a serial capacitor . I think that there are no ways besides ... [/quote] Actually it would be a serial coil, as I need a low pass no...
|
|
[quote user="noviygera"]I have been thinking about how nice it would be to have have a good sounding DSP for crossover and delay functionality. I know this subject was covered here before but what was talked about is this DSP is not that good, and th...
|
|
Here is a good material with Chinese capacitor shootout
http://www.goodsoundclub.com/PDF/capacitorshootout.pdf
It looks like more or less intelligent writing, thought the caps sitting between stage and caps sitting in feedback work differently (con...
|
|
OK, I have conceptualized what I need for the tweeter amp. It will be MilqEZ – the same Milq one with 6C19P at output. I will use the Super Melquiades power supplies but the HF channels will host own last caps of the filters and own bias of the both ...
|
|
Kunashirsky, I do not want to “estimate the remastered vinyl obtained by this technology”. Nether I want to “go to Page 8 of your site” or to any other page. It look like you have some kind of strong believes about some kind of things, so do I. One o...
|
|
Well, they did not meet your specification, that is simple as that and they shall be taking care of all international shipping cost , import tax , VAT. I am a bit surprised as if it is more or less serious company then they shall not be able to miss ...
|
|
The 6sn7 is a fine amplification tube for use in preamps or gain stages, but it has way too high of an output impedance for driving power tubes. This is my personal preference. It also depends greatly on the topology. Maybe George u...
|
|
|
|
|
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: |
2 |
|
 |
|
|
Total human visitors: |
42,949,901 |
|
|
|
|
|
|