alexberger

Responses from alexberger

Speaker sensitivity vs SQ
Hi @clearthinker ,The low sensitive speakers sound boring because they eat microdynamics that exist at live performance. They are simply much less musical. The audio business (producers, sellers, reviewers) cheat you and sell you cheaper stuff as ... 
Speaker sensitivity vs SQ
Hi @clearthinker ,The problem is because high efficiency speakers today are rare a very few audiophile had opportunity to listen good implemented system with high efficiency speakers.The other factor is the average high efficiency speakers are mor... 
Speaker sensitivity vs SQ
@mijostyn ,How can you cool the driver voice coil if you need 100 watts to listen to it at normal volume?Even if you put a dedicated fan it wouldn't help!In contrast if you need just 5 watt, you don't have this problem even with the most straightf... 
Speaker sensitivity vs SQ
The thermal distortions in speakers and transistors have inertia and therefore are a heavier burden on our brain than conventional non-linear distortions.In addition, changing the impedance of the speakers changes the frequency of the speaker filt... 
Spendor D9.2 vs Proac D48r
The lack of the needed break-in time can be an issue on a show.  I drew attention to an interesting fact on Montreal show. Some dealers have a good sound in their room every year, other dealers have a bad sound in their room every year. They chang... 
Speaker sensitivity vs SQ
@audio2design , Thank you for the link to the article.It is so sad that most audiophiles don't care about this one of the most important characteristics for speakers SQ.High efficient designs sound more alive, with better texture, micro and macro... 
Spendor D9.2 vs Proac D48r
Harbeth HL5 
Spendor D9.2 vs Proac D48r
Why do you consider Spendor D series?Why don't Spendor Classical series or Harbeth?I like Spendor Classical and  Harbeth sound.I heard Spendor D9 and D7 at Montreal audio show and was deeply disappointed by their scratchy, not natural sound.  
V-Cap CuTF .22 on Gain Tubes-- Primaluna Dialogue HP Integrated
Does anybody try these capacitors?Duelund JDM Tinned Copper Foil Capacitorhttps://www.hificollective.co.uk/catalog/1-5uf-duelund-jdm-tinned-copper-600vdc.htmlAre they sound close to Custom series or to RS series? 
V-Cap CuTF .22 on Gain Tubes-- Primaluna Dialogue HP Integrated
I also put V-Cap CuTF between driver tube 6F6 an 300B output tube in my SET amplifier. Thank a lot to @zipost who recommended me to use V-Cap CuTF in this position. Even after just 30 hours they sound very good and sound is continue to improve.I u... 
Spendor D9.2 vs Proac D48r
All Spendor D line with LPZ tweeter is disaster. 
A question for 45 SET experienced listeners
Hi @atmasphere ,Do you know why so many designers use 6sn7 driver for 300B and even 211 and 845 tubes?1. Do they want to achieve a special slow signature of an amplifier sound?2. Do they do it as result of lack of knowledge and experience?Regards,... 
Bigger drivers = bigger soundstage
Multi driver solution share heat between drivers and improves dynamic and decreases distortions. But it works for small derives as well for big drivers.  
Bigger drivers = bigger soundstage
Small drivers and speakers are good for marketing people:1. Better WAF2. Cheaper to built !!!3. Increase sales of expensive super powerful transistor amplifiers.IMHO the fashion and huge popularity of low sensitive speakers with small drivers is t... 
Bigger drivers = bigger soundstage
It is opposite:https://www.youtube.com/watch?v=w8jbJZq-qXc