alexberger

Responses from alexberger

When were the best tube amps made?
When I had Spendor 2/3 speakers I liked these speakers in combination with McIntosh MC30 monoblocks from 1950x. Than I moved on to high sensitive speakers Altec 604E I recognised that 30 Watt push-pull is too rough for such speakers. I decided to... 
When were the best tube amps made?
I think it depends what kind of tube amplifiers. The are number of types: 1. Low power SET under 10 watt - 45, 2A3, 300B, PX25, AD1,... 2. High power SET over 10 watt - 211, 845,... 3. Small push-pull up to 20 watt - EL84, 6V6,... 4. Mid powe... 
Warbling on horns, piano and vocals
It can be turntable mechanics conditions issue - motor, idler or springs.  
Outlet - Shunyata vs Hubble 20 amp
I like Furutech AC FPX-Cu. Great value for money!    
SUT - electrical theory and practical experience
Hi @atmasphere , I have a question for you regarding the use of feedback in tube phonostage. Unlike a power amplifier, the frequency response of the RIAA implies a deeper feedback at high frequencies. Is this kind of feedback deep enough to work ... 
SUT - electrical theory and practical experience
Hi @pindac , I’m agree that EAR834p has rich and bloat the lowest frequencies character. This character of the schematic remained despite improving bass resolution and dynamics, and more clean and open height frequencies in the better implemented... 
SUT - electrical theory and practical experience
Hi @rauliruegas , Yes I use these Tamura SUT with box build by myself without switches. All wires are directly soldered to RCA.  But I thinking to built a new box for my DIY phonostage where I want to place SUTs near input tubes. So I can rid of... 
SUT - electrical theory and practical experience
Hi @pindac , I had the original EAR 834. I like it but I saw it was built with very cheap components and power supply. Romy The Cat article "End Of Live Phonostage" inspired me to build my DIY EAR 834 with better parts (including air capacitors, ... 
SUT - electrical theory and practical experience
Hi @intactaudio , Finally, the overload points (1% THD+N) for the 834P were 69.2mV at 1kHz, 260mV at 20kHz, and 7.85mV at 20Hz.  
SUT - electrical theory and practical experience
Hi @intactaudio , I have a DIY phonostage based on EAR 834p schematic + EMT TSD 15 + SUT Sun Audio SAT1000 Tamura. https://www2.big.or.jp/~sunaudio/assem/sat1000_e.html I use 20 Ohm input (26dB, 1:20). The phonostage has overload points - (1% T... 
COINCIDENT FRANKENSTEIN 300B STEREO
I think you can’t compare stereo and mono Frankensteins. The maximal power is not the only important thing. Is even much more important that stereo and mono have different driver tubes and power supplies. I don’t have Frankenstein amplifier but I... 
Whats on your turntable tonight?
   
Question About Capacitor Upgrade in Tube Amp
Hi @calieng , You did right thing to chose relatively affordable Mundorf capacitors for your Willsenton R300 amplifier. Duelunds and V-Cap CuTf are very good but they are overkill for such not expansive amplifier. With all respect coupling and p... 
Blue Note Tone Poet Series
Yes you are right. A big percentage of Tone Poet and Blue Note Classic series LP are curved.  The quality control should be better.  
Blue Note Tone Poet Series