Recent Posts

11

BeePre / Re: Need Help - High DC Voltage at Terminal 25 & 6

« Last post by bladerunner80 on Yesterday at 11:02:04 AM »

Oh no, what a nightmare!  Well, you all at Bottlehead are awesome, mistakes happen.  This is my third kit, first being the Crack/Speedball and then an Eros 2 - all have been a lot of fun to build and my the manuals are great, I love of all my Bottlehead components! 

Everything is working great now on the BeePre - finished it last night.  Testing now then I will move on to the first upgrade kit! 

12

Music / Re: Classical Music Recommendation, Testing for Lower Bass?

« Last post by Paul Joppa on Yesterday at 10:27:00 AM »

The Camille Saint-Saëns Organ Symphony (#3) comes to mind - or Richard Strauss's tone poem "Also Sprach Zarathustra."

13

Moreplay Upgrade / Re: Slight channel imbalance after installing the upgrade

« Last post by Paul Joppa on Yesterday at 10:15:42 AM »

... and I did find some variance (1.102 vs 1.070). Could this difference in voltage be causing the imbalance I'm hearing? ...

That's only a quarter of a decibel - barely audible.

14

Music / Classical Music Recommendation, Testing for Lower Bass?

« Last post by rsmiii on Yesterday at 09:34:53 AM »

What "classical" music do you recommend, if you want to test speakers for lower bass performance?

Right now I look to Sergei Rachmaninoff, All-Night Vigil (1915) [aka Vespers], particularly movement 5, "Now Lettest Thou."
The final measures has the lower bass vocalists descending to a low B-Flat.
It's fun to imagine where your ears start to lose it and your imagination substitutes in.

But other choices, if you want to show off your speakers and subwoofers?
All suggestions appreciated.

15

Moreplay Upgrade / Re: Slight channel imbalance after installing the upgrade

« Last post by heavycowboy on Yesterday at 08:26:51 AM »

Hi Paul,

I had a chance to take the measurements you recommended and found no significant difference in voltage between the input selector lugs going to L-IN and R-IN on the balance pot.

I went ahead and turned the amp on and measured the voltage between L-IN and R-IN on the volume pot, and I did find some variance (1.102 vs 1.070). Could this difference in voltage be causing the imbalance I'm hearing?

Thanks again for your help.

16

Neothoriator Headphone Amplifier / Re: is this amp still able to be ordered or?

« Last post by Jameson on Yesterday at 08:14:22 AM »

It's not able to be ordered through Bottlehead. PB may be interested in custom building you something, but you'd need to work out the specifics with him.

17

Neothoriator Headphone Amplifier / is this amp still able to be ordered or?

« Last post by Tonkers on Yesterday at 07:10:16 AM »

Like the title says.

Cesar "TONKERS" de Wit

18

Stereomour II / Re: Stereomour complete - Where's the bass?

« Last post by blue360cuda on June 28, 2025, 05:22:56 PM »

Great job on finishing your Stereomour II build! For the thin bass, try switching to the 4-ohm taps instead of the 8-ohm ones, as it could help with bass extension. The Mundorf cap you swapped might also be affecting the low end, so testing the stock cap could be worth it. Additionally, give everything some time to break in, and maybe try different sources. Keep tweaking, and it should improve!

Thanks for the idea!   Since I got all the factory upgrades installed my plan was to remove the trim pots behind each 2A3 and install a pair of DPDT switches to be able to switch between impedances. Originally was planning to do just 8 and 16ohm as I have 8 and 16Ohm loudspeakers but might go all out and do the 2-4-8-16 switch option just out of curiosity if anything.

Circling back around about the bass - wow , I totally eat crow on that one!  The Stereomour II is seriously my favorite amp!  I did settle on the Mdorf silver/oil for the 4.7uf and 0.1uf caps and honestly they do sound great. Now that everything has a broken in a bit it's lovely.  The only other "upgrades" were some NOS military grey plate RCA input tubes and NOS Guiguang 2A3s I found on AliExpress, which surprised me how great they sounded. The bass isn't that kick you in the chest boom boom solid state stuff - but its very solid , tight and musical. I'm loving it!

19

Moreplay / Re: Slightly High Raw B+

« Last post by ambd1 on June 28, 2025, 02:56:13 PM »

Thanks, Paul.

I will move on then with next steps.

Alan

20

General Discussion / Re: Need head phone help

« Last post by Paul Birkeland on June 28, 2025, 02:26:46 PM »

If you don't really have access to a place to try things, then your best bet is going to be to buy used pairs on eBay to try out, then just resell them if you don't like them.  You'll lose a few bucks here and there on shipping and auction fees, but that's going to provide you with the most opportunities to try stuff out.