Hey all, I have a tube amp and I'm trying to figure out what is causing the sound to crackle when I touch/turn the volume knob. Would this be a grounding issue? Any help would be appreciated!

Most of the AMB M^3 amps with bass boost that I tried had a small improvement in bass.    I am thinking about building an M^3 with bass boost, and was wondering how low the bass can theoretically go using the bass boost calculator.    Is it possible to build an M^3 that is a bass monster??

Hey everybody,   Does anyone know how to increase the bass from the bass boost of a finished M^3?    I'm looking to max out the bass on the amp as much as possible.    Thanks! 

SOLD

Hi all I recently bought a pair of PS-1s , and when looking straight on, the aluminum cups seem a bit darkened. Is there a way to carefully clean/shine them to make them look newer? Should I worry about scratching the aluminum? Thanks!!

Can someone shed some light on possible issues that could happen if someone used an amp (Corda Headfive) that was set at 240V in a country that uses 110V (Japan) Wouldn't it potentially be worse to use an amp set at 120V in a country that uses 240V (overvoltage)? Cheers!

Recently, I've heard some people say that, for the most part, mid-range home/desktop amps offer superior SQ over high-end portable amps. Obviously, it's not fair to compare a $1000 amp (ex. B22) to an iBasso D3, but comparing the Meier Corda Headfive (~$200), for example, to portable amps in the...

I recently bought a 3-channel B22, which I've been using with my Denon D2000 (25 ohm) and Audio Technica AD2000 (60 ohm) headphones The problem is, when I plug my headphones in, there is a faint humming in the background. Unplugging the DAC makes no difference, and it can be heard at any volume...

What does everyone think about using a DAC w/ tube stage and an amp w/ tube stage together? In particular, an MHDT DAC (Havana w/ Bendix 6385) and Woo Audio (WA6 w/ Sophia Princess) amp. Anybody tried this before?

At the moment, I am using a USB converter (Trends UD-10.1) to convert from USB to Optical, which in turn feeds my DAC. I am using Foobar w/ the ASIO USB Driver (not ASIO4all), which is supposedly bit-perfect. If I decide to purchase a high-end DAC which supports up to 24bit/192kHz Upsampling...

There is a new tube buffer DAC from Japan called the Sun Valley SV-192S SV-192S SUNVALLEY Ãæ¸Å¥ª¡¼¥Ç¥£¥ªÇã¼è¡¦ÈÎÇ䡦ÄÌÈΡ¦°ÑÂ÷ÈÎÇä¤Î¥Ï¥¤¥Õ¥¡ ¥¤Æ² McIntosh/JBL/audio-technica/Jeff Rowland/Accuphase/¿¿¶õ´É¥¢¥ó¥×/¥È¥é¥ó¥¹Â¾¥ª¡¼¥Ç¥£¥ª¤Ê¤ó¤Ç¤âÇ㤤¤Þ¤¹ ²¼¼è¡¦ÄÌÈΤâ¤ä¤ê¤Þ¤¹ This is one of the most...

I'm contemplating buying a non-portable amp (Stello HP100), and using it in addition to my Pico which would function as the DAC and pre-amp, for my ATH-AD2000 (low impedence) cans. Can anyone share their opinions/experiences on whether its worth it? Will there be a significant difference...

So here I am in Japan, in the local book store, and I notice that they have a huge music section where you can rent CDs for days at a time for only roughly $2-$3. But the real kicker is that they have CD burners and blank CDs right next to the CD collection, and its pretty obvious that they are...

I was just wondering, is it normal to hear a crackling sound when adjusting the volume of my Pico? It only makes that sound while adjusting the volume, in particular around the 10 o'clock to 12 o'clock range. Has anyone else had that experience? I have it connected from my computer via USB...

Just checkin to see if anyone on head-fi will be there, as I most definitely will

Kind of a specific question, but does anyone have any experience with the Audio Technica ATH-AD2000 and Headamp Pico DAC/Amp? I read a review of the Headamp Pico by Asr that basically said that the ATH-AD2000s did not pair well with the Pico, but I was wondering if other people have had...

I found the highs on my pair Denon D2000s to be a bit much for heavy metal. Any recommendations for solely metal?

What does everyone think about wireless headphones? I remember seeing a few high end 2.4 ghz wireless headphones when I was in Japan last year. Plus, the new lossless bluetooth is supposed to be out soon. Any opinions?