Bottlehead Forum

Bottlehead Kits => S.E.X. Kit => Topic started by: willspeed on November 22, 2010, 10:27:01 AM

Title: whoa!
Post by: willspeed on November 22, 2010, 10:27:01 AM
I finished putting together my amp last Friday, and found I had no sound in the left channel - ended up being one of the RCA jacks - small short between the center post and the outside.

I have to say, the sound is amazing. I have a pair of the SEXy speakers (8" front firing subs instead of the 10") which I had tested with another amp (Technics integrated amp) and I thought the speakers sounded good. I was not prepared for the sound that this amp puts out. This is one helluva product!

Now, to install the C4S boards. ;)
Title: Re: whoa!
Post by: JC on November 22, 2010, 11:27:26 AM
The SEX amp is quite the little over-achiever, isn't it?
Title: Re: whoa!
Post by: willspeed on November 22, 2010, 01:06:50 PM
No kidding! My girlfriend walked in from work and sat down to listen with me. Her first comment was "wow, that sounds amazing". Looks like we're heading in the right direction.
Title: Re: whoa!
Post by: Grainger49 on November 22, 2010, 01:12:42 PM
No kidding! My girlfriend walked in from work and sat down to listen with me. Her first comment was "wow, that sounds amazing". Looks like we're heading in the right direction.

That is a keeper!
Title: Re: whoa!
Post by: Maxwell_E on November 22, 2010, 04:06:30 PM
Which one, the amp or the girlfriend, Grainger? Or both? :D
Title: Re: whoa!
Post by: Paul Joppa on November 22, 2010, 04:30:18 PM
Thanks for the positive words! And, just wait until the parts are broken in!!

Seriously, many people find that caps and transformers actually get a little worse over the first 10 hours or so, sounding thin and weak - kind of constricted, if that means anything. Then it opens up, often seemingly in steps, until 50 hours of music have passed. It will open a bit more after than, and exotic caps can take longer, but that's been my most common experience.

It was some 16 years ago that Dave D. first made a 6DN7 amp, slapping it together at a VALVE club meeting, and it blew us all away. It morphed into the first Bottlehead product, and we've always had a great fondness for this tube. I call it the "poor man's 45". There was actually a run on the tube, and prices got pretty high, after the first SEX amp became popular; fortunately the tides of fashion have drifted in other directions since and there's a pretty reliable supply of them out there these days.
Title: Re: whoa!
Post by: Grainger49 on November 23, 2010, 12:32:07 AM
Which one, the amp or the girlfriend, Grainger? Or both? :D

I meant the girlfriend but the amp too.
Title: Re: whoa!
Post by: willspeed on November 23, 2010, 04:12:17 AM
Thankfully they're BOTH keepers! :D
Title: Re: whoa!
Post by: willspeed on November 30, 2010, 02:05:15 PM
Ok, my dumb @$$ fried a tube. Connected the C4S upgrade to A6 instead of A5 (d'oh!) and severely crippled a tube. I just got a matched pair to replace, and I'm enjoying the glorious sound. :)

Lesson for me: TEST THRICE! Plug in once.

Current source: 160GB Classic iPod, playing Seasick Steve, "Doghouse Music".
Title: Re: Ha!
Post by: JC on November 30, 2010, 04:01:32 PM
I don't think your dumb @$$ is the first to do this!

With the understanding that it is relatively new, how are you liking the C4S in the SEX so far?
Title: Re: whoa!
Post by: willspeed on December 01, 2010, 01:38:21 AM
I really like the upgrade. I had an almost imperceptible amount of noise in the background without (not saying that it wasn't awesome), but with it I hear (or don't?) the improvement. With a source plugged in an in pause, I was turning the amp from 0-Full Blast and I could hear *nothing* from the speakers. The bass response is a bit crisper - the sound is more balanced.

I'm still at a stage of burning in the components - especially since I just installed the new tubes. Another good listen after 8 hours or so will let me get another feel for the sound.

However, I had a buddy over tonight and he was floored. I know I still am. :D
Title: Re: whoa!
Post by: willspeed on December 01, 2010, 01:52:25 AM
Oh, and the amp showed me how crappy this USB powered phono preamp is! I hope the Seduction is here today :)