DIY Audio Projects Forum
 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

DIY Audio Projects Forum

Welcome to the DIY Audio Projects Message Forum. Use these forums to discuss Hi-Fi audio and to share your DIY Audio Projects. Registration is free and required to post messages and view the file attachments. Registration will only take a minute and registered users do not see any advertisements. After you have completed the online registration process, check your email (including spam/junk folder) for the verification email to activate your account. New members are under moderation - so your posts will not be visible until approved by a moderator. See the Read Me 1st, Forum RULES and Forum FAQ to get started on the forum.

It is currently 22 Apr 2019, 20:27

All times are UTC - 6 hours [ DST ]

Post new topic Reply to topic  [ 92 posts ]  Go to page Previous  1 ... 6, 7, 8, 9, 10
Author Message
 Post subject: Re: 6CY7 Stereo Amp
PostPosted: 25 Jun 2018, 04:42 

Joined: 28 Dec 2017, 05:13
Posts: 7
Location: Maryland, USA
Suncalc wrote:

I hope this helps.

Very much so. Thanks for taking the time to explain all that.

Suncalc wrote:

It was only after thinking about it for a while that I realized that a simple 3dB difference in speaker sensitivity meant the spearers only sound half as loud. By the time you get to a 6dB difference it's really shocking how little sound comes out of an insensitive speaker. This is one of the reasons that today, most people recommend simple high sensitivity drivers (mid 90dB range) for these small SETs. I routinely use small 2-way bookshelf speakers with sensitivity of about 90dB with this amp for casual listening.

Until I built the 4S and the Lacewood, my tube "experience" (or lack thereof) was mainly cobbling together low-wattage guitar amps. Some years back I had built a Fender Princeton style circuit in a head for a friend to use in his studio. I think it ended up in the 4 to 7 watt range. I remember how shocked we were at how loud it was hooked up to a 4x12 Marshall cabinet loaded with Celestion Vintage 30's. I just looked up the specs on the Celestions, and they are advertised at 100db sensitivity. This explains a lot.

Anyhow, now I have a great excuse to build another set of speakers. :up:

Thanks again Matt

 Post subject: Re: 6CY7 Stereo Amp
PostPosted: 17 Mar 2019, 18:08 
Project Author
User avatar

Joined: 06 Apr 2009, 10:08
Posts: 1571
Location: US Pacific Northwest
Bass Response!

I am sitting in my office and working on my 6L6 SE-UL analysis write up and listening to this fine little amplifier.

Well, on the play list comes up Stevie Ray Vaughan and Albert King collaborating on a great rendition of "Pride and Joy" off of the album "In Session". I defy anyone to listen to this track, through this amp with some well match speakers and then claim that there is insufficient bass.

I've got both well controlled thumping bass and super clean blues guitar riffs. This album should put a smile on your face!

It's all about the Glass!
Cascade Tubes Blog

Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 92 posts ]  Go to page Previous  1 ... 6, 7, 8, 9, 10

All times are UTC - 6 hours [ DST ]

Who is online

Users browsing this forum: Exabot [Bot] and 12 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Op-amp Projects :: DIY Phono Projects :: DIY Cable Projects :: Hi-Fi Audio Schematics
© - Terms of Service - Privacy Policy