Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Speakers for tube amps...
Speakers for tube amps...
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 18th April 2006, 03:24 PM   #1
nickds1 is offline nickds1  England
diyAudio Member
nickds1's Avatar
Join Date: Aug 2005
Default Speakers for tube amps...

I'm just getting to the stage where my Bevois Valley amp wil be used... (now looking at doing a Baby Huey)

I happen to have two pairs of older speakers - some Celestion SL6s & a pair of Audiomaster MLS1s (Seem to be LS3/5As by any other name).

Are these suitable? I've no details on the Audiomasters, but here's a bit about the SL6s...

The SL6S are two-way speaker systems with a 1.25 inch dome tweeter and 6-inch plastic woofer. Each unit measures 14.8" H x 7.9" W x 10.5" D or 10" D without grille. The particular pair for review came in walnut though I have seen them in black as well. The speakers have a sensitivity of 84 dB SPL (1 watt at 1 meter). Impedance is 8 ohms. Each speaker weighs 18.5 lb. Packed per pair for shipping, the package weighs 41.4 lb. The recommended amplifier power requirement is between 25-120 watts. The speakers are said to go -3 dB at 60 Hz.

"The whole plan hinged upon the natural curiosity of potatoes" - S. Lem
  Reply With Quote
Old 18th April 2006, 04:06 PM   #2
BHD is offline BHD  United States
diyAudio Member
BHD's Avatar
Join Date: Jun 2004
Location: Brooklyn Park, MN
Send a message via Yahoo to BHD
Well, those speakers are really inefficient, so they'd only be good for low power tubes if you listen to music at very low levels.

I'd suggest either different speakers or a more powerful tube amp.
My religion is the golden rule. The only time it's forsaken me is when I've forsaken it first.
  Reply With Quote
Old 18th April 2006, 10:30 PM   #3
phn is offline phn  Sweden
diyAudio Member
phn's Avatar
Join Date: Oct 2004
I don't know anything about the Baby Huey.

MY rule of thumb (people will disagree) is at least 40 wpc for 84 db in a standard size room, whatever that is. That means 20 wpc for 87 db, 10 for 90 and so on. Actually, I would like more power than that. I don't like to push the amp. (Maybe that's the reason I don't know clipping.) But with those figures you should end up on the right side.
  Reply With Quote
Old 18th April 2006, 10:46 PM   #4
arnoldc is offline arnoldc  Philippines
diyAudio Member
Join Date: Apr 2003
Location: Makati
Send a message via Yahoo to arnoldc
You'll need at least 40W/ch for that LS3/5 variant.

I used to have an Anthem Amp 1 (w/ Pre 1L) to drive a similar speaker (Spendor S3/5 which is a bit more efficient).

My friend owns a Celestion SL6 and uses a Dynaco ST70 to drive those.
  Reply With Quote
Old 19th April 2006, 01:15 AM   #5
martinab2 is offline martinab2  United Kingdom
diyAudio Member
Join Date: Mar 2004
Location: aberdeen, uk
Send a message via AIM to martinab2 Send a message via MSN to martinab2 Send a message via Yahoo to martinab2
The SL6 and SL6S are rather difficult speakers to get the best out of. I used to sell lots of these in my hifi retailing days largely on the back of the very favourable reviews from the magazines. With a top quality transistor amp (Naim 250 etc), they do indeed sound excellent - neutral, fast and sound much bigger than they are. With anything else the results are pretty disappointing. Although they will work and even go reasonably loud with lower powered amplification, they tend to sound flat and boring. I have tried these on medium powered valve amps without much success.
A good pair of SL6 should still be saleable. Might be worth putting them on the market or trying to swap for something more suitable.
  Reply With Quote


Speakers for tube amps...Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Speakers for tube amps Hylle Tubes / Valves 33 1st May 2009 10:48 AM
FS: Speakers (Scan Speak, Seas Excel), Electronics (Tube Amps, Preamps) etc. PHilgeman Swap Meet 8 28th October 2008 02:22 AM
Big sale thread: PHL, Raven, Amps, In-wall/ceiling speakers, Amps, VideoRequest mbcouple Swap Meet 2 27th October 2008 10:27 PM
What speakers are good for tube amps?? Rob.capone Multi-Way 19 31st August 2007 12:32 AM
Tube amps and electrostatic speakers Volenti Planars & Exotics 13 1st November 2004 10:10 AM

New To Site? Need Help?

All times are GMT. The time now is 03:22 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio