Well I nearly have the question in the subject line.
I was looking at their site and it doesn't tell me too much about the differences between these two amps. I would have used their forum, but I'm unable to register.
Actually, I'm not too sure if anyone would hear the difference in volume between a 33 watt amp and a 44 watt amp?
Thank you yet again for your assistance, as they'd say in the old country, "you're a bloody champion!"
It does sound like the sort of thing I'd be looking for.
Just had a thought, at 345vac @ 300mA, that adds up to a pretty high B+, I could be wrong, but wouldn't it be around 470VDC taking some sag into account?
In which case say goodbye to 6V6's?
Strictly 6L6's or EL34/6CA7/6550's
Anyone with any experience on the matter out there?
You can't go too big on the output tranny. I have played all the different variations of all the different amps and the best sounding ones have the biggest iron. This is a written in stone thing for me. I also prefer 6L6 tubes by a huge margin. My advice is build a 100 watter too. There is a dimension and girth to the tone that a single pair of 6L6 tubes doesn't give. The negative feedback is different as is the speaker dampening.
470V is ok for 6L6 but I think 430-440v is more standard. You should adjust the 3K feeding the PI up to as high as 8.2K to bring the voltages down.
The other difference when I bought my D44 kit was that the OT has dual primaries.
4K and 8K so you can run 6V6 or 6L6, EL34, etc.
Some guys wire in a DPST switch to make it more portable.
I did this but later hardwired it for the 4K since I run 6L6.
Then I added dual bias controls to be able to dial in the power tubes better.
Mark wrote:Just had a thought, at 345vac @ 300mA, that adds up to a pretty high B+, I could be wrong, but wouldn't it be around 470VDC taking some sag into account?
"Do you ever think a 100 watt Dumble is too loud though?"
Only if you think a Fender Twin Reverb is too loud; The ODS used Fender Power AND output iron almost exclusively.(A few MusicMan as well)
For most purposes these days, I think 2x6L6 would be more than sufficient (especially with modern P.A. tech.)
Tom
This one of those funny answers. I think if a fifty watt amp (not high gain or anything special) is pushed then it is too loud for most small pubs.
If the fifty watt amp has to produce clean tones then it might be too quiet in a band situation.
Many years ago I played in a band where we did clean stuff and distorted stuff. I used a Fender Concert II and I found the clean channel too quiet when playing single note passages with the band (I used a compressor to lift the volume) and I could not push the amp hard enough to get better distorted tones (it was too loud for the pubs.) I tried pedals to alleviate the problem (a Sans Amp wasn't too bad through it.)
If the clean and distorted tones can be adequately balanced then a 100 watt amp won't be a problem. Also the dynamic range of the 100 watt amp might come into play with the Dumble amp?
That is to say perhaps the compression one normally associates with an overdriven amp doesn't really come into play as much with this amp?
And if you're gigging, a small, powerful combo is a lot easier to pack around (despite its weight) than a 4x12 of efficient speakers to get more from less watts in the amp.
As an aside, have you been following Dana Hall's (UR12) VVR threads here and elsewhere? I'm about to implement one in a 50 watt rig; I wonder if anyone has scaled it up to work with a 100 watt amp? Could be just the ticket for the ODS-100.
Tom
PS> The loudest "CLEAN" I've ever heard in a Fender amp was actually a AB763 Blackface SuperReverb ("50"watt) w/ 4x10 Jensens...Noticeably louder cleans than several similar-vintage TwinReverbs I had access to "in the day".
As discussed here on the AG before, the fourbanger versions always sound nicer and more complex than the twobangers. If you think that 4x 6L6GC will be too loud that I'd try an ODS with 4x 6V6 JJ's in it @ ca 450V. OT with 8k primary is what I used in mine (HRM). The amp will sound great with that and in a 4x10" setup it will kill a lot of Marshall stacks too.
How does the master volume play into the 50w, 100w debate?
IOW, if the 100 watter sounds and feels a lot better can't you still control it with the master volume or do you have to let the leash out to get that type of dimension and dynamic of a four holer?
In more other words, do you have to crank the 100 watter to get that, or does it sound good dialed down with the master, vs a 50 watter that has to be cranked up a bit to get that dynamic?
apples to apples, my 100 watters all sound girthier and deeper than my 50 watters, even at the same levels.
Structo wrote:How does the master volume play into the 50w, 100w debate?
IOW, if the 100 watter sounds and feels a lot better can't you still control it with the master volume or do you have to let the leash out to get that type of dimension and dynamic of a four holer?
In more other words, do you have to crank the 100 watter to get that, or does it sound good dialed down with the master, vs a 50 watter that has to be cranked up a bit to get that dynamic?
Jelle just hit on an answer to the question that I've been longing to ask: Is the "girth" coming from the complexity added by more tubes in the output section vs adding more power?
