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Treble-Taming Speaker Choice for Cornell Romany Plus? - Help Please

yeltneb

Member
Joined
Jun 24, 2016
Messages
40
Hey Guys!

I was just lucky enough to pick up a Cornell Romany Plus at a great price. If you aren't familiar with them, they are a 10w Class A tweed amp with a circuit that is apparently based on a champ but I've also heard people compare them to tweed princetons (I have no idea to be honest, not knowing much about amp design). Tubes are 2xECC83 1xECC81 & 6L6GT in the power amp.

I absolutely love it but find that the top-end frequencies can be a bit piercing for my tastes, especially when the amp is overdriving hard.

It is currently fitted with a Jensen JCH 12/70 and I was considering a speaker change to calm the treble down a bit, emphasize / warm up the mid range and maybe make it slightly more 'British' sounding (without trying to completely change the character etc).

I've been looking at Celestions and lots of people seem to put Alnico Blue's in Romany's. Might that achieve some of the characteristics I've mentioned? I know that Alnico magnets are of the correct era for the design of the amp but I believe they are also known for being bright?

Any advice appreciated. As you can probably tell, i'm a bit of a noob with this stuff and find speaker spec sheets a tad confusing. Cheers!
 

PaulD

Active member
Joined
Jun 25, 2007
Messages
613
I doubt that a Celestion Blue would do much to tame the treble, it is generally considered to be a bright sounding speaker (think chimey Vox type sound). Not to say that it wouldn't sound good, the Celestion Blue sounds great in most amps, but it might not be what you are looking for. A Celestion G12H might be a better choice if you are looking for less treble.

Also worth noting that either of the Celestions are more efficient speakers than the Jensen so the amp would be a fair bit louder which may or may not be what you want.
 

yeltneb

Member
Joined
Jun 24, 2016
Messages
40
I doubt that a Celestion Blue would do much to tame the treble, it is generally considered to be a bright sounding speaker (think chimey Vox type sound). Not to say that it wouldn't sound good, the Celestion Blue sounds great in most amps, but it might not be what you are looking for. A Celestion G12H might be a better choice if you are looking for less treble.

Also worth noting that either of the Celestions are more efficient speakers than the Jensen so the amp would be a fair bit louder which may or may not be what you want.

Thanks Paul, is it a Heritage Greenback you are referring to?
 

PaulD

Active member
Joined
Jun 25, 2007
Messages
613
Thanks Paul, is it a Heritage Greenback you are referring to?

Yes, that's what I had in mind. The G12H has a heavier magnet than the G12M greenback and is notable for having more bass response. If I recall correctly there are 2 versions, G12H(55) and G12H(75) with the 55 being the bassier of the 2. I'm sure there are other options as well and I'm sure others will chime in :)
 

goldtop0

Well-known member
Joined
Aug 19, 2003
Messages
8,637
I've used Celestion Blues over the years and Heritage G12H(55hz) and prefer the blue in smaller amps.
It's got a smoother richer response compared to the G12H and I don't think it's necessarily an overly bright speaker, play around with the Treble, Middle, Bass to find your desired tone.
 

TM1

Well-known member
Joined
Jun 27, 2003
Messages
8,244
In a tweed Champ vs. a tweed Princeton there's only the speaker size and one cap difference between the two amps. Champ has an 8", Princeton a 10" and the Princeton has an added cathode bypass cap, a 25uf@25v.
 

PaulD

Active member
Joined
Jun 25, 2007
Messages
613
In a tweed Champ vs. a tweed Princeton there's only the speaker size and one cap difference between the two amps. Champ has an 8", Princeton a 10" and the Princeton has an added cathode bypass cap, a 25uf@25v.

Not sure which versions of the Champ and Princeton you are comparing here but this is incorrect. Assuming we are talking about narrow panel tweed versions, the Champ could be either the 5E1 or 5F1 circuit and the Princeton could be either the 5E2, 5F2 or 5F2-A. The main difference between the Champ and the Princeton circuits is that the Princeton has a tone control whereas the Champ does not.
 
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