JPF Youtube Demos, shameless plug

[jpfamps]

For anyone interested (or indeed very bored at work), there are now some Youtube demos (not my playing I should hasten to add) of our latest amp uploaded to the internet (not by me either).

http://www.youtube.com/user/jpfamplification

The amp is a variation on our other two amps, but employs 2 x KT66s in the power stage, to give around 25W of clean power.

The speakers in the combo are 2 x Tayden Great Brits.

[JamesHealey]

Sounding good Frank!

Tayden speakers are pretty damn cool, Only really got to give them some thorough examination working at Wienbrock.
My favourite is by far and away the High Brit!

[dave_mc]

i think i checked these when you first posted, and meant to reply, but i must have forgotten :o They sound really good.

^ that's interesting. been thinking of getting a couple of them, maybe (high brits).

[jpfamps]

Not tried the Hi Brit, which I assume is similar to a True Brit but with a bit less top end, is that correct?

I prefer the Great Brit over the True Brit, especially in closed back cabs.

We've been using the Great Brit and the Ace 25 as our "regular" speakers, however we've also built a couple of amps with Retro 55s, which sounded great, but we had nothing to compare them with directly.

Thus we are hoping to perform a Great Brit and Retro 55 shoot out using the same cab so we can make a better judgement of the respective merits of these speakers.

[dave_mc]

I assume so, never actually tried one. :lol: Just went back to that thread on musicradar from a couple of weeks back- I assumed you'd tried it, but on reading it again it looks like you'd just tried the different voice coil or something like that?

is the retro the one that's more like a fane? or am i just making that up? :lol:

[jpfamps]

No I've not tried the Hi Brit, which is a True Brit with a Kapton voice coil, unless I'm very much mistaken.

The Retro 55 was designed by Paul at Tayden, and is not really the same at all as a Fane. I'm not sure where this info came from.

The Retro 55 has a 2" voice coil cf to 1 3/4" for most British-style speakers, eg G12H, Blue etc, and the larger 50 oz magnet.

The larger VC means their is a greater length of wire in the VC gap, so can generate more force, and also means higher power handling as there is greater thermal mass.

The 55W rating is very conservative for this speaker.

[jpfamps]

No I've not tried the Hi Brit, which is a True Brit with a Kapton voice coil, unless I'm very much mistaken.

The Retro 55 was designed by Paul at Tayden, and is not really the same at all as a Fane. I'm not sure where this info came from.

The Retro 55 has a 2" voice coil cf to 1 3/4" for most British-style speakers, eg G12H, Blue and indeed Fanes etc, and the larger 50 oz magnet.

The larger VC means their is a greater length of wire in the VC gap, so can generate more force, and also means higher power handling as there is greater thermal mass.

The 55W rating is very conservative for this speaker.

[Brow]

On a (kind of) related note I was reading through an old copy of Guitar and Bass magazine and came across a review of a JPF Amps Sir Charles (I think) 6V6 combo.

Sounds like quite an interesting amp and looked really cool  8)

[dave_mc]

No I've not tried the Hi Brit, which is a True Brit with a Kapton voice coil, unless I'm very much mistaken.

The Retro 55 was designed by Paul at Tayden, and is not really the same at all as a Fane. I'm not sure where this info came from.

The Retro 55 has a 2" voice coil cf to 1 3/4" for most British-style speakers, eg G12H, Blue etc, and the larger 50 oz magnet.

The larger VC means their is a greater length of wire in the VC gap, so can generate more force, and also means higher power handling as there is greater thermal mass.

The 55W rating is very conservative for this speaker.

ah ok, thanks

it said on the tayden site (i think) that the retro 55 would be a good replacement for fanes. But as you said, that doesn't necessarily mean it's based on one (again I've probably been assuming too much :lol: ).

[jpfamps]

No I've not tried the Hi Brit, which is a True Brit with a Kapton voice coil, unless I'm very much mistaken.

The Retro 55 was designed by Paul at Tayden, and is not really the same at all as a Fane. I'm not sure where this info came from.

The Retro 55 has a 2" voice coil cf to 1 3/4" for most British-style speakers, eg G12H, Blue etc, and the larger 50 oz magnet.

The larger VC means their is a greater length of wire in the VC gap, so can generate more force, and also means higher power handling as there is greater thermal mass.

The 55W rating is very conservative for this speaker.

ah ok, thanks

it said on the tayden site (i think) that the retro 55 would be a good replacement for fanes. But as you said, that doesn't necessarily mean it's based on one (again I've probably been assuming too much :lol: ).

Possibly someone somewhere said it was a good speaker in Hiwatts and it sort got labelled as a Fane-style speaker.

[dave_mc]

that's definitely possible :lol:

[JamesHealey]

I'd say the High Brit had a touch more high mid content and a fuller spectrum of sound compared to the True Brit, it's a lot like the Great Brit but without the HUGE smack you in the face punch that comes with the Great Brit.

I ran a single 1x12 today with a Great Brit and Wienbrock Gaucho and it was monumental sounding, tried a closed back 2x12 with Great Brits and it wasn't quite as good in closed back format.

I'll stand by the High Brit as my favourite though!

[jpfamps]

That's interesting about the differences between the Hi Brit and True Brit as their construction is almost identical apart from the VC material. I will make enquires, because if it's a "better" speaker and has high power handling we are in a win-win situation.

I really like "smack in the face" of the Great Brit, and indeed the Retro 55.

It's also worth mentioning that I play with a lot less distortion than the average guitarist (indeed I have often been described as an average guitarist........).

We found that the Great Brit works better in a closed-backed cab than the True Brit (which of course isn't the Hi Brit).

Of course this all depends very much on the cabinet construction/ dimensions etc.

[dave_mc]

^ that's very interesting. the "win-win" thing is what interests me too- assuming they're relatively conservatively rated (and from what i've heard they are) two high brits in a 2x12 means i could use them with 100 watt amps, whereas going with true brits i could only use it with 50 watt amps.

though if it sounds completely different, i don't need the 100 watt rating enough to get something which doesn't sound the way i want

also interesting that you're saying they don't sound so good in a closed-back cab. though if i went with roadkill (which is probably what i'd end up doing) i'd have the option of open or closed, so it wouldn't be a problem.

EDIT: sorry if i've completely derailed the thread now :oops:

[sgmypod]

great amp, love the look and the sir charles