vintageHIWATTconvention.com

Hi Jimmy, may I ask where are you, these speakers, located? Cheers.
I'm in Huntington Beach, CA

Good photos will be suitable evidence for us to determine originality.

Best detailed explanation I keep on hand: https://www.audioholics.com/frequent-questions/relationship-between-watts-and-dbs Short answer: Doubling the power output (watts) will result in a 3 dB increase in loudness. A ten times increase to the power output will result in a 10 dB increase, or sound t...

HAPPY NEW YEAR!!!
How's the collections sales going for you Doc?
I've not rec'd any notifications from Reverb that I recognize as yours.

Wow - Doc!!!

Don't remember ever knowing you had that Robin Trower amp.
Would you please post links when they're up?
I have no experience with Reverb myself. Take it you prefer it over eBay?

Without serial # & photos of outside & speakers' tags inside nobody can offer you real assistance.

hiwattguenni wrote:but which is the right one for V5? ECC 81 or ECC 83 ?

You're not listening (reading). Mark & I have both told you & linked to supporting info. ECC81. It is the original choice.

ECC 81 for PI is correct. But after the PI must be additionel tube (V5). it`s a driver or impedance converter. Perhaps I misunderstand your comment, however V5 is the phase inverter (PI) which is last before the power tubes. note: last does not mean last in the row physically/visually, but last in ...

Anything can happen I suppose, however 99.9% sure that from Hylight your amp would have shipped out with an ECC81/12AT7 in the phase inverter position. Perhaps previous owner was a Marshall fan & chose ECC83/12AX7 like a Marshall would have...? Lots of opinions on the subject posted in various f...

FWIW -- Best thing I did for my custom closed back 212 guitar cab was to replace the Celestions with Hi-Tones. So much easier to achieve a nice chunky full range while able to dial in right amount of sparkle. Played with a DR103, Rivera S120 and a Diezel VH4S (mind you at reasonable volume to preven...

mhuss wrote:Note there is no "right answer." Whatever sounds good to your ears is best for you.

Unless of course your audience hates it. No fans is a bummer... LOL

If memory serves me correctly you'll find plenty of discussion on this topic if you search back to the threads
Hiwatt Speaker Shootout 2010 &
Hiwatt Speaker Shootout 2008.

Perhaps someone still has all the sound clips still accessible on the web somewhere.

Very handsome indeed!

It's not the overpowering beast that others have, but this little "stack" is perhaps the ultimate in versatility!!! I can't say enough about the HT30/15 "JP" Combo amp. It's quite the amazing little beast and contains pretty much any tone you want!!! A special thanks to the good...