Henriksen Jazzamp 312

**barrymclark** · 07-01-2015, 07:22 PM

Just announced.

A little more power. Updated reverb. Hi freq lowered from 10k to 7.2k.

**phazyme** · 07-01-2015, 07:49 PM

I am new to this forum. I had two excellent teachers Jimmy Bruno and very briefly Jack Wilkins. Bruno's lesson (in his house not on line) was done unplugged Jimmy on his Roger I on whatever. He had this funny looking amp on the floor that looked like ( boy he's got an old piece of shit there). When I started going to his performances lo and behold there was that amp. And then I realized that this was no ordinary amp that could easily fill a hall. That was the Hendrickson first model sans reverb. I still have it having bought one. Great little amp. Jack Wilkins teaches plugged in in his apartment in NYC. I don't think he takes private students but after he heard what Jimmy charged for a lesson I was in. He teaches plugged in and is extremely cool. He just loves to play including classical. He uses a AER Acoustic amp to teach. His student guitar which he lets you play is a 90s Tal Farlow. Well holy shite. What a sound. It was the little one of the AER line and wow. So of course I had to have that. Later on I bought a high end effects AER used! For 2300. The AER amps are tiny with a big sound. And a big price. Both of these amps are just dynamite. So now after this announcement I have to get a newer Hendricksen. Hope this is of interest.

**drbhrb** · 07-01-2015, 10:32 PM

Wow, sounds like they heard the criticisms and responded

**Jazz_175** · 07-02-2015, 12:09 AM

Originally Posted by barrymclark

Just announced.

A little more power. Updated reverb. Hi freq lowered from 10k to 7.2k.

NEW! JazzAmp 312 | Henriksen Amps

...and some extra features as well...
Excellent!

**jorgemg1984** · 07-02-2015, 07:25 AM

https://www.jazzguitar.be/forum/guita...tml#post393752

I did all those mods (except new power amp and 7.2k treble) to my Henriksen head. Glad they improved the amp!

**medblues** · 07-02-2015, 08:47 AM

What's the new power ? It was not clear on the website.

**jorgemg1984** · 07-02-2015, 08:51 AM

135w

**jzucker** · 07-02-2015, 09:05 AM

i think 7.2k is still too high for a treble control. I had my AI Corus amp modified to have it's treble control lowered to 7.2k. I did an experiment recently where I played notes on the high E string on my Guild X-500 and had a friend of mine rotated the treble control all the way up and all the way down and neither of us could hear any difference. Note: That amp has a full frequency range all the way up to 20k so if the frequencies are there, the amp's going to reproduce it. (IOW, it's not a speaker issue)

OTOH, I have not tried this henriksen so perhaps it works better in person than on paper.

From my experience, none of the jazz guitar amps have a proper treble control. Of course, it's easy enough to use a fender style preamp or barber barb EQ in front of the amp but IMO, you shouldn't have to.

**medblues** · 07-02-2015, 09:18 AM

Originally Posted by jorgemg1984

135w

Were they 100 W before ? 35 W addition is very insignificant in my opinion.

**jzucker** · 07-02-2015, 09:22 AM

Originally Posted by medblues

Were they 100 W before ? 35 W addition is very insignificant in my opinion.

Gets you a bit more headroom though.

**jorgemg1984** · 07-02-2015, 09:26 AM

120w. I agree, no big difference.

**Jazz_175** · 07-02-2015, 09:45 AM

Yes, it was 120W, which was already a lot in my opinion.
They added about 12%, which amounts to adding 14,4 W to 120 W ---> about 135 W.

**Jazz_175** · 07-02-2015, 09:47 AM

So, is this Accutronics BTDR-2-S reverb supposed to be much better than the one they put so far?

**jzucker** · 07-02-2015, 10:07 AM

that is the reverb module that was developed by neunaber which is VERY GOOD.

**medblues** · 07-02-2015, 10:17 AM

Originally Posted by jzucker

Gets you a bit more headroom though.

Evans has 500 W on tap for about the same weight but a little more expensive. The reverb of the new Henriksen may be a bit better though. Hmmmm.

**jzucker** · 07-02-2015, 10:35 AM

Originally Posted by medblues

Evans has 500 W on tap for about the same weight but a little more expensive. The reverb of the new Henriksen may be a bit better though. Hmmmm.

the evans is not transparent though. Evans' preamp imparts a middy/nasally character to the sound that cannot be dialed out. In addition, the body, expand, buff and depth are non-intuitive and IMO, belong as internal trimmers .

Frankly, i'm just fine with gain, master, treble, mid, bass and reverb for front panel controls. I don't see the need to add a bunch of extra preamp tweaking controls.

IMO, a good user interface for an amp should be, set all the controls at 12 O'Clock. It should sound good that way. Then you tweak the individual treble, mid , bass, gain to suit your needs.

**skykomishone** · 07-02-2015, 10:45 AM

Curious what folks think of 'The Bud'?

**medblues** · 07-02-2015, 11:07 AM

Originally Posted by jzucker

the evans is not transparent though. Evans' preamp imparts a middy/nasally character to the sound that cannot be dialed out. In addition, the body, expand, buff and depth are non-intuitive and IMO, belong as internal trimmers .

Frankly, i'm just fine with gain, master, treble, mid, bass and reverb for front panel controls. I don't see the need to add a bunch of extra preamp tweaking controls.

IMO, a good user interface for an amp should be, set all the controls at 12 O'Clock. It should sound good that way. Then you tweak the individual treble, mid , bass, gain to suit your needs.

Good to know, I like the middy tone of my Polytone but I don't find it nasal. When I tried the RE300 traveling amp, I did not hear the nasally tone. Also, it has an effect loop which can be used to bypass the preamp (which kind of defeats the purpose).

I wish I could A/B the Henriksen 3 or the Little Bud with my Lunchbox Acoustic (also 135 W).

**Woody Sound** · 07-02-2015, 01:03 PM

Originally Posted by jzucker

i think 7.2k is still too high for a treble control. I had my AI Corus amp modified to have it's treble control lowered to 7.2k. I did an experiment recently where I played notes on the high E string on my Guild X-500 and had a friend of mine rotated the treble control all the way up and all the way down and neither of us could hear any difference. Note: That amp has a full frequency range all the way up to 20k so if the frequencies are there, the amp's going to reproduce it. (IOW, it's not a speaker issue)

7.2k is the "presence" control. 3k is the "treble." I think the idea is to use the 7.2k knob as a tweeter vol. Sorta. The Raezer ER cabs have a vol control for the tweeter. I think it works well. with magnetic pickups you barely hear any difference. Just a touch of crystal clarity. But with piezo, mics, etc, it makes a noticeable difference.

**Woody Sound** · 07-02-2015, 01:07 PM

Originally Posted by Woody Sound

7.2k is the "presence" control. 3k is the "treble." I think the idea is to use the 7.2k knob as a tweeter vol. Sorta. The Raezer ER cabs have a vol control for the tweeter. I think it works well. with magnetic pickups you barely hear any difference. Just a touch of crystal clarity. But with piezo, mics, etc, it makes a noticeable difference.

ps - On my Quilter MP I've been turning the presence on full and turning down the treble. Seems to work pretty well in a big band setting to try to emulate the F Green sound when using a magnetic pickup.

**jorgemg1984** · 07-02-2015, 04:07 PM

Originally Posted by Jazz_175

So, is this Accutronics BTDR-2-S reverb supposed to be much better than the one they put so far?

I did that mod and the difference was HUGE. The Accutronics is a great reverb, although a little spacey.

**jzucker** · 07-02-2015, 04:32 PM

Originally Posted by Woody Sound

7.2k is the "presence" control. 3k is the "treble." I think the idea is to use the 7.2k knob as a tweeter vol. Sorta. The Raezer ER cabs have a vol control for the tweeter. I think it works well. with magnetic pickups you barely hear any difference. Just a touch of crystal clarity. But with piezo, mics, etc, it makes a noticeable difference.

7.2k is above the range of a guitar speaker unless you're playing through a FRFR speaker. That's why it does nothing for guitar. An electric guitar typically produces almost nothing above about 4.5k. The speaker I'm currently using in my mambo has a freq response of 50hz-3.8k. 7.2k ain't gonna do much for it. A presence control is not just a high treble control.

**BigDaddyLoveHandles** · 07-02-2015, 07:58 PM

Originally Posted by medblues

Evans has 500 W on tap for about the same weight but a little more expensive. The reverb of the new Henriksen may be a bit better though. Hmmmm.

500W? Evans offered higher wattage models that put out 500W @ 4ohms for a while, but they are back to their RE300 and SE300 models now. At 8 ohms (ie, no extension cab plugged in) these Evans amps are actually 150W, not 300W. So apples-to-apples, the wattage difference to the Hendiksen isn't that dramatic.

**medblues** · 07-02-2015, 08:58 PM

Originally Posted by BigDaddyLoveHandles

500W? Evans offered higher wattage models that put out 500W @ 4ohms for a while, but they are back to their RE300 and SE300 models now. At 8 ohms (ie, no extension cab plugged in) these Evans amps are actually 150W, not 300W. So apples-to-apples, the wattage difference to the Hendiksen isn't that dramatic.

That's partly correct. Moreover, it is not easy to find 4-ohm guitar speakers that can take 500W. I talked to Scot Buffington and he is able to offer the 500W version but with an 8 ohm speaker.

Ron Eschete (RE in RE300) uses an RE500 model (advertised on the website also) that puts out 500 into 4 ohms. Into 8 ohms, that would be 300+ watts, no ? I am not saying it is all in the wattage however. My goal is follow Jim Hall's strategy: the louder the amp the softer I can play (hopefully with less noise floor)

**BigDaddyLoveHandles** · 07-02-2015, 09:42 PM

Originally Posted by medblues

That's partly correct. Moreover, it is not easy to find 4-ohm guitar speakers that can take 500W. I talked to Scot Buffington and he is able to offer the 500W version but with an 8 ohm speaker.

Ron Eschete (RE in RE300) uses an RE500 model (advertised on the website also) that puts out 500 into 4 ohms. Into 8 ohms, that would be 300+ watts, no ? I am not saying it is all in the wattage however. My goal is follow Jim Hall's strategy: the louder the amp the softer I can play (hopefully with less noise floor)

Do they currently sell *500 models? Home | Evans Custom Amplifiers

EDIT: I see the head they are selling is only 100W (@8 ohm).