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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Tue May 24, 2011 1:42 pm
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msvolpe wrote:
Rebelsoul,
i got a 10A125 for a pro jr. 30 watt, light dope.

Been using a rajin cajun in there, but ive been having some trouble liking my tone for quite some time. i have a stash of nice preamp tubes, so its not that. using JJ's in the poweramp. i decided to try alnico speaker and see if that makes a difference (this pro jr came with the brown label emi, not the blue guy).

one major reason for this speaker change...i notice a strange fizzy aftertaste when im driving the amp hard with the cajun in, you can hear this as the overdrive/breakup decays. its even worse with humbucker guitars. i remember this same sound with an eminence oem speaker, in a different amp even, so i figured maybe ill try a non-emi speaker, and i wondered if the ceramic magnet was contributing to this. you could probably classify this as "harshness".
could anything else be responsible for this?


I've been very happy with my Emi Rajin Cajun in a PJ and no hum, hiss, rattles or hums. Possibly an isolated speaker defect? I do think that 'buckers don't play well with the PJs though.

Good luck! "The waiting is the hardest part"

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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Wed May 25, 2011 9:15 am
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Hey BB

the speaker arrived the other day. im in the process of breaking it in. it sounds nice at house volume, but i have yet to hear it wail. thats where the true colors will shine, for me anyway. the time will come soon.

actually, i read that you want to try to break in new speakers in a gradual controlled manner, and you shouldnt allow breakup before 15 hours of use, so thats the main reason right now why i havent heard it sing yet. but like i said, the time will come.


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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Wed May 25, 2011 9:18 am
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mike

yea, i dont know, i like to think youre right about the iso defect. in fact, i strongly believe it because there are way too many fans of this speaker for it to be a consistent issue. ah well...i'll see what happens now.

i hope you're wrong about buckers


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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Wed May 25, 2011 10:43 am
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The Webers I have all have gotten better with age,the oldest I have is about 10 years old in a '66 Deluxe Reverb,it's sounding great.
Normally,it doesn't take real long before it starts to loosen up some and can take some volume...that 10A125 with light dope is gonna impress you after a few days...I have had 2 in my '60 Super since around last August,and they seem to still be getting better.


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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Wed May 25, 2011 11:13 am
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msvolpe wrote:
mike

yea, i dont know, i like to think youre right about the iso defect. in fact, i strongly believe it because there are way too many fans of this speaker for it to be a consistent issue. ah well...i'll see what happens now.

i hope you're wrong about buckers


Single coils (Tele especially) sound best with my PJs. When I use
buckers I notice more sag or squish.

To best describe the differences, I found this on the web :

"An effect similar to sag is produced by cathode-biased amplifiers because the increased current through the power tubes increases the voltage drop across the bias resistor, which in turn decreases the current through the tube, with a time constant dependent upon the size of the bypass capacitor in relation to the cathode resistance.

This compression effect is commonly referred to as "squish" to differentiate it from "sag", which applies only to compression induced by power supply droop. "Squish" also is used when referring to the effect produced by the transient recovery time of AC-coupled amplifier stages. A sharp transient temporarily increases the effective negative bias, and the time constant of the RC coupling determines the recovery time following the transient.

Long time constants caused by large coupling capacitors in conjunction with large grid resistor values will increase the amount of squish in an amplifier. Too long a recovery time leads to "blocking" distortion. This is why it is not a good idea to use overly large coupling capacitors in the output stage of a guitar amplifier."

At any rate, good luck!

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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Wed May 25, 2011 1:37 pm
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Just ordered a Weber Signature 10S for the Pro Junior III. The wait is hard, and I guess it´ll take about 30 days, since it´s been shipped to Brazil. :cry:


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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Wed May 25, 2011 2:09 pm
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Miami Mike wrote:
msvolpe wrote:
mike

yea, i dont know, i like to think youre right about the iso defect. in fact, i strongly believe it because there are way too many fans of this speaker for it to be a consistent issue. ah well...i'll see what happens now.

i hope you're wrong about buckers


Single coils (Tele especially) sound best with my PJs. When I use
buckers I notice more sag or squish.

To best describe the differences, I found this on the web :

"An effect similar to sag is produced by cathode-biased amplifiers because the increased current through the power tubes increases the voltage drop across the bias resistor, which in turn decreases the current through the tube, with a time constant dependent upon the size of the bypass capacitor in relation to the cathode resistance.

This compression effect is commonly referred to as "squish" to differentiate it from "sag", which applies only to compression induced by power supply droop. "Squish" also is used when referring to the effect produced by the transient recovery time of AC-coupled amplifier stages. A sharp transient temporarily increases the effective negative bias, and the time constant of the RC coupling determines the recovery time following the transient.

Long time constants caused by large coupling capacitors in conjunction with large grid resistor values will increase the amount of squish in an amplifier. Too long a recovery time leads to "blocking" distortion. This is why it is not a good idea to use overly large coupling capacitors in the output stage of a guitar amplifier."

At any rate, good luck!


interesting...what do you suppose it is about the PJ that causes this? i've not a clue.
well anyhow, i'll wait and see how this speaker reacts with my LP when its broken in more. maybe i'll end up liking this sag effect. here's to wishful thinking!
on the bright side, im mainly a strat guy, but i do like to bring out the Les time to time. its been rather unuseable with the PJ, and I miss it dearly.


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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Thu May 26, 2011 5:03 am
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Sag is in evident in most tube amps with tube rectifiers,when pushed really hard,most people don't even know what to listen for....don't worry about that.
It's been around as long as tube amps themselves.


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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Thu May 26, 2011 8:20 am
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msvolpe wrote:
interesting...what do you suppose it is about the PJ that causes this? i've not a clue.
well anyhow, i'll wait and see how this speaker reacts with my LP when its broken in more. maybe i'll end up liking this sag effect. here's to wishful thinking!
on the bright side, im mainly a strat guy, but i do like to bring out the Les time to time. its been rather unuseable with the PJ, and I miss it dearly.


Billm has been working on that one for awhile. He does respond to email questions
too. :wink:

http://machrone.home.comcast.net/~machr ... pjmods.htm

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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Thu May 26, 2011 8:51 am
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I just replaced the speaker in my 1966 Princeton reverb with a Weber 10F150T (no dope, 50 watts). It took 3 weeks to get it. I think that the speakers are made in batches.

Anyhow, this has to be one of the best 10-inchers I've heard. Not completely broken in, it has great clarity on softer articulations, but hit a chord hard and it's instant power with tons of bass. Very sweet midrange, that matches the 6V6GT tone to a tee. Like the speaker was made for these amps.

Well worth the wait and $$$. IMHO.


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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Thu May 26, 2011 12:26 pm
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The Princeton Reverb's orginal Oxford 10J6 was pretty lame, even by the standards of the era. The Jensen C10S was a little better......

Weber's 10F150T is surely a better option than either.

Arjay

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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Fri May 27, 2011 4:36 am
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Odd, I only use buckers with the PJ and I love the tone, but then again I ride the tone and volume on my guitars. I do have one Les Paul and it seems to sound better with an ugly distortion amp.


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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Fri May 27, 2011 7:56 am
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nopedal wrote:
Odd, I only use buckers with the PJ and I love the tone, but then again I ride the tone and volume on my guitars. I do have one Les Paul and it seems to sound better with an ugly distortion amp.


Give it a ride with single coils and maxed! :wink:

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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Fri May 27, 2011 9:11 am
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Miami Mike, I guess I kind of posted like a snob. I like single coils. When I got the PJ the single coils were a little noisy. Not to the the people I play in front of but to me. I changed the stock Tele P/U's to buckers and that got rid of most of the hiss, and the amp still sounds great.


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Post subject: Re: Waiting for Weber speaker - the suspense is painful
Posted: Mon May 30, 2011 10:01 am
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nopedal wrote:
Miami Mike, I guess I kind of posted like a snob. I like single coils. When I got the PJ the single coils were a little noisy. Not to the the people I play in front of but to me. I changed the stock Tele P/U's to buckers and that got rid of most of the hiss, and the amp still sounds great.


Might just be *that* particuliar amp? The two that I use have no hums, hiss, rattles or buzz...maybe I'm just lucky?

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