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Team Trace Elliot pt4.

#2,101
Wasnex said:
The low frequency response will vary with the cabinet design, so the raw response plot is not indicative of how the driver performs in the ELF 2x8. AFAIK raw response curves are developed with the driver essentially mounted on a flat panel in an anechoic room.

Not sure if most companies use the same or similar procedure, but you may find this page informative.

What is a Frequency Response Chart? | Jensen Loudspeakers

www.jensentone.com www.jensentone.com

Here's an example using the Eminence 3015LF (for convenience). The charts are not scaled the same, so I aligned them at 100hz. The top chart is the raw response plot for the 3015LF. The bottom plot is the 3015LF in a 6.651 cu ft enclosure tuned to 38hz.
View attachment 7021549
Click to expand...
I see what you mean.
I looked the driver up on parts-express DOT com and here's what they showed:

Parts Express Staff Recommended Enclosure Volume​

Sealed Volume0.3ft³
Sealed F3131.8Hz
Vented Volume0.6ft³
Vented F355.8Hz

[~ Never mind the sealed data. ~]

So not too shabby for a small cab.
2x8 (and twice the cab volume) should go a bit lower.
Thank you again for going to the trouble to give me this information!
 
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#2,102
17465.jpg


My new Tracey... 🥰

Great condition, still has the original tubes, which are supposed to be still good. Amazing Sound, but has quite some ground hum, unfortunately, but a recap after 32 years is inevitable, I guess.
 
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#2,103
JMX said:
View attachment 7086377

My new Tracey... 🥰

Great condition, still has the original tubes, which are supposed to be still good. Amazing Sound, but has quite some ground hum, unfortunately, but a recap after 32 years is inevitable, I guess.
Click to expand...


Is the ground hum present at the speaker output, D.I. effects send, line out, and headphones out?

Checking where it is, and isn't present, should help you track it down.

This wouldn't apply to your amp, but I found that when I had a constant low frequency hum, it turned out to be because there was no bulb in the blacklight socket, and simply disconnect the flying lead from the quick connect at the starter, solved the problem - you may have an equally simple, non-invasive solution.
 
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#2,104
JMX said:
View attachment 7086377

My new Tracey... 🥰

Great condition, still has the original tubes, which are supposed to be still good. Amazing Sound, but has quite some ground hum, unfortunately, but a recap after 32 years is inevitable, I guess.
Click to expand...
32 years on the caps is no guarantee, I've seen 98% of 60 year old caps just fine still. There is a procedure to "reform" caps if you are concerned. I am not comfortable posting it not knowing the expertise of everyone who may read it. The best I have found involved an inline component added temporarily. A browser search would be your friend. Lots of things to check and look at before you go dumping caps.
 
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#2,106
Not saying this will apply to your amp, but as an example to impart to you. Before I moved and was still doing repairs a local Bassist I knew well finally bit the bullet on a 1972 Ampeg SVT. Sounded pretty good but it had this annoying hum. A local ripoff shop quoted almost a grand to do a full re-cap and misc new tubes. I had him bring it over, long story short , Hum Balance pot adjust, properly bias and the amp was healthy. Had a few cosmetic issues, but it was a player.
Sometimes it can be simple before someone actually makes it hard.
 
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#2,107
Just made the official jump to Trace Elliot. I picked up a 2x8 cab and a 1x10 cab. It will be my newest mighty mini rig. I will get a pic as soon as they arrive. Going to power them with my Genzler Magellan 350. I have never been a fan of Neo speakers, so I am hoping this is a great working set up for maybe 50 shows per year.
 
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#2,110
Been using my GP12 SMX recently with the Pre-shape engaged and really enjoying it (finger and pick style rock) with surprisingly no problem sitting in the mix and a much richer tone with shape 2 engaged.

My question is are the two EQ shapes, ie the pre and my own 12 band slight lower and upper mid bump, now overlaid? Or does the Pre-shape cancel the 12 band? If the two overlay, then the only "true" Pre-shape would be with the 12 band set flat?
 
#2,111
C-60 Bass said:
Been using my GP12 SMX recently with the Pre-shape engaged and really enjoying it (finger and pick style rock) with surprisingly no problem sitting in the mix and a much richer tone with shape 2 engaged.

My question is are the two EQ shapes, ie the pre and my own 12 band slight lower and upper mid bump, now overlaid? Or does the Pre-shape cancel the 12 band? If the two overlay, then the only "true" Pre-shape would be with the 12 band set flat?
Click to expand...

From what I remember, the EQ can be bypassed. So it depends on which options you select.

You basically have:
  1. Preset out/EQ out
  2. Preset out/EQ in
  3. Preset in/EQ out
  4. Preset in/EQ in
With option 4., both are overlaid.
 
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#2,117
C-60 Bass said:
Been using my GP12 SMX recently with the Pre-shape engaged and really enjoying it (finger and pick style rock) with surprisingly no problem sitting in the mix and a much richer tone with shape 2 engaged.

My question is are the two EQ shapes, ie the pre and my own 12 band slight lower and upper mid bump, now overlaid? Or does the Pre-shape cancel the 12 band? If the two overlay, then the only "true" Pre-shape would be with the 12 band set flat?
Click to expand...
From the SMX Operating Instructions:-
Screenshot_20250108_232932_Samsung Notes.jpg
 
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#2,118
Wasnex said:
From what I remember, the EQ can be bypassed. So it depends on which options you select.

You basically have:
  1. Preset out/EQ out
  2. Preset out/EQ in
  3. Preset in/EQ out
  4. Preset in/EQ in
With option 4., both are overlaid.
Click to expand...
I like the preset 1 punched and then use the graphic to bring some mids into the signal. Tune to the moment/room, but that's how I think I'm getting the most of the Trace flavor.
 
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