Played the tastiest cab ever (IMHO) this past weekend

paisleywookiee said:
Suhr 2x12 PT15 diagonal, loaded with a V30 on bottom, Greenback on top. Reinforces my theory that a V30 in a 2x12 vert or diag would be lovely on the bottom when balanced out with a Green or Cream. This cab is light AF (49 pounds), and VERY easy to handle. With a Mini Recto, Studio 20H (JCM), and Mark V:35, it absolutely fucking rules. I'm seriously considering buying it, even though I don't currently have an amp. It was that good.


And I'm not even gonna shill the shop, because I don't do that. But seriously, this cab is awesome.

PT-2x12-angle.jpg

PT-2x12-back.jpg

Only complaints is that the handles could be a bit more comfy when lifting.

It could be because my biceps are yuge :rofl but this is literally a one-handed cab for me.
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My only problem with this cab is the price here in Europe, if you can find one.
 
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Ed DeGenaro said:
My fave 4x12 always been a Bogner with 2 Greenies in top and two V30 on bottom.
Played that from. 94-2013
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Love Bogner cabinets. My 4x12 has 2 Scumback black back style on top and 2 older Weber green backs on bottom. My stereo wet cabs have a V30 in each one. The greenback and v39 mix is a great combo imho.
 
Jarick said:
I'm really intrigued by a vertical 2x12, and a V30/Greenback or V30/Creamback combo sounds amazing. Mentally I just need to get over the hurdle of stereo vs mono, because part of my brain thinks a pair of 1x12's (or a stereo 2x12) would be amazing.
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laxu said:
You bastard...now I'm thinking if I should go do speaker swapping in my Bluetone diagonal 2x12. It's almost the same dimensions as that Suhr cab.
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paisleywookiee said:
That would be an amazing combo for sure. The Greenback tempers the V30 in a lovely way, with every amp I tried.
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All of these. I have an H&K 2x12 w/V30's, but I also like Green/Creambacks . . .
 
maddnotez said:
100db vs Greenback 98db sensitivity
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The sensitivity difference is due to high frequencies mostly which are scattered less so in theory we understand what you mean, but a 2db difference is imperceptible by most people. Also if you are using a mic this is irrelevant.
 
jay mitchell said:
Nope. Here's a GB response plot.

View attachment 52640

And here's a V30:
View attachment 52641
The V30 has greater average sensitivity than the GB from ca. 250Hz-1.5kHz and very similar sensitivity above 1.8kHz.
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Good point thanks. But that is the speaker FR when driven with 1w of power with a balanced signal like a sweep or white noise for instance.

If you measure a V30 average SPL say LAeq,1m playing with a fairly driven sound, at lest from our experience, you will see that SPL at around 2kHz is quite noticeable when compared to that of say a creamback.

Also that FR plot is tested in an infinite baffle setup where the internal volume of the “cabinet” is in theory infinitely large. When you place the speaker inside a cabinet you get all types of modes at higher frequencies and its behaviour changes a lot.

Should have probably said its frequency response instead of sensitivity though.
 
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Rawrawk said:
If you measure a V30 average SPL say LAeq,1m playing with a fairly driven sound,
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"Average SPL" is, by definition, frequency-blind except for whatever weighting (A in your citation) you use in the meter.

How do you define "a fairly driven sound" in a way that is repeatable? And what test conditions apply? IOW, cab placement, mic placement, proximity to room boundaries, etc.

Rawrawk said:
at lest from our experience, you will see that SPL at around 2kHz is quite noticeable when compared to that of say a creamback.
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How are you discriminating between "SPL at around 2kHz" and other frequency ranges? And what specifically does "quite noticeable" mean in decibels?

Rawrawk said:
Also that FR plot is tested in an infinite baffle setup
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Correct. There are, at least in principle, no enclosure effects on the response curves. That's by far the most reliable way to compare transducer responses when you don't know anything about the enclosures they'll be loaded into.

Rawrawk said:
When you place the speaker inside a cabinet you get all types of modes at higher frequencies and its behaviour changes a lot.
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Raw transducer response and box modes are independent of each other. Standing waves will alter the response of different speakers mounted in a given box in the same ways. A mode that causes, for example, a response notch at 550Hz will cause the same notch for any speaker mounted in it.
 
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Rawrawk said:
The sensitivity difference is due to high frequencies mostly which are scattered less so in theory we understand what you mean, but a 2db difference is imperceptible by most people. Also if you are using a mic this is irrelevant.
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0.5 db is perceptible by every single human I have ever tested with a blind A/B test and it is a 3 digit if not 4 digit number of people, including a ton of non-musicians and non-audiophiles. The idea that people can't perceive less than 3db is an Internet myth.

As for why to put the V30 in the bottom, I would use your ears, and also consider weight. I almost always put the heavier speaker in the bottom of a vertical cab.
 
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