This is another example of 'efficiency rules' and why woofers like the 2235 should not be used in the midrange
The man said it sounded like a hi-fi woofer and it couldn't be otherwise.
This is also typical for many modern hi-fi midwoofers, such as the aforementioned ScanSpeak.
It's also the reason why Avantgarde direct radiating cone speakers s..k.
If you cross the 2235 around 800 Hz, the comp. driver will also stand out too much > lack of integration/homogeneity.
The man said it sounded like a hi-fi woofer and it couldn't be otherwise.
This is also typical for many modern hi-fi midwoofers, such as the aforementioned ScanSpeak.
It's also the reason why Avantgarde direct radiating cone speakers s..k.
If you cross the 2235 around 800 Hz, the comp. driver will also stand out too much > lack of integration/homogeneity.
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I never think its good to cross the 2235h over 160-180 hz, its not made for 3-800 hz.
155 gram mms can´t play midrange tones
Despite the apparent qualities of the E-145, the 3rd harmonic starts to rise above 300 Hz, which I attribute partly to the straight cone and which may also contribute to the perceived openness and reproduction of details.
Furthermore, the response doesn't rise gradually with frequency as with the PD.153C002.
Furthermore, the response doesn't rise gradually with frequency as with the PD.153C002.
"I was talking with a man here in sweden who liked the e-145 more than the 2235 up to ca 600hz, more attack he said..."
Even if you tuned it 25 hz do you think?
And wonder how many liter he used to say that?
Mine is in ca 97 liter ported with 2 X 100 mm port´s about 43 cm long.
Cabinette walls are 75 mm and 42 mm in 2 layers with 2-3 mm aucustic glue between.
And plays real high quality bass up to ca 150 hz xover
I use both 2235 and E-145s in my HT mains. 2235's as subs tuned to 26hz Q2 +6 dB B380.clone crossed @ 80 Hz to E-145's 5 cubic ft 40hz crossed @ 300Hz to 2123's Great bass combo fast with weight.
Rob 🙂
Rob 🙂
That seems to be the most sensible application of the 2235 & E-145.
Despite its light cone the E-145 isn't a wideband driver like the PD.153C002.
Despite its light cone the E-145 isn't a wideband driver like the PD.153C002.
"2235h vs. E-145 in 5 cubic feet plywood-enclosure, 2235h tuned to 30hz, E-145 tuned to 40hz."
J. B. Lansing is probably the greatest genius in the history of loudspeaker (driver) technology.
In Japan there's a belief that Lansing - in his early years when he worked as a contractor - made the most important contributions to R&D of almost all known Western-Electric drivers from the 1920s and 30s.
At that time, it was common for patents to be granted to certain people within a (large) company, without mentioning 'third parties'.
One of the most prominent adherents of that 'theory' is Tamon Saeki, former CEO of Mitsubishi and author of several books on the history of loudspeakers.
In Japan there's a belief that Lansing - in his early years when he worked as a contractor - made the most important contributions to R&D of almost all known Western-Electric drivers from the 1920s and 30s.
At that time, it was common for patents to be granted to certain people within a (large) company, without mentioning 'third parties'.
One of the most prominent adherents of that 'theory' is Tamon Saeki, former CEO of Mitsubishi and author of several books on the history of loudspeakers.
I'm a novice with prosound and appreciate your advice very much. I clam-shelled smallest-magnet Scorpions "isobaric" 90L (stacked cubes) to good effect, and will do same with these very heavy Black Widows omni-directional over a steel can 90L, expecting Fc~62hz due to halving Vas (per formula below). Minimalist least-effort approach. (Ported/OB/not-horizontal they would have to be force-cancelling.)
I couldn't find the PD 15" you mentioned but PD.153ER 40-4.5khz may be available here. Celestion is of course more common new or used; please recommend models (any brand, availability will be spotty at best).
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@Ro808 Tip 1.2 Your another recommendation -
FTR15-3070C, Distortion measurement great, Le better than PD.153.
Hi Duke
So what were your "goal posts" for this monitoring setup in term of max SPL, distortion and frequency response ?
If it sounds as good as it looks then it is definitely cool.
Regards
Charles
According to a knowledgeable member:
"I really like the Celestion. It can be used very flexibly from 80-170l."
- Project with Onken cabinet
Straightforward 2-way BR cabs, such as these:
A Celestion FTR woofer is used in this (expensive) Tobian system:
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