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Thread: E 145 Questions

  1. #1
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    E 145 Questions

    I am contemplating a new build this coming year. Putting all my little things aside to focus on something bigger and better.

    My plans had always been cloning one of the big 43XX monitors of yesteryear. While it's still possible, I have been slowly gravitating to the idea of a two way build complimented with a subwoofer.

    This brings me to the E145. I am considering this driver based on a few things. From what I've read, it's got great tone, fast attack and a light cone. Sounds good on paper to me. I've got plenty of 2225/2226 variants in the area popping up, not often the E145. I was a big fan of the 2235 for a while and still am, but worry how high it will play and my reading tells me the E145 is more what I am looking for.

    - How high has the E145 been used? I read it has a peak at about 1750hz that can be nasty so it's not as well behaved up top as some others. Some folk throw the 2123 in there between 145 and compression driver.

    - Am considering something like the 2450SL or similar driver - possibly on a 290hz horn or something similar to allow me full use of the drivers range.

    - Sub would be something like a single (ideally dual) 2242 or 2245 filling in below the E145 in a large box.

    Any suggestions would be great, as I am new to this and just starting to figure out which drivers are any hell. Thanks.

  2. #2
    Administrator Robh3606's Avatar
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    Hello Morton

    I use them in my basement system. Also used an 811C clone as a center for years so I really like that driver. Fast clean and pitch perfect the only issue is re-cone kits. If I were you and have not invested in them yet I would go looking for some 2216's as used in the M2 or at least consider them. At least they should be supported for several years with cone kits. As far as how high well I would say at least 800Hz as in Everest 1 perhaps higher not sure what the crossover was in the 801C coax driver which was an E-145 with a 2425 compression driver.

    Rob

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    Iīve owned both, the 2235 and the E-145.

    My personal experience is, that a 2235 is not much fun in the midrange, even knowing it was used in the 4430 up to 1khz. It works, but the E145 clearly sounds better up that high. The 2235 sounds a little muddy above 300-400hz, even when driven with small signals. Going up in power it gets worse... The E145 sound very precise in the midrange and remains that attribute even at insane levels. I guess this might be the advantage of the underhang design.
    When using the E145 up to 800hz you shouldnīt worry about it peaks at aprox. 1,5khz... But it definatly needs support below 50-60hz!

    I would say this is the point where you have to decide what concept you prefer.
    Using the E145 with a mono sub works great in the midrange to a horn without a midrange cone. But with all the drawbacks of a mono sub. It can be very hard to get a mono sub integrated, be aware! If you have no roomacoustic-treatments it is even more difficult.
    Using the 2235 it gets much easier to achieve a nice sounding bass, as you have two bass-sources spread in your room. But in my opinion you would have to use a midcone (8-10") between the 2235 and a horn.

  4. #4
    Senior Member Ian Mackenzie's Avatar
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    Have you considered the 2234H (2235H without the mass control ring).

    The 2234H has a superior mid band performance and is a faster driver and more sensitive @96 dB.

    It also does not have the Xmax limitations of the E145 and can be EQd in the bass for similar extension of the 2235.

    If you have a 2235H you may wish to remove the mass ring and do some comparison.

    Other members have reported very good results in recent times with this recommendation

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    Quote Originally Posted by Robh3606 View Post
    I use them in my basement system.......
    Hey Rob, what do you use above (below?) your e-145 in your basement system?

    Like Rob, I have UREI monitors with the e-145 woofers (813C). As Dr.db mentioned, they are outstandingly natural sounding through the midrange. I believe the crossover point is approximately 1khz on the UREIs, but have never measured it. I use 2245h subs in 8 cubic foot boxes below them.


    I would imagine a 2 way (plus subwoofer(s)) would sound quite nice based on the tonality of the "C" generation of UREI monitors.

  6. #6
    Administrator Robh3606's Avatar
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    Hey Rob, what do you use above (below?) your e-145 in your basement system?
    Hello Rusty

    I use a pair of 2235's in B-380's clones so little brothers to your 2245's I like the way the 2235 and E-145 sound together. I just don't have the luxury of that much room! That must be quite an intense and effortless low end using 2245's! Those are my stereo subs I also have a pair of 2266's set up for LFE when the system is in surround mode.

    Use the E-145'S from 80 Hz to 300Hz. Above I have 2123's and PTH1010's with 435Be's.

    I would love to get my hands on a pair of stock 811C's. One day!

    Rob
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    Rob, thanks for the picture. Those look great and may give the OP some ideas. I was just looking at an old thread where Zilch posted plots of those waveguides. I understand your use of the midwoofer. http://www.audioheritage.org/vbullet...rns-Waveguides

    I don't remember seeing any threads by people building 2 ways with e-145s like the OP might be thinking about crossed at 750-800. That isn't a problem for the e-145 but your 3 way has advantages. A single 18" sub under either would probably sound great.

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    Quote Originally Posted by rusty jefferson View Post
    Rob, thanks for the picture. Those look great and may give the OP some ideas. I was just looking at an old thread where Zilch posted plots of those waveguides. I understand your use of the midwoofer. http://www.audioheritage.org/vbullet...rns-Waveguides

    I don't remember seeing any threads by people building 2 ways with e-145s like the OP might be thinking about crossed at 750-800. That isn't a problem for the e-145 but your 3 way has advantages. A single 18" sub under either would probably sound great.

    Here's one stunningly beautiful 3-way that shows off Olafs extremely talented wood-working ( & conceptualization ) capabilities.

    (Click the pic for the link )





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    Thanks Earl I know that build. Beautiful.

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    Senior Seņor boputnam's Avatar
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    Quote Originally Posted by mortron View Post
    I am contemplating a new build this coming year. Putting all my little things aside to focus on something bigger and better.

    My plans had always been cloning one of the big 43XX monitors of yesteryear. While it's still possible, I have been slowly gravitating to the idea of a two way build complimented with a subwoofer.
    If you get the 43XX "right", you won't have much need for a sub woofer - at least that has been my experience with the 4345. The two 2245H do an impeccable job with great tonality (low Q).

    But, that's just my experience - even in a 2.0 Theater night! Boom...

    bo

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