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Thread: Confinement blues....

  1. #16
    Senior Member Eaulive's Avatar
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    Thank you all for your good words, for me it was an exercise in patience and dedication... I have this tendancy of building the rough parts and leaving the finishing. (Painting, sanding, veneering, etc.)
    I'm happy with my effort.

    We are discussing stuffing and porting in a different thread, this is the link for future reference.
    http://www.audioheritage.org/vbullet...288#post433288
    Last edited by Eaulive; 12-20-2020 at 01:55 PM. Reason: typo
    My avatar: 4520 loaded with 2225H on E140 frames,
    1x 2202H on custom front loaded horn, 2x 2426 on 2370.

  2. #17
    Senior Member Eaulive's Avatar
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    Ok, so... update for those interested.

    First for the low end. After cutting the ports I played with different positions in my living room. Turns out that the first position I put them created a huge dip centered at 49Hz from my listening position, hence the weird "flimsy" bass mostly on bass drums (rock, techno etc.), classical was basically OK.
    After relocation I managed to have a pretty flat curve down to +/-32Hz, and dropping smoothly below that.

    I still have them Biamped with the original 4345 crossover but since the drivers are very different (2202 and 2426/2370) I had some heavy EQ to make. DSP I use is a driverackPA+, here are the details.

    Crossover LF 150Hz LR12
    Low Limit 20Hz BW6


    Crossover HF 150Hz LR12
    High Limit: Open


    EQ LF
    Bell: 30Hz +4dB Q0.94 (that helps flatten the 2044 in an enclosure designed for a 2245, this was simulated in WinISD)


    EQ HF
    Bell:150Hz +6dB Q0.33 (to compensate for the difference in gain between the 2202 and the 2426/2370 not taken into account by the original 4345 Crossover)
    HShelf: 7.5kHz +8dB S4.5 (for the CD compensation)


    GEQ
    2kHz -2dB / 2.5kHz -4dB / 3.15kHz -2dB (to tame the harshness of the 2426/2370 in that vocal range and in classical music)

    Now I'm pleased, the sound I can say is very satisfying, I listen to rock, jazz, classical, electronic (everything but country and hip-hop)
    The bass is precise and punchy without emphasis at certain frequencies, no boominess.
    Vocals are extremely forward, the 2202 is very clean, I have to listen to them with an angle so I'm not directly in front of the speakers (I'd say 20 degrees) and they become very open, soundstage is amazing.
    I prefer to listen to them with the 2202 on the outside.
    What become very clear right away is the efforlessness in which they deliver insane volume levels, I really have to control myself.

    I'm gonna keep on fine tuning and the next step will be tri or quad amplification.

    I'll keep adding to this thread
    My avatar: 4520 loaded with 2225H on E140 frames,
    1x 2202H on custom front loaded horn, 2x 2426 on 2370.

  3. #18
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    Curious as to why you chose second order crossover filters when you had fourth order available and why you chose the 1/3 oct for the eq rather than the parametric.

  4. #19
    Senior Member Eaulive's Avatar
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    Good question
    For now I'm trying to reproduce what it would be like having a full range cabinet (no biamp) so I guess 2nd order L-R seemed appropriate.

    For the Graphic EQ, it's only because it was more convenient at the time, I'm still fine tuning.
    My avatar: 4520 loaded with 2225H on E140 frames,
    1x 2202H on custom front loaded horn, 2x 2426 on 2370.

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