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    If using in an active XO, time aligned setup,...

    If using in an active XO, time aligned setup, there is propagation delay in these amps, the XO delay will need to be readjusted accordingly.[/QUOTE]

    Can you please expand on that statement yes I...
  2. Yes we forget sometimes to listen to the music.

    Yes we forget sometimes to listen to the music.
  3. Yes

    Yes
  4. Best driver to take over from JBL 2450 on E-JMLC 300 horn.

    Best driver to take over from JBL 2450 on E-JMLC 300 horn crossed at 8000 hz to Beyma Slot tweeter now.

    Looking to drop the crossover point down to say 6000 hz any non JBL would be acceptable....
  5. I found a pair of JBL 1400 sounded a lot better...

    I found a pair of JBL 1400 sounded a lot better than the 2123 crossed at 160 hz or even lower to the 2245 and then 800 hz to JBL 2450s on E-JMLC 300 horns.
    You will need something up top 8000 hz +...
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    Thanks for that. Another post on DIYAUDIO claimed...

    Thanks for that. Another post on DIYAUDIO claimed it summed the Channels when set low.
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    I have been informed that this amplifier summs...

    I have been informed that this amplifier summs the output at low frequency settings can anyone confirm?
    If so that would mean buying two and running in mono mode!
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    My old Yamaha M80 runs my JBL 1400s but its old...

    My old Yamaha M80 runs my JBL 1400s but its old and unreliable. My M60 went up in smoke recently.
    I was thinking of trying a Crown XLS 2500 on the JBL 1400s they cross at 160hz and 800hz.

    I find...
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    Crown XLS 2500 instead of Yamaha M80?

    I use the Crown XLS 2500 on my JBL 2245s with great success the fans hardly ever kick in on a domestic system and are virtually inaudible.
    As this is supposed to be high end HiFi I was thinking of...
  10. Go to the Marchand website you can download a...

    Go to the Marchand website you can download a very good programme there.
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    The problem with DSP is the DACs. A Dac has a...

    The problem with DSP is the DACs. A Dac has a major influence on the sound.
    My ideal system would be DSP outputting in 4 channels digital to four dacs using Stereo Coffee Lightspeed attenuators for...
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    Its a Crown XLS 2500 not an expensive amplifier...

    Its a Crown XLS 2500 not an expensive amplifier but it controls the JBL 2245s far better than my Musical Fidelity KW 500 did.

    Another revelation one of my Yamaha M60s went faulty so in desperation...
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    I don't know if this is any help but I run 4 way...

    I don't know if this is any help but I run 4 way active with a Marchand XM44 3 way crossover, the Crown class D on the bass has its own crossover.

    With the DAC having such a large influence on the...
  14. I now use a lightspeed attenuator as my main...

    I now use a lightspeed attenuator as my main control and noticed an immediate increase in bass control, I guess a better impedance match. Now I am going to contradict myself, my Lampizator DAC went...
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    Yes I have had a good look through the Forums, My...

    Yes I have had a good look through the Forums, My system is flexible enough to try experimenting till I get the best sound for my listening room.
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    Best tuneing frequency for JBL 2245

    I have a pair of JBL 2245s in 8 cubic feet boxes with two 6" dia ports 12" long this is giving me about 32 Hz from the ports measured.

    It seems that I could increase the length of the ports (...
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    TAD TL 1102 instead of JBL 2123

    Just wondering how the TAD TL 1102 performs in place of the JBL 2123? Crossing 160 Hz and 800 Hz.
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    Jbl 2213 for midbass?

    Just wondering if the JBL 2213 is any good for midbass crossing from 160-260 hz then 800hz?

    What volume box would be best?

    Thanks

    Dave
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    exaSound e28 Multichannel USB DAC. Has anyone...

    exaSound e28 Multichannel USB DAC.

    Has anyone tried one of these in a 4 way active system?
    Dave
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    Not my words but very much what I believe: ...

    Not my words but very much what I believe:

    While I have a plethora of test equipment such as LMS which will run gated frequency responses to duplicate anechoic conditions, spectrum analysers,...
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    I started my design of a 4 way active system with...

    I started my design of a 4 way active system with the intention of using an Analogue Active crossover namely the Marchand XM 44. I wanted as simple a system as possible using drivers in there best...
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    Possibly too dense and whats it made of? May help...

    Possibly too dense and whats it made of? May help as a panel damping material?

    Some home insulation products in the UK have a high amount of wool in them but you will need to knock the dust out of...
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    My friend with a pair of JBL 2350s reckons my...

    My friend with a pair of JBL 2350s reckons my system sounds very good.

    Thanks for the advice I have received but I think its time for me to get some proper measurements so I can identify any...
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    Thanks Lee the consensus seems to be to go up to...

    Thanks Lee the consensus seems to be to go up to a 12" or 15" and looking at the response curves on some of the larger drivers that seems right.
    What I would really like is one of the modern drivers...
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    Substitute for JBL 2123

    I am looking at the alternatives to the JBL 2123. I cross from JBL 2245 at 260Hz now then on at 800Hz to JBL 2450 on E-JMLC 300 horns. I want to cross at 160Hz and 800Hz.

    Although the modern JBL...
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