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  1. Replies
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    Well thatís good and your persistence has paid...

    Well thatís good and your persistence has paid off.

    I meant that Dirac might help fine tune the response.

    At some point (delayed with Covid 19) l will offer an analogue active crossover with a...
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    Have you considered the Dirac Minidsp ? Used...

    Have you considered the Dirac Minidsp ?

    Used correctly itís a good option for an all digital signal chain.

    My other point is that getting a two diy loudspeaker to sound right is not to be...
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    The Amp Camp kits have been around for a while....

    The Amp Camp kits have been around for a while. About 8 watts.

    The active crossover.

    This is a diy electronics kit requiring full assembly, setup and testing. It uses low cost Fairchild J113...
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    For those who want to build a kit it’s a...

    For those who want to build a kit it’s a possibility. It comes back to the old chestnut of the user having to figure out the adjustments which for a precise system like the Everest would be...
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    Are you a geriatric? ....Lol.

    Are you a geriatric? ....Lol.
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    There seems to be a need for guidance and...

    There seems to be a need for guidance and technical advise on all manner of things associated with these systems. A lot of information is now buried, fragmented or dated as time marches on.

    To...
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    There seems to be a need for guidance and...

    There seems to be a need for guidance and technical advise on all manner of things associated with these systems. A lot of information is now buried, fragmented or dated as time marches on.

    To...
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    As l am sure you all appreciate COVID 19 is going...

    As l am sure you all appreciate COVID 19 is going to be around for a while and unfortunately this has impacted on plans to get product to market on a number of levels.

    However, l thought l would...
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    Very nice.

    Very nice.
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    Hi Giuseppe, I hope these responses provide...

    Hi Giuseppe,

    I hope these responses provide you with some guidance.

    The Jbl 2118 8 inch driver is another option. This is a relatively high efficiency mid bass driver. But bass response is...
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    Have a look at these threads for guidance. A...

    Have a look at these threads for guidance.

    A better approach would be to consider the L220/L222 components and crossover schematic.

    The 2123H will beam tightly above 2500 hertz and cone...
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    Absolutely The whole job is only as good as...

    Absolutely

    The whole job is only as good as your drivers so itís worth getting them right.
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    Good plan

    Good plan
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    You need a reasonable signal voltage which l...

    You need a reasonable signal voltage which l donít recall off hand and sweep oscillator and a power amp. Ideally an oscilloscope to evaluate the sine wave. Also ear muffs.

    One slip of the screw...
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    If you have no experience then get a professional...

    If you have no experience then get a professional technician to do it like our Edgewound at Upland loudspeaker repairs. It’s not as simple as it might seem and to do the job properly requires...
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    Greg Timbers holds Quick Silver valve power...

    Greg Timbers holds Quick Silver valve power amplifiers in high regard for the horn in the Everest.

    Gregís system has continually evolved and is now quite complex. The sound is absolutely superb.
    ...
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    If you are referring to measured impedance YES...

    If you are referring to measured impedance YES and YES (referring to charge coupled I assume)

    The thing to understand is that a multi meter will only give you a dead or alive resistance which is...
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    Itís a first world problem with building these...

    Itís a first world problem with building these vintage systems.

    To explain the actual measured ac impedance of the nominal 16 ohm drivers is around 12 ohms.

    The dcr as l recall is around 6-7...
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    They are nice

    They are nice
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    Try Parts Express

    Try Parts Express
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    Yes. Particularly if searching for them in EBay....

    Yes. Particularly if searching for them in EBay. And you donít know what condition they are in.

    From Jammin Jersey they check everything and tell you if itís original diaphragms etc. l am saying...
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    No worries, I might ask you to return a favour...

    No worries,

    I might ask you to return a favour at some point.
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    An update. In view of the current...

    An update.

    In view of the current circumstances this is going to take a bit longer than expected to get to market so bare with us.

    Some progress. l just signed off on the industrial design by...
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    https://jamminjersey.com/detail/007490/jbl-2405h-c...

    https://jamminjersey.com/detail/007490/jbl-2405h-ceramic-magnet-slot-tweeters

    Click on the link and you can email Mark Leonard. I bought a large shipment recently and it was well organised.
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    Just be aware the Beyma slot has lower...

    Just be aware the Beyma slot has lower sensitivity than the 2405H.

    Try Jammin Jersey in Northridge CA
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