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Old 23rd February 2013, 04:08 PM   #11
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Interestingly, I've just been listening with the tweeter unplugged (I've not done this since they fully bedded in) and can tell no difference in the highs. Maybe I'll leave them off from now on!
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Old 23rd February 2013, 04:30 PM   #12
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You're unlikely to get much more LF output with the Jordan in this enclosure since it has a substantially higher Vas. You'd be better off with one of the 4in MA drivers (which were the ~'default' units FH3 was designed for), or an equivalent TB.

Last edited by Scottmoose; 23rd February 2013 at 04:33 PM.
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Old 23rd February 2013, 04:49 PM   #13
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So, in order of propsed changes.

1. Finish tube amp and give it a whirl.

2. Try different cables and give it a twirl.

3. Failing the above, try different drivers and pray.

4. If I'm now at step 4 I'll probably have some Mark Audio drivers on the go with a lower efficiency possible making it easier to integrate a sub into the equation.

Feel free to edit and re-post my list :-)
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Old 23rd February 2013, 04:56 PM   #14
jrenkin is offline jrenkin  United States
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5. Build a sub-woofer.
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Old 23rd February 2013, 05:04 PM   #15
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Wrong order. Get your amplifier finished, but in the meantime, while you're doing that, spend < 10 on some 30ga magnet wire & try using that as speaker wire (I hate the term speaker 'cable' -it just adds justification to an industry largely based on quackery) while you're still running the Arcam. The point is to add a little distributed series resistance, artifically increasing the output impedance of your amplifier (which at present isn't a great match to the speakers), or, if you want to look at it the other way, raising the Q of the drive unit. It has some other effects too which we don't need to waste time on here, but it may help as a quick fix until you get your new amplifier up & running.

Last edited by Scottmoose; 23rd February 2013 at 05:08 PM.
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Old 23rd February 2013, 05:11 PM   #16
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Is that awg wire? I'm not familiar with wire gauge standards at all.
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Old 23rd February 2013, 05:16 PM   #17
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Adding a woofer really does mean adding a 2nd amp, even if just a plate amp.

Our stealth woofers are done and work well.

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Old 23rd February 2013, 05:19 PM   #18
xrk971 is offline xrk971  United States
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AWG is American wire gage standard. Tables all over the web. 30 gage is tiny - 0.01 in dia or 0.255 mm dia. If increasing resistance is what is needed I should revise what I said about the bandpass sub woofer in my earlier post. Maybe you should connect them in series and gt an extra 8 ohms of resistance which is burned off as extra bass rather wasted as heat in heating the 30 gage wire. 30 awg in copper is 0.3 ohms/meter so you would only be burning of say 1 ohm for a 3 m run so not a fair comparison.
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Old 23rd February 2013, 05:20 PM   #19
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A plate amp I can stomach its just another seperate integrated amp I don't want.
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Old 23rd February 2013, 05:21 PM   #20
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Quote:
Originally Posted by mudchute View Post
Is that awg wire? I'm not familiar with wire gauge standards at all.
Yes. Close as you can get.
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