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Old 31st August 2006, 10:28 PM   #31
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Aha! Well, we all like surprises...
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Old 1st September 2006, 09:04 PM   #32
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Meronome B126 plans....
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Old 1st September 2006, 09:05 PM   #33
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and the sim... being a bipole no BSC required but they will need to be into the room a bit....
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Old 21st September 2006, 02:52 AM   #34
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Default Integrating Metronome w/ Sub

Steve, Dave, Scottmoose and others -- great work, very elegant. Steve, I'm wondering if you can say more about how you've managed the sub integration. Are you working with the natural bottom-end rolloff of the metronome?
Many thanks for a great thread.
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Old 21st September 2006, 03:22 PM   #35
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Hi John,

The design just uses the natural roll off of the Fostex driver to integrate with the sub.

Because the bass response with the mass loading is flat down to around 50Hz then rolls away rapidly the Metronome is very easy to blend with the sub.

I have my sub set at 40Hz and placed in a corner and there are no problems at all.
The bass is well-balanced and extended with no boom.

The FE108 Sigma version of the Metronome (the smallest of a range of DIY designs coming soon) is a brilliant small room speaker and with its minimalist elegance would look great in a small contemporary environment.

Anyone building this speaker will not be disappointed.


Steve.
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Old 9th October 2006, 09:52 AM   #36
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Hi Folks,

Just wondering if a BIB bass horn would sound good with a metronome fe108ez. Would it be too over powering? I just need an efficient sub-woofer that I could power with a T-amp. I would be running it as an active sub with the T-amp. Omnes Audio 2.1 amp. 2 T-amp 2024 modules, one for the mono sub with frequency 'thingy' (I know the german word for it!)

OR would a fe168ez achieve enough Bass to not need a sub?!?

I'm very attracted to the holographic sound you experience with these! Also the size! I've posted on the BIB thread too, as I want to do 2 projects, for fun and also so a friend of mine can also have a pair.

It's a pity that a pair of BIB's weren't in that great review with the son of frugals etc. Would have been good to compare the sound!

Cheers Stroop
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Old 9th October 2006, 10:19 AM   #37
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Sorry -both of my pairs of BIBs are out on loan at present. Next time...

Yes, they'd make a good match IMO. I see you're based in Europe, so a Monacor unit would be the obvious choice. FWIW, I'd use the SPH-165CP. Not too expensive, nicely built with a carbon-fibre cone. Should work well.
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Old 9th October 2006, 01:13 PM   #38
stroop is offline stroop  Germany
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Eeeeexxxxcellent!!!!

Hey Scott thanks a bunch!

Monacors should be good to get! I was looking at some scanspeak drivers...beautiful but not cheap. Scanspeak 18W 16545 K they are 17cm

* power handling (continuous/programme) = 100 W
* resonance frequency fs = 34 Hz
* impedance R = 14 Ohm
* sound pressure level SPL = 87 dB (2,83V; 1m)
* DC resistance Re = 10,6 Ohm
* voice coil inductance L = 0,4 mH
* effective piston radiating area Sd = 140 cm2
* effective mechanical mass incl. air load 14 g
* equivalent volume of compliance Vas = 53 l
* total Q factor Qts = 0,24 (Qms=4,9, Qes=0,25)
* maximum peak linear excursion vibration xlin = +/- 4,5 mm
* mounting diameter d = 157 mm
* overall diameter d = 177 mm

What should I look for in a driver...? By the way the Monacors do look very good!

Cheers Stroop
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Old 9th October 2006, 02:01 PM   #39
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Depnds how big you want to go, the application it's used in, and what you most value in sound. For a moderate sized BIB cabinet, a nice mid Qt in the 0.3 - 0.45 range with an equally moderate Vas (up to ~ 35 litres) is about right. The Scan Speak's look like nice units, but I doubt they'd offer any more than the Monacor's in this application -maybe less. Pricier too & better to keep the extra cash in your own wallet for a while. Gives you more to spend on music.
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Old 9th October 2006, 04:03 PM   #40
stroop is offline stroop  Germany
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Fair enough. I hear ya about the cash....and totally agree. I'll do the monacors!

Stroop
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