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Adding another ARC AMP to Tympani - D-400 or 2x 100.2 (SS) ..or 2x D-150 (tube) ??

Hello All. I have ARC PRE SP6 and D-250 Mk-ll tube AMP, but going for bi-amp now.

Current 2nd market offer here in Europe allows me to choose among these three (as of now).

D-400 would go on mid-bass (great to keep my valve sound on treble) and seem to be the most appropriate combo. Well, Keep in mind this is not the MK ll version (1993). (Does it matter??)

2x 100.2 (or D-150) would go on treble section. 150 offers tube coherence,  100.2 is possibly more reliable, modern and precise? (I never heard any, l just trust ARC Zunreservedly

My Tympani system has 6+4 panels, another reason to prefer the D-400 capacity?

In case, l can hold on waiting for st else, anyway keep in mind that my budget is 2-4000$ max.

Yes, l love funk music played aloud, and chamber music sometimes.
128x128gian54
gian54's avatar
gian54 OP
5 posts
 
TY. I am going to get it done by pairing two T 1-D sets together. And yes, l will brace the 2 low-bass panels together. Then l will check for the most appropriate XO frequency (say 100 to 250 Hz), to get a T lll-b like sound .
Initially, l keep the internal XO between treble and high-mid.
bdp24's avatar
bdp24
9,788 posts
 

The T-ID has 3 panels per side, so how do you end up with 6 + 4?

The x/o between the midrange driver and the tweeter is almost always left as is, though some fanatics replace the stock parts with boutique ones of the same value. Separating the mid from the tweet electronically (and amplifying them separately) doesn't afford any improvement over stock.

When I said brace the bass panels, I didn't mean to each other (thought that IS a good idea), but rather to the ceiling or back wall. Another way to do that is with the Mye stands Grant makes for the Tympanis. Not cheap, but real good.

gian54's avatar
gian54 OP
5 posts
 
Hello. In a way to go for deeper bass Extension, l just get rid of treble panels in the second set. (Easier to set, manage... and yes, l will brace them with a central beam, l can't manage rods to the wall...)

I found a discussion here (2008; sgr) with  MG proposing a trapezoidal setting with 2 pairs of loudspeakers. I will happily go for it.

I much appreciate your considerations about the internal crossover!  as a) EB21 is active on the bass end but passive on the hi end of spectrum; and b) power requirement is 80% or more dedicated to the bass section.
I just recapped mine.

Options remain open, whether to amplify the additional 4 mid-bass panels separately (4ohm) or in series with the existing ones (8ohm). And, at which cut-off (1000Hz, or less?)
Given the above considerations, and practicality , first option is simpler and better, l might say... so that the initial Tympani set is left as it is.
Initially, l was considering to add only 2 panels as sub-w below 100-150Hz, which means breaking panels and favouring only pumped up music vs musicality and ambiance...

TY  for your interest.  After 35 years, l smile every time Tympani get alive,  their sound is effortless all the time.
bdp24's avatar
bdp24
9,788 posts
 
My first great loudspeaker was the original Tympani T-I, bought in 1973. I now have a pair of Tympani T-IVa, the final version of the speaker. I bought them knowing the outboard cross-overs had been gutted (all that is left are the chassis, no internals), but since I was intending to bi-amp them with an active x-o, didn't care. If you can find one (it is out-of-production), the First Watt B4 is a nice little x/o, very well designed, built, and versatile.
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