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MBL 101 (~1990) - amp suggestions.

Does anybody have experience with those speakers:
Designation was MBL 101, or MBL 101a/b/c (letters may designate colour).
They have _no_ cone drivers, only three 'Radialstrahler' units, the same size units as in later/current MBL 101 range, but lower crossover points. Subwoofers (MBL 201) were optional, I do not have them.
So far I have tried the following amps:
Pass Aleph 4: almost there, but feels like lacking authority. Also, female vocals seem to suffer (males fare better).
300B SET (glasshouse/hificollective): they make sound, even loud if pushed (circuit allows 300B to go A2), yet the match is poor, orchestra becomes a mess.
Moderate power SS AB amp ("INnovative Audio Ultrapath"): pointless. Sounds flat and gutless, worse than Aleph 4 or SET.
Mark Levinson 23: the best match so far. Controlled and effortless; merciless at times (poorer recordings are exposed for what they are).
-- Do you think I can [substantially] improve over ML 23?

inefficient
tomic601's avatar
tomic601
12,865 posts
 
yes Musical Fidelity AMS50
I have heard them w subs with AMS100....incredible

a big Threshold also more than up to task...
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rauliruegas
12,859 posts
 
Dear @inefficient: Which your $$$ floor level for it.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.





inefficient OP
40 posts
 
  • On MF AMS50:
interesting in general, but I don’t see it working from a technical pont:
76w in 4 Ohm do not seem to do the trick @ 80 dB/W (or even 80 dB/2.83V).

To R.:
in ‘cost no object’ situation I’d start with a pair of ML 33 and see if they are any good.
In real life I tred ML 23, I could get a Krell ksa 250s, probably a ML 333, a Pass X350...
or —and that is quite realistic right now — another Pass Aleph 4 and run them paralelled one per channel.
= I look for ideas and _experience_
Experience with old MBL 101 seems a scarce commodity though...

audition__audio
1,348 posts
 
MBL makes amps that are on the warm side and I would think would be a very good match for these speakers. These can be had used at reasonable prices. You need lots of power!
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