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- Path: sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!uwm.edu!csd4.csd.uwm.edu!info-high-audio-request
- From: peterca@ento.csiro.au
- Newsgroups: rec.audio.high-end
- Subject: Re antique audio
- Date: Wed, 18 Nov 92 18:02:24 EST
- Organization: University of Wisconsin - Milwaukee
- Lines: 47
- Approved: tjk@csd4.csd.uwm.edu
- Message-ID: <1edhsaINNfun@uwm.edu>
- NNTP-Posting-Host: 129.89.7.4
- Originator: tjk@csd4.csd.uwm.edu
-
- While agreeing with Dick Pierce that the speakers of the 1950s were made
- without the benefit of the work of Thiele, Small etal. and as such were
- necessarily a hit and miss approach, I'm sure some of the gear of the era
- is worth salvage. Specifically some amplifiers were pretty good. I am
- happy that my 1950s Leak
- TL12 is not out of place in my otherwise fairly modern system but I
- wouldn't use the speaker or turntable it came with . The one problem is
- that it lacks power by modern standards even though my speakers are not
- especially inefficient by modern standards. The proffesional recording
- gear and the disc cutting equipment must have been pretty good because
- there is plenty of good sound on many 1950s LPs which I regularly play and
- enjoy as much as modern recordings. Perhaps the studio monitor speakers
- were good enough to avoid making gross errors in the recording but weren't
- good enough to hear just how good those recordings were (ditto for the
- turntables). My TL12 benefited from a large increase in power supply
- capacitance which would have been impractically bulky at the time (and
- other mods). The design of crucial components like the output transformer,
- however, must be sound for my mods to have yielded improvements.
- In the 1950s making watts in an amp was expensive and making an efficient
- horn speaker was easy and you only had to accomodate one. Solid state
- brought cheaper watts and so you could afford to make smaller but less
- efficient speakers which were easier for stereo placement. It would seem
- axiomatic to me that it is easier to make a good sounding small amp than a
- good sounding big amp, all else being equal. People are rediscovering the
- good small 50's amps but having problems with their modern speakers. What
- I would like to know is whether (with the benefit of Thiel, Small elal) it
- is now possible to make fully modern quality speakers with the efficiency
- of the 1950's. Such a speaker would be in demand from people like me who
- have old amps. I realise that I could get just as good or better sound
- with buckets of power from any one of many high end marques but not for the
- few dollars that my amp cost. For the audiophile on a budget a tweaked old
- amp is excellent value but for the problem of finding an efficient modern
- speaker.
- What I'm hoping for is something equivalent to 90db/w/m with (say) 100W
- (typical modern system). Using my 12W amp, I would need around 99db/w/m.
- Are there reputable, quality designs for such speakers floating about which
- a home constructor could try? Will it necessariy be a horn?
-
- ----------------------------------------
- Peter Campbell
- C/O Div. Entomology, C.S.I.R.O.
- Box 1700 Canberra A.C.T. 2601
- Australia (peterca@ento.csiro.au)
- Ph.61-6-2464158 (w), 61-6-2516213 (h)
- ----------------------------------------
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