HDTenEightyP/NetNews huggingface dataset:
From: kludge@grissom.larc.nasa.gov (Scott Dorsey)
Subject: Re: Carver????
Keywords: amps
Organization: NASA Langley Research Center and Reptile Farm
Date: Tue, 13 Oct 1992 13:49:46 GMT

In article <H.ea.p4AJwfn4Y7M@jonh.wimsey.bc.ca> jhenders@jonh.wimsey.bc.ca (John Henders) writes:
>In <1992Oct12.045423.7707@yenta.alb.nm.us> bo@yenta.alb.nm.us (Bo Farley) writes:
>
>>I have an opportunity to pick up some Carver PM 2.0 amps REAL cheap. 
>>Can anyone out there give me any specs on these doods. What is there rated
>>output at 4 ohms? will they REALLY run at 2 ohms? are they reliable?
>
>   Not to start the Carver religious war again, but my experience with
>Carver is mixed. I really wouldn't trust them at 2 ohms, and I'm
>somewhat sceptical about their performance at 4 ohms under hard driven
>conditions. I put 4 EV 1202's on a PM1.5a in a piano bar I did the
>install on, and it worked fine, but in that situation, it was never run
>near it's maximum output. I've heard, and have had a friend have
>problems with the same amp in a disco system. 

Well, I'm a representative of the pro-Carver contingent in this group, and
I agree with you.  They aren't high power amps, they won't drive two-ohm
loads, and they don't sound like they are doing to do a good job with the
kind of application Mr. Farley appears to be talking about.

They are "REAL" cheap, however, and for the price are damn good amps for
piano bars, home stereo, voice work, and other applications where their
full power won't be required for more than short transients.  With a highly
compressed waveform that has a lot of energy and a long duty cycle, they'll
sound pretty godawful because the power supply just can't keep it up.

>    Personally, I've heard them appear to run out of steam when driving
>the low end in a disco. If the kick drum is at a moderate tempo,  I can
>hear the bass line on synth or bass guitar momentarily drop in volume 
>after a kick beat. This is with each Carver fed from it's own 15amp
>circuit directly from a panel, which is the only way to assure the
>Carver gets enough power to work at it's claimed design limits, and even
>there, the whole idea of trying to draw power direct from the wall
>rather than storing reserves  in capacitors like conventional amplifiers
>just doesn't seem to work in  practice as well as it does on paper. I
>know the damping factor on their published specs goes for a big dump at
><8 ohms, but recent comments from people on rec.audio seem to claim that
>damping factor is not as important as manufacturers would lead us to
>beleive.

I don't know about this... it depends a lot on the kind if driver that you
are talking about.  With a very efficient driver, damping can become a big
factor, though with most modern speakers it's not as important as it once
was.  The Carver amps do require very clean power supplies, which is another
disadvantage.
--scott
From: robcruic@intacc.uucp (Robert Cruickshank)
Newsgroups: rec.audio.pro
Subject: Boss SE-50 manual needed
Date: 14 Oct 92 04:43:37 GMT
Organization: Inter/Access' Matrix BBS


Could someone help me out with a photocopy of the English language manual for
the Boss SE-50 effects unit? I would of course pay postage and photocopying
costs. Thanx!
----
-----------------------------------------------------------------
Rob Cruickshank               robcruic@intacc.uucp
                          Inter/Access Artists' Centre 
                                 Toronto
------------------------------------------------------------------
Newsgroups: rec.audio.pro
From: jrusby@darkwing.uoregon.edu (Jim T. Rusby)
Subject: help on locating obscure battery
Organization: University of Oregon Network Services
Date: Wed, 7 Oct 92 15:59:17 GMT


I'm trying to locate a source of batteries for an old but serviceable
wireless mic.  The battery is an Eveready E289  12.6 volt mercury battery.
It is about the same size and shape as a C cell, with clips on each end
similar to the clips found on the standard 9 volt battery.

Does anyone know of a supplier who is particularly knowledgable about
batteries?  I am tired of talking to telephone sales people whose
knowledge can be summed up by the statement "No, eveready doesnt list
those, sorry.... We would be happy to give you a quote on a new wireless
though"  Yeah, right.

Thanks all-
jim  rusby

jrusby@darkwing.uoregon.edu
Newsgroups: rec.audio.pro
From: murphyn@rtsg.mot.com (Neal P. Murphy)
Subject: Re: Carver????
Keywords: amps
Organization: Motorola Inc., Cellular Infrastructure Group
Date: Wed, 14 Oct 1992 20:59:53 GMT

jhenders@jonh.wimsey.bc.ca (John Henders) writes:

>In <1992Oct12.045423.7707@yenta.alb.nm.us> bo@yenta.alb.nm.us (Bo Farley) writes:

>>I have an opportunity to pick up some Carver PM 2.0 amps REAL cheap. 
>>Can anyone out there give me any specs on these doods. What is there rated
>>output at 4 ohms? will they REALLY run at 2 ohms? are they reliable?

>   Not to start the Carver religious war again, but my experience with
>Carver is mixed. I really wouldn't trust them at 2 ohms, and I'm
>somewhat sceptical about their performance at 4 ohms under hard driven
>conditions. I put 4 EV 1202's on a PM1.5a in a piano bar I did the
>install on, and it worked fine, but in that situation, it was never run
>near it's maximum output. I've heard, and have had a friend have
>problems with the same amp in a disco system. 

>    Personally, I've heard them appear to run out of steam when driving
>the low end in a disco. If the kick drum is at a moderate tempo,  I can
>hear the bass line on synth or bass guitar momentarily drop in volume 
>after a kick beat. This is with each Carver fed from it's own 15amp
>circuit directly from a panel, which is the only way to assure the

Good assessment. The Carver is wonderful for higher frequencies. At school,
the lighting and sound club used
    - AB Systems Precedent 1200 for DC-80Hz (EAW BRH-80? - 18" Gauss drivers),
    - AB Systems Precedent 900 for 80Hz-600Hz (EAW Forsythe 215 - 15" Gauss drivers),
    - Crown DC300A for 600Hz-1.2KHz (12" Gauss? drivers),
	- Carvers for the 1.2KHz-7KHz horns ('Zoids with Titanium diaphragms), and
    - a little 45W/channel for 7KHz and up (JBL slot tweeters).

The ABs and Crowns had plenty of iron and capacitors. The bottom end *always*
had punch. (Mind you, that punch wouldn't throw you against the wall in a 2500
seat gym, but it was still there.) The Carvers were great where we used them.
We never tried to make them produce lots of bass, because we knew they weren't
up to the task. We even had to stop using the DC300As for the low end because
they weren't up to the task either. They have a tendency to overheat when
driven hard for a long time, even with fans cooling them. The ABs just keep
pouring out the bass. And in the time I was there, the ABs never needed repair
or adjustment.

NPN
Newsgroups: rec.audio.pro
From: "wayne kelso" <wayne.kelso@canrem.com>
Subject: tempo ii 3.0 question
Reply-To: "wayne kelso" <wayne.kelso@canrem.com>
Organization: Canada Remote Systems
Distribution: rec
Date: 9 Oct 92 00:49:43 EST

NOECHO

TO: 76344.1750@COMPUSERVE.COM

I just received the 3.0 update {my original serial number is T2+ 
0311202480}today and I have a question concerning a new feature listed in 
the manual.
 I can't seem to find the Tempo Timer menu item listed on page 12 of the 
supplement manual.I even had a look in resedit to make sure that I wasn't 
missing something. Looks like a cool thing. What's up?
Oh yeah. I'm running 6.07 on a IICX 5/40.
Thanks in advance.
PS. great product!!!

Wayne Kelso

address:
>INTERNET:Wayne.Kelso@canrem.com

---
 * Freddie 1.2 * Sticks and Stones may break my bones, so quit it.
--
Canada Remote Systems  - Toronto, Ontario
World's Largest PCBOARD System - 416-629-7000/629-7044
Newsgroups: rec.audio.pro
From: huopio@lut.fi (Kauto Huopio)
Subject: Re: Monitors for small control rooms
Date: Fri, 9 Oct 1992 04:59:06 GMT
Disclaimer: Opinions expressed below are writers own.
	<HUOPIO.92Oct1223736@surukuku.cc.lut.fi> <5377@gold.gvg.tek.com>
Peruutus: Mielipiteet ovat omiani.
Organization: Lappeenranta University of Technology, Finland

In article <5377@gold.gvg.tek.com> chrisc@gold.gvg.tek.com (Chris Christensen) writes:

> In article <HUOPIO.92Oct1223736@surukuku.cc.lut.fi> huopio@lut.fi
> (Kauto Huopio) writes:

> >If you can reach these, and you need just passive speakers, try to
> >find who imports Genelec speakers and try to find if they have Genelec
> >Biway in their line. Small units, marvellous sound. They need quite a
> >lot of power to sound nice but anyway, IMHO, Good Speakers.

> I have heard a Genelec satellite/sub woofer system.  It did sound very
> nice indeed.  I 'specially like the geometry of the cabinets.  I am
> sure that Kauto likes them because because they are made in Finland! :-)

That is not the reason (the main one at least :) ). I've visited
Genelec factory in Iisalmi and got a very positive feeling. The people
designing the speakers and amplifiers are very professional. They have
one big test room and a very good listening room (very control room
-like acoustics). We listened for example the 1035A:s, used in many
big London studios. Something like 2*4 kW worth of active amplifying (in
two 1 meter high racks for the speakers gives a bit frightening
impression. Then I hear the figures: something like 128 dB(A) three
meters from speakers, 20 Hz-24kHz, _continuous_ output. And this is a
VERY high quality monitor speaker..

Now I understand why one has to shout for the older studio engineers
who have worked with rock musicians.. ;)

--Kauto

--
****************** Kauto Huopio (huopio@kannel.lut.fi) **********************
*  Mail: Kauto Huopio, Punkkerikatu 1 A 10, SF-53850 Lappeenranta,Finland   *
*****************************************************************************

Xref: sparky rec.audio.pro:1944 rec.audio:13683
From: gt0179a@prism.gatech.EDU (Mike Chu)
Newsgroups: rec.audio.pro,rec.audio
Subject: Portable DAT decks?
Date: 13 Oct 92 15:56:25 GMT
Followup-To: rec.audio.pro
Organization: Georgia Institute of Technology


Does anyone have any experience with Portable DAT machines -- namely the
Sony D3 and the Aiwa HD-S1.

Any thoughts on sound quality, build quality, value, dependability, etc...

I'm planning to do some minor live recording and some archival storage for
vintage records. 

Mike Chu    Please mail responses to my e-mail address.  
 
-- 
Mike Chu  --  Chemical Engineering
Georgia Institute of Technology, Atlanta Georgia, 30332
uucp:	  ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!gt0179a
Internet: gt0179a@prism.gatech.edu
From: lazzaro@boom.CS.Berkeley.EDU (John Lazzaro)
Newsgroups: rec.audio.pro
Subject: Re: SPL and Hearing - long
Date: 10 Oct 1992 22:39:38 GMT
Organization: University of California at Berkeley
NNTP-Posting-Host: boom.cs.berkeley.edu

In article <1992Sep16.225605.9803@guinness.idbsu.edu> Dave J <djensen@claven.idbsu.edu> writes:
>
>BTW, the rather innocuous term "hearing impairment" is defined as the inability
>to understand conversational speech in a quiet environment. That's pretty
>severe IMHO. The inability to understand speech, i.e. hearing impairment, does
>not begin until frequencies at and below 3000 Hz are fairly well attenuated.

Actually, this touches the tip of a very interesting iceberg in
hearing science.  People whose hearing damage, based on sinewave
tests, only start at frequencies well above 3K, can function in quiet
environments but often have serious troubles understanding speech in
the normal ambient noise of life (restaurants, city streets, ect). One
can't take analogies between the cochlea and Fourier analysis too far;
biological representations of sound are much more distributed than the
LED's on your spectrum analyzer ...
From: cullen@ac.dal.ca
Newsgroups: rec.audio.pro
Subject: Re: Carver????
Date: 13 Oct 92 15:58:57 -0300
Organization: Dalhousie University, Halifax, Nova Scotia, Canada

 I believe that the only way to use carver amps is to use ungodly 
gauge wire in the electrical system supplying them.

In other words, don't wire fifty feet from the panel with 14/2, 
and call it a fifteen amp circuit for carver amps. This is code use 
but the Carvers put a drain on the circuit during transients and cause a
voltage drop in the wire. 

I saw a show recently (Blue Rodeo) which was exclusively Carver.
The distro used 000 from disconnect to panel, and 8/4 swo from panel to
amp rack. The production company, BCB, was using a Clair S4-S2 rig and
there was no lack of bottom end.
						Murray
						Cullen@ac.dal.ca

Newsgroups: rec.audio.pro,rec.music.synth
From: cms2839@ultb.isc.rit.edu (a.stranger)
Subject: Re: AES Anyone??
Originator: cms2839@ultb
Organization: Minimalist Music for Hyperactive Children (MMHC)
Date: Sat, 10 Oct 1992 21:18:55 GMT

In article <1992Oct8.081136.22206@news.media.mit.edu> mbl@media.mit.edu (Marc LoCascio) writes:
>In article <1992Oct2.224808.18207@cmcl2.nyu.edu> galanter@nyu.edu (Philip Galanter) writes:
>>Any news from Lexicon on new effects?
>no new effects, though they did show a new 20-bit A/D converter that

				no new *boxes* , but they did announce
new software for the lex 300 . version 3.0 is said to add "split" and
"cascade" configurations which "permit versatile dual-processing modes."
it also adds five new algorithms , and includes "MIDI time code, the
ability to automate parameter glides through time code...and more."

-- 
       @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
       @       "Imagination keeps the shadows away  -  Xymox       @
       @~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~@
       @ a.stranger - CMS2839@ritvax.isc.rit.edu - PGP key on req. @
From: braunste@fjord.ATMOS.ColoState.Edu (lance the braunstein)
Newsgroups: rec.audio.pro
Subject: PAs
Date: 13 Oct 92 03:45:13 GMT
Organization: Colorado State University, Fort Collins, CO  80523

our band's been having trouble with vocals both live and during recording  
(we do everything ambiently).  can anyone recommend a moderately priced PA  
that can get pretty loud?

steam

PA, by the way, not referring to a prince albert.
Newsgroups: rec.audio.pro
From: jay@cmn19.Stanford.EDU (Jay Kadis)
Subject: Quality reinforcement speaker evaluations
Organization: DSO, Stanford University
Date: Fri, 9 Oct 92 16:55:42 GMT

We are contemplating a new quad (four speaker) sound system for our MIDI  
studio and for occasional electronic music concerts that are too small for  
our Meyer MSL3/650-R2 system.  What we're considering at the moment is:

Bag End TA-15
Ramsa WS-A200
JBL SR-4725
Meyer HD-1

(I think we'll be going without subs for these right now due to budget  
constraints, but we might be able to add them later.) Any reports of  
experiences with these speakers would be appreciated.  We are trying to  
arrange a "shoot-out" between these if we can get them together.  I'll  
post the results if/when it happens.  Also, if anyone has other  
suggestions, let's hear from you.

Jay Kadis
jay@ccrma.stanford.edu
From: YKWON@SLACVM.SLAC.STANFORD.EDU (415)
Newsgroups: rec.audio
Subject: Re: Hughes SRS experiences?
Date: 8 Oct 92 20:25:57 GMT
Organization: Stanford Linear Accelerator Center

Since you said you already have 4 speakers, why don't you just
buy a surround processor and go for surround sound?
-Youngjoon
From: smee@bristol.ac.uk (Paul Smee)
Newsgroups: rec.audio
Subject: Re: At what speed does a CD spin?
Date: 9 Oct 92 18:19:41 GMT
Reply-To: P.Smee@bristol.ac.uk (Paul Smee)
Organization: University of Bristol

In article <IepEVdm00WB75dcP5Q@andrew.cmu.edu> chinman+@CMU.EDU (Chinarut Ruangchotvit) writes:
>> Does anyone know at what speed a CD spins (in RPM's)?  My band is
>> pressing a CD.  The artwork on the CD will look like a vinyl record. And
>> the label will say ??? RPM.
>
>You have a slight problem considering a CD spins with constant linear
>velocity (CLV), not constant angular velocity (CAV).  I believe a CD
>begins spinning at about 500 RPMs gradually slows down to a minimum of
>200 RPMs.

Someone's already used that original idea.  Forget which CD it is,
think it might be 3 Mustaphas 3 or else one of our Grateful Dead ones.
Says on it, 'play at between 200-500 RPM'.

-- 
Paul Smee, Computing Service, University of Bristol, Bristol BS8 1UD, UK
 P.Smee@bristol.ac.uk - ..!uunet!uknet!bsmail!p.smee - Tel +44 272 303132
Newsgroups: rec.audio
From: tlode@nyx.cs.du.edu (trygve lode)
Subject: Re: optical vs. coax digital interconnects
Organization: Nyx, Public Access Unix @ U. of Denver Math/CS dept.
Date: Tue, 13 Oct 92 00:47:36 GMT

In article <ldhvk5INN7bp@appserv.Eng.Sun.COM> bender@oobleck.eng.sun.com writes:
>tlode@nyx.cs.du.edu (trygve lode) writes:
>: In article <ldfelaINN459@appserv.Eng.Sun.COM> bender@oobleck.eng.sun.com writes:
>: >I'm considering upgrading my audio system with a new CD player and external
>: >D/A, but I'm not sure if I should get a player/converter with optical or
>: >coax digital interconnects.  [...]
>: 
>: Now, did you want Toslink optical, AT&T glass fiber, or a proprietary
>: optical interface?  Unbalanced coax or balanced?
>
>I'm concerned that if I choose glass fiber, it might eventually crack (as
>glass does), so I think I'd prefer plastic-based fiber.  If I decide on
>coax, I assume balanced coax, so that my CD player and converter won't have
>problems with common-mode noise (hence, have good common-mode rejection).
>When I used to work on Prime computers, they used twinax, i.e. two center
>conductors wrapped in a braided shield, for their network connections.  If I
>decide on balanced coax, I would rather twinax cable than two seperate coax
>cables.

Just a few more comments--note that Toslink and AT&T glass fiber are two
entirely different transmission schemes, not just a difference in cable
materials.  (I believe it's pretty much universally accepted that Toslink
is considerably inferior to coax while AT&T is usually slightly better 
than coax.)

Incidentally, if you are going to work with coax, unlike unbalanced
interconnects and speaker wires, impedance-matching is important; I've
occasionally tried connecting D/A converters and transports with 
connectors that weren't 75 Ohms with fairly poor results.  (BTW, I
use twinax for most of my line-level interconnects, myself, but it
seems much easier to get ahold of 50 Ohm twinax than 75 Ohm twinax.)

Trygve
From: MATGBB@LURE.LATROBE.EDU.AU (BYRNES,Graham)
Newsgroups: rec.audio
Subject: Re: Science versus TechnoBabble and Golden Ears
Date: 14 Oct 92 08:01:39 GMT
Organization: La Trobe University
X-News-Reader: VMS NEWS 1.24

In <183865@pyramid.pyramid.com> lstowell@pyrnova.mis.pyramid.com writes:

> In article <1190775@hpnmdla.sr.hp.com> kurts@hpnmdla.sr.hp.com (Kurt Strain) writes:
> >
> >I know your understanding of psychology and perception leaves more doubt
> >about what your senses perceive than what science can predict.  A good
> >example is the flight of the bumblebee.  To an untrained observer he 
> >might actually think the bee flies, but the scientific proof  from well
> >known aeronautic principles proves flawlessly that it in fact does not.
>    
>    I presume you can produce the "learned article" which makes such
>    claims?  Or did you just hear this very popular (and untrue)
>    urban myth from your local hi-fi dealer.
An amusing sidelight on this: I once attended an international conference
on general relativity in Stockholm. Now quantum gravity, cosmology etc
attracts more loony fringe types than even hi-end audio, so while the
conference people were pretty serious types, there was an amazing sideshow
of seers, mystics and others who knew the answer to life, the universe 
and etc, or could prove Einstein had it wrong etc etc. From one of these
people I heard the following theory:

According to science, bumble-bee can't fly. Hence science is missing something.
(So far so good: the science he refered to was a linear, non-turbulent
approx. which effectively ignored that the bee can flap its wings...)
This something might be the psychic energy of the bee, which helps its
wings to keep it in the air (well, it could be). Hence, in a more psychically
developed organism (umm, thats us, folks) this might be enough to get off the
ground even without the wings, in other words that people can levitate if they
meditate well enough.

Well, it could be true. Just because I can't do it, doesn't mean....

Of course, no dispassionate, sober observer has ever seen it happen, even
though quite a few Transcendental Meditators say they have done it.
Now, should the NSF (or your local equiv.) fund lot of research in this area?
Should scientists lie awake at night trying to understand human levitation?

Now with your legs crossed, eyes closed and mind open, meditate on your
answers to these questions and expensive cables....
Graham B
Xref: sparky rec.audio:13525 rec.video:12149 misc.consumers:17619
From: wtc@cbnewsl.cb.att.com (william.cox)
Newsgroups: rec.audio,rec.video,misc.consumers
Subject: Re: Problems dealing with this mail order outfit
Summary: short Sony Walkman warranties and service contracts
Date: 8 Oct 92 23:22:24 GMT
Distribution: usa
Organization: AT&T UNIX System Laboratories

In article <1992Oct8.164348.22997@col.hp.com> cab@col.hp.com (Chris Best) writes:
>>    One of the items I bought was a Sony walkman for $99.
>>    ... I got the extended warranty (maybe $12 for
>>    two years).  
>> 
>>    Sure enough, 10 months later, I started having a serious
>>    problem with one of the connections (cackling noise).
>
>No, there THEY go.  You spent $12 on nothing, since it
>broke while under SONY's warranty, and not under the
>purchased one.  You would have been given a new one
>even without the extended warranty, since it died 
>before the extended warranty went into effect.

Every time I've checked warranties on walkthings, it's turned out that
the "standard warranty" is 90 days labor, 1 year parts.  Care to guess
what the labor charge would be for that repair?

Last time I looked, I think that only the JVC CD portables had a 1 year
parts and LABOR warranty.  I'd appreciate hearing of ANY portable
CD players with > 90/1yr warranty, as I'll be in the market soon.

>somehow selling SONY equipment with less than a year
>of mfg. warranty, the same opinion holds (unless SONY
>doesn't normally include it, in which case SONY is
>the scum, and I am ranting about nothing).

See note on SONY warranties above.  Draw your own conclusions.
In the walkthing market, there isn't much competition, so they've
been getting away with it.  In other markets, they've relaxed and gone
to 1 year P&Labor.

On a related topic, I bought an Epson laser printer for my sister at Wards
(don't laugh; in Orange County they were cheaper than the other nearby
electronics/computer 'discount' stores like Circuit City).  It came
witha 2 year warranty from Epson.  Wards tried to sell me a a TWO YEAR
service contract for something like $100.  When I pointed out that the
factory warranty was 2 years, and that they'd never have to pay for parts
and labor, they said "but we'll clean it for you annually."  I didn't buy.

	bill

	bill@usl.com
	William Cox
	UNIX System Laboratories
	Summit NJ 07901
From: bower@pecan.cns.udel.edu (Tyson Bower)
Newsgroups: rec.audio
Subject: Re: Interesting Speaker Question (to me, at least)
Keywords: Interference
Date: 11 Oct 92 18:59:45 GMT
Organization: University of Delaware, Newark

Bruce asks:

So how about it gentlemen - why is this effect not the kiss of death for
detailed, yet stable imaging?

Ty replies:

"Well, I may be an idiot, and if so, feel free to tell me.  However,
 I would imagine that this entire interference effect is what is 
 partly resposible for creating the stereo image.  Our brains have
 learned to hear certain constructive/destructive interference effects,
 and associate these patterns with what we call 'the stereo image'."
Newsgroups: rec.audio