[Elecraft] OT: Bose QC Mic Modification

[Joe Subich, W4TV]

> 250 is pretty cheap.  I paid more than that when you add up 
> what I paid for the ER4P's and the molds separately.  Yet 
> still in pretty much all of the monitors I've listened to the 
> Etymotics are about as antiseptic as I've found. 

The performance ratings of the ER6P is only slightly lower 
than the ER4P, isolation is similar and they can be found 
for $80 at many places on the web.  If you want maximum sound 
isolation, choose the ER6i (it has the three flange tips vs. 
2 flange tips with the ER4P and ER6P).  

The only problem with the ER4/ER6 is there is no place for 
the (headset) mic <G>. 

73, 

   ... Joe, W4TV 
 



> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Brett Howard
> Sent: Sunday, March 23, 2008 2:38 AM
> To: AE4CW
> Cc: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] OT: Bose QC Mic Modification
> 
> 
> 250 is pretty cheap.  I paid more than that when you add up 
> what I paid for the ER4P's and the molds separately.  Yet 
> still in pretty much all of the monitors I've listened to the 
> Etymotics are about as antiseptic as I've found.  I'm a big 
> fan of a very clean very flat response and the ety's are 
> quite amazing at producing that.  Many feel that if there 
> isn't a 3 to 6 (or sometimes more) hump in the bottom end 
> they aren't bassy enough but to each his own.  
> 
> Anyway one other comment is that if you go the route of 
> custom ear molds you won't get as much isolation as you would 
> with the stock ety ear pieces.  I've seen this in the numbers 
> but I've also experienced it. I'm not so sure that the foam 
> molds produce the isolation that they claim but I do attest 
> to the fact that the 3 flange silicon tips do a better job 
> than custom molds.  Etymotic claims 35dB of isolation with 
> the silicon tips and 42dB of isolation from outside noise 
> with the foam tips.  Wish anyone luck pulling that off with 
> active noise cancellation!  
> 
> 
> On Sat, 2008-03-22 at 21:14 -0700, AE4CW wrote:
> > I second Brett's comments re the use of custom fitted 
> in-ear monitors
> > (IEMs)
> > for great isolation and sonic clarity.  Properly fitted, 
> they are very 
> > comfortable, provide about 25 dB of external isolation and you hear 
> > exactly what your receiver is producing.
> > 
> > I do live sound monitor engineering on a weekly basis and 
> have used a 
> > variety of low, mid and high-end IEMs ($60-$500+) over the 
> years.  The 
> > best price/performance I've found so far is the Live Wires 
> IEMs.  They 
> > are not
> > cheap ($249) but for the money (IMHO) there is nothing better.  You
> > can
> > check them out here:
> > http://www.livewiresforyou.com/index.php Live Wires Site 
> 
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at mailman.qth.net
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft    
> 
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com