126mhz Posted December 10, 2004 Share Posted December 10, 2004 Hello All: I've had a pair of Klipsch KP 301's in my basement and I've loved them, (even though they're a bit on the homely side) for all types of music I enjoy. I just happened upon my deal of the decade in that a friend just lined me up with an old fella who bought a pair of La Scalas in the mid eightys. Even though it sounds too good to be true I recieved them in their original boxes and they look mint in every way. I'm astounded how good they could make birch plywood look. The number and dating code are as follows: 8663323 and 8663324 and they both have the letters "LS-BR". Could someone date they for me? Secondly, they both have AL crossovers and after I cleaned them up I hooked they up to a Naim 50 wpc solid state power amp and they both have the slightest little high frequescy "Hum" to them. They sound wonderful, but I'd like to track down the cause of the "Hum." I purchased a new set of AA crossovers from a nice fella on this site from Arkansas and I'm wondering if the "Hum" will go away with the new crossovers installed. Lastly I have an orogonal Rega Planet CD player that is vuite well isolated with spikes, ect. ect. ect.. Recently it had begun to skip with I apply even a moderate amount of bass to ay one of the three systems in my home. I love the player but the skip is too much at this point. Does anyone know if this could be repaired/serviced without the coast being more than the thing is worth? Thank you in advance, Bill Woodward Portland, OR. Quote Link to comment Share on other sites More sharing options...
cjgeraci Posted December 10, 2004 Share Posted December 10, 2004 Congrats on your LaScalas. I think you are missing one digit from the full serial number (probably in between the two sixes). I believe your LaScalas were assembled in 1986. Sorry to hear about your Rega Planet. I feel your pain. Had a similar thing happen with mine. Never did end up getting it repaired - just moved it to my office where music is played much quieter. Unfortunately, I think the Regas were way too prone to skipping-even when working properly - when the volume and/or bass gets loud. Nice player but poor design in that one respect. The following is from one of Danny's old posts (DbFlash): "KLIPSCH S/N FORMATS DATES DISCRIPTION EXAMPLE 1946-1947 ### (001) ending #021 1948-1961 #### (0121) starting #0121 Klipschorns of this vintage had the s/n hammer stamped into the tailboard, woofer access door or inside the woofer chamber. 1962-1983 ##letter#### (20Y1234) 1984-1989(?) YY WW #### (89281234) 1990-1997(?) DOY Y2Y1 #### (135791234) 1998-2000 YY WW #### (00281234) 1962-1983 Letter format A=62 F=67 K=72 R=77 X=82 B=63 G=68 L=73 S=78 Y=83 C=64 H=69 M=74 T=79 D=65 I=70 N=75 U=80 E=66 J=71 P=76 W=81 1946-1961 dates can only be found in log book (eng. Library) DOY= day of the year YY=year (i.e. 99,00) Y2Y1=2nd digit of year, 1st digit of year WW=week of the year Date code on drivers (1994) Example 9429 = 1994, 29th week of the year / YYWW" Carl. Quote Link to comment Share on other sites More sharing options...
Audio Flynn Posted December 11, 2004 Share Posted December 11, 2004 Secondly, they both have AL crossovers and after I cleaned them up I hooked they up to a Naim 50 wpc solid state power amp and they both have the slightest little high frequescy "Hum" to them. They sound wonderful, but I'd like to track down the cause of the "Hum." I purchased a new set of AA crossovers from a nice fella on this site from Arkansas and I'm wondering if the "Hum" will go away with the new crossovers installed. => Ah hum (HEHE) when you have a highly detailed and efficient transducer you are going to hear some things you would not normally hear. Hum could be... -household appliances -amp -source software If it is in the crosover that is a new root cause to me. +++++++++++++++++++++ Lastly I have an orogonal Rega Planet CD player that is vuite well isolated with spikes, ect. ect. ect.. Recently it had begun to skip with I apply even a moderate amount of bass to ay one of the three systems in my home. I love the player but the skip is too much at this point. Does anyone know if this could be repaired/serviced without the coast being more than the thing is worth? => Lasers get tired. It may be able to be realigned. New laser installed from a reputabel tech could go $ 150-300 depending on part availability. Quote Link to comment Share on other sites More sharing options...
JohnA Posted December 11, 2004 Share Posted December 11, 2004 Ls-BR is La Scala, Birch, Raw or unfinished. The build date is 1986. The speaker and crossover cannot cause a hum or squeal except in the outside chance you have an extreme RFI problem. The efficiency of La Scalas will bring out electronic problems where nothing else would. Quote Link to comment Share on other sites More sharing options...
LarryC Posted December 11, 2004 Share Posted December 11, 2004 ---------------- The speaker and crossover cannot cause a hum or squeal except in the outside chance you have an extreme RFI problem. ---------------- Or a strong EMI problem, as in an electrical service panel nearby, such as on the other side of the wall from one of the speakers, like I have. Quote Link to comment Share on other sites More sharing options...
mike stehr Posted December 11, 2004 Share Posted December 11, 2004 ---------------- On 12/11/2004 2:20:34 PM LarryC wrote: ---------------- The speaker and crossover cannot cause a hum or squeal except in the outside chance you have an extreme RFI problem. ---------------- Or a strong EMI problem, as in an electrical service panel nearby, such as on the other side of the wall from one of the speakers, like I have. ---------------- Maybe put some sort metal sheet behind the service panel on the same side of the wall of the service panel. If feasible, it may kill the stray EMI. I dunno... Kinda the same idea like using a Mu shield on transformer to kill the outer magnetic waves from interfering with other parts. The only squeals I have heard are oscillating HF in amplifiers. Or LF motorboating. But that's off-topic. Quote Link to comment Share on other sites More sharing options...
LarryC Posted December 11, 2004 Share Posted December 11, 2004 ---------------- Maybe put some sort metal sheet behind the service panel on the same side of the wall of the service panel. If feasible, it may kill the stray EMI. I dunno... Kinda the same idea like using a Mu shield on transformer to kill the outer magnetic waves from interfering with other parts. ---------------- I appreciate the thought, thanks. Someone suggested I put one IN the wall next to the K's, which sounded too messy to do. I didn't mean to imply that my problem is that bad, and it's now down to a pretty low level that I can live with. I was thinking of others who have posted with worse problems than mine, and it took a while to figure them out. Larry Quote Link to comment Share on other sites More sharing options...
lynnm Posted December 11, 2004 Share Posted December 11, 2004 FWIW I have a pair of Khorns driven by an Antique Sound Lab AQ1003DT.Prior to buying my Khorns I was using a pair of KLF30. The amp was virtually silent when connected to the 30s but I get a low level buzz from it when using my Khorns. The 30s are specified as 102db/1watt/1 meter and the Khorns are specified as 104db/watt/1 meter. Quote Link to comment Share on other sites More sharing options...
edwinr Posted December 12, 2004 Share Posted December 12, 2004 I love Rega's turntables, but they were/are less succesful with their amps and cd players. Rega is the only company I know that can make alloy casework look like cheap plastic. Quote Link to comment Share on other sites More sharing options...
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