resistor and polyswitch
Comments
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That's a .047 uF 5% tolerance cap in series with a 6.8 Ohm 5% tolerance resistor. The intended purpose would be to attenuate or to pass very high frequencies depending on where that is in the circuit.
Greg'65 427 Shelby Cobra
'72 Triumph TR-6
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'88 Polk SDA SRS 1.2, with upgraded XO caps and Erse SDA inductors
'86 Polk SDA CRS+
'84 Polk Monitor 10A (Peerless tweeters)
'05 HSU VTF-3 Sub (Original OEM)
'20 HSU VTF-3 Sub (three more, 100% cloned)
'93 Carver TFM-35
'88 Carver M-1.0t
'88 Adcom GFT-555
'88 Adcom GFP-555
'88 Adcom GFA-555 (upgraded/restored)
'88 Adcom GFA-555 (a second one upgraded/restored)
'05 Onkyo DV-555 media
'89 Fosgate 360 Digital Space Matrix
'89 Fosgate 360 Digital Space Matrix, internal surround amp bridged to drive only a center channel
'91 Kenwood Basic M1D Amp
'89 Pioneer Laser Disc media
'89 Sony SuperBeta HiFi media
One PGA2310 based custom built remote volume control
Four Polk T-15's
Four Polk TSi-200's
Four Polk TSi-100's
Two Polk CS-10's -
That's a .047 uF 5% tolerance cap in series with a 6.8 Ohm 5% tolerance resistor. The intended purpose would be to attenuate or to pass very high frequencies depending on where that is in the circuit.
Greg
I think the HiFi shop may have done the tweak because they didn't like the sound. It is a resistor, and a cap across the main terminals(positive to negative).Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
Thanks
Ben -
This may be one of Polk's famous, yet undocumented, "transition" models. Polk's historian and customer service manager, Ken Swauger, may be able to solve this mystery. Send him an email and reference this thread. Ken's email address is KSwauger@polkaudio.com.Proud and loyal citizen of the Digital Domain and Solid State Country!
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In interesting tid-bit. I have a pair of Monitor 5A's with Peerless tweeters that I just bought from the original owner. He said that they are all original (except for a mod to the stands) and I believe him. My XO's are a little different from ANWKLO's in that his have a 6.2 ohm resistor in series with the tweeter and mine has a 2.5 ohm. I don't know if mine have the RC network in the cup. Photos of ANWKLO's XO and mine can be found in this link:
http://www.polkaudio.com/forums/showthread.php?t=83521
His were built in 1979 (stamped on MW) and mine in 1983. The resistor values seem like a significant change. Could it be due to different Peerless tweeters? Mine are the USA version.Stan
Main 2ch:
Polk LSi15 (DB840 upgrade), Parasound: P/LD-1100, HCA-1000A; Denon: DVD-2910, DRM-800A; Benchmark DAC1, Monster HTS3600-MKII, Grado SR-225i; Technics SL-J2, Parasound PPH-100.
HT:
Marantz SR7010, Polk: RTA11TL (RDO198-1, XO and Damping Upgrades), S4, CS250, PSW110 , Marantz UD5005, Pioneer PL-530, Panasonic TC-P42S60
Other stuff:
Denon: DRA-835R, AVR-888, DCD-660, DRM-700A, DRR-780; Polk: S8, Monitor 5A, 5B, TSi100, RM7, PSW10 (DXi104 upgrade); Pioneer: CT-6R; Onkyo CP-1046F; Ortofon OM5E, Marantz: PM5004, CD5004, CDR-615; Parasound C/PT-600, HCA-800ii, Sony CDP-650ESD, Technics SA 5070, B&W DM601 -
I check my Monitor 5A's and they do not have the extra RC network. I did find it interesting that the XO cups were signed by, I presume, the builder. It is a good sign of pride in their work.Stan
Main 2ch:
Polk LSi15 (DB840 upgrade), Parasound: P/LD-1100, HCA-1000A; Denon: DVD-2910, DRM-800A; Benchmark DAC1, Monster HTS3600-MKII, Grado SR-225i; Technics SL-J2, Parasound PPH-100.
HT:
Marantz SR7010, Polk: RTA11TL (RDO198-1, XO and Damping Upgrades), S4, CS250, PSW110 , Marantz UD5005, Pioneer PL-530, Panasonic TC-P42S60
Other stuff:
Denon: DRA-835R, AVR-888, DCD-660, DRM-700A, DRR-780; Polk: S8, Monitor 5A, 5B, TSi100, RM7, PSW10 (DXi104 upgrade); Pioneer: CT-6R; Onkyo CP-1046F; Ortofon OM5E, Marantz: PM5004, CD5004, CDR-615; Parasound C/PT-600, HCA-800ii, Sony CDP-650ESD, Technics SA 5070, B&W DM601 -
That's a resistor not commonly seen on x-overs. And that looks like a poly cap. That setup may have been added to eat up power going to the tweeter or act in place if that fuse blows and keep the power limited.
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It's a very common crossover resistor, as common as it gets. Those caps are electrolytic.Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk
