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Thread: CSiA4 Mod

  1. #1

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    Default CSiA4 Mod

    I've decided after switching from CSi5 to the A4 due to space restrictions, that I really miss my 5. Since the 5 can't be used, I'm going to do a cap mod. I'm limited to time since my new job which is fine because it only has 3:

    .47uF
    10uF
    27uF
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  2. #2

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    Well, I just order some Dayton Precision 1% Metallized Polypropylene Capacitors. I'll keep you all updated when they get installed.
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  3. #3

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    Did you order enough for me?

  4. #4

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    Quote Originally Posted by leroyjr1 View Post
    Did you order enough for me?
    lol....You should have told me earlier ;)
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  5. #5

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    Keep us updated. Sounds like a nice cheap mod that should make a big difference.

  6. #6

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    Just picked up some AQ 14awg for the runs inside.

    FYI - Any of you in the Milwaukee area might want to visit Flanner's. They have some Type8 20ft run for $100. Also have Type4 20 ft run for $40. I almost pulled the trigger on some type8's
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  7. #7

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    Quote Originally Posted by curved View Post
    Just picked up some AQ 14awg for the runs inside.

    FYI - Any of you in the Milwaukee area might want to visit Flanner's. They have some Type8 20ft run for $100. Also have Type4 20 ft run for $40. I almost pulled the trigger on some type8's

    Dang curve why you tell me that. On my way now.

  8. #8
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    I'll be interested to see how it works out for you. To my knowledge, the only modern Polks that are being modded are the LSis, so I'm excited to here your review. You could be opening up a whole can of worms... :D

  9. #9

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    OMG!! That's all I can say. Outstanding value mod here.

    First 5 minutes of listening:
    Much much bigger sound!! Voices seem to be much clearer. The other thing I noticed was the center gain was a bit too much - had to back off on it a little. Much better match for the RTi8's. Before it seemed way too thin compared to the CSi5.

    I'll give you all more feedback when they burn in a bit.
    Attached Thumbnails Attached Thumbnails Click image for larger version

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    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  10. #10

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    Time to do the 8's next. Was it fairly easy to do?

  11. #11
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    Did you swap out the resistors too?

  12. #12

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    Quote Originally Posted by leroyjr1 View Post
    Time to do the 8's next. Was it fairly easy to do?
    It depends who you ask.....:D

    It really wasn't bad.
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  13. #13

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    Quote Originally Posted by zingo View Post
    Did you swap out the resistors too?
    No....do you think it would be worth it?
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  14. #14
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    Yep. :)

  15. #15

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    I'll be ordering them when I mod my 8's since they are CHEAP!! I also might replace that dayton .47 with something higher quality - Sonic Cap, Aeon, etc.
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  16. #16

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    Quote Originally Posted by curved View Post
    OMG!! That's all I can say. Outstanding value mod here.

    First 5 minutes of listening:
    Much much bigger sound!! Voices seem to be much clearer. The other thing I noticed was the center gain was a bit too much - had to back off on it a little. Much better match for the RTi8's. Before it seemed way too thin compared to the CSi5.

    I'll give you all more feedback when they burn in a bit.
    I may sound stupid:o When you say you mod the caps do you replace them exactly with the same values of capacitance and voltage or do you consider any other calculations please clarify.

  17. #17

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    Same capacitance. Voltage will be higher with aftermarket but don't worry about that.
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  18. #18

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    Update...I just got the 545II which will be powering the center. I'll let you know how the center sounds with some good clean power.
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  19. #19

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    I can't find a schematic, but the .47uf cap may not be needed at all. A value that small is generally used for a bypass cap. If you have the time and energy, you should try it with and without the .47uf in place. And while you're in there, I would also recommend replacing the resistors with Mills.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

  20. #20

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    I think I will try taking that out...

    Zingo also suggested that so I think I'll swap those out soon....especially since they're so cheap.
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  21. #21

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    Quote Originally Posted by curved View Post
    Just picked up some AQ 14awg for the runs inside.

    FYI - Any of you in the Milwaukee area might want to visit Flanner's. They have some Type8 20ft run for $100. Also have Type4 20 ft run for $40. I almost pulled the trigger on some type8's
    is that deal at Flanners still going on?" would anyone be interested in helping me out by picking by the type 4s and shipping....pretty please:)

  22. #22

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    Quote Originally Posted by acsubie View Post
    is that deal at Flanners still going on?" would anyone be interested in helping me out by picking by the type 4s and shipping....pretty please:)

    I'll be out that way this weekend I'll check for you.

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    Quote Originally Posted by leroyjr1 View Post
    I'll be out that way this weekend I'll check for you.
    you are the man..def. keep me posted

  24. #24

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    Quote Originally Posted by acsubie View Post
    you are the man..def. keep me posted
    The ones they had there were used. They had both the type 4 and type 8 in twenty feet. I thought they were going to be new for that price on sale. If you want me to get you the used/demo pair let me know.

  25. #25

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    Curved, I'm a novice in this. If you have some time, do u mind sharing a step by step direction, including the parts that I need to buy? Appreciate your help..

  26. #26

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    Hooked up the 545 to it and it sounds AMAZING!! Bass is 10x better now!! It just doesn't seem as bright now either. Next mod will be resistors.....I'll post some more pics and give a better write up when I do the resistor mod. ;)
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  27. #27

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    **UPDATE**

    Ordered the following:
    Sonic Cap .22uF (2 in each RTi8) and .47uF (replacing in A4) caps.
    All Mills resistors
    Dayton Caps for the rest of the 8's to match the A4

    :D
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  28. #28

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    Quote Originally Posted by vijayl View Post
    Curved, I'm a novice in this. If you have some time, do u mind sharing a step by step direction, including the parts that I need to buy? Appreciate your help..
    x2

    I would like to try some mods on my RTi 10's. Does anyone knows what could be upgrated?
    HT:
    Projector - JVC HD100, 100" Fixed Screen, A/V Receiver - Pioneer Elite VSX-92TXH, Power Conditioner - Panamax M5300-EX, BluRay - Sony PS3 Looking for a gently used Oppo BD95, Speakers - RTiA9's, CSiA6, FXi A4, Sub - 12" M&K VX-1250

    Living Room:
    TV - Kuro Elite PRO-111FD, Fronts.Rti10's (not connected yet), Media source, Logitech Revue

    *Need to fix a used ADCOM GFA-555. Do you know where to have it services in Texas (Houston Area)?

  29. #29

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    Update:

    Replaced the .47 Dayton with a .47 Sonic Cap. See the SIZE difference!!! I also replaced the resistors with Mills resistors. Haven't had much time to evaluate it, but it's an improvement already. :D
    Attached Images  
    Living Room:.................... Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11

    **Dayton and Sonicap Caps with Mills Resistors**

  30. #30

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    Yes, it's been two years... how is your CSIA4 doing? :)

    i'm looking to get that speaker and mod it

    or should i just go ahead with CSIA6? since the mod cost of materials are probably going to be pricey?

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