SDA CRS+ With an External Crossover Twist.... :-)
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Dennis Gardner wrote: »Just a personal thought......I might try to relocate that long resistor along the back of the board to clean up the look. I have never liked how those look cramped or wedged onto boards at odd angles.
I agree, that's the only thing I don't like about the Dueland Resistors, but I will probably just leave it, it's been that way for a few years now..
Here ya go Larry, The Red X's (with J5 in place) all connect to pad B and the Red Y's connect to pad G.
Something I plan on doing to my CRS+'s is strip the cabs and take them to a body shop and have them painted a gloss black (Piano Black, no orange peel etc..) then (Hint, Hint) replace that piece off molding below the speaker grills with brushed aluminum of the same shape. If you decide to do the aluminum thing please let me know as I'm having a hard time finding someone who will do this without charging me an arm & leg plus my first born.“The two most important days in your life are the day you are born and the day you find out why.” ~ Mark Twain -
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My binding post plates as well as my Neutrik plates..
12 ga #4 Stainless with 3/8 thick delrin on the back side.. -
These Neutrik's are for my Dreadnought, I just put them in to give you an idea.. The Neutrik's for these will be here Monday..
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Those look nice. Is it a must to use non-magnetic alloys when making the custom electronic/crossover housings?Don't take experimental gene therapies from known eugenicists.
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I have wondered the same thing, but I do see where it makes sense in doing so, but at the same time, most all amps, pre amps, CD players, blue ray players etc. have steel housings..
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Looking good Larry.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 -
I've had the idea to build external crossovers for my office speakers for a while now. One of the reasons being the components I want to use would take up way too much internal volume. I recently sat down to design the box and would love to have them made from aluminum, but may end up making them from MDF. Either way I think it's a good idea that they be non-magnetic.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 -
I had some spare 304ss, but held off making my crossover adapters, because machining it or a grind/polish returns it back to its magnetic state. I need to adapt the Erse inductors and will ask how they need to be orientated in my thread when they show up.Don't take experimental gene therapies from known eugenicists.
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Man that is some beautiful work! Can't wait for the updates!VA HT HK AVR20II, Sony S9000ES CD/DVD/SACD, Polk Audio RC80i / Polk Audio CSi3, 60" Panasonic Plasma, Nordost / Signal Cable A2 / Wireworld / Pangea / Magic Power
VA 2 Channel Focal Electra 926 speakers, Pass Labs X150.5 Amp, Eastern Electric MiniMax Preamp (Tutay mods), Eastern Electric Minimax CDP (Scott Nixon mods), Music Hall mmf 5.1 Turntable, Parks Audio Budgie Phono Pre , Audioengine B1 streamer, MIT S3 IC's / MIT Shotgun S3 Speaker Cables / PS Audio power cables
Noggin Schiit Valhalla, Pangea, Phillips Fidelio X1, Polk UF8000
Polk SDA1c modded
Polk CRS+ 4.1TL modded (need veneer)
Polk SDA2BTL (fully modded)
A/L 1000VA Dreadnought Canare 4s11 SDA cable
SACD Marantz DV8300
Sony S9000ES CD/DVD/SACD
Yamaha YP-D6
Soundcraftsmen PCR800
Audible Illusions L1 Preamp
Vincent MFA based Cocci Tube Preamp
Pho-700 Phono Pre
Signal Cable Silver Resolution IC's -
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Dang Larry everything looks great. Cant wait to see finished results. Great work..
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Randy/Maine -
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I am loving how the internal wiring harness is looking..
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So I made a prototype crossover case that will mount to the stands, wanted to play with the layout with the 16mh inductor, what are your thoughts, back wall or side wall??
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Tomorrow I will be making this out of .090 aluminum with a .125 aluminum top..
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You'll want it away from the steel frame, and 90 degree opposite from the board inductors on either planeHome Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
dhsspeakerservice.com/ -
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Those are also very nice. Will you tig the lower portion AL?Don't take experimental gene therapies from known eugenicists.
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Those are also very nice. Will you tig the lower portion AL?
Yes sir, already done, and ready for the powder coater..
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Is any of it going to be see through? Might be cool to be able to see inside and have it light up or not to show off your work..."....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
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EndersShadow wrote: »Is any of it going to be see through? Might be cool to be able to see inside and have it light up or not to show off your work...
I thought about it, but no it will be all be black..
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3/8 thick delrin will be the base for the crossovers..
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Too sexy!!Pio Elete Pro 520
Panamax 5400-EX
Sunfire TGP 5
Micro Seiki DD-40 - Lyra-Dorian and Denon DL-160
PS Audio GCPH phono pre
Sunfire CG 200 X 5
Sunfire CG Sig 405 X 5
OPPO BDP-83 SE
SDA SRS 1.2TL Sonicaps and Mills
Ctr CS1000p
Sur - FX1000 x 4
SUB - SVS PB2-Plus
Workkout room:
Sony Bravia XBR- 32-Inch 1080p
Onkyo TX-DS898
GFA 555
Yamaha DVD-S1800BL/SACD
Ft - SDA 1C
Not being used:
RTi 38's -4
RT55i's - 2
RT25i's -2, using other 2 in shop
LSI 15's
CSi40
PSW 404 -
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I've had the idea to build external crossovers for my office speakers for a while now. One of the reasons being the components I want to use would take up way too much internal volume. I recently sat down to design the box and would love to have them made from aluminum, but may end up making them from MDF. Either way I think it's a good idea that they be non-magnetic.
Jesse, I missed this, can you send me a drawing??
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Larry, I'm still in the planning stages, but thank you!
I'm being lazy......did you color the Neutrik gaskets or do they sell them that way?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 -
They sell them that way..
White is the tweeter.
Red is the Drivers.. -
Ah, cool!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
