SW-120 Passive Radiators (single or pair)
inspiredsports
Posts: 5,501
Pair of SW-120 Passive Radiators
I have an original matched pair of SW-120 Passive Radiators I from SDA-1B's.
12" SW-120 Passives were originally used in SDA-1, SDA-1A, SDA-1B, SDA-1C and SDA-2.
Polk dates on the backs of the passives are 3/24/87 and 3/25/87.
(They will work in an SDA-2A or SDA-2B in a pinch, but were NOT RECOMMENDED for these two models (the 2A and 2B use the SW-121 which is more flexible). The SW-120 has an extra circular layer of dense foam laminated to the surface making it stiffer, and it changes the bass characteristics if used in the wrong speaker. I experimented with these in my SDA-2B's just to see what would happen. The Bass was tauter and punchier, but not as deep (which makes sense as the SW-120 radiating surface is stiffer/less flexible due to the extra layer of material laminated onto it).
$30 each or $55 for the pair delivered to your lower 48 address if paid using PayPal "Personal" tab.
Note: the brown gasket on the backs (second image) is a thin flattened strip of brown Mortite.
I have an original matched pair of SW-120 Passive Radiators I from SDA-1B's.
12" SW-120 Passives were originally used in SDA-1, SDA-1A, SDA-1B, SDA-1C and SDA-2.
Polk dates on the backs of the passives are 3/24/87 and 3/25/87.
(They will work in an SDA-2A or SDA-2B in a pinch, but were NOT RECOMMENDED for these two models (the 2A and 2B use the SW-121 which is more flexible). The SW-120 has an extra circular layer of dense foam laminated to the surface making it stiffer, and it changes the bass characteristics if used in the wrong speaker. I experimented with these in my SDA-2B's just to see what would happen. The Bass was tauter and punchier, but not as deep (which makes sense as the SW-120 radiating surface is stiffer/less flexible due to the extra layer of material laminated onto it).
$30 each or $55 for the pair delivered to your lower 48 address if paid using PayPal "Personal" tab.
Note: the brown gasket on the backs (second image) is a thin flattened strip of brown Mortite.
VTL ST50 w/mods / RCA6L6GC / TlfnknECC801S
Conrad Johnson PV-5 w/mods
TT Conrad Johnson Sonographe SG3 Oak / Sumiko LMT / Grado Woodbody Platinum / Sumiko PIB2 / The Clamp
Musical Fidelity A1 CDPro/ Bada DD-22 Tube CDP / Conrad Johnson SD-22 CDP
Tuners w/mods Kenwood KT5020 / Fisher KM60
MF x-DAC V8, HAInfo NG27
Herbies Ti-9 / Vibrapods / MIT Shotgun AC1 IEC's / MIT Shotgun 2 IC's / MIT Shotgun 2 Speaker Cables
PS Audio Cryo / PowerPort Premium Outlets / Exact Power EP15A Conditioner
Walnut SDA 2B TL /Oak SDA SRS II TL (Sonicaps/Mills/Cardas/Custom SDA ICs / Dynamat Extreme / Larry's Rings/ FSB-2 Spikes
NAD SS rigs w/mods
GIK panels
Conrad Johnson PV-5 w/mods
TT Conrad Johnson Sonographe SG3 Oak / Sumiko LMT / Grado Woodbody Platinum / Sumiko PIB2 / The Clamp
Musical Fidelity A1 CDPro/ Bada DD-22 Tube CDP / Conrad Johnson SD-22 CDP
Tuners w/mods Kenwood KT5020 / Fisher KM60
MF x-DAC V8, HAInfo NG27
Herbies Ti-9 / Vibrapods / MIT Shotgun AC1 IEC's / MIT Shotgun 2 IC's / MIT Shotgun 2 Speaker Cables
PS Audio Cryo / PowerPort Premium Outlets / Exact Power EP15A Conditioner
Walnut SDA 2B TL /Oak SDA SRS II TL (Sonicaps/Mills/Cardas/Custom SDA ICs / Dynamat Extreme / Larry's Rings/ FSB-2 Spikes
NAD SS rigs w/mods
GIK panels
Post edited by inspiredsports on
Comments
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My SDA 1C's came with weights on the back of them either way it's nice to have a set of spares..Polk Audio SDA 2.3tl Fully Hot Rodded. 😎
SVS SB16 X2
Cary SLP-05/Ultimate Upgrade.
Cary SA-500.1 ES Amps
Cary DMS 800PV Network
OPPO UDP 205/ModWright Modification
VPI Scout TT / Dynavector 20x2
Jolida JD9 Fully Modified
VPI MW-1 Cyclone RCM
MIT Shotgun 3 cables throughout / Except TT, and PC’s -
My SDA 1C's came with weights on the back of them either way it's nice to have a set of spares..
Well, "PM and Get 'em!" (but note this particular set does not have any indication of ever having weights attached).VTL ST50 w/mods / RCA6L6GC / TlfnknECC801S
Conrad Johnson PV-5 w/mods
TT Conrad Johnson Sonographe SG3 Oak / Sumiko LMT / Grado Woodbody Platinum / Sumiko PIB2 / The Clamp
Musical Fidelity A1 CDPro/ Bada DD-22 Tube CDP / Conrad Johnson SD-22 CDP
Tuners w/mods Kenwood KT5020 / Fisher KM60
MF x-DAC V8, HAInfo NG27
Herbies Ti-9 / Vibrapods / MIT Shotgun AC1 IEC's / MIT Shotgun 2 IC's / MIT Shotgun 2 Speaker Cables
PS Audio Cryo / PowerPort Premium Outlets / Exact Power EP15A Conditioner
Walnut SDA 2B TL /Oak SDA SRS II TL (Sonicaps/Mills/Cardas/Custom SDA ICs / Dynamat Extreme / Larry's Rings/ FSB-2 Spikes
NAD SS rigs w/mods
GIK panels -
I'll take the pair if still available.
Craigb]Beach Audio[/b]: Rega RP6 (mods) - AT33PTG/II - Parks Budgie SUT - PSAudio NPC * Eversolo DMP-A6 * Topping D90iii * Joule-Electra LA-100 mkIII * Pass Aleph 30 * MIT S3 * Polk SRS 2.3tl (mods) * PSAudio PPP3
Beach Study: Pro-Ject Stream Box S2 Ultra & Pre Box S2 * Pass ACA * DH Labs SS Q10 * Brines Folded ML-TQWT RS 40-1354 * PSA Dectet
Beach Master: WiiM Pro * Dayens Menuetto * Zu Libtec * Dynaudio Audience 50
Beach Den: Bluesound Powernode 2i * DH Labs SS Q10 * Zu Omen DWII * Richard Gray RGPC
Town Study: WiiM Pro * Chord Qute (Pardo) * Elekit TU-8600 * MIT S3 * Revel M22 * Beyer DT-990 * Shunyata Hydra 2
Town Den: Music Hall mm5.1se - Denon DL-103r - Jolida JD9ii (mods) * WiiM Pro * Cary xCiter * Rogue 99 Magnum * Schiit Aegir * MIT S3 * Polk SRS 1.2tl (mods) * Dectet * Bottlehead Crack - Senn 600
Town Porch: WiiM Pro Plus * Sunfire Sig II * Canare 4S11 * Magnepan 1.6 * Dectet -
I'll take the pair if still available.
Craig
Great! PM sent.
I should have done this in August when we stayed in Surf City and I could have dropped them offVTL ST50 w/mods / RCA6L6GC / TlfnknECC801S
Conrad Johnson PV-5 w/mods
TT Conrad Johnson Sonographe SG3 Oak / Sumiko LMT / Grado Woodbody Platinum / Sumiko PIB2 / The Clamp
Musical Fidelity A1 CDPro/ Bada DD-22 Tube CDP / Conrad Johnson SD-22 CDP
Tuners w/mods Kenwood KT5020 / Fisher KM60
MF x-DAC V8, HAInfo NG27
Herbies Ti-9 / Vibrapods / MIT Shotgun AC1 IEC's / MIT Shotgun 2 IC's / MIT Shotgun 2 Speaker Cables
PS Audio Cryo / PowerPort Premium Outlets / Exact Power EP15A Conditioner
Walnut SDA 2B TL /Oak SDA SRS II TL (Sonicaps/Mills/Cardas/Custom SDA ICs / Dynamat Extreme / Larry's Rings/ FSB-2 Spikes
NAD SS rigs w/mods
GIK panels -
Sent. Thanks!b]Beach Audio[/b]: Rega RP6 (mods) - AT33PTG/II - Parks Budgie SUT - PSAudio NPC * Eversolo DMP-A6 * Topping D90iii * Joule-Electra LA-100 mkIII * Pass Aleph 30 * MIT S3 * Polk SRS 2.3tl (mods) * PSAudio PPP3
Beach Study: Pro-Ject Stream Box S2 Ultra & Pre Box S2 * Pass ACA * DH Labs SS Q10 * Brines Folded ML-TQWT RS 40-1354 * PSA Dectet
Beach Master: WiiM Pro * Dayens Menuetto * Zu Libtec * Dynaudio Audience 50
Beach Den: Bluesound Powernode 2i * DH Labs SS Q10 * Zu Omen DWII * Richard Gray RGPC
Town Study: WiiM Pro * Chord Qute (Pardo) * Elekit TU-8600 * MIT S3 * Revel M22 * Beyer DT-990 * Shunyata Hydra 2
Town Den: Music Hall mm5.1se - Denon DL-103r - Jolida JD9ii (mods) * WiiM Pro * Cary xCiter * Rogue 99 Magnum * Schiit Aegir * MIT S3 * Polk SRS 1.2tl (mods) * Dectet * Bottlehead Crack - Senn 600
Town Porch: WiiM Pro Plus * Sunfire Sig II * Canare 4S11 * Magnepan 1.6 * Dectet -
Payment received!
I will actually mail out on Monday, but I'll have them safely packaged and a tracking number soon.VTL ST50 w/mods / RCA6L6GC / TlfnknECC801S
Conrad Johnson PV-5 w/mods
TT Conrad Johnson Sonographe SG3 Oak / Sumiko LMT / Grado Woodbody Platinum / Sumiko PIB2 / The Clamp
Musical Fidelity A1 CDPro/ Bada DD-22 Tube CDP / Conrad Johnson SD-22 CDP
Tuners w/mods Kenwood KT5020 / Fisher KM60
MF x-DAC V8, HAInfo NG27
Herbies Ti-9 / Vibrapods / MIT Shotgun AC1 IEC's / MIT Shotgun 2 IC's / MIT Shotgun 2 Speaker Cables
PS Audio Cryo / PowerPort Premium Outlets / Exact Power EP15A Conditioner
Walnut SDA 2B TL /Oak SDA SRS II TL (Sonicaps/Mills/Cardas/Custom SDA ICs / Dynamat Extreme / Larry's Rings/ FSB-2 Spikes
NAD SS rigs w/mods
GIK panels -
Carefully packaged, labelled, tracking number emailed and I will ship out first thing Monday morning.VTL ST50 w/mods / RCA6L6GC / TlfnknECC801S
Conrad Johnson PV-5 w/mods
TT Conrad Johnson Sonographe SG3 Oak / Sumiko LMT / Grado Woodbody Platinum / Sumiko PIB2 / The Clamp
Musical Fidelity A1 CDPro/ Bada DD-22 Tube CDP / Conrad Johnson SD-22 CDP
Tuners w/mods Kenwood KT5020 / Fisher KM60
MF x-DAC V8, HAInfo NG27
Herbies Ti-9 / Vibrapods / MIT Shotgun AC1 IEC's / MIT Shotgun 2 IC's / MIT Shotgun 2 Speaker Cables
PS Audio Cryo / PowerPort Premium Outlets / Exact Power EP15A Conditioner
Walnut SDA 2B TL /Oak SDA SRS II TL (Sonicaps/Mills/Cardas/Custom SDA ICs / Dynamat Extreme / Larry's Rings/ FSB-2 Spikes
NAD SS rigs w/mods
GIK panels -
Got 'em safe and sound. Thanks!b]Beach Audio[/b]: Rega RP6 (mods) - AT33PTG/II - Parks Budgie SUT - PSAudio NPC * Eversolo DMP-A6 * Topping D90iii * Joule-Electra LA-100 mkIII * Pass Aleph 30 * MIT S3 * Polk SRS 2.3tl (mods) * PSAudio PPP3
Beach Study: Pro-Ject Stream Box S2 Ultra & Pre Box S2 * Pass ACA * DH Labs SS Q10 * Brines Folded ML-TQWT RS 40-1354 * PSA Dectet
Beach Master: WiiM Pro * Dayens Menuetto * Zu Libtec * Dynaudio Audience 50
Beach Den: Bluesound Powernode 2i * DH Labs SS Q10 * Zu Omen DWII * Richard Gray RGPC
Town Study: WiiM Pro * Chord Qute (Pardo) * Elekit TU-8600 * MIT S3 * Revel M22 * Beyer DT-990 * Shunyata Hydra 2
Town Den: Music Hall mm5.1se - Denon DL-103r - Jolida JD9ii (mods) * WiiM Pro * Cary xCiter * Rogue 99 Magnum * Schiit Aegir * MIT S3 * Polk SRS 1.2tl (mods) * Dectet * Bottlehead Crack - Senn 600
Town Porch: WiiM Pro Plus * Sunfire Sig II * Canare 4S11 * Magnepan 1.6 * Dectet