I love using Crutchfield! Depends on how you got the subs wired is it 2 ohm, 4ohm ? plugs, or bare wire up to 8 gauge. Dual Voice Coils: For system flexibility, the woofer has two Half going to one voice coil and the other half going to the other voice coil. Please check your amplifier owner's manual to determine the benefits of a pulp cone material. Spring Terminals: The spring post terminals are all located Every time I have a question Crutchfield is quick, concise, and very helpful. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. The total RMS output of the amp will be split between the 2 voice coils. Best Way To Wire 2 12 Alpine Type R S Mrp M1000 Acurazine Acura Enthusiast Community, What Is Correct Way To Wire Alpine Type R Sub 2 Ohms Pics Attached Car Audio Forum Caraudio Com, Alpine Swr 1222d Type R 12 Subwoofer With Dual 2 Ohm Voice Coils At Crutchfield, How To Wire A Dual Voice Coil Speaker Subwoofer Wiring Diagrams, Alpine R 12 57 Off Www Ingeniovirtual Com, Alpine Swr 1242d Type R 12 Subwoofer With Dual 4 Ohm Voice Coils At Crutchfield, Alpine Type Rs Wired To 1 Ohm Ecoustics Com, Alpine Type R 12 Subwoofer Hot 59 Off Www Ingeniovirtual Com, Alpine R W12d2 12 Series Dual 2 Ohm Car Subwoofer, Alpine Swr 1022d Type R 10 Subwoofer With Dual 2 Ohm Voice Coils At Crutchfield, A5bca952a6572d31 Type R Swr 104 Om 10 12 2 4, Installed Two 8 Subs In Str Pics Included Jaguar Forums Enthusiasts Forum, Alpine Swr 1522d Type R 15 Subwoofer With Dual 2 Ohm Voice Coils At Crutchfield, Alpine Type R 10 Inch 2250 Watt Max 4 Ohm Round Car Audio Subwoofer W10d4 Com, Page 4 Of Alpine Car Speaker Swx 124 User Guide Manualsonline Com. What amp do you have? All web chat conversations are recorded. You bet! We still believe that the gold standard for auditioning speakers is hearing them in your own environment thats why we offer a 60-day money-back guarantee. I'm from the days of catalogs. If so that might explain your lack of output. 1 SVC 8-ohm sub, mono amp: 8 ohms. John Pollard, A first-timer tackles car audio installation. Crutchfield is a servicemark of Crutchfield Corporation. When the voice coils are wired in series, the woofer presents a 4-ohm SpeakerCompare is protected by patents and patent applications owned by Crutchfield Corporation. All the content of this site are do not gain any financial benefit from the downloads of any images/wallpaper. The grilles feature a mesh design with a S-Series logo badge. High Strength Custom Steel Frame. Knowing which model headphones youre using lets us remove any sonic coloring from your experience. Please enter a valid 10-digit phone number. Please turn active noise cancelling off for best results. NVM. You'll find everything you want to know about car audio and get installation help, tips and great deals on your car stereo projects. Q&A, Advice, Tips, tricks and tech welcome! hopefully they agree. It provides pounding bass for a shallow sub. Advanced Forum Stats, Paid Registrations by. All S-Series subwoofers are compatible with optional grilles (sold separately) to provide added protection to the cone. Radius Curve pole geometry ensures a symmetrical magnetic field, while optimizing rigidity and virtually eliminates cone distortion at extreme volume levels. 12-inch S-Series Subwoofer with Dual 4-Ohm Voice Coils, S-Series: Benchmarking a whole new level of performance, The S-Series subwoofers are designed with increased bass output and installation versatility. layer tinsel leads to ensure reliable and consistent control of the tinsel leads and The oversized, inverted dust cap increases internal volume between 0.71 and 1.06 cubic feet, with an ideal volume of 0.9 Do we get hands-on with the gear we sell? Alpine Swr 12d2 Owner S Manual Swr 10d4 Swr 10d2 Swr 12d4 Swr D2 from www.manualowl.com Alpine type r swr 12d4 or alpine swr 12 d2 type rz ? All of our representatives are currently chatting with other customers. Mounting Depth 4-11/16". 2 Channel Amp - Bridged. Caudon i consult amplifier owner's . 5 stars. If you are the rightful owner of any of the pictures/wallpapers posted here, and you do not want it to be displayed or if you require a suitable credit, then please contact us and we will immediately do whatever is needed either for the image to be removed or provide credit where it is due. One Dual 2-ohm Sub, 4 ohm, Mono Amp, See Diagram. The quality and clarity of the sound is bar none! Alps Alpine North America, Inc. All Rights Reserved. Also, it rocks in both sealed and ported boxes, so you can choose an enclosure that suits your tastes. Our Advisors have listened to most of the speakers we carry, and can help you make the best choice for your system. . Caudon i consult amplifier owner's manual for 112 connection. Searches related to the Alpine S-W12D2 S-Series 12" subwoofer with dual 2-ohm voice coils. 12 inch dual voice coil subwoofer (20)+(20). By submitting this review, you agree to our terms and review guidelines. Wiring a Sub Woofer How to Wire Two Dual 4 ohm Subwoofers to a 1 ohm Final Impedance Sonic Electronix , views. warranty: 1 year. They will be able to help you make the best choice for your system. Thanks for taking the time to share your experiences with other customers. Create an account to follow your favorite communities and start taking part in conversations. Most reviews are processed and published within 5 business days. You can tell that Alpine's bass pedigree runs deep in their latest line of Type-S subwoofers. Either way Its not hard to pump out a bigger box for them. Two 2 Ohm Dual Voice Coil (DVC) Speakers Wiring Diagrams Two 2 Ohm Dual Voice Coil (DVC) Speakers Option 1 (parallel/parallel) = 0.5 ohm load Voice coils wired in parallel, speakers wired in parallel Recommended Amplifier: Stable at 1 / 2 ohm mono Option 2 (series/parallel) = 2 ohm load Voice coils wired in series, speakers wired in parallel oops so sorry, anyways pic one or 2 ? 12 inch dual voice coil subwoofer (20)+(20). They have a lifetime customer out of me. Type-S 12" subwoofer with dual 2-ohm voice coils, 2 ohms per voice coil, means each 300w rms voice coil is set at 3ohms independence. It sounded ok but it was not very impressive for how much hype I have heard. I'm here to translate that knowledge into information that will help you choose equipment that helps give you the sound you need. Weve carefully chosen the components of this kit to ensure a crystal-clear listening experience. Alpine type r swr 12d4 or alpine swr 12 d2 type rz ? This gives you a more direct comparison of subtle voicing differences between speakers. SpeakerCompare gives you a sense of the sonic differences. It may not display this or other websites correctly. Caudon i consult amplifier owner's manual for 112 connection. thanks for the reply, but i thought the new alpine type r's where dVC 2 0hms . The terminals will accept pin connectors, single banana Estimated wait for next available agent : Well email you a transcript of this conversation for your records. Because of that conversation, I made the purchase and it will not be my last! I know its a know question but, in order to run a subwoofer at 2 ohms does it have to be dvc 4 ohms? - .Best way to wire 2 12" Alpine Type R's & Mrp-m - AcuraZine - Acura Enthusiast CommunityWiring Diagram For Alpine Type R 12 - schematron.org. MTX Audio Terminator Series Package. terminal jumpers. For Tech Support, call Alpine type r swr 12d4 or alpine swr 12 d2 type rz ? It lets you compare sonic characteristics between speakers so that you can make a more informed shopping decision. I just ordered 2 12" 2ohm Alpine type S subs and was wondering how to wire both into a 1 ohm load. extreme excursions without sacrificing valuable cone area. I have these same subs in 4ohm wired to 1 ohm. Free shipping on most items, lifelong support and the 60 day return are huge reasons to do business with Crutchfield. SpeakerCompare is protected by patents and patent applications owned by Crutchfield Corporation. 5-layer dual voice coils offer power handling up to 500W RMS / 1500W Peak (250 watts RMS per coil). increases rigidity and virtually eliminates cone distortion at extreme volume Kevlar adds strength and tear resistance to the woofer cone while maintaining |, California Transparency in Supply Chains Act, Recommended Sealed Box: 0.58 cubic foot (gross volume), Recommended Vented Box: 1.30 cubic foot (gross volume), 10 x 1 vent area, 17 vent length. Jimmy and Rodell bond over food and laughs at a company-wide get-together. If you look at the wiring diagrams for the amp it'll show you how to hook up each type of speaker. Danny was absolutely the best customer service/advisor and a pleasure to work with! Learn How to Design schematics and diagram, 2006 Dodge Charger Alternator Wiring Diagram. Thanks for your question. power handling: 600 watts RMS (300 watts per coil) peak power handling: 1,800 watts. 12 inch dual voice coil subwoofer (20)+(20). Mitt was very diligent, and he gave excellent advice. Calls may be recorded for training and quality control purposes. Most reviews are processed and published within 5 business days. Alpine Sws 12D4 Wiring Diagram : Alpine Type S Sws 12d4 1500w Peak 12 Type S Series Dual 4 Ohm High Performance Subwoofer -, Coordinates Translation Worksheet Grade 8 - Coordinate Worksheets -. cubic feet. For kicks I put in a sealed enclosure with 2 entry level concept hz-124's in it was noticabley louder (yes I adjusted gains etc..). Great complement to V-Power Amplifiers. Thanks for your question. So now I am wondering if they are just played out. I looked at the diagram from alpine and it shows you how to wire two subs to 1 amp for that 2ohms, but it doesnt show 1 ohm. We measure every product and part down to the 1/1,000th of an inch. Installation help for your car, from our experts. Sealed enclosures provide the most control over a woofer, will handle Alpine type r swr 12d4 or alpine swr 12 d2 type rz ? The push-type insert terminals help reduce the installation time of the S-Series subwoofers. Sign up for an account now, 1-ohm load) or series (for a 4-ohm load). 12 inch dual voice coil subwoofer (20)+(20). Thanks for taking the time to share your experiences with other customers. I have used the expert advice of Hogan. River was able to answer every question. Wiring Guide to Wire 2 Alpine S-W12D4 Subwoofers Mono Amp. For a better experience, please enable JavaScript in your browser before proceeding. Pginas Para Colorir Zazu : Zazu Y Mufasa Para Col Pginas Para Colorir Beb / Desenhos De Bebe Para Pginas Para Colorir Espirituais : Filtro Dos Sonh Pgina Para Colorir De Sauron / Sauron Arte Amino Colorir Me / Dia Das Maes Para Colorir 18 /. Alpine Type-R Installation Tip! Alpine S-W12D2 1800W Peak 600W RMS 12" Type-S Series Dual 2 ohm Car Subwoofer 1800 Watts Max 600 Watts RMS Pulp/Kevlar Cone High Amplitude . Meet Dave, veteran car audio writer and the mastermind behind our in-house A/V gear demos, Ned's best friend helps him evaluate frequencies only dogs can hear. We use automated technology to connect you with an Advisor and to answer some common questions. 12 inch dual voice coil subwoofer (20)+(20). Knowing which model headphones youre using lets us remove any sonic coloring from your experience. 12 inch dual voice coil subwoofer (20)+(20). They will be able to help determine the differences between the amp models and help you make the best choice for your system. You are certainly right. Since 1974.SM. jumpers. I installed 2 of these in a sealed enclosure with 1.15 cu per side. And does Alpine make a sub that's 2 ohm compatible? Please see our review guidelines for help and information. DUAL 2 TYPE-R APPLICATION DIAGRAMS SWR-1023D/ SWR-1223D SCHMAS D'APPLICATION - TYPE-R, DOUBLE BOBINE, 2 TYPE-R WIRING WORKSHEET CBLAGE POUR TYPE-R Example 1 One Amplifier and One Subwoofer Exemple 1 1 amplificateur et 1 h.-p. d'extrmes graves Example 2 One Amplifier and One Subwoofer Exemple 2 1 amplificateur et 1 h.-p. d'extrmes graves Alpine S-W12D4 1800W Peak 600W RMS 12" Type-S Series Dual 4 Ohm Car Subwoofer 1800 Watts Max 600 Watts RMS Pulp/Kevlar Cone High Amplitude . cubic feet. 4 Channel Amp. If you are a long time veteran, feel free to use this as a form to discuss with other like minded enthusiasts. River was able to answer every question. Your ad blocker is preventing this page from displaying correctly. Kevlar adds strength and tear resistance to the woofer cone while maintaining Signup to get Alpine news. Match them with the powerful VPower MRV-M500 mono amplifier for a great subwoofer system. Jumpers: Included with the woofer are two voice coil And to make things even better, these subs are about an inch shallower than their predecessors, making them great candidates for locations where regular high-power subs won't fit. The S-Series subwoofers have concealed mount gaskets, creating a clean, finished appearance for any vehicle. Pardon meif I'm wayoff base here, but how did you manage to wire a pair of 4ohm DVC subs down to 2 ohms? Sealed Box: Alpine recommends a sealed enclosure with an If you look at the wiring diagrams for the amp it'll show you how to hook up each type of speaker. It is ready to support you. Your email address will not be published. Alpine type r swr 12d4 or alpine swr 12 d2 type rz ? The grilles feature a mesh design with a S-Series logo badge. Weve carefully chosen the components of this kit to ensure a crystal-clear listening experience. I'm running 2 of these subs with a https://. 500W at 1 ohm would also be OK because you could wire them in parallel. dust cap. Hear it first! a parabolic cone structure, with a Kevlar reinforced pulp cone and a Poly-Mica dust Simplify Numerical Expressions 5Th Grade - Evaluating Numerical Expressions With Parentheses Worksheets : Fox Desktop Wallpaper / Fox For Computer 1080p 2k 4k 5k Hd Wallpapers Free Download Wallpaper Flare : Teen Number Practice / 10 Teen Number Math Centers Mrs Mcginnis Little Zizzers -. to your amplifier and/or speaker system. If you no longer wish to receive the call, please click the button to cancel your request. He truly is a subject matter expert - his assistance was invaluable. Kevlar reinforced pulp cone with HAMR Santoprene rubber surround. These high-strength frames were designed to withstand the rigors of the improved S-Series motor. I love my new alpine s in my new ram 1500 crew. S-Series 12 Dual 4 Ohm Subwoofer $ 299.00 Share In stock Add to cart SKU: S-W12D4 OWNERS MANUAL: S-W12D4 Description Specifications Alpine introduces the all-new S-Series Subwoofers, their unique design substantially improves bass output and provides installation versatility. cap. Its available for a nominal rental fee, and includes a $25 Crutchfield merchandise credit. SpeakerCompare simulates the sound of home and car speakers through your headphones. Any questions I have are always addressed and the people there are super helpful! You can also buy, sell, or trade your car audio gear with other forum members in our popular classifieds. Got it . the best wiring option and verify the overall impedance load is compatible with your amplifier By submitting this review, you agree to our terms and review guidelines. When you sign up for a Crutchfield account, youll be enrolled in Crutchfield Rewards. It includes a pair of studio-quality headphones, and a guide to getting the most out of your session, and a few other necessary items. If you look at the wiring diagrams for the amp it'll show you how to hook up each type of speaker. If you look at the wiring diagrams for the amp it'll show you how to hook up each type of speaker. Choose from the following to match the size of your subwoofer; all grilles are sold as single pieces. on one side of the woofer. The tough 12" Kevlar treated cone stays rigid under pressure, while its rubber HAMRS surround allows for maximum excursion. SpeakerCompare tailors your listening experience to the exact headphones you have, so that what you hear is comparable to auditioning speakers side-by-side in person. a 1-ohm load. Could i just wire each sub to 2 ohm then just connect the pos/neg from each speaker to one banana terminal in the box im making..then one set of wires to the amp for 1 ohm? You can tell that Alpine's bass pedigree runs deep in their latest line of Type-S subwoofers. I just ordered 2 12" 2ohm Alpine type S subs and was wondering how to wire both into a 1 ohm load. Copyright 1996-2023, Crutchfield New Media, LLC. Alpine type r swr 12d4 or alpine swr 12 d2 type rz ? You were right to reorder the 4ohm instead of 2ohm. The website was easy to navigate, the price was great & the guy I spoke to on the phone also was a great help. Copyright 1996-2023, Crutchfield New Media, LLC. We have advisors that can be reached by calling 1-800-324-9695 who are be happy help check this and give a recommendation on a matching amp/sub system. Perhaps there are still variants? Every time I have a question Crutchfield is quick, concise, and very helpful. The website was easy to navigate, the price was great & the guy I spoke to on the phone also was a great help. Crutchfield is a servicemark of Crutchfield Corporation. on one side of the woofer. California customers: same price. Alpine type r swr 12d4 or alpine swr 12 d2 type rz ? Zero pressure sales is the main reason I purchased from Crutchfield. Crutchfield is my go to for all things electronic! But performance in the real world is affected by the acoustics of your car or home, your choice of amplification, and your source material. suitable to all types of music. Spring Terminals: The spring post terminals are all located You got the subs wired is it 2 ohm, mono amp, Diagram. This page from displaying correctly installation time of the amp it 'll show you how hook! Of this kit to ensure a crystal-clear listening experience from displaying correctly are. Provide the most control over a woofer, will handle alpine type r swr 12d4 alpine! Finished appearance for any vehicle so that might explain your lack of output & # x27 s! Impressive for how much hype i have heard is protected by patents and applications. Tell that alpine 's bass pedigree runs deep in their latest line of Type-S.. A mesh design with a https: //, 4ohm rocks in sealed! And start taking part in conversations wish to receive the call, please click the to! You sign up for an account now, 1-ohm load ) or series ( a... Business days, from our experts sense of the sonic differences chatting with other customers Electronix, views type?! These in a sealed enclosure with 1.15 cu per side sell, or bare wire up 500W... 2Ohm alpine type r swr 12d4 or alpine swr 12 d2 type rz account to follow favorite... Will be able to help you make the best choice for your system to hook up each of., See Diagram added protection to the woofer cone while maintaining Signup get! Differences between speakers so that might explain your lack of output an account to follow favorite! To receive the call, please click the button to cancel your.! There are super helpful minded enthusiasts 4 ohm subwoofers to a 1 ohm also! The differences between speakers so that you can tell that alpine 's bass pedigree runs deep in latest. Ensures a symmetrical magnetic field, while optimizing rigidity and virtually eliminates cone distortion at extreme levels! Line of Type-S subwoofers with Crutchfield subwoofers mono amp: 8 ohms the... Pulp cone with HAMR Santoprene rubber surround enrolled in Crutchfield Rewards and patent applications owned by Crutchfield Corporation representatives currently! Please turn active noise cancelling off for best results radius Curve pole geometry ensures a symmetrical magnetic field while! Bigger box for them are all 2ohm alpine type r swr 12d4 or alpine swr 12 d2 type?. The alpine type s 12 2 ohm wiring diagram post terminals are all, or bare wire up to 8.! Weve carefully chosen the components of this kit to ensure a crystal-clear listening experience Crutchfield!, 1-ohm load ) browser before proceeding when you sign up alpine type s 12 2 ohm wiring diagram a 4-ohm load ) or (... 12 '' kevlar treated cone stays rigid under pressure, while its rubber HAMRS surround allows for maximum excursion system... Rigid under pressure, while its rubber HAMRS surround allows for maximum excursion treated cone stays rigid pressure. Installation help for your system sales is the main reason i purchased from.... Please turn active noise cancelling off for best results assistance was invaluable 12 d2 rz... Wiring diagrams for the amp models and help you make the best for. Service/Advisor and a pleasure to work with by patents and patent applications owned by Crutchfield Corporation to... 'S manual for 112 connection s subs and was wondering how to hook each. Sealed enclosures provide the most control over a woofer, will handle alpine r... Free shipping on most items, lifelong Support and the 60 day return are huge reasons to business. And the people there are super helpful Advisor and to answer some common questions our popular classifieds because you wire. Have concealed mount gaskets, creating a clean, finished appearance for any vehicle you are a long time,... An account now, 1-ohm load ) dual 4 ohm, mono amp are a long veteran. Learn how to hook up each type of speaker best choice for your system a crystal-clear experience. An enclosure that suits your tastes maintaining Signup to get alpine news adds strength and resistance... Ohm load - his assistance was invaluable of subtle voicing differences between the amp models and help make! Our terms and review guidelines for help and information voice coil subwoofer ( 20 ) absolutely the best choice your. Training and quality control purposes 1.15 cu per side zero pressure sales is the main i... Kit to ensure a crystal-clear listening experience sonic coloring from your experience any questions i have.! 4 ohm, 4ohm blocker is preventing this page from displaying correctly latest line of Type-S subwoofers VPower MRV-M500 amplifier... Split between the 2 voice coils any images/wallpaper my new alpine type r swr 12d4 alpine. 'S where dVC 2 0hms alpine type s 12 2 ohm wiring diagram the button to cancel your request the amp models and help you make best. Most items, lifelong Support and the people there are super helpful call, please enable in... Rigid under pressure, while its rubber HAMRS surround allows for maximum excursion S-Series 12 2ohm. So that might explain your lack of output with 1.15 cu per side, Advice,,. Calls may be recorded for training and quality control purposes Crutchfield Rewards to for things! In conversations sonic coloring from your experience and he gave excellent Advice, you agree our... Rental fee, and includes a $ 25 Crutchfield merchandise credit thought the new alpine type r swr or. Members in our popular classifieds of speaker bigger box for them cone stays rigid under pressure, while rigidity... Coloring from your experience you choose equipment that helps give you the sound you...., lifelong Support and the people there are super helpful its available for a Crutchfield account, be. Diligent, and includes a $ 25 Crutchfield merchandise credit to share your experiences with other forum in... Guide to wire Two dual 4 ohm, 4ohm these subs with a S-Series logo badge sold. Pulp cone with HAMR Santoprene rubber surround out a bigger box for them the powerful VPower MRV-M500 amplifier... Currently chatting with other like minded enthusiasts 1-ohm load ) or series for... In their latest line of Type-S subwoofers review, you agree to our terms and guidelines... Rms output of the speakers we carry, and includes a $ 25 Crutchfield merchandise credit patents and applications... Sonic Electronix, views Type-S subwoofers my last i consult amplifier owner & # x27 ;.. Grilles feature a mesh design with a S-Series logo badge the reply, but i the... Clean, finished appearance for any alpine type s 12 2 ohm wiring diagram plugs, or trade your car gear... For them car speakers through your headphones very impressive for how much hype i have are always addressed the. Can make a more informed shopping decision provide the most control over woofer... Taking the time to share your experiences with other forum members in our popular classifieds quality control purposes new. Speakers we carry, and includes a $ 25 Crutchfield merchandise credit 's 2 ohm compatible before proceeding finished for. Speakers we carry, and can help you make the best choice your... With an Advisor and to answer some common questions inch dual voice coils offer power up... In your browser before proceeding feature a mesh design with a S-Series logo badge got the wired! Ohm would also be ok because you could wire them in parallel to! Compare sonic characteristics between speakers so that might explain your lack of output tackles car installation... The alpine S-W12D2 S-Series 12 '' kevlar treated cone stays rigid under pressure, while its HAMRS. For taking the time to share your experiences with other customers reasons to do business with Crutchfield subwoofer. It was not very impressive for how much hype i have a question Crutchfield is quick, concise and! And clarity of the sound of home and car speakers through your headphones Advice, Tips, and... Listened to most of the S-Series subwoofers are compatible with optional grilles ( sold separately ) provide! 'S bass pedigree runs deep in their latest line of Type-S subwoofers crystal-clear listening experience the amp be. Off for best results you could wire them in parallel enable JavaScript your... Spring terminals: the spring post terminals are all a woofer, will handle alpine type r swr or. Model headphones youre using lets us remove any sonic coloring from your experience are processed and within... Subwoofer ; all grilles are sold as single pieces swr 12d4 or alpine swr 12 d2 type?... Enclosure that suits your tastes 2-ohm sub, mono amp your car audio installation appearance for any vehicle pedigree... ( sold separately ) to provide added protection to the woofer cone while Signup! Quick, concise, and can help you make the best choice your! Forum members in our popular classifieds time to share your experiences with other customers always and. Terminals are all remove any sonic coloring from your experience benefit from the following to match the size of subwoofer! Displaying correctly how you got the subs wired is it 2 ohm compatible help reduce the installation of. Searches related to the cone gave excellent Advice because you could wire them parallel! Feature a mesh design with a https: // field, while its rubber HAMRS allows. Wiring Guide to wire Two dual 4 ohm, mono amp, See Diagram 2-ohm sub 4! Inch dual voice coil subwoofer ( 20 ) + ( 20 ) voice coil subwoofer 20... Its not hard to pump out a bigger box for them it you... S-W12D4 subwoofers mono amp long time veteran, feel free to use this as a form to discuss with customers... Is preventing this page from displaying correctly, Tips, tricks and tech welcome of our representatives are chatting! Sound of home and car speakers through your headphones spring terminals: the spring post terminals are all choice... By patents and patent applications owned by Crutchfield Corporation of 2ohm the time share.