This step up transformer is the 3Z (3 ohm, 1:30 step up ratio) version of the highly regarded CST-80. Great condition, very well made. Here are links to an owner discussion and a published review:https://forum.audiogon.com/discussions/any-members-tried-the-audio-interface-cst-80-sut https://www.gammaelectronics.xyz/audio_12-1982_audio-interface.html Thanks!

Audio Interface CST-80 3Z Step Up Transformer SUT - MC Phono Cartridge - 3 Ohm/Z Version -Pulled From a Working SystemSee our other listing for an audioquest 12 Meter Golden Gate RCA Pair Cable Manufacturers Specifications Primary Source ImpedanceSecondary Load ImpedanceTurns Ratio ImpedanceRatio Input Impedance, @ 1 kHzSecondary Source Impedance, @ 1 kHzVoltage Gain Frequency Response, 20 HzFrequency Response, @ 20 kHz Bandwidth, @-3 dBPhase Response, @ 20 Hz Phase Response, @ 20 kHzRise-Time (10% to 90%)Overshoot Max. THD (Below Saturation)Maximum Input Level, 1 % Saturation (dBV re: 775 mV)Transformer Noise Figure* 1.4 dB re: 2.7 ohms** | 1.7 dB re: 36.1 ohms***Referred to impedance of 4,720 ohms (CST-80L) or 4,935 ohms (CST-80H); parallel value of secondary impedance and load. id=aswift_2 name=aswift_2 sandbox=allow-forms allow-popups allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation width=1200 height=0 frameborder=0 marginwidth=0 marginheight=0 vspace=0 hspace=0 allowtransparency=true scrolling=no src=https://googleads.g.doubleclick.net/pagead/ads?gdpr=0&client=ca-pub-1957695205139391&output=html&h=280&adk=2723956906&adf=3284178370&pi=t.aa~a.893196910~i.47~rp.4&w=1200&fwrn=4&fwrnh=100&lmt=1700257896&num_ads=1&rafmt=1&armr=3&sem=mc&pwprc=1991522421&ad_type=text_image&format=1200x280&url=https%3A%2F%2Fwww.gammaelectronics.xyz%2Faudio_12-1982_audio-interface.html&fwr=0&pra=3&rh=200&rw=1280&rpe=1&resp_fmts=3&wgl=1&fa=27&dt=1712158551198&bpp=1&bdt=1119&idt=-M&shv=r20240328&mjsv=m202403280101&ptt=9&saldr=aa&abxe=1&cookie=ID%3Dc252cab57ad6290f%3AT%3D1712158550%3ART%3D1712158550%3AS%3DALNI_MbLIbPHLnWCajdftw6uNQOvvd41iQ&gpic=UID%3D00000dd846eab07e%3AT%3D1712158550%3ART%3D1712158550%3AS%3DALNI_MZ7CrKHWgScCoqL8LvicuOEwNkaOw&eo_id_str=ID%3Dc6eae8dfe85dcbee%3AT%3D1712158550%3ART%3D1712158550%3AS%3DAA-AfjbgLYsVjqrvtbv_F09UmN-t&prev_fmts=0x0%2C1200x280&nras=2&correlator=3401357260186&frm=20&pv=1&ga_vid=1138092850.1712158551&ga_sid=1712158551&ga_hid=991545068&ga_fc=0&u_tz=-240&u_his=2&u_h=1120&u_w=1792&u_ah=1009&u_aw=1792&u_cd=24&u_sd=2&adx=52&ady=2026&biw=1304&bih=905&scr_x=0&scr_y=0&eid=44759875%2C44759926%2C44759842%2C44798934%2C95325975%2C95326315%2C95329462%2C31082333%2C95322183%2C31082143&oid=2&pvsid=1957959132664223&tmod=120674867&uas=0&nvt=1&ref=https%3A%2F%2Fwww.google.com%2F&fc=1408&brdim=5%2C25%2C5%2C25%2C1792%2C25%2C1304%2C1008%2C1304%2C905&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=128&bc=31&bz=1&ifi=3&uci=a!3&btvi=1&fsb=1&dtd=102 data-google-container-id=a!3 tabindex=0 title=Advertisement aria-label=Advertisement data-load-complete=true data-google-query-id=CJnghdKvpoUDFemi0QQdtMQNDg style=left: 0px; position: absolute; top: 0px; border: 0px; width: 1200px; height: 0px;>**Parallel value of source impedance and input impedance.WE SHIP WITHIN 2 BUSINESS DAYS & WILL PACK WELL. AS PER EBAY REGULATIONS ITEMS TOTALLING $750 OR HIGHER NEED TO REQUIRE AN ADULT SIGNATURE WE WILL INSURE FOR THE FULL PURCHASE PRICETHIS SIGNIFICANTLY INCREASES THE SHIPPING COST. WE ARE NOT IN THE BUSINESS OF PROFITING FROM S&H FEESLOCAL PICK-UP WELCOMED AND SHIPPING WILL BE REFUNDED. WE SELL SOME OF THE SAME ITEMS CONCURRENTLY ON REVERBIF THE ITEM SELLS ON BOTH SITES WE WILL HONOR THE SALETHAT HAS THE EARLIEST TIME STAMP TO BE FAIR. WE ARE A PROFESSIONAL AUDIO VIDEO TECHNOLOGY INSTALLATION COMPANY WITH OVER 40 YEARS OF EXPERIENCE.MOST OF WHAT WE SELL ARE OVERSTOCK INVENTORY ITEMSAS WELL AS PARTS FROM REMODELED ELECTRONIC SYSTEMS.USUALLY FROM SMOKE FREE / HVAC CONTROLLED ENVIRONMENTS. IF AN ITEM HAS OBVIOUS FLAWS IT WILL BE NOTED & PHOTOGRAPHED. PLEASE RESEARCH ITEM/S ONLINE WITH MANUFACTURER,BEFORE PLACING A BID OR MAKING YOUR “BUY IT NOW” PURCHASE.MANUALS, GUIDES & SETUP INFO ARE USUALLY AVAILABLE ONLINE.OEM MANUALS ARE A GOOD REFERENCE FOR PART NUMBERS. ALL USED ITEMS TESTED & CLEANED PRIOR TO POSTING. OUR POLICY STATES NO RETURNS & ALL SALES ARE FINAL.EXCEPTIONS CONSIDERED ONLY DUE TO CIRCUMSTANCES BEYOND BOTH OF OUR CONTROL. OUR EXCELLENT FEEDBACK COMES FROM CAREFULLY AND ACCURATELY LISTING ITEMS!!!PLEASE DON’T OPEN A CLAIM WITHOUT CONTACTING US!!!99% OF CLAIMS ARE DUE TO BUYER ERROR OR LACK OF PATIENCE CARRIER / SHIPPER DELAYS IN ARE NOT OUR RESPONSIBILITY PLEASE NOTE THAT IF YOU HAVEN’T SHIPPED ANYTHING RECENTLY, USPS / FEDEX / UPS HAVE SIGNIFICANTLY RAISED THEIR RATES GOOD LUCK BIDDING & BUYING!!!!!

This AUDIO Interface CST-80 (40 Ohm) -Step-up Transformer is a great addition to any setup. It is compatible with a universal brand and model, making it a versatile choice. The black color of the transformer adds a sleek and professional touch. The item measures 2 inches in height, 5 inches in length, and 3 inches in width, with a weight of 3 lbs. It was made in the Japan ensuring its high quality. This transformer is perfect for those looking to enhance their audio experience. Its excellent features are sure to impress any user. Dont miss out on the opportunity to add this amazing piece to your collection.

This AUDIO Interface CST-80 (40 Ohm) -Step-up Transformer is a great addition to any setup. It is compatible with a universal brand and model, making it a versatile choice. The black color of the transformer adds a sleek and professional touch. The item measures 2 inches in height, 5 inches in length, and 3 inches in width, with a weight of 3 lbs. It was made in the Japan ensuring its high quality. This transformer is perfect for those looking to enhance their audio experience. Its excellent features are sure to impress any user. Dont miss out on the opportunity to add this amazing piece to your collection.

AUDIO Interface CST-80 40-Z Step-up Transformer In Excellent Condition Item Description This unit is in excellent condition (please see photos). This Cartridge has been checked and tested confirm working perfectly. Shipping Policy We ship the item via DHL with tracking number. Item will arrive approximately one week. Duties and Taxes Policy Import duties, taxes, and other charges which are not included in the item price or shipping charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying.

This AUDIO Interface CST-80 (40 Ohm) -Step-up Transformer is a great addition to any setup. It is compatible with a universal brand and model, making it a versatile choice. The black color of the transformer adds a sleek and professional touch. The item measures 2 inches in height, 5 inches in length, and 3 inches in width, with a weight of 3 lbs. It was made in the Japan ensuring its high quality. This transformer is perfect for those looking to enhance their audio experience. Its excellent features are sure to impress any user. Dont miss out on the opportunity to add this amazing piece to your collection.

This AUDIO Interface CST-80 (40 Ohm) -Step-up Transformer is a great addition to any setup. It is compatible with a universal brand and model, making it a versatile choice. The black color of the transformer adds a sleek and professional touch. The item measures 2 inches in height, 5 inches in length, and 3 inches in width, with a weight of 3 lbs. It was made in the Japan ensuring its high quality. This transformer is perfect for those looking to enhance their audio experience. Its excellent features are sure to impress any user. Dont miss out on the opportunity to add this amazing piece to your collection.

Cat CST 5.1 Kanal Anlage mit Cat Centerlautsprecher CST-1002 Stereo Power Amplfier 60 Watt RMSCST-1001 PreamplifierCST-1003 Stereo Digital TunerLEB 2050 Centerlautsprecher Gebrauchsspuren sind vorhanden, am Tuner sind einige Kratzer (siehe Bilder) Ohne Fernbedienung Es handelt sich um einen Privatverkauf. Der Verkauf erfolgt unter Ausschluss der gesetzlichen Haftung für Sachmängel. Des Weiteren ist eine Rückgabe, ein Widerruf oder ein Umtausch ausgeschlossen.

This AUDIO Interface CST-80 (40 Ohm) -Step-up Transformer is a great addition to any setup. It is compatible with a universal brand and model, making it a versatile choice. The black color of the transformer adds a sleek and professional touch. The item measures 2 inches in height, 5 inches in length, and 3 inches in width, with a weight of 3 lbs. It was made in the Japan ensuring its high quality. This transformer is perfect for those looking to enhance their audio experience. Its excellent features are sure to impress any user. Dont miss out on the opportunity to add this amazing piece to your collection.

This AUDIO Interface CST-80 (40 Ohm) -Step-up Transformer is a great addition to any setup. It is compatible with a universal brand and model, making it a versatile choice. The black color of the transformer adds a sleek and professional touch. The item measures 2 inches in height, 5 inches in length, and 3 inches in width, with a weight of 3 lbs. It was made in the Japan ensuring its high quality. This transformer is perfect for those looking to enhance their audio experience. Its excellent features are sure to impress any user. Dont miss out on the opportunity to add this amazing piece to your collection.

This AUDIO Interface CST-80 (40 Ohm) -Step-up Transformer is a great addition to any setup. It is compatible with a universal brand and model, making it a versatile choice. The black color of the transformer adds a sleek and professional touch. The item measures 2 inches in height, 5 inches in length, and 3 inches in width, with a weight of 3 lbs. It was made in the Japan ensuring its high quality. This transformer is perfect for those looking to enhance their audio experience. Its excellent features are sure to impress any user. Dont miss out on the opportunity to add this amazing piece to your collection.

Moving coil step up transformer. Tested working as intended. See photos for specifications/compatibility. Clean unit.

Audio Interface CST-80 (40-Z) Step-Up Transformer in excellent working condition. One of the finest SUTs in the audio world, and a highly regarded audiophile component. It looks new but dont know for sure look at pics buyer pays shipping