For purchase, a gorgeous set of ESS Heil 4ohm woofers and factory passives. The surrounds were just replaced with open cell polyether foam, and the cones are very clean. The radiators are original to early and later ESS 12 builds. Resistance measurements of the woofers are 3.2 and 3.3 respectively. The rich sonics incorporated in the original bextrene cones should be considered essential to the overall sound of your ESS speakers. Utilized in several models of amt1(x), these are drop-in ready for models such as amt1a, 1b, 1c, 1d, and amt Monitor, including all bookshelf variants of those models. These are factory original 12 drivers by ESS of Sacramento. These drivers were optimized for the specific dividing networks and cabinet offerings that were available during the production years of amt1b, and amt monitor tower builds. Modern replacements (from ESS) are not engineered to be coupled with amt drivers, nor your existing crossover networks where applicable. No testing or sampling has been performed with the new, generic paper woofer drivers provided by ESS, currently. Packing will be very stout, expect these to arrive as advertised. FedEx will be the carrier of choice. As with all of my listings of ESS equipment, if you are looking for parts from that era of long gone builds, feel free to inquire as i will assist with whatever parts i may have inventory of. I will ship within 48 hrs of completed payment. Thank you for looking.

For purchase is a pair of ESS amt3 dividing networks removed from rock monitor tower cabinets. Original Heil amt crossover pair, with new 250v capacitor upgrade. These are 3 way designed to run a Heil air motion transformer, a midrange driver, and a dual 8 ohm (or single 4 ohm) woofer compliment. The selector pots have been cleaned as well. They are in great condition overall. I usually ship within 36 hrs of completed payment. Thank you for looking.

ESS (bookshelf model) aluminum bracket set. Fitment of this pair of original brackets (for the larger amt tweeters only) can be flush mount in a cabinet face, or baffle board if you desire. The complete kit available here is not custom made, it is original ESS equipment used in their large bookshelf type loudspeakers. It comes with thin rubber mounting gaskets, 4 L shaped aluminum brackets, and the original stud and nut assy. The brackets are pre drilled to accept all original ESS heil tweeters, with a pass-thru slot for the lead wires. They are also pre-drilled to accommodate face mounting via small-headed wood bolts or, hefty machine screws. I will ship USPS priority within 36 hrs of completed payment. Thank you for looking.

For purchase, a gorgeous set of ESS Heil 4ohm pulp woofers and original passives. The surrounds were just replaced with open cell polyether foam, and the pulp cones are very clean. The radiators are of closed cell design, original to early ESS 12 builds with full 3/4 backings and mass weights. Unique to ONLY early ESS builds, the woofers have 2.5 voice coils wound on anodized formers, unlike every other cast framed offerings from ESS which have 2 voice coils. Also unique to this pair, the backside of the cone base employs a dampener to reduce unwanted harmonic overtones in the upper bass region. Resistance measurements are 3.47 and 3.54 respectively. The rich sonics incorporated in the original lightweight but dense pulp cones, should be considered an essential upgrade to the overall sound of your ESS speakers. Utilized in several models of amt1(x), these are drop-in ready for models such as amt1a, 1b, 1c, 1d, and amt monitor, including all bookshelf variants of those models. These are factory original pulp 12 drivers by ESS of Sacramento, removed from amt1am tower loudspeakers. These drivers were optimized for the specific dividing networks and cabinet offerings that were available during the production years of amt1a, and early amt1am monitor tower builds. Modern replacements (from ESS) are not engineered to be coupled with amt drivers, nor your existing crossover networks where applicable. No testing or sampling has been performed with the new, generic off the shelf woofer drivers provided by ESS, currently. Packing will be very stout, expect these to arrive as advertised. UPS or FedEx will be the carrier, please let me know if you have a shipper preference. As with all of my listings of ESS equipment, if you are looking for parts from that era of long gone builds, feel free to inquire as i will assist with whatever parts i may have inventory of. I will ship within 48 hrs of completed payment. Thank you for looking.

For purchase is a set of ESS amt tweeters, removed from Monitor tower loudspeaker cabinets. Original Heil air motion drivers from ESS of Sacramento, with mounting kit (plates, bolts, pads). These are in great condition with clean diaphragms measuring 3.4 / 3.5 ohms. They will be packed with the utmost care, expect them to arrive as described. I usually ship within 36 hrs of completed payment. Thank you for looking.

For purchase, a gorgeous set of refurbished original ESS Heil amt 4 ohm woofers and passives. The surrounds were just replaced with open cell polyether foam in June 2023, and the bextrene cones are very clean. As most early ESS builds, these woofers have 2 voice coils wound on anodized aluminum formers. Resistance measurements are 3.4 and 3.3 ohms, respectively. They should be considered an essential replacement if your woofers are indeed compromised. Utilized in several models of amt1(x), these are drop-in ready for models such as amt1a, 1b, 1c, amt1am, amt monitor, and all bookshelf variants of those models. These are factory original bextrene 12 drivers by ESS of Sacramento, removed from amt1b loudspeakers, and the aluminum rings retrofitted with brand new discs. These drivers are optimized for the specific dividing networks and cabinet offerings that were available during the production years of amt1b and monitor tower builds, circa 1977 through 1980. Modern replacements (from ESS currently) are not engineered to be coupled with amt drivers, nor your existing crossover networks where applicable. No testing or sampling has been performed with the new, generic off the shelf woofer drivers provided by the new Los Angeles based ESS. Packing will be very stout, expect these to arrive as advertised. UPS or FedEx will be the carrier, please let me know if you have a shipper preference. As with all of my listings of ESS equipment, if you are looking for parts from that era of long gone builds, feel free to inquire as i will assist with whatever parts i may have inventory of. I usually ship within 48 hrs of completed payment. Thank you for looking.

ESS PS4A - 2 Weichen mit Anschlusstermina ! AMT Heil Monitor Air Motion Transformer System ! Beide OK technisch ! Bei einer ist die rote Plastikkappe am Kabelanschluss ab ! Originalbilder sind Bestandteil der Beschreibung ! Preisvorschlge auch gerne ! Lieferumfang wie in den Bildern ohne weiteres Zubehr !

For consideration is a pair of ESS 6.5 midrange/woofer pair removed from Rock Monitor tower loudspeakers. These restored midwoofers are drop-in original OEM drivers from amt3. These drivers are to be wired out of phase as dictated by the original dividing networks - brown wire to the positive / yellow wire to the negative. I typically ship within 36~48 hrs of completed payment, Fedex, USPS or UPS. Thank you for looking.

For purchase, a gorgeous pair of ESS Heil amt 4 ohm woofers. The surrounds were just replaced with open cell polyether foam in June 2023, and the bextrene cones are very clean. As most early ESS builds, these woofers have 2 voice coils wound on anodized aluminum formers. Resistance measurements are 3.4 and 3.3 ohms, respectively. They should be considered an essential replacement if your woofers are indeed compromised. Utilized in several models of amt1(x), these are drop-in ready for models such as amt1a, 1b, 1c, amt1am, amt monitor, and all bookshelf variants of those models. These are factory original bextrene 12 drivers by ESS of Sacramento, removed from amt1b loudspeakers. These drivers are optimized for the specific dividing networks and cabinet offerings that were available during the production years of amt1b and monitor tower builds, circa 1977 through 1980. Modern replacements (from ESS currently) are not engineered to be coupled with amt drivers, nor your existing crossover networks where applicable. No testing or sampling has been performed with the new, generic off the shelf woofer drivers provided by the new Los Angeles based ESS. Packing will be very stout, expect these to arrive as advertised. UPS or FedEx will be the carrier, please let me know if you have a shipper preference. As with all of my listings of ESS equipment, if you are looking for parts from that era of long gone builds, feel free to inquire as i will assist with whatever parts i may have inventory of. I usually ship within 48 hrs of completed payment. Thank you for looking.

Aus Nachlass - beide funktionsfhig abgebaut ( waren an Revox Anlage angeschlossen ) - 70er Jahre Traumstcke Stckpreis lag seinerseits bei 2400 DM Diaphragmen sind nicht beschdigt 1x Serial Nr 4800 1x Serial Nr 6489 Hhe: ca. 101 cm Breite: 40 cm Tiefe: 40 cm Gewicht jeweils ca. 50 kg Bedingt durch das Gewicht ist nur Abholung mglich - Versand definitiv ausgeschlossen ! Nicht mitbieten, wenn Sie mit den gemachten Angaben nicht einverstanden sind Der Artikel wird so angeboten, wie auf den Fotos zu ersehen ist Dies ist ein Privatverkauf - der Verkauf erfolgt unter Ausschlu jeder Gewhrleistung - somit keine Rcknahme, Umtausch oder Garantie Der Markenname ist Eigentum des Rechteinhabers und von mir nur verwendet, weil er Bestandteil des Produktes ist

Aus Nachlass - beide funktionsfhig abgebaut ( waren an Revox Anlage angeschlossen ) - 70er Jahre Diaphragmen sind nicht beschdigt 1x Serial Nr 4800 1x Serial Nr 6489 Hhe: ca. 101 cm Breite: 40 cm Tiefe: 40 cm Gewicht jeweils ca. 50 kg Bedingt durch das Gewicht ist nur Abholung mglich - Versand definitiv ausgeschlossen ! Nicht mitbieten, wenn Sie mit den gemachten Angaben nicht einverstanden sind Der Artikel wird so angeboten/versendet, wie auf den Fotos zu ersehen ist Dies ist ein Privatverkauf - der Verkauf erfolgt unter Ausschlu jeder Gewhrleistung - somit keine Rcknahme, Umtausch oder Garantie Der Markenname ist Eigentum des Rechteinhabers und von mir nur verwendet, weil er Bestandteil des Produktes ist

ESS PS4A - AMT Heil Monitor Air Motion Transformer System ! 2 Stck ! Einer defekt , er funktioniert aber ist leiser wie der andere . Membran verbogen ? Wollte nicht dran rumbasteln . One speaker is OK ! The other is quieter and has mechanical damage! Vielleicht geht er nach geradebiegen auch wieder ? Es sind nur noch 7 Originalschrauben vorhanden . Originalbilder sind Bestandteil der Beschreibung ! Preisvorschlge auch gerne ! Lieferumfang wie in den Bildern ohne weiteres Zubehr !

1 Vintage ESS Heil Air Motion AMT Crossover Monitor Speakers 70s Sn 2249 1 of 2 This is a working crossover This is for the one scene in the pictures serial number 2249 We have two available but if you just need one for a replacement here it is Were very communicative if you need any more pictures or have any questions please ask we pack well and ship quickly with tracking Thank you

Nice set - out of vintage pair of ESS AMT Speakers. All tested and work great. Have other parts to match if interested in another listing.

HERE IS A COMPLETE SET OF ESS AMT SPEAKERS WITH PASSIVES INCLUDED. ALL FRAMES ARE GREAT! WOOFER HAVE NEW SURROUNDS AND PASSIVES WORK BUT COULD BE RE-FOAMED. JUST THREW THEM ALL TOGETHER FOR ANY SPEAKER PROJECT WITH THE GREAT HEILS AND ALL AMT SKRS WILL FIT.12 APPLICATIONS WILL SHIP ONLY US 48 STATES DUE TO WEIGHT/SIZE.THANK YOU

Nice set - out of ESS AMT Speakers. All tested and work great. Have crossovers to match if interested in another listing.

Aus Nachlass - beide funktionsfhig abgebaut ( waren an Revox Anlage angeschlossen ) - 70er Jahre Diaphragmen sind nicht beschdigt 1x Serial Nr 4800 1x Serial Nr 6489 Hhe: ca. 101 cm Breite: 40 cm Tiefe: 40 cm Gewicht jeweils ca. 50 kg Bedingt durch das Gewicht ist nur Abholung mglich - Versand definitiv ausgeschlossen ! Nicht mitbieten, wenn Sie mit den gemachten Angaben nicht einverstanden sind Der Artikel wird so angeboten/versendet, wie auf den Fotos zu ersehen ist Dies ist ein Privatverkauf - der Verkauf erfolgt unter Ausschlu jeder Gewhrleistung - somit keine Rcknahme, Umtausch oder Garantie Der Markenname ist Eigentum des Rechteinhabers und von mir nur verwendet, weil er Bestandteil des Produktes ist

Nice set - out of ESS Rock Monitor Speakers. All worked great. Have heil tweets to match if interested in another listing.

Vintage Pair of ESS HEIL AMT 1aM Air Motion Transformer Monitor Speakers low serial number models of a highly sought after and scarce pair of monitor speakers these measure 101cm high, 40cm wide and 40cm deep both have had their tweeters removed for another project but otherwise intact these are really sought after and these larger monitor speakers are incredibly rare both have their fabric covers but one speakers top wooden frame is broken and needs repairing (see images) these are really big and heavy so will require collecting or buyer can arrange their own courier from Manchester M27 8UJ

Vintage Pair of ESS HEIL AMT 1aM Air Motion Transformer Monitor Speakers low serial number models of a highly sought after and scarce pair of monitor speakers these measure 101cm high, 40cm wide and 40cm deep both have had their tweeters removed for another project but otherwise intact these are really sought after and these larger monitor speakers are incredibly rare both have their fabric covers but one speakers top wooden frame is broken and needs repairing (see images) these are really big and heavy so will require collecting or buyer can arrange their own courier from Manchester M27 8UJ

Aus Nachlass - beide funktionsfhig abgebaut ( waren an Revox Anlage angeschlossen ) - 70er Jahre Diaphragmen sind nicht beschdigt 1x Serial Nr 4800 1x Serial Nr 6489 Hhe: ca. 101 cm Breite: 40 cm Tiefe: 40 cm Gewicht jeweils ca. 50 kg Bedingt durch das Gewicht ist nur Abholung mglich - Versand definitiv ausgeschlossen ! Nicht mitbieten, wenn Sie mit den gemachten Angaben nicht einverstanden sind Der Artikel wird so angeboten/versendet, wie auf den Fotos zu ersehen ist Dies ist ein Privatverkauf - der Verkauf erfolgt unter Ausschlu jeder Gewhrleistung - somit keine Rcknahme, Umtausch oder Garantie Der Markenname ist Eigentum des Rechteinhabers und von mir nur verwendet, weil er Bestandteil des Produktes ist

Aus Nachlass - beide funktionsfhig abgebaut ( waren an Revox Anlage angeschlossen ) - 70er Jahre Diaphragmen sind nicht beschdigt 1x Serial Nr 4800 1x Serial Nr 6489 Hhe: ca. 101 cm Breite: 40 cm Tiefe: 40 cm Gewicht jeweils ca. 50 kg Bedingt durch das Gewicht ist nur Abholung mglich - Versand definitiv ausgeschlossen ! Nicht mitbieten, wenn Sie mit den gemachten Angaben nicht einverstanden sind Der Artikel wird so angeboten/versendet, wie auf den Fotos zu ersehen ist Dies ist ein Privatverkauf - der Verkauf erfolgt unter Ausschlu jeder Gewhrleistung - somit keine Rcknahme, Umtausch oder Garantie Der Markenname ist Eigentum des Rechteinhabers und von mir nur verwendet, weil er Bestandteil des Produktes ist

Aus Nachlass - beide funktionsfhig abgebaut ( waren an Revox Anlage angeschlossen ) - 70er Jahre Diaphragmen sind nicht beschdigt 1x Serial Nr 4800 1x Serial Nr 6489 Hhe: ca. 101 cm Breite: 40 cm Tiefe: 40 cm Gewicht jeweils ca. 50 kg Bedingt durch das Gewicht ist nur Abholung mglich - Versand definitiv ausgeschlossen ! Nicht mitbieten, wenn Sie mit den gemachten Angaben nicht einverstanden sind Der Artikel wird so angeboten/versendet, wie auf den Fotos zu ersehen ist Dies ist ein Privatverkauf - der Verkauf erfolgt unter Ausschlu jeder Gewhrleistung - somit keine Rcknahme, Umtausch oder Garantie Der Markenname ist Eigentum des Rechteinhabers und von mir nur verwendet, weil er Bestandteil des Produktes ist