a sleeker design. The HX/HS series was the first to use AWM (Advance Wave Memory) "sampling" technology for both voices and rhythms, and also featured 16-operator FM voices. AWM Voice expansion is also possible via sound packs. Smaller version for Electone classes were also available, named HK-10 and HA-1. HK-10 had the same design as the HC, but with bigger cover. The HA-1 was a chord organ. The HA-1 was rarely seen today, even though it was manufactured from 1988 to 2001. The original price for HS-8 was ¥835,000, while the HX-1 costs around ¥3,321,000. 1991 — EL series This series included an attached Music Disk Recorder which enabled players to record their registrations and performances, thus eliminating the need for extensive programming before each performance. The EL series introduced new synthesisers, filtering, and expression technologies that made instrument voices on the Electone even more realistic. Voice technology continued to be based on AWM and FM technologies. The EL-90 costs around ¥1,250,000, while the ELX-1 costs twice the EL-90, around ¥2,700,000. 1996 — AR series The AR100, and its junior model the AR80 (released in 1997), were designed for the US and European market, and reverted to the more traditional cabinet design. Using purely AWM voices, the most distinctive feature of the series is its 384 preset registrations. A huge increase compared to only 5 presets on the EL series. 1998 — EL-900 (Second version of EL series) Visually similar to the EL90 model from 1991, but with more voices, rhythms and effects, the most significant change of this model is the inclusion of VA (Virtual Acoustic) voices. These voices, or preset sounds, do not use sampling technology but is instead based on modeling. Thus providing a different level of authenticity. 2000 — ELX-1m Same as before, visually similar to the EL90 model from 1991, but with more voices, rhythms and effects, the most significant change of this model is the inclusion of VA (Virtual Acoustic) voices. These voices, or preset sounds, do not use sampling technology but is instead based on modeling. Thus providing a different level of authenticity. 2004 — Stagea Series The brand new Electone line-up series, adding around 415 voices and sounds in the standard model (ELS-01), and including the "articulation voices". The models only sold to the Asia Pacific, such as Southeast Asia and East Asia, due to less demand on Europe and America. 2005