Apogee family

If you need repairs/advice on your speakers, I can help, I will also buy damaged/unwanted Apogee full range ribbons you wish to sell also visit

For other countries, go to the repair section on the left or visit the official website

Official manufacturers website

Also check out the Apogee Acoustics Forum, this is a discussion group that anyone can join
Apogee forum

Apogee Acoustics chronological history

1981 Apogee Acoustics Incorporated founded by Jason Bloom and Leo Spiegel
1982 The Full Range also known as "The Apogee" is the first full ribbon speaker released
1985 The legendary Scintilla is released to critical acclaim around the world
1986 Release of the original Duetta, a smaller and more importantly easier to drive Apogee
1987 Release of the Caliper, the smallest Apogee so far, and the revised Duetta II
1988 The Diva, Apogees second 3 way with a true ribbon tweeter enters production, late 1988 saw the release of Duetta Signature which came to be Apogees most popular speaker
1989 The revised Caliper Signature is released
1990 Apogees smallest and cheapest speaker the Stage is released, the first with etched ribbon components
1991 The Centaurus range, Centaur Minor, Centaur and Centaur Major are released, Apogees first hybrid range ribbon/cone speakers
1992 Release of the Grand series, Mini Grand, Studio Grand, and Grand the companies statement speaker
1994 The Slant range, replacement range for the Centaurus are released
1998 Home theatre LCR (Perseus), Ribbon Monitor, Column and In-wall speakers released, ADS Technology Inc purchase Apogee
1999 ADS closes Apogee Acoustics as it is considered not commercially viable, leaving owners without spares support, Matt Carnicelli starts the Apogee Acoustics Users Group (Stereophile link)
2001 Graeme "Graz" Keet reforms Apogee Acoustic's and starts supplying revised upgraded spares for the majority of the Apogee line improving the original performance using proprietary CNC ribbon machining equipment
2003 Establishment of Apogee Acoustic's local service centres commences. Operators trained by Graz to repair clients speakers with exclusive agreements to use Graz revised Apogee Acoustic's parts, and installation procedures within their regions. First in the UK, then Switzerland, the Netherlands, East Coast USA, Germany, West Coast USA, ongoing
2004 Apogee Classic speaker build service offered, and "special products" new reference Apogee Acoustic's Definitive speaker announced, taking the classic Apogee visual appeal, but adding massive structural rigidity and considerably higher efficiency. Late 2004 sees the introduction of KLM2 & XLM2 series Mid/tweeter ribbon parts available for Apogee speaker owners worldwide, for either home or installer installation
2006 Ability to use the www.apogeeacoustics.com domain granted by title holders for the first time. Introduction of the new Apogee Acoustic's Synergy loudspeaker at the London Park Inn show (22-24th September 2006) covered widely by the audio press (Stereophile link), many clients past and present attend the show from all over Europe and the world (Picture)
2007 Apogee bass restorations policy changed so all installations will be carried out exclusively by Apogee Acoustic's (Graz) trained installers to establish quality control befitting the repair
2010 New Apogee Acoustic's KLM5 series Mid/tweeter ribbon parts announced for classic Apogee speaker owners, home installation (excluding 3 element type Caliper/Duetta/Diva) or installer installation