Rare collectible item! Without power suply! I checked as best I could on most of the channels, the LED level indicator is continuously lit up to the green level (I don't know if that's normal). Alesis 1622 Professional 16-Channel Analog Mixing Console For sale is an Alesis 1622 Professional Analog Mixing Console, a classic 16-channel studio mixer from the golden era of affordable professional recording equipment. Designed for recording studios, live sound, and keyboard rigs, the 1622 offers 8 microphone preamps, 16 input channels, 6 auxiliary sends, 8 direct outputs, and flexible routing options, making it ideal for multitrack recording and live mixing. Known for its warm analog sound, low-noise performance, and dependable construction, the Alesis 1622 remains a practical choice for musicians, recording enthusiasts, and collectors of vintage studio gear. Features 16-channel analog mixer 8 balanced XLR microphone inputs 16 line inputs 8 direct outputs 6 auxiliary sends Channel inserts Stereo master outputs 2-band EQ on every channel Dual LED level meters Collector's Rarity ☆☆☆☆☆☆☆☆ (8/10) The Alesis 1622 is a respected vintage analog mixer that helped define the project studio market in the early 1990s. Its flexible routing, reliable performance, and classic analog sound continue to make it attractive to musicians, home studio owners, and collectors. Description The Alesis 1622 is a professional 16-channel, 2-bus analog mixing console introduced around 1990. It was designed for recording studios, live sound, post-production, and keyboard setups. At the time, it stood out by offering features normally found on much more expensive consoles, including direct outputs, channel inserts, six auxiliary sends, and eight microphone preamps. The mixer was built around Alesis' Integrated Monolithic Surface technology, which aimed to reduce noise and crosstalk while keeping manufacturing costs low. It became popular in home and project studios during the early 1990s. Main Specifications Manufacturer: Alesis Model: 1622 Production: Around 1990–1993 Made in: USA (design), assembled for Alesis Type: 16-channel analog mixing console Configuration: 16 input channels / 2-bus stereo Microphone inputs: 8 balanced XLR Line inputs: 16 × ¼-inch Direct outputs: 8 Channel inserts: 8 Auxiliary sends: 6 (2 pre-fader, 4 post-fader) Stereo returns: 8 Subgroups: 2 Master outputs: Stereo Frequency response: 20 Hz – 20 kHz (+0/-2 dB) THD: Better than 0.015% Maximum output level: +17 dBV Power supply: External 9 VAC Weight: Approximately 6.4 kg (14 lb) Features 16-channel analog mixer 8 microphone preamps 6 auxiliary sends 8 direct outputs for multitrack recording Individual channel inserts 2-band EQ on every channel Mute and Solo on each channel Dual 15-segment LED level meters Headphone output Switchable +4 dBu / –10 dBV operating level Sound Quality The Alesis 1622 is known for: Warm, clean analog sound Low background noise for its era Good microphone preamps Flexible routing for studio recording Reliable construction Excellent keyboard mixer capabilities Although it lacks the fully parametric EQ found on higher-end studio consoles from brands like Soundcraft, Allen & Heath, or Mackie, it remains a capable mixer for vintage recording setups and live applications. How Rare Is It? Collector's Rarity: ☆☆☆☆☆☆☆☆ (8/10) The Alesis 1622 is considered fairly uncommon today because: It was produced for only a few years. Many units were used extensively in recording studios. While it is not considered an ultra-rare collector's item, it is appreciated by enthusiasts looking for authentic early-1990s analog studio equipment.