Altec 1650 Active Equalizer, Vintage Green Rack Mount 28-Band EQ, High/Low Pass For Sale

This vintage Altec EQ still works, and sounds wonderful. Beyond just boosting and/or attenuating, it\'s Active presence adds depth and color to your signal, an irresistable special vintage mojo. The sliders have all been cleaned with DeOxit, and function smoothly with no unwanted noise.
Key Features:Acousta-Voicette Technology:

• Utilizes special filters with sharp shoulders for a narrow bandwidth of 1/3 octave.
• Allows precise adjustment of the audio frequency band according to room acoustics and equipment characteristics.

28-Band Active Filter:

• Monaural format with 28-element active filter.
• Provides fine-tuned control over audio frequencies from 20 Hz to 20 kHz with a ±1 dB accuracy.

Versatile Connectivity:

• Supports both balanced and unbalanced inputs and outputs.
• Input impedance: 600/15k Ω (unbalanced), 15/600/15k Ω (balanced).

Enhanced Signal Handling:

• Maximum insertion loss of -15dB at the center frequency.
• Low noise level of -90dBm at +21 dBm and -100dBm at +1 dBm.

User-Friendly Design:

• Rack-mountable form factor for easy integration into your audio setup.
• Designed for mono applications, ideal for various audio systems and setups.

Specifications:

• Method: Active equalizer
• Format: Monaural, 1/3 octave band, 28-element active filter
• Frequency Characteristic: 20 Hz to 20 kHz ± 1 dB
• Number of Filters: Mono, 28 pieces
• Maximum Insertion Loss: -15dB at center frequency
• Input Level: +21dB or +1dB
• Output Level: +21 dBm or +1 dBm (600/150 Ω balanced output)
• Input Impedance: Unbalanced: 600/15k Ω, Balanced: 15/600/15k Ω
• Noise Level: -90dBm at +21 dBm, -100dBm at +1 dBm
• Power Supply Voltage: 120 VAC, 50Hz/60Hz
• Power Consumption: 5W