Heritage Audio Tubesessor

The Heritage Audio Tubesessor is a rack-mountable optical tube compressor with a VU meter, up to +30 dB of gain, sidechain functionality, adjustable attack and release.

The Tubesessor features four tube saturation modes: classic, mild, medium, and hot. These modes are effective not only for vocals and bass but also for guitars or drums (especially when working with a linked stereo pair). In addition to its core functions, the compressor has five selectable sidechain filters: 80 Hz, 160 Hz, 1 kHz, 3 kHz, and 5 kHz.

Tubesessor Features

• Mono optical compressor
• Tube amplification
• Tubes: 1 x NOS CK5755, 1x 12BH7A
• Open, transparent, and linear character
• Natural-sounding compression
• Versatile tone from clean to thick and dirty
• Light limiting function at ratios up to 10:1
• 2-stage automatic Attack and Release
• 5-stage selectable Sidechain filter: 80/160Hz highpass, 1/3kHz bandpass, 5kHz highpass
• Input and output transformers replicating classic AMI types
• Stereo link function
• Tube and transformer feedback saturation with 4 modes (Classic, Mild, Warm, Hot)
• True bypass

Tubesessor Specifications

• Gain: 30 dB
• Input Impedance: 600 Ω
• Output Impedance: 20 Ω
• Frequency Response: 20 Hz to 20 kHz ± 0.15 dB
• Signal To Noise Ratio: >94 dB
• Noise Floor: -75 dBu ± 1 dBu
• TDH+N @ 1 kHz, -6 dBu input with full gain and 24 dBu output: ≤ 1%
• Dimensions (W x H x L): 482 mm x 134 mm (3 Rack units) x 153 mm
• Weight: 3.643 Kg.