Tubetech HLT 2A

Stereo valve equalizer

A totally new kind of analog equalizer that combines variable high and low shelving eq and filters with an adjustable midrange T-Filter.

The midrange T-Filter “tilts” the entire spectrum around a selectable midrange frequency point. Frequencies above that point increase (or decrease) while frequencies below that point decrease (or increase). This unique topology, provides a powerful and uniquely efficient way to get beautiful-sounding overall equalization. As such, the Tube-Tech HLT-2A is destined to become a “go-to” equalizer in high-end mastering houses,smaller project studios, and everything in between.

Like all Tube-Tech processors, the stereo HLT-2A possesses a warmth and character that breathes life into a track and gives it an organic body that somehow manages to occupy real physical space inside a stereo mix,

However, the functionality of the HLT-2A is unique in the Tube-Tech line – and indeed in the world of analog processing. Users will find that the HLT-2A generates quick, intuitive results that can range from mild to extreme, and it sounds great on individual tracks or strapped across the drum bus or the mix bus.”

Technical Features

• Tube based push-pull amplifier
• Freq. resp. @ -3 dB: 5 Hz – 55 kHz
• Low noise: < -80 dBU @ 0 dB gain
• CMRR: > 60 dB @ 10 kHz
• All-tube active/passive EQ
• FILTERS:
• Low cut: 18, 25, 40, 60, 85 Hz, 6db/octave
• Low shelving: 18, 37, 80, 180, 370, 800 Hz. Gain: +/‑12dB
• High shelving: 1, 2, 5, 10, 15, 22 kHz Gain: +/‑12dB
• T.-filter: 0,5, 1, 2kHz. Gain: +4/-7 dB
• High cut: 12, 15, 18, 20, 25 kHz, 6db/octave
• Tracking between channels: +/-0,3 dB
• Input impedance: >10 kΩ
• Output impedance: < 60Ω
• Conductive plastic potentiometers
• In- and output are transformer balanced and fully floating