TK Audio
TK Audio TEQ Extended Baxandall Mastering EQ with M/S
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TK Audio TEQ is an extended two-band mastering and mix bus EQ with M/S, based on the classic 1950s Baxandall circuit. It keeps the smooth, natural sound of that topology but adds far more frequencies, finer control resolution and filters that this type of EQ usually lacks.
0.25 dB resolution where every move counts
In mastering, the difference between a good move and an overcooked one is often half a dB. TEQ starts with 0.25 dB steps up to 1 dB, continues in 0.5 dB steps up to 4 dB, and the Ex switch extends the range to +/-8 dB when material needs more. Each band offers 10 frequencies, 30 to 720 Hz and 1 to 24 kHz, with shelf or peak and a low Q of 0.5 for gentle tone shaping. Frequencies are selected by relays and the audio switches have gold contacts, so stepped settings are fully repeatable.
Filters and M/S instead of extra boxes
The high-pass filter with six frequencies from 20 to 60 Hz removes rumble, mud and bass build-up, while the low-pass filter from 12 to 27 kHz smooths a harsh top end. The built-in M/S function lets you EQ mid and sides separately, and the Cue switch lets you monitor L/R or M/S. There are no electrolytic capacitors in the audio path and the bandwidth is extra wide.
KEY FEATURES
- Baxandall circuit, two bands with 10 frequencies each
- Each band switchable shelf / peak, Q 0.5
- Cut/boost from 0.25 dB steps, Ex switch up to +/-8 dB
- HPF and LPF with six frequencies each
- M/S function and Cue switch for L/R or M/S
- All rotary controls stepped
- Relay-switched frequencies, gold contact switches
- No electrolytic capacitors in the audio path
TECHNICAL SPECIFICATIONS
- Low band: 30, 45, 60, 90, 120, 180, 240, 360, 480, 720 Hz
- High band: 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24 kHz
- Cut/boost: +/-0.25 to 4 dB, up to +/-8 dB with Ex
- HPF: 20, 25, 30, 40, 50, 60 Hz, 12 dB/oct
- LPF: 12, 14, 16, 18, 22, 27 kHz, 12 dB/oct
- Input impedance: 20 kOhm, output impedance: 68 Ohm
- Max input and output level: +27 dBu
- Frequency response: 20 Hz to 80 kHz +/-0.1 dB
- THD+N: 0.0005%, S/N: 95 dB, dynamic range: 122 dB
- Power: 115 V or 230 V, 14 VA consumption
