TL Audio 5013 - Dual Valve 4-Band Parametric Equalizer

The 5013 from TL Audio is a two channel, tube based, four-band fully parametric equalizer that is part of the Ivory 2 Series. This series consists of a range of hybrid tube signal processors, which utilize low noise solid state electronics in conjunction with tube circuitry to produce a very high quality signal path with a tube audio character. The unit provides two tube stages per channel, utilizing a Sovtek ECC83/12AX7A twin triode valve. One stage is positioned pre the EQ filters while the other is post EQ, with both being run at 150VDC from a fully stabilized power supply.

Each band on both channels provides variable frequency, gain and Q (bandwidth.) Additionally, the low and high frequency sections can be set for either shelving or peaking response. Pulling the Q control knob "out" converts these sections to a shelving type equalizer. A "FAT" contour switch provides a subtle low and high frequency lift while at the same time reducing the gain in the mid range, providing a perceptible increase in warmth without altering the overall signal volume.

Front panel instrument connectors eliminate the need for direct injection boxes. These inputs are suitable for electric guitars, bass guitars, acoustic pickups, synthesizers, samplers and drum machines. The instrument input level is controlled by the unit's input gain controls. As with the input level switch, an output operating level switch is located on the rear panel allowing either +4dBu or +18dBu for balanced connections and -10dBu or +4dBu for unbalanced connections, thus matching both outputs with a wide variety of equipment.