TL Audio Classic EQ2

TLAUDIO 23-71001 Details ^top

No other high end equaliser can offer the same degree of power and flexibility as the new TL Audio EQ-2. Like the C-1 and PA-1, the EQ-2 features a raven blue 6mm CNC milled aluminium front panel, General Electric US military specification valves and high retention gold plated ceramic valve bases, but we've also added two much-requested features: a peaking/shelving switch on the LF and HF bands, and drive/peak LEDs. The internal circuit design has also been refined quite significantly to produce an even fatter, smoother sounding equaliser.

The EQ-2 boasts two channels of fully parametric 4 band valve equalisation - which in conjunction with variable high and low cut filters offers unlimited control of any audio source. But that's not all - unlike many valve equalisers, the EQ-2 provides continuously variable frequency controls, so choice of frequency is not limited to switched selections. It also features a pair of the acclaimed TL Audio mic preamps (with phantom power), to enable high quality direct-to-tape microphone recording, and a pair of front panel auxiliary inputs enable a guitar or keyboard to directly access the EQ-2.

Another brilliant refinement is the "stereo mode" switch - when activated, the EQ controls of channel A automatically process the signal on channel B in an identical fashion - thus the audio signals through both channels have the same EQ applied to them: ideal for precise equalisation of stereo sources and overall mixes. Quite simply we believe that the EQ-2 is one of the best sounding and most versatile equalisers currently available!

The EQ-2 employs a total of six valve stages per channel: one in each of the four EQ bands, followed by a pair in the output stage. General Electric US military specification valves are used throughout, run from a stabilised 250v DC supply.

TL Audio EQ-2 - 2-Channel Tube Equalizer

Main Features

2 channels - each with 4 bands of fully parametric valve equalisation
LF band variable from 30Hz to 3kHz
LM band variable from 30Hz to 3kHz
HM band variable from 1kHz to 20kHz
HF band variable from 1kHz to 20kHz
Each band offers ±15dB of gain and variable Q between 0.5 and 5
Peak/Shelf switch on both LF & HF bands
EQ bypass switch on each channel & band
Continuously variable high and low cut filters (12dB/oct) with bypass switches
Low cut filter variable from 30Hz to 1kHz
High cut filter variable from 1kHz to 25kHz
Output level control giving +/-15dB trim
Drive and Peak LEDs indicate internal signal levels
Balanced microphone and line level inputs with variable gain control
Balanced line outputs, switchable for -10dB or +4dB operation
Line inputs and outputs duplicated on unbalanced jack connections
Front panel instrument inputs (for guitars / keyboards etc)
48v phantom power
Insert point on each channel (between mic preamp and EQ section)
Status LEDs on all function switches
Frequency response 20Hz to 40kHz +0 / -1dB

TLAUDIO 23-71001 Specs ^top

Mic Input: Impedance: >2k.
Gain range: +10 to +60dB.
Input Noise (EIN): -127dBu (22Hz-22kHz).
Max input level: +10dBu.
Balanced XLR connector.
Line Input: (Balanced)
Impedance: > 5k.
Gain range: -20dB to +30dB.
Max input level: +24 dBu.
Balanced XLR connector. (Unbalanced)
Impedance: > 5k.
Gain range: -10dB to +35dB .
Max input level: +24dBu.
Jack connector. Auxiliary Input: Impedance : 220k. Max gain : 40dB.
Max input level: +22dBu. Unbalanced jack connector.
Output: Balanced output impedance: 47. Max level: +26dBu.
Unbalanced output impedance: 47.
Max level: +20dBu into 10k.
Insert point: stereo jack, tip=send, ring=return.
Nominal level -2dBu.
Output impedance: 47,
Return input impedance: 10k.
Frequency response: 20Hz - 40kHz +0 / -1dB.
Dynamic Range: >100dB.
Power supply: 110-120v or 220-240v AC.
Power consumption: 35VA typical.
Dimensions: 483 x 250 x 132mm (19" 3U).
Weight: 9kg

TLAUDIO 23-71001 Documentation ^top

E2 Manual (pdf)