User manual TL AUDIO EQ-2

[. . . ] The input is suitable for a variety of sources, including guitar, acoustic pickup and keyboard. The input section also provides continuously variable, individually switchable, high and low pass filters to tailor the frequency response to eliminate unwanted LF or HF noise from the input source. An insertion point is provided immediately after the input stage, to allow a compressor or other processor to be used as required. The insertion point is unbalanced, at a nominal operating level of -2dBu. [. . . ] A switch on the rear panel allows the output to be matched to equipment at a nominal operating level of +4dBu or -10dBu. Most professional equipment requires +4dBu (approximately 1. 2V rms), but some small mixing consoles, portable tape recorders or domestic audio equipment require -10dBu (approximately 225mV rms). The switch should be set to the position which results in the best signal to noise ratio, whilst preserving sufficient headroom. An unbalanced line output is provided for each channel, on a 0. 25" mono jack socket. - Tip = Signal Phase ("+" or "hot"). - Screen = Ground. The unit generates a small amount of heat internally, mainly due to the valve heaters. This heat should be allowed to dissipate by convection through the grill in the front panel, which must not be obstructed. Do not locate the EQ unit where it will be subject to external heating, for example, in the hot air flow from a power amplifier or on a radiator. The rear panel connectors are identified in fig. 2. OPERATION. Front Panel. Ensure that the correct input connector, mic or line, is being used and that the front panel switch is set to the appropriate position. Note that both mic and line inputs may be connected at the same time, but only one is selected. +48V phantom power is available at the mic socket, selected by a front switch and signalled by a red LED. Phantom power should only be used in conjunction with suitable microphones. CAUTION: Operation of the phantom power switch, or plugging a microphone in with phantom power applied, may cause a click or thump in your loudspeakers. To prevent this happening, ensure that the system gain is set to minimum (e. g. on your mixing console fader or power amplifier), before operating the switch or plugging in a microphone. If the gain required is not known, set the control to minimum with the EQ by-passed, and gradually increase the gain until the required output level is achieved. Unity gain (0dB) is obtained from the line input at the centre-detent of the gain control. The front panel auxiliary input socket accepts signals from guitar, keyboard, and high impedance pickups or microphones. Plugging a jack plug into the auxiliary socket automatically disconnects the channel mic or line inputs, and replaces them with the aux input. The sensitivity of the Aux input is controlled by the mic/line switch. In the line position, low gain is selected, suitable for most keyboards or active guitars, whilst in the mic position, the gain is increased to match passive guitars and hi-z microphones or pickups. [. . . ] oro 'gp'l- '0+ :ZH)IOt O}ZHOI :3Soods3. 1 A303nb3. l. !l l;)UU~':) J~ J;)A!lp }nd. }no ;)~mSOft\t~ SRld'J~IY 03 J~ ;)~~S ~A~A ;)UO ~~u~Jrn 's:)PO!J:) s~ ~ LXV'lI/£8J;)3: X!S :S3AIWA '(P;)':)u~~q)ngp9'l+ I~~I wnw~ 1~~1 Itrn!Ul°U ngpOI- JOngpt+ O} ~lq~q':)}!/I:\S I;)u~d J~J 'S};)){':)Os ){':)~f~:)U~I~qun snld S"lIlX P;)':)u~l~g :s}nd}no ':)~U~Jgp SI-/+ ) :1°. l}ooJ 13A3'J. l3}S~ I ~ :;; SERVICE Should the equaliser require service, it must be taken or posted to an authorised dealer with a description of the fault. Please retain the original packing for possible future use, and ensure the unit is suitably protected during transit. The manufacturer cannot accept responsibility for damage caused during transportation. The equaliser is supported by a limited warranty for a period of one year from the date of purchase. [. . . ]