User manual ART TUBE CHANNEL

[. . . ] TUBE CHANNEL USER'S MANUAL FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 OVERVIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 WHY USE AN EXTERNAL PROCESSING CHANNEL?3 DESIGN NOTES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Now adjust the control (either lower or higher) until you have the amount of compression you desire. Use the Gain Reduction meter as a visual guide to the amount of compression applied. Compressor Output Level Control (inner Control) The Compressor Output level control sets the output level from the compressor circuit. Typically, the output level of a compressor is used to add gain to compensate for the amount of compression applied to a signal. The output level is set to achieve unity gain (no change in level when compressor is active or bypassed). See Compressor Bypass Switch for more details on achieving unity gain. 10 When the control is fully counter-clockwise, the output is attenuated by ­20dB. Turning the control clockwise increases the level to a maximum of +20dB of gain. While you can use the compressor to add gain to a signal, it is better to add gain before the compressor for the best signal to noise ratio. If you want to use the compressor to add more gain, refer to the output level VU meter, or the meter on your recorder or mixer to make sure you won't clip the next piece of equipment in the chain. Clip Indicator The Clip LED is located in the equalizer circuit. It will illuminate 6dB before the headroom of the circuit is exceeded. When this Clip indicator lights, the level into the equalizer is too high. Turn down either the Preamp Output control, the Compressor Output control or the output level of the device plugged into the compressor return insert point. Equalizer Circuit The equalizer circuit in the Tube Channel is a tube--based, semiparametric, four-band equalizer. Each of the bands overlap, giving you the ultimate in flexibility. The "Q" (or bandwidth) of each of the filters is purposely wide to provide a very musical sound. Low Frequency Control The Low Frequency control adjusts a shelving filter with a selectable corner frequency of either 40Hz or 120Hz. The low shelving filter affects all frequencies below the corner frequency when applying boost or cut. In other words, cutting at 40Hz also cuts 30Hz, 20Hz, etc. The Low Frequency control has as range of +/- 12dB. Two ranges are selected with the Low Shift Switch: 40Hz or 120Hz. 40Hz is great for enhancing sub-low frequencies such as those in bass guitars and kick drums. Cutting 40Hz can also help to "clean up" mixes that sound muddy or "loose" in the low end. 120Hz is generally the low-end for vocals, guitars and toms. Boosting 120Hz can add "weight" or "beef" to a week vocal and cutting it can "thin out" a signal that takes up too much room in the low end. Low Shift Switch The Low Shift switch selects the corner frequency of the Low Frequency control. In the "out" position the corner is 40Hz. [. . . ] Please realize that unauthorized alterations to the Tube Channel will result in voiding the warranty. 20 %/2&. ', $*5$07XEH&KDQQHO 6(1' &RPSUHVVRU %<3$66 3UH$PS 287 5(7851 *$, 1 3UH$PS&RPSUHVVRU , QVHUW /223 )DVW $XWR &203 %<3$66 , QSXW81EDO $FWLYH %\SDVV 6ORSH 7XEH &OQ :DUP &OLS %DODQFHG , 1 1RUPDO G% G% 6SHHG *DLQ 9 &RPSU /LPLW 9DFWURO 3+$1720 'HWHFWRU 7+5(6+2/' &RPS 287 2II Y 7XEH 'ULYH *DLQ 5HGXFWLRQ 6(1' (4 %<3$66 &RPSUHVVRU(4 , QVHUW /223 &/, 3 '& $FWLYH %\SDVV 9 287387 2XWSXW81EDO 5(7851 %DQG (4 , 1 . 287 7XEH . +] 3+$6( +] +] 6KLIW /2: 6KLIW 6KLIW )UHT )UHT /R0, ' +L0, ' +, *+ 6KLIW [ [ . +] 1RUPDO , QYHUW (4 %<3$66 %DODQFHG 287 0RGHO A R T Tube Channel Specifications Dimensions Weight Maximum Gain XLR to XLR ¼" to ¼" Phantom Power Compression Ratio Attack Time Release Time EQ Frequency Bands: Low Shelf: High Shelf: Low-Mid Sweepable: High-Mid Sweepable: "Q" Gain/Frequency Band: Equivalent Input Noise Dynamic Range Impedance Output Impedance Maximum Input Level Maximum Output Level CMRR THD Tubes Power Requirements 5. 25"D x 19"W x 1. 65"H 8. 0 lb. 81dB 63dB +48v DC (switchable) 2. 3:1 (comp)/ 6:1 (lim) 6. 5ms 200ms (fast), 70ms-1sec (auto) 40Hz/120Hz Selectable 6KHz/18KHz Selectable 20Hz to 200Hz/ 200Hz to 2KHz 200Hz to 2KHz/ 2KHz to 20KHz 1. 1 +/- 12dB -129dBu (XLR to XLR, `A' wghtd) >90dB (no weighting)Input 1. 67k ohms (XLR), 1M ohm (¼") 600 ohms (XLR), 300 ohms (¼") +15dBu (XLR), +21dBu (¼") +27dBu (XLR), +22dBu (¼") 90dB (typical) <0. 1% (typical) Two Hand-Selected Tubes (12AX7A/12AT7) 100-125 VAC, 25W (Export units configured for country of destination) A R T retains a policy of constant product improvement. A R T reserves the right to make changes in design or make additions to or improvements upon this product without any obligation to install the same on products previously manufactured. [. . . ]