LIMITED WARRANTY This product is warranted to the original consumer purchaser to be free from defects in materials and workmanship under normal installation, use and service for a period of one (1) year from the date of purchase as shown on the purchaser's receipt. The obligation of Rolls Corporation under this warranty shall be limited to repair or replacement (at our option), during the warranty period of any part which proves defective in material or workmanship under normal installation, use and service, provided the product is returned to Rolls Corporation, TRANSPORTATION CHARGES PREPAID. Products returned to us or to an authorized Service Center must be accompanied by a copy of the purchase receipt. In the absence of such purchase receipt, the warranty period shall be one (1) year from the date of manufacture. This warranty shall be invalid if the product is damaged as a result of defacement, misuse, abuse, neglect, accident, destruction or alteration of the serial number, improper electrical voltages or currents, repair, alteration or maintenance by any person or party other than our own service facility or an authorized Service Center, or any use violative of instructions furnished by us. This one-year warranty is in lieu of all expressed warranties, obligations or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR LIABILITIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL BE LIMITED IN DURATION TO THE ONE YEAR DURATION OF THIS WRITTEN LIMITED WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, WHATSOEVER. Some states do not allow the exclusion or limitation of special, incidental or consequential damages so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. ADi6 dB MAX Direct Box dB MAX Active Direct Box EL ALL PAR -22 ADi6 + 3 2 OUTPUT 1 INPUTS -12 -8 -3 ADi6 dB MAX Active Direct Box · Uses 9-Volt or standard phantom power for power supply · Ground Lift for "hum" reduction · Variable Attenuation for precise level control · Parallel or Mixed input jacks The ADi6 is an active direct box for converting a high impedance signal such as a direct out from a bass amplifier, to a low impedance signal such as a snake input and a mixer's microphone input. The Ground Lift is provided to reduce possible ground hum or buzz, a variable Attenuation control provides precise level adjustement, and the unit may be powered via 9 volt battery, or phantom power from a mixer. Rolls Corporation Salt Lake City, UT 1/01 GND LIFT -40 PARALLEL MIXED dB 0 ON LIFTED OFF/PHAN SPECIFICATIONS Input Level: Output Level: Bandwidth: S/N Ratio: Jacks: Controls: Power: Size: -10 to +40 dB unbalanced -10 to +2 dB balanced XLR Male (pin 2 +) 1 Hz to 50 kHz 100 dB (2) 1/4" phone, (1) XLR male Attenuation Control, Ground Lift switch, Input Parallel/Mix switch, Battery switch 9 volt battery, or 9 - 48 VDC Phantom Power 2" x 3.5" x 5" 8 Owners Manual Congratulations and thank you for your purchase of the ADi6 dB MAX direct box. The ADi6 is a durable and cost effective unit designed to take a high impedance line-level or speaker level audio signal and convert that signal to low impedance. DESCRIPTION INPUT jacks: Two 1/ 4" Tip Sleeve unbalanced jacks for connection to the ADi6 high impedance 3 Active Direct Box signal to be bal2 + anced. OUTPUT 1 INPUT switch: Selects Parallel input INPUTS -8 -3 -12 or Mixed input. In Parallel mode, the -22 tips of the two input jacks are shorted -40 GND LIFT dB 0 together providing PARALLEL ON you with a "passLIFTED OFF/PHAN MIXED through" jack. In Mixed mode, a series of resistors are inserted in line, allowing a stereo signal to be mixed to mono. ATTENUATION control: Adjusts the input level to the ADi6. Fully clockwise, the ADi6 does not attenuate the incoming signal. As the control is turned counterclockwise, the input signal is attenuated by the indicated amount. GROUND LIFT switch: When pressed in, the chassis ground is connected to pin 1 of the XLR Output. When the switch is out, the chassis ground is disconnected. BATTERY switch: When pressed in, the ADi6 will be powered via a 9 volt battery, the ACTIVE LED will light. When out, the unit is powered via phantom power. OUTPUT jack: Balanced XLR jack for connecting to the input of a mixer. dB MAX Active Direct Box LLEL PARA ADi6 + 3 2 OUTPUT 1 INPUTS -12 -8 -3 dB MAX A PAR LLE -22 GND LIFT -40 PARALLEL MIXED dB 0 ON LIFTED OFF/PHAN This example shows the ADi6 connected to an instrument. The INPUT switch is in, the unused 1/4" jack may be connected to an instrument tuner. The ATTENUATION is at 0 dB, and the GROUND LIFT is in meaning the chassis ground is connected to pin 1 of To Mixer the XLR jack. If the unit is to be Microphone powered via 9 volt battery, the Input BATTERY switch should be in, if the unit is powered via phantom power from the mixer, the BATTERY switch should be out. STATION CALL 1/9 2/10 3/11 4/12 STER/ MON AM FM TUNE + QUARTZ DIGITAL SYNTHESIZED TUNER 8 ST AUTO FM MW MUTE MHz kHz 8 PARALLEL MIXED LIFTED 8 BATTERY: Cover for 9 volt battery. 5 OPERATION In order for the ADi6 to function via phantom power, it must be connected to a microphone phantom power source with a balanced XLR cord. The input may be anything from a speaker source such as a music amplifier, VCR or projector, to an instrument such as a guitar or High-impedance microphone. Press the INPUT switch in to short the two input jacks together allowing for signal "pass-through", or leave the switch out to mix stereo signals together. Set the ATTENUATION control and GROUND LIFT switch for best signal level and lowest noise. Press the BATTERY switch in for 9 volt battery operation, or set the switch out for operation via phantom power. Q1 R1 10K SW 1B DPDT R2 10K 2N 5087 J2 P H O N E 1 /4 ATTENUATOR P100K .X P1 R3 100K SW 2A DPDT GROUND L I. T R6 C1 .1 1M 2N 5087 D1 LDRR R9 1M R10 10K C5 .1 5 3 J3 X LR JA C K M 4 6 PARALLEL 2 R O L L S C O R P O R A T IO N 5968 S o 350 W est S a lt L a k e C ity , U T 8 4 1 0 7 ADi6 dB MAX ACTIVE DI 1 3 1 2 L FREQUENCY PRESET 5/13 6/14 7/15 8/16 MUTE SET TUNE PRESET RS78b dB MAX Active Direct Box LLEL PARA -22 -40 ADi6 + 3 2 OUTPUT 1 INPUTS -12 -8 -3 To Mixer Microphone Input GND LIFT - dB 0 ON OFF/PHAN This example shows the mixing capabilities of the ADi6. A stereo source is shown connected to both 1/4" inputs, and the INPUT switch is out. This mixes the right and left signals to mono, and balances the combined signal to be sent to a mixer. The ATTENUATION control, GROUND LIFT switch, and BATTERY switch should all be set for proper operation. SCHEMATIC SW 3B BT1 +9V 6 4 R5 4 .7 K D5 1N 4148 R4 3 .3 K Q2 D4 1N 4148 R7 4 .7 K C3 47U D3 D2 C2 47U R11 100K 1N 4148 1N 4148 R8 3 .3 K R12 100K DPDT BATTERY J1 P H O N E 1 /4 Size Document Number Ba Date: 30-Jan-2001 A D I6 .S C H Rev: A Sheet 1 of 1 ...