Mark Bass Super Pro DI Box User manual

owner’s manual
v. 8.may.2009

02
1. IMPORTANT SAFETY INSTRUCTIONS
1) Read these instructions;
2) Keep these instructions;
3) Heed all warnings;
4) Follow all instructions;
5) Do not use this apparatus near water;
6) Clean only with dry cloth;
7) Install in accordance with the manufacturer’s instructions;
8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including ampliers) that produce heat;
9) Only use attachments/accessories specied by the manufacturer;
10) Unplug this apparatus during lightning storms or when unused for long periods of time;
11) Refer all servicing to qualied service personnel. Servicing is required when the apparatus has been damaged in any way, such as when liquid has been spilled or objects have fallen into the apparatus, or when the apparatus has been
exposed to rain or moisture, does not operate normally, or has been dropped;
12) “Warning: to reduce the risk of re or electric shock, do not expose this apparatus to rain or moisture; and objects lled with liquids, such as vases, should not be placed on this apparatus”;
1. PRÉCAUTIONS D’EMPLOI
1) Lire ces instructions;
2) Conserver ces instructions;
3) Suivre tous les conseils d’utilisations;
4) Suivre toutes les instructions;
5) Ne pas utiliser cet appareil au bord de l’eau;
6) Nettoyer uniquement avec un chion humide;
7) Installer conformément aux instructions du fabricant;
8) Ne pas installer l’appareil près d’une source de chaleur tel qu’un radiateur, un fourneau, ou bien un autre appareil qui produit de la chaleur;
9) Utiliser uniquement les accessoires recommendés par le fabricant;
10) Ne pas branché l’appareil en cas d’orage accompagné d’éclairs. Le débrancher en cas de non utilisation prolongée;
11) S’adresser à un service assistance agréé si l’appareil a subi des dommages, si un liquide a été renversé sur l’appareil ou bien si un object est tombé dans l’appareil,
si ce dernier a été exposé à la pluie ou à l’humidité, s’il ne fonctionne pas correctement ou s’il est tombé;
12) “Avertissant: pour réduire le risque du feu ou de décharge électrique, n’exposez pas cet appareil à la pluie ou l’humidité et les objets remplis de liquides; tels que des vases, ne devraient pas être placés sur cet appareil”;
MORE INFORMATION
For warranty and service information, please contact your local Markbass distributor (contact information available at www.markbass.it). For more technical information, please visit us at www.markbass.it and ll out the form on the
Contact Us page. We hope you enjoy your direct box and use it to make great music!
“The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating
and maintenance (servicing) instructions in the literature accompanying the product.”

03
2. CONTENTS
INTRODUCTION 3
FUNCTION OVERVIEW 4
CONNECTIONS 4
TECHNICAL SPECS 4
CONNECTION EXAMPLES 5
BLOCK DIAGRAM 5
Congratulations on your purchase of the Markbass Super Pro DI Box!
The Super Pro DI Box is a ruggedly built passive direct box. It’s made with pride in Italy and includes one of world’s nest transformers.
This DI provides extremely high-quality isolation and reduces ground hum in sound systems.
This manual will help you get the most out of your Super Pro DI Box. If you have any questions after reading, feel free to contact our Online Customer Service Department at
Thank you again, and enjoy your Super Pro DI Box!
3. INTRODUCTION
Markbass has a keen understanding of the needs of recording and live sound engineers, and has worked long and hard to design a state-of-the-art passive direct box that fully meets these
professional requirements.
Phase distortion and harmonic distortion are most prevalent at lower frequencies, but with the Super Pro DI Box, the sound of your bass comes through nice and clear with smooth, transparent low
end. It’s extremely quiet and clean, and has been optimized to give full, rich, linear sound at all frequencies, handling extreme transients without adding any distortion or color to your sound.
The Super Pro DI Box performs beautifully with any source you put through it… not just bass.
It’s great for acoustic and electric guitars, electronic drums, high-output electronic instruments and digital keyboards.
Passive direct boxes have the advantage of providing isolation, which can reduce ground hum in systems, but this requires a high-quality transformer—and our “Yellow Box” features one of the
world’s nest! No matter what type of signal you use it for, the Super Pro DI Box always sounds full and natural.

04
4. FUNCTION OVERVIEW
INPUT 1 - Connect your instrument to the input of the Super Pro DI Box. Before making connections, make sure all volume levels are set
to zero and the audio system is turned o. This will avoid any loud pops in your system that could cause damage. The Super Pro DI Box is a
passive direct box: it does not require any power at all and will ignore the phantom power from your mixer, if activated.
THRU 2 - Connect to your on-stage amplier, or a second mixer, recording apparatus, or powered monitor.
XLR TO MIC INPUT 3 - The balanced XLR output allows you to connect your Super Pro DI Box directly to a mixing console or sound card
interface (either in live situations or in a recording studio). Simply connect a standard XLR cable from this output to the soundboard/mixing
console/interface, or a snake connected to the board/console/interface..
GROUND LIFT SWITCH (4) - Occasionally when you’re playing live and using the XLR LINE OUT (3), the soundman will detect a hum from
your amp’s signal. This is almost always due to a grounding problem related to your power source; you will likely eliminate this hum simply
by ipping the GROUND LIFT (4) switch.
SPEAKER OUT / LINE SWITCH 5 - The Super Pro DI Box also allows you to send the amp’s output signal (instead of the instrument signal)
to the PA or recording system, by placing the DI between the head and cabinet. Set the Speaker Out/Line Switch to“Speaker Out” and con-
nect the amp’s speaker output to the Input (1), and connect the Thru (2) output to the cabinet’s input. Before making this connection, make
sure the amp is switched o, and check that the DI is switched to “Speaker Out” if you need to reduce the input level to prevent distortion
from ultra-high output devices.
Switch the DI to “Line” when connecting your instrument directly to the DI, or when connecting lower signal output devices to the Super
Pro DI Box.
5. TECHNICAL SPECS
INPUT CONNECTORS: 1/4” Jack
OUTPUTS CONNECTORS: 1/4” Jack + XLR Male
INPUT IMPEDANCE LINE: 80 Kohm (secondary 600 ohm)
INPUT IMPEDANCE SPEAKER: 12 Kohm (secondary 600 ohm)
LINE ATTENUATION : 21 dB (secondary 600 Ohm)
SPEAKER ATTENUATION : 47 dB (secondary 600 Ohm)
SWITCHES : SPEAKER OUT/LINE, GROUND LIFT
WEIGHT: 0.46 lbs / 208 g
DIMENSIONS : 5.5” x 2.6” x 2.4” / 140 x 66 x 60 mm

LIMITED WARRANTY
Markbass oers an international limited warranty on Markbass products purchased from any authorized Markbass dealer, eective from the day of purchase. The terms of this warranty
vary from country to country; please contact the Markbass distributor in your country for details.
Please register this product online at www.markbass.it to establish the date of purchase. However, please note that you are required to retain a copy of your receipt as proof of purchase
in order to receive warranty service.
This warranty does not apply to any damage to the product caused by misuse, mishandling, accident, abuse, alteration, modication or unauthorized repairs. Product appearance and
normal wear and tear (worn paint, scratches, etc.) are not covered by this warranty. Markbass reserves the right to be the sole arbiter regarding the misuse or abuse of this product.
Markbass assumes no liability for any incidental or consequential damages, which may result from the failure of this product. Any warranties implied in fact or by law are limited to the
duration of this express limited warranty. Your legal rights related to the warranty will vary depending on the country of purchase.
WARRANTY CARD
This product is guaranteed by the warranty provided in the country of purchase, under the following conditions:
A - The MARKBASS warranty is only applicable if this document been properly completed (here or online) and if the original invoice/bill of sale, mentioning model, serial number and
purchase date, is presented together with this document.
B - The obligations of MARKBASS are limited to the repair of defects. Warranty repair eligibility will be decided at the sole discretion of MARKBASS or its representatives. Freight, freight
insurance costs, and any other costs related to the repair of this product are not covered by this warranty.
C - All warranty repairs must be made by MARKBASS or an authorized MARKBASS (PARSEK) service center.
D - This warranty does not apply in the following instances:
• if the damage was caused by accident, negligence or modications; use of non MARKBASS spare parts; or improper use, installation or packing;
• if the serial number on the equipment is illegible;
• if the damage was caused by lightning, water, re, incorrect main voltage, insucient ventilation or any other cause beyond the control of MARKBASS.
E - This warranty is not applicable to any speaker that has been subjected to power in excess of that for which it has been designed.
F - MARKBASS reserves the right to redesign or improve/modify its product at any time without any obligation to modify previously manufactured products.
Parsek srl. - Italy - 66020 San Giovanni Teatino (Ch) - Via Po, 52/A Tel. +39 085 446 37 55 - Fax +39 085 440 77 64 www.momark.it - www.markbass.it [email protected]

WARRANTY CARD
We’d like to thank you for choosing a Markbass Product.
If any problem occurs please don’t hesitate to contact our support team at service@markbass.it .
You can ll out this form and send a copy to Markbass (Parsek srl, Via Po 52, 66020 San Giovanni Teatino, CHIETI ITALY) or, even better, you can now register your warranty online in a
matter of minutes, using our online registration form at www.markbass.it. Simply point, click and type in your information...and you’re done!
Registering your warranty identies you and your product, in case you are ever in need of warranty service. Please note that in order to qualify for warranty service, you must retain a
copy of the sales receipts or bill of delivery as proof of purchase.
The information that you provide here will not be shared with any third parties and will be used for Markbass internal business purposes only.
PRODUCT INFORMATION
Model : _________________________ Serial Number: _________________________
Date of Purchase : _________________________(mm/dd/yyyy)
DEALER INFORMATION
Dealer: _________________________ Dealer City: _________________________ Dealer Country _________________________
PERSONAL INFORMATION
Purchased by
First Name _________________________ Last Name _________________________ Your Email Address _________________________
Address _________________________ City _________________________ State/Prov _________________________
Zip _________________________ Country _________________________
Do you want to join our mailing list? □YES □NO
MORE INFO (* not mandatory)
*Age _________________________ *Sex _________________________ *Occupation _________________________
WHERE DO YOU PLAY YOUR INSTRUMENT?
□Stage / Performing Musician □School / Student □Classroom / Educator □Home □Studio Recording
WHAT LEVEL OF PLAYER ARE YOU?
□Beginner □Amateur □Semi-Professional □Professional
PRODUCT PURCHASED VIA:
□Internet □Retail Store
WHAT MOST INFLUENCED YOUR BUYING DECISION?
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________

05
6. CONNECTION EXAMPLES
SPEAKER OUT
LINE
7. BLOCK DIAGRAM

Italy - 66020 San Giovanni Teatino (Ch) - Via Po, 52 - Tel. +39 085 446 3755 - Fax +39 085 440 7764 -
Product specifications are subject to change without notice
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