BlastKing ULTRAMIX 3102-EQ User manual

1
blastking.com
USER MANUAL
ULTRAMIX
-EQ3102
DUAL 31 - BAND GRAPHIC EQUALIZER
blastking.com

2
Thank you for the purchase of your BLASTKING ULTRAMIX Series Equalizer.
We know you have a world full of choices and we thank you for selecting us.
Please read this entire user manual before operating this unit
CAUTIONS
• All operating instructions should be read before using this equipment.
• To reduce risk of electrical shock, do not open the unit. There are NO USER OR SERVICEABLE PARTS INSIDE. Please refer servicing to a qualified service
technician. Opening the unit without the manufacturer authorization will void the warranty.
• Do not expose this unit to direct sunlight or a heat source such as a radiator or stove.
• Dust, dirt and debris can interfere with the performance of this unit. Make an effort to keep this unit away from dusty, dirty environments, and cover the unit when
it is not in use. Dust it regularly with a soft clean brush.
• DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
• DO NOT USE ANY SPRAY CLEANER OR LUBRICANT ON ANY CONTROLS OR SWITCHES.
BlastKing® products purchased in the USA are protected under the regular manufacturer’s warranty. The Ultramix series comes with a 2 year warranty.
This warranty is intended to protect customers from any and all manufacturer defects from two years of purchase.
The product will be replaced or repaired at the manufacturer’s discretion upon receipt of the warranted unit along with a dated proof of purchase from an authorized
dealer or distributor. This warranty becomes null and void under situations including but not limited to misusage, normal wear and tear, shipping damage and abuse.
For international purchases, please contact your local dealer or sales associate for further warranty information.
FCC STATEMENT
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced technician for help.
For warranty please register this product online at
http://blastking.com/product-registration/
This manual does not contain all the information about the design, production and changes of the equipment, and does not cover all the conditions that may occur
during installation, use and maintenance.
The information provided in this manual is accurate at the time of delivery. It may have changed due to product updates.

3
blastking.com
FEATURES
• Dual Channel 31 Band Graphic Equalizer
• 1/3 Octave Bands
• Adjustable High Pass Filter Circuit 12Hz to 285Hz
• Switch - Selectable Cut or Boost of Either 6dB or 15dB
• 10 Segment Two Color LED Meter Displays Indicating 0 Vu To 4dBu
• XLR Input and Output Connections
• 1/4” TRS Input and Output Phone Jacks
• Switchable Power Supply 110 - 220 VAC
FRONT PANEL
Displays power on or off
1POWER LED
The individual equalization faders adjust the gain or loss at each
filter frequency. There are 31 of these faders per channel on the
ULTRAMIX3102-EQ. By adjusting a combination of faders, an overall
frequency response can be developed and the physical position of
the faders will give an approximate visual indication of this response.
2EQUALIZATION
The gain control adjusts the overall gain of the equalizer when
the EQ switch is “in”. It is generally used to compensate for level
changes due to the equalization process, but can also adjust overall
system level and gain structure. Overall gain with this control is from
+6dB to -∞.
3GAIN
2
1
3
6
7
5
4
On the ULTRAMIX3102-EQ, a 10-segment, two color LED level
meter indicates the output level of the equalizer. A Clip indicator LED
illuminates when any point in the equalizer signal path reaches a
level within 3dB of clipping.
4LEVEL METERS
This switch selects the operating range of the individual equalization
faders between 15dB and 6dB. The 15dB settings should be used
when this much equalization is needed. The 6dB setting allows finer
resolution on the fader settings.
5RANGE SWITCH
This switches the Graphic Equalization and gain adjustments,
allowing the effect of any equalization to be compared to a “flat”
response. This switch does not defeat the High-pass filter.
6EQ BYPASS SWITCH
The high-pass filter can be used to supplement the frequency
response achieved by the bandpass filters. Its function is to “roll off”
the response below a given frequency eliminating subsonic inter-
ference like wind noise or floor rumble. This frequency is adjustable
between 12Hz and 285Hz.
7HIGH-PASS FILTER
2

4
BACK PANEL
810
9
8CONNECTORS & CABLES
11
8
If you must use unbalanced connectors, the negative lead of the connector should be tied to the ground lead. Using unbalanced connections could result
in chassis ground-loop noise. Altering the signal/chassis ground relationship in equipment connected to your ULTRAMIX 3102-EQ equalizer may eliminate
the noise.
The ULTRAMIX 3102-EQ equalizer is provided with three different connector types:
1. 1/4 inch stereo phone jacks (TRS)
2. Three pin XLR type connectors
3. Euroblock screw terminal connectors
These connectors will allow interfacing to most
professional audio products. Inputs as well as
servo-balanced outputs can be used balanced
or unbalanced. When possible, balanced
connections are recommend between all
components in your system, as this eliminates
ground-loop induced hum and noise.
9110-220VAC SWITCH
10 POWER SWITCH
11 MULTI VOLTAGE POWER CONNECTOR
Inputs
For unbalanced inputs, the signal should be on the + connection and
the - connection tied to ground. A mono 1/4” plug used as an unbalanced
connection will automatically be grounded. When using a stereo plug, XLR
connector, or euroblock for an unbalanced signal, the (-) input connection
MUST be tied to ground.
Output
This output circuit is an active output which maintains a constant
output level between the (+) and (-) output terminals, regardless
of either terminal being connected to ground. This servo-balanced
output provides an unchanged signal without regard to ground.

5
blastking.com
INSTALLATION
Before connecting to mains power, make sure that the switches are set to the configuration needed for your particular application. Always switch the equalizer off
before making any changes to the settings. Failure to do so could result in damage to the unit or other components in your system. Use four screws and washers
when rack mounting the Equalizer. For mobile use, the unit should be further secured as appropriate.
General Requirements
The ULTRAMIX 3102-EQ equalizer have specific physical, electrical and signal requirements for proper operation. These requirements will vary depending on your
specific application, setup, and the settings on the equalizer. When setting up and testing your system, please take special care to double check all connections and
settings. Please refer to the specifications section of this manual for specific input, output and other figures.
AC Power
Your ULTRAMIX 3102-EQ equalizer should be connected to a standard 3- wire grounded electrical outlet supplying 100-240 Volts, 50-60 Hz. To reduce the risk
of ground loop hum, connect all audio equipment to the same electrical power source. Do not remove the AC plug ground pin, as a potential shock hazard could
result.
This unit will perform normally within the AC voltage range specified above. Voltages less than this, as found in “brown-out” conditions, may reduce performance.
No user serviceable parts are inside the chassis. Refer all servicing to qualified service personnel. Overall power consumption is less than 30 watts.
NOTE: The power switch does NOT isolate the appliance from mains. Make sure the mains power socket or an alternative disconnect device is near by and easily
accessible. When the product is connected to mains, the line-filter and the input of the fuse are energized.
TYPICAL APPLICATIONS
The following information will help you make the most of your new equalizer:
General Tone Control
The graphic equalizer is a very useful device for general tone shaping because it is intuitive and easy to adjust. The visual reference provided by the slider position
gives an approximate idea of the frequency response generated, with the lower frequencies on the left and higher frequencies on the right. To use the power of an
equalizer effectively, you need to translate your idea of the tone you want to produce into a range of numerical frequencies. This is simple after a little practice.
Here are a few references which are useful for starting points:
Very low bass (the “wind” in a kick drum, almost felt as much as heard -40Hz-80Hz.
The low register of a male voice - 200Hz
The low register of a female voice - 350Hz
Lower midrange (“warmth” frequencies) - 400Hz-1KHz
Upper midrange (“harshness”, snare drum “bite”, “hot” sound) -2.5KHz-4KHz.
Sibilance (“sss” sounds, cymbal “sizzle”) - 8KHz-15KHz.
Try using these starting points as a guide when you want more or less of these types of sounds. Adjust by ear from there. It is always a good idea to remember that
a little equalization usually works out much better than a lot, and that there are many audio problems which can not be solved with equalization alone.
Feedback Control
A graphic equalizer can be used to provide some control over moderate feedback problems, but does not have enough flexibility or resolution to handle severe
situations. You will achieve the best results when you can eliminate one or two feedback points by setting one or two sliders for no more than a 6dB cut. Often you
can find a feedback point by boosting sliders in succession to determine which frequency ranges contain the feedback modes, and then cutting those ranges. Be
very careful in this process to avoid explosive feedback and possible system and hearing damage. If you find feedback points with many equalizer bands, cutting
every band may not help (all you will do is reduce system gain). The combination of a graphic equalizer for tone control and a parametric equalizer for feedback
control is highly recommended.

6
TYPICAL APPLICATIONS
Console Channel Equalization
Many mixing consoles provide only simple equalization for individual channels. If your console has channel inserts, you can patch your graphic equalizer into a
channel requiring more precise equalization.
Large Room Equalization
Large rooms tend to suffer from multiple reflections with long time delays, long reverberation times, and “ringmodes”, all of which lead to reduced intelligibility and
a generally “muddy” sound. As sound travels long distances through the air, high frequencies are attenuated more than low frequencies. In general, large rooms
benefit from some low frequency roll-off, high frequency boost, and attenuation of ring mode frequencies. As in the case of feedback control, a graphic equalizer
can help reduce an isolated ring-mode or two, but a tunable narrow-band equalizer such as a parametric is more effective here.
TROUBLESHOOTING
Situation Action
No Audio Output Check AC power - is the power LED on?
Check in/out connections - are they reversed?
Are you sure you have an input signal?
EQ Controls Do Nothing Is the master EQ switch in?
The lowest and highest frequency sliders may be beyond the range of the program
material or speakers and may produce little or no audible effect.
Peak Light Flashes or
Stays On All the Time
If the peak light flashes, the signal level to the equalizer is too high. Turn down the gain.
If it is on all the time, disconnect the input and output cables. If it is still on, the unit
must be returned for service.
Distorted Sound This will only be caused by too much signal which will show on the Clip LED. If the LED
is not flashing, there is an overload somewhere else in the signal path. Adjust the
relative gain of each component in your chain to keep everything at a comfortable level.
Excessive Hum or Noise Hum will usually be caused by a ground loop between components. Try using the
suggested balanced input and output hook-ups if the other pieces of equipment used
in conjunction with your equalizer have balanced inputs and outputs. Noise (excessive
hiss) can be caused by insufficient drive signal. Make sure you are sending a nominal
0 dBu line level signal to the equalizer. Most noise problems occur because gain is
applied to audio signals too late in the chain. For best performance, apply gain to
individual source signals as early as possible, like at the mixer input section.
As gain increases, it also boosts the noise content of that signal.
Any cumulative noise built up in a mixed signal will only be increased by using an
equalizer as a gain device, so make every attempt to operate the equalizer with as little
gain as possible.

7
blastking.com
ULTRAMIX 3102-EQ
Type Active Balanced
Impedance 20KΩ
Max Level +23dBu
Connectors 1/4” Phone Jack (TRS), XLR, Euroblock
Output
Type Servo-Balanced
Source Impedance 200Ω
Min Load Impedance 600Ω
Max Level +23 dBu
Connectors 1/4” Phone Jack (TRS), XLR, Euroblock
Overall
Frequency Response ±25dB
THD <.01%@+20dBu
IM Distortion (SMPTE) <.01%@+20dBu
Output Hum & Noise (unweighted) -90dBu
Channel Separation >95dB @ 1Khz
Gain Control -∞ to +6dB
Filters
Type Constant Q/Wein Bridge
Number 2x31
Bandwidth 1/3 Octave
Tolerance ±3%
Range ±15dB
Subsonic Filter 12dB/Octave @ 14-280Hz
Power Requirements
Nominal Voltage 100-240 VAC (50-60 Hz)
Minimal Voltage 85 VAC
Power 30W
Physical
Weight 11.5 lbs (5.25 Kg)
Dimensions (LxHxD) 19” x 5.25” x 8” (483 x 133 x 203 mm)
SPECIFICATIONS

blastking.com
2980 NW 74th Ave.
Miami, FL 33122
Phone: [phone]