OWNER’S MANUAL
DE50
Congratulations on the purchase of your new Kustom® Deep End® Series bass amplifier. This model
utilizes an exclusive preamp design that combines a 12AX7 tube, known for its robust tonal qualities,
with solid-state circuitry that provides consistency of performance and reliability. The result is rich,
dynamic tone that is perfect for a wide variety of playing styles and environments. Inside this manual
you’ll find details about your Deep End® Series model. Everyone at Kustom wishes you many years of
enjoyment with your new amplifier!
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1.) Passive Bass Input - this is a 1/4-inch, 2-conductor input jack for plugging in your instrument. It is
intended for bass guitars, but will accept other instruments as well.
2.) Active Bass Input - this is a 1/4-inch, 2-conductor input jack for instruments with active electronics
or high output.
3.) Tube Gain - adjust this control clockwise to increase the amount of gain. Set this control in its lower
ranges to achieve the cleanest tones. As this control is turned clockwise, you’ll begin to hear the grit
and growl of a classic overdriven tube amp. At maximum settings, thicker, more aggressive tones
are produced. Note: Gain is applied to the tube stage before the tone controls.
4.) Bass - this passive EQ adjusts the low frequency equalization of the amplifier.
5.) Mid - this passive EQ adjusts the mid-range frequency equalization of the amplifier.
6.) Treble - this passive EQ adjusts the high frequency equalization of the amplifier.
7.) Master- this controls the overall volume level of the amplifier. Note: Your DE50 features an
exclusive Kustom® circuit called Organic Clipping™. When the Master volume level is turned up to
its higher ranges, this power amp circuit reacts like an all-tube amp, generating lower order, musical
harmonics and natural clipping characteristics like the best all-tube designs. It provides the classic
power amp “growl” that bass players know and love, with a smooth transition from clean to grind.
8.) Jewel Light - when lit, this jewel light lets you know that the amplifier is on.
9.) Power - this switch turns the AC power to the amplifier On and Off.
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1.) External Speaker - this is a 2-conductor, 1/4-inch speaker output jack. Rating is 8 Ohms minimum.
For full power, use an 8-Ohm speaker load. Higher impedance loads will result in lower power levels to
the speaker. The signal path to the internal speaker is disconnected when using this jack.
2.) Headphones - this is a 3-conductor, 1/8-inch, stereo jack. The amplifier’s internal speaker is
disconnected when this jack is used.
3.) AUX In - this is a 3-conductor, 1/8-inch, stereo jack that allows playback from a Compact Disc, MP3
player, or other audio device. The volume is controlled by the device that is plugged into this jack.
4.) Balanced Line Out - this XLR jack is used to connect the amplifier to a mixer or other line level
amplifier. The output for this jack is pre EQ, so only the gain setting will be reflected on this output.
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1.) AC Power Cord Receptacle - AC power cord can be removed for easy storage and replacement
if damaged. Insert the AC cord (provided) firmly into the AC receptacle. NOTE: Replace the AC power
cord if protective jacket is damaged or ground pin is damaged or removed.
2.) Fuse - The fuse is located in a fuse tray just below the receptacle. Replace only with same type
and size. For your convenience, a spare fuse is located inside the fuse tray toward the front. To replace
fuse, remove AC power cord. Remove fuse tray by pulling the tab located above the fuse symbol away
from the receptacle.
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Tube
Output Power
Speaker
Preamp
1-12AX7
50 Watts, RMS
1 X 10 Inch
Dual Input
71dB
8 Ohms @ 5% THD
Kustom® Deep End
0dB: 1 Meg Ohm, -6dB: 100K Ohm
(all controls @ max)
Input Impedance
Gain
Signal to Noise Ratio
Direct Output
Auxilliary Input
Headphones Output
80dB typical
Electronically balanced XLR
Stereo 1/8-inch high impedance input
Stereo 1/8-inch jack
Bass
Mid
28dB range @ 40Hz
18dB range @ 450Hz
23dB range @ 8kHz
Amplifier Tone
Controls
Treble
USA/Canada
Europe
120VAC/60Hz, 120W nominal
230VAC/50Hz, 120W nominal
Power Requirements
Dimensions/ Weight
UK
240VAC/50Hz, 120W nominal
Australia
240VAC/50Hz, 120W nominal
Japan
cm3/kg
100VAC/50-60Hz, 120W nominal
48.3 (H) x 42.0 (W) x 29.8 (D), 17.0 kg.
19.0 (H) x 16.5 (W) x 11.75 (D), 37.5 lbs.
Inches/Pounds
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NOTES
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Kustom Musical Amplification Inc.
3015 Kustom Drive
Hebron, Kentucky 41048
USA
888-4-KUSTOM (888-458-7866)
All specifications are subject to change without prior notice. ©2009 Kustom
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