USB 1389 - 1390 - 1391 - 1392
Class-AB Power amplifiers
SPECIFICATIONS
WARRANTY
US BLASTER Inc. warrants all products not to exceed ONE YEAR* from the date of original purchase
which installed by an authorized US BLASTER dealer. Units that are not installed by an authorized US
BLASTER dealer maitain a warranty not to exceed 90 days from the original purchase date. Product
that displays abuse such as power deficiency, over driving the amplifier or clipping the input is requi-
red to purchase a new PCB for replacement. US BLASTER obligates to repair or replace base on its
own sole option for defective products. This warranty does not fit for equipment that has been dama-
ged by accidents, negligence or misapplication or has been altered or modified in anyway. This war-
ranty applies only to the original purchaser who registers the product properly within 10 days after
purchase. Except as provided herein, US BLASTER makes no warranties or representations, express
or implied, including any warranty implied by law, whether for merchantability or fitness for a parti-
cular purpose.
DUE TO CONSTANT IMPROVEMENT, PRICES AND SPECIFICATIONS
ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTIFICATION.
© US Blaster Europe BV
MODEL
4Ohm RMS power at 14.4V
2Ohm Load RMS power at 14.4V
4Ohm Bridged RMS power at 14.4V
Input Level
High Level Input
Two Channel Input mode
CH-A filter mode
CH-B filter mode
CH-A LPF
CH-A HPF
CH-B LPF
CH-B HPF
Frequency Response
THD at 4Ohm load - 30% Rated Power
S/N Ratio
Channel Seperation
Minimum Load
Overload protect System
Overheat protect temperature
Hi-END Design
Components & PCB
Dimensions
USB 1389
160 Watt
190 Watt
350 Watt
0.2~5V
NA
YES
HP-FULL-LP
HP-FULL-LP
50~500 Hz
50~500 Hz
50~500 Hz
50~500 Hz
10Hz~25 KHz
<0.02%
>90 dB
>89 dB
2 Ohm
YES
80 ºC / 176 ºF
YES
SMT & Double side board
318 x 244 x 53 mm
USB 1390
160 Watt
190 Watt
350 Watt
0.2~5V
NA
YES
HP-FULL-LP
HP-FULL-LP
50~500 Hz
50~500 Hz
NA
NA
10Hz~25 KHz
<0.02%
>90 dB
>89 dB
2 Ohm
YES
80 ºC / 176 ºF
YES
SMT & Double side board
215 x 244 x 53 mm
USB 1391
90 Watt
110 Watt
180 Watt
0.2~5V
NA
YES
HP-FULL-LP
HP-FULL-LP
50~500 Hz
50~500 Hz
50~500 Hz
50~500 Hz
10Hz~25 KHz
<0.05%
>90 dB
>89 dB
2 Ohm
YES
80 ºC / 176 ºF
YES
SMT & Double side board
263 x 244 x 53 mm
USB 1392
90 Watt
110 Watt
180 Watt
0.2~5V
NA
NA
HP-FULL-LP
NA
50~500 Hz
50~500 Hz
NA
NA
10Hz~25 KHz
<0.05%
>90 dB
>89 dB
2 Ohm
YES
80 ºC / 176 ºF
NA
SMT & Double side board
183 x 244 x 53 mm
Summary of Contents for USB 1389
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