EarthQuake SUB-80X Manual de usuario
Sound That Will Move You
Sound That Will Move You
SUB-80X
150 Watt
Digital
Powered
Subwoofer
User's Manual
Earthquake Sound reserves the right to amend details of the specifications without notice.
Copyright © Earthquake Sound Corporation
Earthquake Sound Corporation • 2727 McCone Avenue Hayward CA, 94545
Phone: 510-732-1000 Fax: 510-732-1095
Congratulation on your choice of the SUB-80X self powered subwoofer system,
one of Earthquake's newest designs in bass reproduction units.
With an integral high-power amplifier - 150 Watts, the SUB-80X subwoofer
combines tight bass extension with high output levels. Acoustically, it is designed
to match typical satellite speaker systems to enhance the over all sound quality
and performance of your system.
Dear Valued Customer,
A) LINE IN RCA - Input jacks, accept up to 1.4 volts of audio input signal (mono
and stereo).
B) LIN OUT RCA- High pass filtered RCA output jacks with left and right line
output signals. The line out RCA's are not functional when the line in signal
(going into the subwoofer) is derived from a sub-filtered output of an external
processor.
C) XOVER FILTER - The 12dB/Octave variable crossover filter is designed to
control the subwoofer cut off frequency (range from: 40Hz to 130Hz).
D) VOLUME CONTROL - Manual adjustment of the sound level of the
subwoofer. Always start at MIN position and slowly increase the volume to reach
the desired subwoofer level.
E) PHASE SHIFT - 0 to 180 degrees subwoofer phase shift switch.
F) POWER SWITCH - For operating the amplifier automatic or manual power on.
In automatic mode, the SUB-80X will turn OFF in 15 minutes if no audio signal is
detected.
G), H) POWER INPUT - The SUB-80X operates in 115V and 230V environments.
A sliding switch located near the power plug allows for both operations.
I) HIGH LEVEL OUTPUT - High pass filtered output terminals designed to power
up stereo satellite speakers.
J) HIGH LEVEL INPUT - Clamp style input terminal, accepts high level audio
input from the main or front system speakers (up to 10 volts).
Key Connection and Controls:
Key Connection and Controls:
I
PHASE
AUTO
POWER
HIGH LEVEL INPUT
VOLUME CROSSOVER
OFF ON
0
O
180
O
120Hz
80Hz
LEFT
FUSE: 115V, T2A/250V
FUSE: 230V, T1A/250V
LEFT RIGHT
RIGHT
HIGH LEVEL OUTPUT
P O W E R E D S U B W O O F E R
DIGITAL
P O W E R
SUB-80X
1 5 0 W A T T S
Subwoofer positioning is integral to the successful application of any surround
sound system. It is very important to keep in mind that the proximity of the
subwoofer to a wall or a corner contributes to an increase in efficiency (SPL)
because of the "mirror effect" also referred to as "corner loading".
It is therefore advisable that you place the SUB-80X near a wall, or preferable in
the corner of the room. That will increase the subwoofer effect by 2 to 3 decibels,
without raising the volume control of the SUB-80X.
The fine tuning process includes creating a smooth transition of music between
the subwoofer and the next speaker up: usually a woofer or a mid-range. As
shown in the graph below; a smooth transition between lower and upper bass is
directly relative to the crossover setting and the capability of the next woofer up
to reproduce lower frequencies. Keep in mind that vocals extend down to 70Hz,
adjust your SUB-80X accordingly.
Fine Tuning:
Original Input Signal
Smooth Transition Between
Lower and Upper Bass IDEAL
CROSSOVER SETTING
LOWER
BASS UPPER
BASS
Gapped Transition Between
Lower and Upper Bass OVER GAPPED
CROSSOVER SETTING
LOWER
BASS UPPER
BASS
Uneven & Gapped Transition
Between Lower and Upper Bass OVER GAPPED
CROSSOVER SETTING
LOWER BASS ENCROACHING
ON UPPER BASS
LOWER
BASS UPPER
BASS
CENTERED POSITION
(RECOMMENDED)
WIDE SCREEN /
FLAT PANEL RIGHT
FRONT
RIGHT
REAR
LEFT
REAR
LEFT
FRONT
SUB-80X
VIEWING POSITION
CORNER LOADING
(HIGHLY RECOMMENDED) WIDE SCREEN /
FLAT PANEL RIGHT
FRONT
RIGHT
REAR
LEFT
REAR
LEFT
FRONT
SUB-80X
VIEWING POSITION
VENTILATION DUCT
SUB-80X
BASEMENT LOADING
(STEALTH APPLICATION)
Listening Room & Subwoofer Position: Positioning Examples
Operating & Controlling Your SUB-80X
* Secure all connection before powering up/plugging in the AC cord into the
subwoofer.
* Connect the input signal to either the RCA lin in (A) or the High Level input
terminal (F); these two input devices can not be used simultaneously, choose the
one that best matches the output of your existing audio system.
* If needed, connect the RCA line out (B) to another amplifier to drive satellite
speakers (front or rear). The RCAline out has high pass filtered signal at about
70Hz (5dB/Octave cut off).
* The High Level input (I) for satellite speakers is fitted with a High Pass filter
(70Hz). It is only powered when the main or front speaker signals are driven into
the High Level input (J). These terminals are marked with red and black to
indicate the (+) & (-) respectively.
* Adjust the subwoofer low pass filter cut off to near 100Hz at first, slowly bring
down the crossing point until you eliminate any vocals from emanating from the
subwoofer. An ideal crossing pint range from 55 to 70Hz
* In case the SUB-80X becomes out of phase with the satellite speaker, flip the
phase switch to correct the problem (maximum bass is only achieved when the
sub is in phase with rest of your speakers).
* Do not place the subwoofer in an environment exposed to dust, excessive
moisture or heat. Direct exposure to sun light will over time deteriorate the
enclosure finish and may cause the amplifier to overheat.
* To prevent electrical shock, never open the subwoofer cabinet before
disconnecting the power cord from the amplifier's main socket.
* In the event of a blown fuse, replace it with a 1 ampere fuse only. Over fusing
voids the warranty and will destroy the amplifier.
Cautions:
Amplifier
- Power Output: 150 Watts
- Frequency Response: 23Hz - 180Hz
- Crossover Frequency: 40Hz - 130Hz
- Crossover Slope: 12dB per Octave
- Typical THD: 0.09%
- Input Impedance: 47,000 ohms
- Input Sensitivity: 50mV to 2.3V
- Power Supply: 115V/230V (50Hz~60Hz)
- Fuse Rating: 1 amp
Features & Specifications:
Subwoofer
- 200 watts 8" subwoofer
- 1.5" high temperature voice coil
- Durable pressed paper cone
- Long Excursion santoprene surround
- 48oz high density magnet
- 89dB 1W/1M
- FS: 38Hz
- Qts: 0.516
System
- Dimensions HxWxD:
13-1/2" x 9-1/2" x 13-3/4"
- Weight: 18.7 lbs / 8.5Kg
For Technical Issues Please Contact Us VIA:
Phone: 1-800-576-7944
Email: [email protected]
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