Amplifier JBL MS-A1004

Detail produk dari Amplifier JBL MS-A1004

Features and Specs

Performance
RMS Power Output (Watts x Channels)	100 x 4
Peak Power Output (Watts x Channels)	N/A
Power at 2 Ohms (Watts x Channels)	100 x 4
Bridged Power (Watts x Channels)	200 x 2
Minimum Impedance Bridged	2
Minimum Impedance Unbridged	2
Best Frequency Response	10-27000 Hz
THD at Rated RMS Power	1%
Signal to Noise Ratio	80 dB
Input Voltage	14.4v
Features
Amplifier Class	D
Low-Pass Crossover Frequency	20-20 kHz
Low-Pass Slope (dB/octave)	6, 12, 24 dB/oct
High-Pass Crossover Frequency	20-20 kHz
High-Pass Slope (dB/octave)	6, 12, 24 dB/oct
Bass Boost	Optional remote only
Bass Boost Frequency	N/A
Fan Cooled	No
Fuse Rating	60
Speaker Level Inputs	RCA
Preamp Outputs	1 pair
Width (inches)	7-1/4
Height (inches)	2-13/16
Depth (inches)	8-13/16

 

FEATURES
Digital Signal Processing: The MS-A1004 is a four channel amplifier with a digital signal processor (DSP) built in to control input mixing, crossover settings, and output level. Once the gain is adjusted for the incoming signals, they are converted from analog to digital and routed through the DSP, then to the Class-D amplifier.

4-Channel Design: While four channel amps are typically used to power front and rear speakers, the input and output channels are labeled 1-4 for maximum flexibility without added confusion. Because the crossovers can be set to high-pass, low-pass, or band-pass with crossover points ranging from 20 Hz to 20 kHz, the MS-A1004 can be used to power almost any combination of speakers; four full range speakers, two tweeters and two midrange (powered separately), two full range speakers and a subwoofer (bridged), two subwoofers (both bridged), etc. Channels one and two share controls, as do channels three and four. Controls include input gain, input mixer, high-pass crossover, low-pass crossover, and output level.

Setup Disc: The included setup CD is used to correctly adjust the input gain. With the amp in setup mode, a test tone is output from the disc with the radio at full volume (the amplifier output is muted) and the amp measures the line voltage, guiding you with arrows on the display as you adjust the gain controls.

Signal Sensing: The MS-A1004 has a remote turn-on terminal that activates the amp with an input between +5 and 12+ volts DC. If the connected radio has no remote lead, or you prefer not to use it, turn on the signal sensing turn-on circuit and the amp will turn on whenever an audio signal is present at the inputs.

Crossovers: Each set of outputs (1/2 and 3/4) has independent high-pass and low-pass crossovers; they can be used individually or both can be used together as a band-pass crossover. The slope of each is adjustable (6 dB/oct, 12 dB/oct, and 24 dB/oct) and the crossover point has 98 options:

• 20 Hz to 45 Hz in 2.5 Hz steps
• 50 Hz to 130 Hz in 5 Hz steps
• 140 Hz to 300 Hz in 10 Hz steps
• 350 Hz to 800 Hz in 50 Hz steps
• 900 Hz to 2 kHz in 100 Hz steps
• 2.2 kHz to 5 kHz in 200 Hz steps
• 5.5 kHz to 10 kHz in 500 Hz steps
• 12 kHz to 20 kHz in 2 kHz steps
• Off

Subsonic Filter: When powering a subwoofer, the high-pass crossover can be adjusted to act as a subsonic filter (20 Hz, 25 Hz, etc).

Audio Input: If your radio has no line-level outputs, use the included adapters to convert the speaker wires to RCA and plug them into the amplifier's inputs. The differential inputs will accept any signal from 100mV to 15.0V; set the input selector switch to Hi when using speaker-level inputs. The input selector switch also has a Hi2 position, used to present a speaker load to factory radios equipped with a circuit that turns the radio off when an amp is connected.

Wireless Bass Control: An optional MS-WBC wireless bass control (item number109MSWBC, sold separately) is available to remotely adjust the bass output. The MS-WBC communicates via RF signal and requires no physical connection to the amp; it's also battery powered, but has an optional power wire if you prefer not to replace the battery periodically. When adjusting the bass output, the DSP also adjusts the crossover, so the tonal quality of the bass (and its apparent location) doesn't change.

Controls

Controls: Each of the following is set independently for the 1/2 channel and 3/4 channel outputs:

• Input Gain: rotary knobs
• Input Selector: three position switch; Lo (line-level RCA), Hi (speaker-level), or Hi2 (used only with factory radios having a circuit that turns the radio off when it sees no speaker load)
• Input Mixer: one, two, three, or four inputs can be used with no need for Y-adapters; 1 (mono input 1 feeds both outputs), 1/2 (stereo inputs 1 and 2 feed the stereo outputs), 3 (mono input 3 feeds both outputs), 3/4 (stereo inputs 3 and 4 feed the stereo outputs)
• High-Pass Crossover Slope: 6 dB/oct, 12 dB/oct, or 24 dB/oct
• High-Pass Crossover Frequency: choose from 97 options from 20 Hz to 20 kHz, or off
• Low-Pass Crossover Frequency: choose from 97 options from 20 Hz to 20 kHz, or off
• Low-Pass Crossover Slope: 6 dB/oct, 12 dB/oct, or 24 dB/oct
• Output Level: adjust from 0 to 80; important when matching tweeters and midrange, subwoofer and full range speakers, etc

Connections

Inputs and Outputs:

• Power and Ground Terminals: set screw terminals; accept up to 4 gauge bare wire; requires included 4mm Allen wrench
• Remote Turn-on Terminal: set screw terminal, accepts up to 8 gauge bare wire; requires included 2.5mm Allen wrench
• Speaker terminals: set screw terminals, accept up to 8 gauge bare wire; require included 2.5mm Allen wrench
• Audio Inputs: 4 female RCA jacks; channels 1, 2, 3, and 4; compatible with a speaker level signal using the included adapters
• Line Level Outputs: 2 female RCA jacks; top is summed from inputs 1 and 3, bottom is summed from inputs 2 and 4; no crossover is applied

Apa yang ada di dalam kotak

Amplifier JBL MS-A1004

Spesifikasi lengkap produk

Merek: JBL
SKU: JB044OTAALCD3FANID-46154179
Jenis Garansi: Garansi Lokal
Model: Amplifier
Masa Garansi: 1 Tahun