JL Audio JD250/1
1-channel amplifier
still
/piece
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Description
Discover the JD250/1, a 1-channel amplifier from JL Audio. This particular model is a 250W monoblock Class D subwoofer amplifier - designed to generate 250 watts at 2 ohms. Featuring JL Audio's proprietary NexD™ switching technology, the JD250/1 offers excellent efficiency and ultra-low distortion. In addition, the amplifier features convenient controls and numerous signal processing functions, including a variable bass boost EQ. A special feature of this amplifier is the integrated LED clamp indicator ring, which enables precise adjustment of the input sensitivity without the need for special equipment. The JD250/1 fulfills all requirements for an efficient subwoofer supply system.
Features
- Monoblock subwoofer amplifier in Class D, 250 W x 1 @ 2 Ω / 150 W x 1 @ 4 Ω - 14.4V
- Designed to produce 250 watts into 2 ohms (14.4V, 1% THD), the JD250/1 amplifier is a great solution for powering subwoofers in a cost-conscious system.
- JL's proprietary NexD™ switching technology delivers large amounts of real output power with excellent efficiency and ultra-low distortion.
- The controls of the JD250/1 are located on the input panel, while the power and speaker connections are located at the opposite end of the extruded aluminum housing.
- The signal processing functions include a 12 dB/octave low-pass filter with infinitely variable frequency selection from 50-500 Hz and a variable bass boost EQ.
- Differentially balanced dual-range inputs are also available, which can accept signals with line and loudspeaker levels.
- Automatic power-on (via signal sampling or DC offset sampling) is standard, along with a range of preamp outputs so you can easily route signals to another amplifier.
- The JD250/1 is also equipped with an integrated LED clamp indicator ring surrounding the input sensitivity control. This useful feature allows you to quickly and precisely adjust the input sensitivity of the amplifier without the need for special equipment.
- With an additional RBC-1 remote control (sold separately), you can control the subwoofer level from the driver's seat.
Rated continuous power (RMS) at 14.4 V
- @ 4 Ω : 150 W RMS x 1
- @ 3 Ω : 200 W RMS x 1
- @ 2 Ω : 250 W RMS x 1
Rated continuous power (RMS) at 12.5 V
- @ 4 Ω : 115 W RMS x 1
- @ 3 Ω : 150 W RMS x 1
- @ 2 Ω : 200 W RMS x 1
General specifications
- Frequency response : 7 Hz - 500 Hz (+0, -1dB)
- S/N ratio, relative to the highest rated power: >80 dB below the rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
- Attenuation factor @ 4 Ω : >1000 / 50 Hz
- Attenuation factor @ 2 Ω : >500 / 50 Hz
- THD+N @ Nennleistung : <1% @ 2 Ω pro Ch.
- Input voltage range @ RCA inputs : switchable from 200 mV - 2 V RMS (low) to 800 mV - 8 V RMS (high)
- Minimum cable diameter : 10mm²
- Fuse rating : 30 A (AFS, AGU or MaxiFuse™)
Signal processing
- Filter mode : Low pass only
- Filter slope : 12 dB/octave
- Filter frequency range : 50 Hz - 500 Hz
- Subsonic filter : No
- Bass Boost EQ: Yes
- Remote control of the subwoofer level control : Optional (RBC-1)
- Pass-through preamplifier output : buffered
Dimensions
- Height (H): 53 mm (2.10 inches)
- Width (W) : 242 mm (9.50 inch)
- Depth (D): 190 mm / 7.50 inches
