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JL Audio 250/1

250 watts, Class D Monoblock Amplifier

4.6

(8 reviews)

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The product on this page is discontinued.
  • Class D Circuitry
  • 250W RMS @ 1.5 ohms - 4 ohms
  • THD at Rated Power: <0.05% @ 4 ohm
  • S/N Ratio: >95dB below rated power
  • Frequency Response: 5 - 50,000 Hz (+0, -1dB)
  • Damping Factor: >500 @ 4 ohm/50 Hz
  • Input Range: switchable from 200mV-2V RMS to 800mV-8V RMS
  • Differential-Balanced Input Topology: (1 pair of inputs)
  • On-board Crossover: fully-variable (40-200 Hz), selectable-slope LP (12 or 24 dB per octave)
  • Preamp Output: 2-channel (full-range, LP or HP)
  • Bass EQ: variable boost up to 15dB    
  • Infrasonic Filter: defeatable 24dB/octave at 30 Hz
  • Signal-Sensing Turn-On: permits operation without remote lead
  • Dual mono speaker output connections: accept up to 8ga. wire
  • +12V and Ground connections: accept up to 4ga. Wire
  • Dimensions: 10.25"L x 9.25"W x 2.36"H


Due to the complexities of installation, previous customer abuse, and improper installation, the JL Audio 250/1 is now a repair only item whether defective on day 1 or day 365 of ownership.
Product History:
JL Audio Slash v2 250/1v2 thumbnail
(newest, current model)
JL Audio 250/1 thumbnail
(previous model, replaced by JL Audio Slash v2 250/1v2)
Power Specifications - Full Range Channels
RMS Power @ 4 ohms250 watts x 1 channel
RMS Power @ 2 ohms250 watts x 1 channel
RMS Power @ 1 ohm(at 1.5 ohms) 250 watts x 1 channel
Bridged RMS PowerN/A
Peak Power OutputN/A
Amplifier Specifications
Amplifier ClassD
Number of Channels1 - Mono
Total RMS Power Output250 watts
Minimum Impedance Unbridged1.5 ohms
Minimum Impedance BridgedN/A
THD at Rated RMS Power0.05%
Speaker Level InputsNo
Preamp Outputs1 pair
Built-in CrossoverLow-pass (LP)
High-pass (HP)
High-Pass Crossover FrequencyN/A
Low-Pass Crossover Frequency40 - 200 Hz
Subsonic FilterN/A
Signal-to-Noise Ratio95 dB
Channel SeparationN/A
Bass Boost0 - 15 dB
Bass/Gain RemoteNo
Fan CooledNo
Fuse RatingN/A
Warranty and Return Policy
Return Policy Standard Return Policy
Customer Review Summary for JL Audio 250/1
Average Customer Rating is 4.6 out of 5 stars:
4.6
based on 8 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
.
63%
4 star:
.
.
38%
3 star:
.
0%
2 star:
.
0%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
5.0
Value
4.3
Features
4.4
Design
4.6
Usability
4.8
what's this?
Most Helpful Customer Reviews:
December 21, 2009 loud
Review by
shitsloud from duval, j-ville
Overall
Durability
Value
Features
Design
Usability
I have 2 kicker L5's hooked up to this amp and capacitor also with 2000 watt memphis hooked up to 8 seleniums 6in and tweets also hooked up to capacitor and i haven't heard any better sounding system for the amount of stuff put in, u can hear it clear for blocks
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December 20, 2007 Great Amp!!
Review by
Ben from PoulsboPoulsbo, WA
Overall
Durability
Value
Features
Design
Usability
I have this powering a Memphis PR 12" DVC sub. easily overpowers this sub in the substandard sealed truck box I have it in (0.7cf box) this little 250w amp has some PUNCH! I highly recommend JL products. my next step will be a JL W3 or W6 if I can fit it in a standard cab pickup! sound is CLEAN and STRONG!
JL uses true RMS ratings on the slash series amps, 1 ohm to 4 ohms its the same 250w. this baby is just easy! (and it has high end connections, stick the stripped cables in the hole and tighten the set screw, no funky connectors to buy! (or cost you power/looks)
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July 12, 2007 No Overheating
Review by
Grant from Plymouth, MI
Overall
Durability
Value
Features
Design
Usability
I recently used two JL Audio 250/1 mono block amplifiers when building my system. They consistently preform well for me and seem that they have been build to last. I have them mounted on an amp rack behind the bench of a regular cab Toyota Tacoma where space is limited. There is also very little room for ventilation, so I thought that overheating might be a problem, but it has yet to do so. These amplifiers, even given such limited ventilation do not heat up like other amplifiers I have used in the past. I am very impressed JL Audio!
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February 25, 2006
Review by
tyler from tallahassee, FL
Overall
Durability
Value
Features
Design
Usability
this amp is sweet. i have 2 kicker l5 12 inch. they will knock your pecker in the dirt. for a 250 watt amp it kicks like a donkey.
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February 20, 2006 great amp
Review by
Dustin from Wausau, WI
Overall
Durability
Value
Features
Design
Usability
first off id also like to say that I agree that yes JL is pricey, but really you cannot complain about that when you use this amp. This amp will seriously rock you like you wouldnt believe.Don't let the 250/1 fool you because this amp doesits wonders and believe me, I had this amp hooked up to 2 12" subwoofers that were 400 RMS each and wow, I shook my rearview mirror off!
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View All 8 Reviews for JL Audio 250/1
Amplifier Wiring Kits
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Bass Remote Control
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Small Universal Remote Level Bass ControlSmall Universal Remote Level Bass Control
The Scosche RLC is a smaller universal bass remote that connects via RCA inputs.
$12.99
Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
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Kicker XW1220 Speaker WireKicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install
$24.49
StreetWires SCP1215BL - 12 AWG Speaker WireStreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction
$19.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
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Kicker Z-Series RCA Interconnect CablesKicker Z-Series RCA Interconnect Cables
16.5 ft. of 2-Channel Kicker Interconnects with twisted pair conductors, gold plated contacts, and hyper-flex technology for easy installation!
$13.99
Monster Cable 300 Series XLN+ Audio Interconnect CableMonster Cable 300 Series XLN+ Audio Interconnect Cable
16.4 ft. of 2-Channel Monster Cable with XLN (Xtra Low Noise) construction, 6-cut turbine MirrorChrome connectors, and 2-way time correct windings for the ultimate RCA cable!
$45.00
Capacitors
Capacitors store energy for the amplifier to use on demand, thereby assisting in the elimination of dimming lights during peak power surges during use.
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Raptor C1F ** SPECIAL PRICE **Raptor C1F ** SPECIAL PRICE **
True 1.0 Farad Car Audio Capacitor for up to 1000W Max
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Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max
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Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
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StreetWires FB8StreetWires FB8
8 Gauge Firewall Bushing
$4.99
Kicker DB1448 (09DB1448) - Top of the Line!Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs
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Professional Installation for your Car Power AmplifierProfessional Installation for your Car Power Amplifier
Covers labor charges through our professional installer network.
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Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
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AutoSound 2000 CD-104AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
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AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
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Product Summary

Manufacturer: JL Audio
Model number: 250/1
Weight: 10.00 lbs
Internal SKU: jl2501
Internal product ID: 1651
Musical Mayhem Sweepstakes sponsored by MTX Audio. 3 winners, $2,300 in prizes!

Customer Testimonial

The information you provided to me was extremely helpful, and the turnaround time for your response to my question was very fast.
The customer service provided by Sonic Electronix is fantastic.

Bill C.
Phoenix

- Bill from Phoenix

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