The KICKER Impulse Stereo Power Amplifier, available in models IX252, IX402, IX702, IX1302, and IX2302, is a car audio power amplifier designed and engineered by Stillwater Designs. It is part of the KICKER product line, known for its international award-winning components. The Impulse amplifier is built with cutting-edge features to ensure outstanding performance and dependability within a properly designed audio system.
Function Description:
The KICKER Impulse amplifier serves to amplify audio signals for car stereo systems. It is designed to power various speaker configurations, including full-range speakers and subwoofers, offering both stereo and mono operation. The amplifier includes an internal electronic crossover, allowing users to select between high-pass, low-pass, or full-range operation, making it versatile for different audio setups. Its design facilitates multi-amplifier systems without the need for external RCA splitter cords, as it provides output RCA jacks to feed subsequent amplifiers.
Important Technical Specifications:
RMS Power (watts/channel) @ 12.5V, 4Ω stereo, 0.085% THD, all channels driven:
- IX2302: 230 x 2
- IX1302: 130 x 2
- IX702: 70 x 2
- IX402: 40 x 2
- IX252: 25* x 2 (*0.2% THD)
RMS Power (watts/channel) @ 12.5V, 2Ω stereo, 0.2% THD, all channels driven:
- IX2302: 360 x 2
- IX1302: 200 x 2
- IX702: 105 x 2
- IX402: 60 x 2
- IX252: 30 x 2
RMS Power (watts) @ 12.5V, 4Ω bridged mono, 0.2% THD:
- IX2302: 720
- IX1302: 400
- IX702: 210
- IX402: 120
- IX252: 60
Dynamic Power (watts/channel) @ 14.4V, 4Ω stereo, 0.085% THD, all channels driven:
- IX2302: 310 x 2
- IX1302: 175 x 2
- IX702: 100 x 2
- IX402: 55 x 2
- IX252: 30* x 2 (*0.2% THD)
Dynamic Power (watts/channel) @ 14.4V, 2Ω stereo, 0.2% THD, all channels driven:
- IX2302: 450 x 2
- IX1302: 260 x 2
- IX702: 140 x 2
- IX402: 80 x 2
- IX252: 40 x 2
Dynamic Power (watts) @ 14.4V, 4Ω bridged mono, 0.2% THD:
- IX2302: 900
- IX1302: 520
- IX702: 280
- IX402: 160
- IX252: 80
Dimensions (inches): 2.5H x 9.5W x L
- IX2302: 18.9
- IX1302: 13.8
- IX702: 9.8
- IX402: 7.8
- IX252: 6.3
Dimensions (mm): 63H x 241W x L
- IX2302: 482
- IX1302: 350
- IX702: 248
- IX402: 198
- IX252: 160
Frequency Response: 20Hz-20kHz ±0.5dB
Input Sensitivity: High level 1V-10V, Low level 150mV-3.0V
Signal-to-Noise Ratio: >95dB, a-weighted, re: rated power
Active Electronic Crossover: 18dB/octave, selectable @ 70Hz or 110 Hz; selectable high pass, low pass, all pass
KICKEQ™ Bass Boost: Variable to +18dB, centered @ 40Hz
KICKEQ™ Treble Boost: Variable to +12dB, centered @ 18kHz
Usage Features:
- Flexible Input Connections: The amplifier offers both high and low-level input connections, accommodating radios with either RCA or speaker level outputs. This ensures compatibility with a wide range of source units.
- Multi-Amplifier System Support: Two sets of RCA jacks on each amplifier allow for easy daisy-chaining of multiple Impulse amplifiers without the need for external RCA splitter cords, simplifying system expansion.
- Stable Operation: The amplifiers are stable at 2 Ohms stereo and as low as 4 Ohms in mono, providing flexibility in speaker impedance matching.
- Built-in Electronic Crossover: An integrated electronic crossover offers convenience, allowing users to select high-pass for satellite speakers, low-pass for subwoofers, or bypass for full-range operation. This enables precise audio tuning for different speaker types.
- Full-Range and Stereo/Mono Operation: In full-range configuration, the Kicker Impulse amplifiers can operate in both stereo and mono modes simultaneously, offering versatile sound staging options.
- KICKEQ™ Controls: Bass and Treble controls (KICKEQ™) are provided to help tune the system for ideal sound quality. These are adjustable to personal taste, with Bass Boost variable to +18dB (centered at 40Hz) and Treble Boost variable to +12dB (centered at 18kHz).
- Gain Control: A gain control allows for level matching between the amplifier and the source unit, ensuring optimal signal input without distortion. It is recommended to set the gain with the source unit at 85-95% of its maximum volume.
- Mounting Recommendations: For optimal cooling, if a vertical mounting surface is chosen, it is recommended that the heatsink fins run vertically. The amplifier chassis can be used as a template for screw locations.
- Wiring Guidelines: The manual provides detailed instructions for wiring, including the importance of connecting the ground wire first and disconnecting it last, using appropriate wire gauges, and installing an in-line fuse within 18 inches of the battery. It also emphasizes using grommets when wires pass through metal panels to prevent abrasion.
Maintenance Features:
- Auto-Resetting Protection Circuits: The amplifier incorporates auto-resetting short circuit and over-thermal protection circuits. These features automatically protect the amplifier from damage due to extreme conditions, enhancing reliability and longevity.
- MOSFET Power Supply: State-of-the-art circuitry, including a MOSFET power supply, contributes to efficient and stable operation, ensuring many years of trouble-free use.
- Glass Epoxy Circuit Boards: The use of glass epoxy circuit boards further enhances the durability and reliability of the amplifier's internal components.
- LED Indicators for Troubleshooting: The amplifier features LED indicators that change color to reflect its operational status. A green light indicates normal operation, while a red light signifies that the protection circuit has been engaged. This visual feedback aids in quick diagnosis of potential issues.
- Troubleshooting Guide: The manual includes a comprehensive troubleshooting section to help users identify and resolve common problems such as no output, protection circuit engagement (due to overheating or short circuits), and alternator noise. This guide provides step-by-step checks using a Volt Ohm Meter (VOM) and advises on proper wiring and installation practices.
- Warranty Information: Stillwater Designs offers a limited warranty, typically three years when installed by an Authorized KICKER Dealer, or one year otherwise. "B Stock" products have a one-year warranty. The warranty covers defects in material and workmanship under normal use and includes replacement or repair at the manufacturer's discretion. The manual outlines the process for obtaining warranty service, including the requirement for a Return Authorization (RA) number and dated proof-of-purchase.
- Exclusions from Warranty: The warranty does not cover products from unauthorized dealers, damage from improper installation, exposure to water/heat/chemicals/UV radiation, negligence, misuse, accident, abuse, freight damage, or modifications by unauthorized repair facilities.
- International Warranty: For international customers, the manual advises contacting their local International Stillwater Designs dealer or distributor for specific warranty procedures.
The KICKER Impulse amplifier is designed for enthusiasts seeking high-quality car audio performance with robust protection features and flexible configuration options, backed by a clear warranty and troubleshooting support.
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