The Beat-Sonic ENA-2S1 is a plug-and-play amplifier kit that dramatically improves the sound quality of your factory Subaru stereo - no cutting, no harness modifications, and no need to replace your head unit or speakers. More clarity. More bass. More detail. All from a single compact unit that installs in under two hours. Professional local installation available in La Mirada, Southern California. Contact us at [email protected] to book. Why your factory stereo sounds underwhelming - and how the ENA-2S1 fixes it Subaru factory head units are built to a cost. The amplifier stage inside your OEM radio or external amplifier is one of the first areas where manufacturers cut corners, resulting in a flat, compressed sound even through otherwise decent factory speakers. The ENA-2S1 solves this by strengthening and optimizing the audio signal before it reaches your factory amplifier - giving it a cleaner, more powerful signal to work with, and allowing your factory system to perform closer to its true potential across all frequency ranges. Your factory head unit, steering wheel controls, and speakers all stay in place and continue to work exactly as before. You simply get the sound your system was always capable of - finally unlocked. Key features Plug-and-play installation - no special tools, no harness modifications, no cutting 45W x 4-channel output - significantly more power than factory head unit amplification Harman Kardon compatible - works with or without Harman Kardon. Some models will require an additional required module that is included if you selected "Without Harman Kardon" on the drop down menu. High-quality FET op-amp input stage - reproduces fine musical detail including voice tone and breath at high resolution Ultra-compact design - flexible installation location, fits easily behind the dash High-level speaker input - additional RCA high-level input for even higher quality signal connection for an external media player Premium acoustic components - low-impedance capacitors and 70μ extra copper thickness for improved frequency response across low, mid, and high ranges Retains factory head unit - your display, controls, and all factory features continue to work normally Compatible with aftermarket speakers - keep impedance at 4Ω-8Ω when using aftermarket speakers Made in Japan Specifications Maximum output: 45W x 4ch (4Ω) Compatible impedance: 4-8Ω Input sensitivity: 0.5-5V Frequency response: 15-80kHz (+0, -1dB) Total harmonic distortion: 0.01% (1kHz / 4Ω) Power supply: DC12V (minus ground), DC11V-15V range Current consumption: 0.2A (no signal) Fuse: 15A Audio input: AUX level (RCA) + speaker level (high-level input) Dimensions: 96mm (W) x 40mm (D) x 113.5mm (H) Weight: 420g Compatible vehicles The ENA-2S1 is compatible with the following Subaru and Toyota models: Toyota 2022-2026 Toyota GR86 Subaru 2013-2026 Subaru BRZ 2013-2017 Subaru Forester 2018-2026 Subaru Forester - without Harman Kardon (requires VAZ-A02K module) 2015-2020 Subaru Impreza 2021-2026 Subaru Impreza - without Harman Kardon (requires VAZ-A02K module) 2015-2020 Subaru Legacy 2021-2025 Subaru Legacy - without Harman Kardon (requires VAZ-A02K module) 2016-2019 Subaru Outback 2020-2025 Subaru Outback - without Harman Kardon (requires VAZ-A02K module) 2016-2021 Subaru WRX 2022-2026 Subaru WRX - without Harman Kardon (requires VAZ-A02K module) 2016-2023 Subaru Crosstrek 2024-2027 Subaru Crosstrek - without Harman Kardon (requires VAZ-A02K module) Note: Select newer Subaru models without Harman Kardon require the VAZ-A02K adapter module for installation. This is selected at the time of purchase using the audio system option on this page. Not sure which option applies to your vehicle? Email [email protected] with your year, model, trim, and audio system before purchasing. Installation No special tools required. No modifications to the factory wiring harness. Most owners complete the install in under two hours using our step-by-step YouTube video guides. Professional installation is available in Southern California through Beat-Sonic directly, or through our authorized installer network worldwide. Email [email protected] with your location or zip code to find the nearest shop. Frequently asked questions Will I need to replace my factory speakers or head unit?No. The ENA-2S1 works with your existing factory head unit and speakers. You keep everything in place - the amp simply adds power and clarity to what you already have. Is this compatible with aftermarket head units?The ENA-2S1 works with aftermarket head units as long as the factory head unit retains the factory connectors that our ENA-2S1 plug and play harness connects to. Is this compatible with Harman Kardon factory systems?Yes, Harman Kardon equipped models are compatible. When placing your order, select your audio system option (with or without Harman Kardon) to ensure you receive the correct harness configuration. If you are unsure which option applies to your vehicle, email [email protected] with your year, model, and trim before purchasing. What is the VAZ-A02K module and do I need it?The VAZ-A02K is a required adapter module for select newer Subaru models without Harman Kardon. If your vehicle is listed with "without Harman Kardon requires VAZ-A02K" in the compatibility list above, simply select "Without Harman Kardon (includes required module)" when ordering - the module will be included with your kit. Can I use aftermarket speakers with this amp?Yes. If using new aftermarket speakers, keep the impedance at 4Ω-8Ω for non-amplified models. Will my steering wheel controls still work?Yes. All factory features including steering wheel controls and your factory display continue to work normally. What is the RMS output vs. peak output?The 45W x 4ch rating is peak output. RMS is the continuous power output your amp delivers - peak is during short bursts. This is standard across the amplifier industry. How long does installation take?Most installs take about 2 hours following our YouTube video guide. Professional installation is available in Southern California or through our authorized installer network worldwide. Does this ship to Canada or internationally?Yes. We ship to Canada and Mexico.
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