2-Channel Line Output Converter 2-In, 2-Out - IOEM22
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Overview
2 Channel Line Output Converter 2-In, 2-Out
The Cerwin-Vega IOEM22 2-Channel Line Output Converter (2-In, 2-Out) is the perfect solution for upgrading your vehicle’s factory audio system with powerful aftermarket amplifiers. Designed for seamless integration, this car audio line output converter (LOC) allows you to connect a factory head unit to an external amplifier without replacing the original stereo. If you want to dramatically improve your vehicle’s sound quality while keeping your OEM system intact, the Cerwin-Vega IOEM22 is the ideal interface for the job.
Engineered for precision and performance, the IOEM22 features high-level speaker inputs that convert factory speaker signals into low-level RCA outputs, making it easy to integrate aftermarket amplifiers and subwoofers into your existing car audio system. With 40 Volts RMS high-level input sensitivity, the converter captures a wide range of audio signals while maintaining excellent clarity and accuracy.
The precision-matched stereo level gain adjustment allows users to fine-tune output levels using a simple single-dial control, making setup quick and efficient. This feature ensures your amplifier receives the correct signal level, resulting in improved audio balance and optimal performance.
The IOEM22 delivers a strong low-level RCA output of up to 9.5 Volts RMS, providing a powerful signal that helps amplifiers perform at their full potential. This high-output design improves signal strength while reducing noise and distortion, ensuring a cleaner and more dynamic listening experience.
For maximum compatibility, the converter offers selectable load input impedance settings (20Ω / 60Ω / 20KΩ), allowing installers to match the device to a wide range of factory audio systems. Additionally, advanced ground isolation options (GND / ISO / 200Ω) help eliminate unwanted noise, buzzing, or interference for a quieter and more refined audio signal.
With its compact and sleek design (3.74” x 3.9” x 0.94”), the IOEM22 is easy to install in tight spaces without cluttering your dashboard or interior.
If you're looking for a reliable way to upgrade your factory system with an amplifier, the Cerwin-Vega IOEM22 2-channel line output converter delivers the performance, flexibility, and sound quality needed for a serious car audio upgrade.
Specifications
Product Manuals
Unlock Premium Sound, Keep Your Dash
Keep your factory dashboard intact while unleashing true audiophile power. Our durable line output converters seamlessly transform standard signals into pure, high-fidelity audio for your aftermarket amplifiers.
Engineered for Pure, Distortion-Free Performance
Built for maximum durability and value, this series eliminates noise and signal loss. Experience strong, ultra-clean RCA outputs that make your subwoofers and speakers truly come alive.
Crossover, Digital Sound Processors, Signal Converter, Bluetooth Receivers - FAQ
Q1: When do I need a line‑output converter (LOC)? How should I choose between IOEM‑series LOC and compact SLMLOCT series?
A: You need a LOC when your factory head‑unit lacks RCA pre‑amp outputs, and you plan to add external amplifiers. It converts high‑level speaker‑level signals into low‑level RCA signals. IOEM models are active units with ground‑isolation and load‑select switches, ideal for complex installations prone to noise. The compact SLMLOCT series fits tight spaces for basic upgrades. Match channel count to your system: pick 2‑in‑2‑out for two‑channel builds, or 4‑in‑4‑out for multi‑amplifier setups.
Q2: What are the main differences between DSP, analogue EQ equaliser, and LOC? Can they be used together?
A: A LOC only converts signal voltage level without tone adjustment. An analogue graphic EQ lets you manually adjust frequency bands as an analogue pre‑stage. Digital DSP offers crossovers, time‑alignment, phase adjustment and parametric EQ via tuning software. They can be combined properly: the factory signal feeds a LOC, then passes to DSP and onwards to amplifiers. Avoid cascading multiple analogue EQ units, as this will raise the noise floor and degrade sound quality.
Q3: Can BTR‑series Bluetooth receivers work without a factory head‑unit? What vehicles are they suitable for?
A: BTR Bluetooth receivers operate standalone without an OEM radio, outputting RCA audio to amplifiers. They work great for UTVs, jet‑skis, motorcycles and off‑road vehicles with no stock head‑unit. They can also add wireless streaming to existing car‑audio systems. Check model specs; select water‑resistant variants for rough outdoor and wet environments.
Q4: Will the CHGLIRCA ground‑loop isolator definitely fix alternator whine noise?
A: The CHGLIRCA isolator suppresses ground‑loop noise, yet it is not a universal fix. When you hear engine‑speed‑dependent whine, first verify all devices are grounded to bare chassis metal, route RCA cables away from power wires, and set the correct load‑select switches on your LOC. Add the isolator only after proper wiring has been completed. It cannot eliminate noise originating from a contaminated vehicle power supply.
Q5: What installation tips apply to DSP processors? Will a DSP drain my car battery?
A: DSP units require 12V constant power, ground and a REM turn‑on signal. Use ACC‑switched power so the unit sleeps automatically at ignition‑off to prevent battery drain. Mount away from heat and moisture. Physical installation is not complete without tuning: configure crossovers, time‑alignment and EQ with official software. Keep input/output gain moderate to prevent signal clipping. Professional shop tuning is recommended if you are unfamiliar with DSP tuning workflows.