- 4-CHANNEL RMS POWER: Audiopipe APMOX-165.4 delivers 4 x 110W RMS at 4 ohms, 4 x 165W RMS at 2 ohms, and 2 x 330W RMS bridged at 4 ohms.
- FULL-RANGE CLASS D DESIGN: Compact 4-channel amplifier built for door speakers, mids, tweeters, and other full-range car audio applications.
- FLEXIBLE INPUT OPTIONS: RCA and high-level inputs support aftermarket radios and compatible factory-radio integration.
- INDEPENDENT TUNING CONTROLS: Separate Channel 1/2 and Channel 3/4 gain, frequency, and HPF/FULL/LPF crossover controls help dial in your system.
- COMPACT AND RELIABLE: Small 4.9 x 5.7 x 2.5 inch chassis includes a built-in cooling fan, 50A fuse rating, and power/protect indicators.
Audiopipe 4-Channel Full Range Mini Class D Amplifier 4 x 165W RMS APMOX-165.4
This Listing Includes:
- (1) Audiopipe Amplifier APMOX-165.4
- (1) Hi-Input Harness
- (1) 50A Fuse in Fuse Holder
The Audiopipe APMOX-165.4 is a compact 4-channel full-range Class D amplifier made for builds where mounting space is limited. It delivers up to 4 x 165W RMS at 2 ohms, with separate front and rear channel controls for flexible system tuning.
Each channel pair features RCA and high-level inputs, adjustable gain, adjustable crossover frequency, and an HPF/FULL/LPF crossover switch. The compact chassis, built-in cooling fan, and power/protect indicator make it a practical choice for cars, motorcycles, golf carts, and off-road audio builds.
Features
- FULL-RANGE CLASS D DESIGN: Efficient 4-channel power for speakers, mids, tweeters, and other full-range applications.
- 4-CHANNEL RMS POWER: Delivers 4 x 110W RMS at 4 ohms or 4 x 165W RMS at 2 ohms.
- BRIDGEABLE OUTPUT: Delivers 2 x 330W RMS at 4 ohms when channels are bridged.
- RCA AND HIGH-LEVEL INPUTS: Supports aftermarket radios and compatible factory-radio installations.
- INDEPENDENT FRONT AND REAR CONTROLS: Separate gain, frequency, and crossover controls for Channel 1/2 and Channel 3/4.
- ADJUSTABLE CROSSOVERS: Select HPF, FULL, or LPF operation with a 45Hz to 850Hz crossover range.
- COMPACT CHASSIS: Measures 4.9 x 5.7 x 2.5 inches for installations with limited mounting space.
- BUILT-IN COOLING FAN: Helps maintain consistent operating temperatures.
- POWER AND PROTECT INDICATORS: Provide easy amplifier status monitoring.
Specifications:
- Amplifier Class: Full-Range Class D
- Channels: 4
- RMS Power at 4 Ohms: 4 x 110W
- RMS Power at 2 Ohms: 4 x 165W
- Bridged RMS Power at 4 Ohms: 2 x 330W
- Frequency Response: 10Hz to 25kHz
- Crossover Range: 45Hz to 850Hz
- Signal-to-Noise Ratio: 85dB, A-weighted
- Bass Boost: 0dB to 12dB
- Subsonic Filter: 45Hz
- Working Voltage: 9V to 16V
Dimensions:
- Width: 4.9"
- Length: 5.7"
- Depth: 2.5"
Ideal For
Cars, motorcycles, golf carts, off-road vehicles, compact multi-speaker builds, door speakers, mids, tweeters, and bridged full-range applications.
Accepted Payment Methods at Big Jeff Audio
At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:
Credit and Debit Cards
- Visa
- Mastercard
- American Express
- Discover
- Diners Club
Digital Wallets
- Amazon Pay
- Apple Pay
- Meta Pay (formerly Facebook Pay)
- Google Pay
- Shop Pay
- PayPal
International Payment Methods
Bank Transfers
Financing Options
We also offer financing options to make purchasing easier. Learn more about our financing options here.
- Klarna
- Affirm
- Sezzle
- Snap
- Acima
- Tiptop
If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.
Shipping Options and Delivery Time
Do You Offer Expedited Shipping?
Yes! At checkout, you can select from different shipping options:
- Standard Shipping: Free for orders over $100.
- Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.
How Long Does Delivery Take?
- Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
- Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.
What Happens If My Package Is Undeliverable?
If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.
Why Can’t I Track My Order?
If you're having trouble tracking your order:
- Make sure you’ve received the shipping confirmation email with the tracking number.
- Log into your account on our website and use the “Check Your Order Status” button.
- If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.
