Mobile Electronics Transponders and Components

Blaupunkt

4-Channel Class D Amplifier

$149.00

SKU: BPA-404Mi

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
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Moderate — 2–4 hours

Overview

The Blaupunkt BPA-404Mi is a 4-channel Class D amplifier designed for car audio systems. It features high and low-pass filters to allow for precise sound customization. The amplifier offers a maximum output of 1000W and various RMS power outputs depending on the impedance.

With its ultra-compact design measuring 2.17 x 4.88 x 4.92 inches, the BPA-404Mi is easy to install in discreet locations such as underneath car seats. Its Class D amplification ensures high efficiency, reduced heat, and a compact form factor.
Show original supplier description
The Blaupunkt BPA-404Mi is a 4-channel Class D amplifier engineered for car audio applications, offering a blend of power and compact design. Its high-efficiency Class D technology minimizes heat generation, enabling its small footprint of 2.17 x 4.88 x 4.92 inches, making it ideal for installation in tight spaces like under car seats. This amplifier delivers robust audio performance with a maximum output of 1000W. It provides flexible power configurations, including 2 x 200 RMS - 400W at 4 ohms, 4 x 105 RMS - 420W at 2 ohms, and 4 x 60 RMS - 240W when bridged at 4 ohms. The BPA-404Mi is equipped with adjustable High Pass Filters (10Hz - 2.5kHz) and Low Pass Filters (60Hz - 22kHz), allowing users to fine-tune their audio system for optimal sound quality and speaker performance. Included with the amplifier is a 25A fuse to ensure proper electrical protection. The frequency range of 10Hz - 22000Hz and a signal-to-noise ratio of 90dB contribute to clear and detailed sound reproduction. Blaupunkt, a brand with a legacy in German engineering since 1924, is known for its durable and high-performing audio products.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandBlaupunkt
Part NumberBPA-404Mi
CategoryMobile Electronics

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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