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PROP 65 WARNING
Dual-Feedback Modulation Loop
When playing music, a clean, distortion-free, low-power signal input to an amplifier should exit as an identical high-power output signal to drive your speakers. In reality, most amps dont even come close to this ideal, instead adding significant audible distortion especially in the high frequencies, earning typical Class-D amplifiers a deserved reputation for bad sound. The PDR-Powers Global Modulation with Adaptive Feedback Control loop circuitry intelligently assures the power output is as clean and distortion-free as possible. Their real-time error-correction analyzes the signal not only once, but twice by comparing input signal with the output throughout the entire amplification process. In doing so, PDR-Power amplifiers ensure that their output signal delivers a clean, clear and powerful sound that must be heard to be believed.¬†
Small, Powerful Design
The new PDR-Power series amplifiers have decreased in size compared to the X-Power, yet they pack in much more flexibility, durability with Alpine sound quality.¬†
Standing Alone in the Clarity Class
Ultra-Wide Frequency Bandwidth: This super-wide, industry leading frequency range offers listeners unparalleled sound quality and detail that bests even the most high-end audiophile equipment.
Best Signal-to-Noise: In order to ensure that all of the industry-leading sound quality is heard at your ears, weve worked to create a platform that offers an unbelievably low noise floor, taking extra care to ensure a clean signal path, with no extraneous inferences.
Low Distortion: PDR-Power amps offer extremely wide and linear frequency response that results in unparalleled musical detail. Extremely low distortion means pure musical performance without audible artifacts to destroy your sound experience. Additionally, these amps have extremely high stereo separation and smooth phase response, which means more dynamic realistic imaging and staging for your total musical enjoyment. On the Mono side, best-in-class low distortion and tight control will give you clean, accurate bass response.
PDX Technology Inside (Cont.)
Highest Damping Factor: With ultra-low output impedance, the new PDR-Power offers extremely controlled, tight bass for unprecedented sound quality. Damping Factor ratings are >1300 for Mono and >500 for full range models.
Sharper -24dB/octave slope: Ensuring that your sub plays longer, accurate and cool the new PDR-Power has a -24dB octave slope in the built-in low pass filter. A sharper slope to the subwoofer allows only the desired low-end frequencies play through your subwoofer.
Excessive heat is the enemy of amplifiers and under extreme conditions will result in most amps shutting down completely. PDR-Power amps use a special Multi-Stage Power Management circuit that continuously monitors critical component temperatures throughout the amplifier and decreases power output if anything gets too hot. If you are playing music under heavy loads for long periods, the circuit automatically reduces power output slightly at first, and then further in a second stage if necessary. This two-stage approach provides seamless, interruption free listening experience for non-stop music playback.
Rotatable Illuminated Alpine Badge
PDR-Power amplifiers come with a rotatable illuminated badge that makes a very attractive presentation when mounted vertical or horizontally.
Topside Controls and Adjustments
Topside controls on top of the PDR-Power amplifiers make installation and tuning easier than its predecessors. Just unscrew two fasteners and youll have access to all the controls needed to tune the amplifier. Their small size and versatile controls allow the PDR-Power amplifiers to easily be added to either an aftermarket or factory system and can be setup to accommodate a variety of system configurations.
The PDR-Power amplifiers will automatically turn on when voltage is detected on their speaker-level inputs, which makes them great for easy factory system upgrades.
Proven PowerCertified From Birth
All PDR-Power amplifiers are individually tested and have certified power ratings. Each amp comes with their very own verification certificate documenting its actual power output exceeds the rating by a wide margin.
- Alpine PDR Series 4-Channel Class D Car Amplifier
- RMS Power Rating @4 ohms: 85 watts x 4 channel
- RMS Power Rating @ 2 ohms: 125 watts x 4 channel
- RMS Power Rating @ Bridged, 4 ohms: 250 watts x 2 channel
- CEA-2006 Compliant Amplifier
- Dual-Feedback Modulation Loop
- Ultra Compact Chassis
- Soft start turn-on
- Rotatable Illuminated Alpine Badge
- LED Power (blue) and Protect (red) illumination
- Top-Side Control Panel w/ Removable Cover
- Voltage ON/OFF Sensing for OEM Upgrade
- 4/3 or 2 channel operation
- Input channel selecting
- Speaker-level (high-level) inputs via RCA with Remote Sensing*
- 3-way protection circuitry (thermal, overload, and speaker short protection)
- Heavy duty aluminum alloy heat-sink
- Input sensitivity: 200 mV - 4 V
- Frequency Response: 8 - 45,000 Hz +0/-3 dB
- Total Harmonic Distortion (THD): 0.02% (Ref: 10W into 4Ohm)
- Signal to Noise Ration: >106dB (Ref: 1W into 4Ohm)
- Damping Factor: >500
- Selectable crossover: OFF / HP / LP
- Variable crossover point: 50 - 400 Hz, 24 dB/octave
- Selectable Bass Boost (Rear Ch Only): 0, +6, +12 dB boost at 50 Hz
- Fuse Rating: 30 A x 2
- Weight: 5 lb 9 oz
- Dimensions: 9.0"Wx 6.5"Lx 2.0"H
- 1 Year Manufacturer's Warranty
Number of Channels
Peak Power Rating (Watts)
RMS Power Rating (Watts x Channels) - 4 Ohms
85 x 4
RMS Power Rating (Watts x Channels) - 2 Ohms
125 x 4
|RMS Power Rating - Bridged||250 x 2|
|Minimum Impedance Unbridged (Ohms)
|Minimum Impedance Bridged (Ohms)
|THD at Rated RMS Power
|Bulit-in Crossover - Low Pass
|Built-in Crossover - High Pass
|High Pass Crossover Frequency (Hz)
|Low Pass Crossover Frequency (Hz)
||0, 6, 12dB
|Bass Remote Included
|Maximum Power Wire Gauge Size||4 gauge|
You may return most new, unopened items within 60 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund much quicker. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.