GM-DX874

$220.00

$270.00

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4-Channel – Hi-Res Certified, Class FD, 1200 W Max Power – Digital Amplifier

Features

Hi-Res Audio Certified

100W x 4 RMS @ 4 ohms (1%THD)

150W x 4 MAX @ 4 ohms (1%THD)

Variable High Pass and Low-Pass Filters

Gold-plated RCA Terminals

Wired Bass Remote included

Overview
Specs
Knowledgebase
Manuals/Warranty

Pioneer GM-DX874 4-Channel Car Amplifier

The Pioneer GM-DX874 four-channel amplifier delivers 100 watts RMS at 4 ohms to each of your front and rear speakers for powerful music. CTA-2006 compliant, this highly efficient Class D technology provides impressive, high-quality power in a compact chassis. The frequency response extends up to 50,000 Hz, supporting crystal-clear Hi-Res Audio Certified playback. The GM-DX874 uses high-grade electronic components and gold-plated RCA connections to ensure maximum performance.

You can configure your amplifier into 3-channel mode (4 ohm loads) to create a strong front soundstage (2x 75 watts RMS) with tight bass from the bridged subwoofer (1x 300 watts RMS). The speaker-level inputs allow you to install this amp in a factory system without RCA connections. Built-in high-pass and low-pass filters let you optimize the sound for your vehicle's interior. A wired bass control remote also lets you easily control the amount of bass from the subwoofer output (SW).

Turn Up the Bass

This amplifier features a wired bass control remote for optimal bass level adjustment according to your listening preferences and the characteristics of the music.

Big Power-Small Size

Pioneer’s extra-efficient Class-D amplifiers mark a dramatic improvement in power output capability, yet are 50% smaller than the current GM-Series Class-AB amplifiers. That makes them more versatile in terms of installation as well as performance.

Packs a Punch

The 4-channel amplifier is rated at a total of 1200 watts, with the A and B channels rated at 150 watts x 4 (RMS) at 2 ohms, or 300 watts (RMS) at 4 ohms x 2 when bridged. Compared to similarly priced multi-channel amplifiers, the variable crossover networks on the GM-DX874 offer increased flexibility and give listeners more control. This amplifier also features angled terminals for a cleaner installation and direct wire contact to maximize power transfer.

Automatic Signal sensing and Turn-On

When used with an audio source such as an OEM source or a receiver without RCA output, the amplifier will activate as soon as an audio source is detected through the speaker level outputs. When using a pre-amplified source (RCA), this Pioneer amplifier will use the signal (+12Vdc) from the "Remote" input for activation.

High-Quality Affordable Design

To prevent poor bass performance in demanding situations, such as heavy bass content or dynamic range music, Pioneer designed a high-quality power supply to sustain constant power requirements. This design enhances audio performance by providing a better signal-to-noise ratio, improved audio dynamics, sustained bass when needed, and, most importantly, a more enjoyable ride in your car!

Hi-Res Certified

An optimal printed circuit board design reduces signal interference, improves channel separation, and provides better dynamics and lower distortion. Audio film capacitors and a low-impedance coil for the output filter are used to ensure excellent sound quality. Audio tuning based on the reproduction of the original audio source allows listeners to experience the difference in sound quality. With sound data that exceeds the volume of CD sound information, this amplifier reproduces outstanding audio quality from high-resolution audio sources, offering incredibly lifelike sound.

Gold Plated Terminals

These terminals provide the ability to maintain an accurate signal with increased electrical conductivity, prevent corrosion and provide enhanced durability with excellent resistance against wear.

Pioneer’s TVC (Total Vibration Control)

Pioneer's TVC (Total Vibration Control) concept used in this amplifier not only increases the rigidity of the unit but also counteracts vibrations that affect sound quality at various points. The fixing points of the main board are optimized to completely suppress external vibrations and small vibrations caused by circuit parts. It adopts a heat sink structure that optimizes the position of large components, mounting screws, heat dissipation, and mechanical vibration suppression.

Protection Control System (PCS)

Pioneer’s PCS continuously monitors the input voltage, current consumption, and operating temperature to automatically adjust the amplifier’s output, ensuring operational stability during long listening sessions or when installed in high-temperature environments.

Independent Variable Filters

The amplifier features a variable high-pass filter (HPF) and a variable low-pass filter (LPF) ranging from 40 Hz to 500 Hz to precisely adjust the audio bandwidth and optimize the acoustic performance of your speakers and/or subwoofer. Additionally, to give you even more control, these filters are completely independent for channel "A," channel "B," and the subwoofer output (SW).

AMP FEATURES
Bass Boost Remote Yes	Bridgable Yes
Class D	Grounding System Negative
High Quality Audio Components Yes	Power Source 14.4V (10.8 V to 15.1 V allowable)
Protection Control system Yes	Terminal Type Block
Unit Weight 5.5 lbs

AMP FEATURES
Bass Boost Remote Yes
Bridgable Yes
Class D
Grounding System Negative
High Quality Audio Components Yes
Power Source 14.4V (10.8 V to 15.1 V allowable)
Protection Control system Yes
Terminal Type Block
Unit Weight 5.5 lbs

PRODUCT PERFORMANCE
Allowable Load Impedance 1 ohm to 8 ohm allowable	Avg Current Consumption (amps x #ch) 3.1 A x 4-Channel - 4 Ohm,4.4 A x 2-Channel - 4 Ohm,4.4 A x 4-Channel - 2 Ohm
Bass Boost 50 Hz - Frequency	Continuous-Power-Output 100 W RMS x 4-Channel - 4 Ohm,125 W RMS x 4-Channel - 1 Ohm,150 W RMS x 4-Channel - 2 Ohm,300 W RMS x 2-Channel - 4 Ohm Bridged
Crossover Network Channel HPF - A/B Ch 40Hz-500Hz,LPF - A/B Ch 40Hz-500Hz	Crossover Network Channel Slope -12db/oct (A/B CH)
Frequency Response Channel 10 Hz to 50 kHz (+0dB,-3dB) A/B Ch	Fuse Rating 30A x 2
Maximum Power Output 200 W x 4-Channel (4 Ohm),600 W x 2-Channel (4 Ohm Bridged)	RCA Inputs 4-Channel
RCA Preamp Outputs 2-ch	Speaker Line input Sensor Yes
THD-A/B/C Channel =/< 1% (20 Hz to 240 Hz)

PRODUCT PERFORMANCE
Allowable Load Impedance 1 ohm to 8 ohm allowable
Avg Current Consumption (amps x #ch) 3.1 A x 4-Channel - 4 Ohm,4.4 A x 2-Channel - 4 Ohm,4.4 A x 4-Channel - 2 Ohm
Bass Boost 50 Hz - Frequency
Continuous-Power-Output 100 W RMS x 4-Channel - 4 Ohm,125 W RMS x 4-Channel - 1 Ohm,150 W RMS x 4-Channel - 2 Ohm,300 W RMS x 2-Channel - 4 Ohm Bridged
Crossover Network Channel HPF - A/B Ch 40Hz-500Hz,LPF - A/B Ch 40Hz-500Hz
Crossover Network Channel Slope -12db/oct (A/B CH)
Frequency Response Channel 10 Hz to 50 kHz (+0dB,-3dB) A/B Ch
Fuse Rating 30A x 2
Maximum Power Output 200 W x 4-Channel (4 Ohm),600 W x 2-Channel (4 Ohm Bridged)
RCA Inputs 4-Channel
RCA Preamp Outputs 2-ch
Speaker Line input Sensor Yes
THD-A/B/C Channel =/< 1% (20 Hz to 240 Hz)

GM-DX874

$220.00

$270.00

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End User License Agreement

This End-User License Agreement was last revised on December 16, 2019 (version 1.0).

THIS END USER LICENSE AGREEMENT (“LICENSE”) IS A LEGAL AGREEMENT BETWEEN YOU (BOTH THE INDIVIDUAL INSTALLING THE PROGRAM AND ANY SINGLE LEGAL ENTITY FOR WHICH THE INDIVIDUAL IS ACTING) (“YOU” OR “YOUR”) AND PIONEER CORPORATION, [0406.999.132 (PIONEER EUROPE NV)], LOCATED AT 28-8, HONKOMAGOME 2-CHOME, BUNKYO-KU, TOKYO 113-0021, JAPAN (“PIONEER,” “WE” OR “US”). YOU AGREE THAT THIS LICENSE IS ENFORCEABLE LIKE ANY WRITTEN NEGOTIATED AGREEMENT SIGNED BY YOU. THIS LICENSE APPLIES TO THE USE OF THE SOFTWARE AND DOCUMENTATION (DEFINED BELOW). PLEASE READ THIS LICENSE CAREFULLY.

DO NOT CLICK ON THE BUTTON BELOW THAT INDICATES YOU ACCEPT THIS LICENSE OR USE THE SOFTWARE UNTIL YOU HAVE READ AND AGREED TO BE BOUND BY THIS LICENSE.

YOU ARE ACKNOWLEDGING:

THAT YOU HAVE READ THIS LICENSE,
THAT YOU UNDERSTAND IT, AND
THAT YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS OF THIS LICENSE,

IF YOU

CLICK THE ACCEPTANCE BUTTON ON THE ELECTRONIC VERSION OF THIS LICENSE, OR
INSTALL OR USE ANY PART OF THE SOFTWARE.

IF YOU ARE NOT OLD ENOUGH UNDER THE LAWS OF YOUR LOCATION TO BE ABLE TO AGREE TO THESE TERMS, YOUR PARENT OR GUARDIAN MUST AGREE TO THESE TERMS FOR YOU BEFORE YOU INSTALL OR USE THE SOFTWARE. PIONEER DOES NOT INTEND OR KNOWINGLY PROVIDE THE SOFTWARE FOR USE BY CHILDREN UNDER 16.

IF YOU DO NOT ACCEPT THE TERMS AND CONDITIONS OF THIS LICENSE, DO NOT CLICK ON THE BUTTON BELOW THAT INDICATES THAT YOU ACCEPT THIS LICENSE AND DO NOT INSTALL OR USE ANY PART OF THE SOFTWARE.

1. DEFINITIONS 1.1 "Documentation" means written documentation help content made generally available by Pioneer to aid in using the Software. 1.2 "Software" means the firmware update provided to You by Pioneer solely for Your use with the Product(s). 1.3 "Product" means the multimedia receiver model distributed and sold by Pioneer for which the Software is licensed. 1.4 "Licensor" means the third party who licenses you to use copyrights, trademark rights and other intellectual property rights related to content, text, images, data, software, and information that are adopted in the Software.

2. LIMITED LICENSE

2.1 Authorized Use. Pioneer grants You a limited, non-exclusive, non-transferable, royalty-free license to install and use the Software solely with the Product(s).
2.2 Restrictions. You will not copy or use the Software or Documentation except as expressly permitted by this License. You will not distribute, transfer, sublicense, rent, lease, lend, sell, or otherwise allow any third party to use the Software. You will not modify, reverse engineer, decompile, disassemble, or otherwise reduce the Software to a human-perceivable form, except to the extent expressly permitted by applicable law, and then only after You have notified Pioneer in writing of Your intended activities.
2.3 Export Controls. You may not use or otherwise export or re-export the Licensed Software or Documentation except as authorized by United States law and the laws of the jurisdiction in which the Licensed Software or Documentation was obtained. In particular, but without limitation, the Licensed Software or　 Documentation may not be exported or re-exported (a) into any U.S.-embargoed countries or (b) to anyone on the U.S. Treasury Department's Specially Designated Nationals List or the U.S. Department of Commerce Denied Persons List or Entity List. By using the Licensed Software or Documentation, you represent and warrant that you are not located in any such country or on any such list. You also agree that you will not use the Licensed Software or Documentation for any purposes prohibited by United States law, including, without limitation, the development, design, manufacture, or production of nuclear, missile, or chemical or biological weapons.
2.4 Ownership. You acknowledge any right, title or interest in the Software and Documentation, including but not limited to, patent, trademark, design, copyright or any other intellectual property rights, shall remain with Pioneer and/or its Licensor and no right, title or interest in the Software and Documentation is granted or transferred under this License, except for the right granted hereunder. You agree that You do not acquire any rights, express or implied, beyond the limited license in Section 2.1.
2.5 Restricted Rights Legend With respect to government end users in the United States, the Software is “commercial computer software” or “commercial computer software documentation” as those terms are defined in 48 C.F.R. 252.227-7014(a)(1) (2007) and 252.227-7014(a)(5) (2007). The U.S. Government’s rights with respect to the Software are limited by this License pursuant to FAR §§ 12.212 (Computer Software) (1995) and 12.211 (Technical Data) (1995) and/or DFAR 227.7202-3, as applicable. As such, the Software is being licensed to the U.S. Government end users: (a) only as “Commercial Items” as that term is defined in FAR 2.101 generally and as incorporated in DFAR 212.102; and (b) with only those limited rights as are granted to the public pursuant to this License. Under no circumstance will the U.S. Government or its end users be granted any greater rights than we grant to other users, as provided for in this License. Manufacturer is Pioneer Corporation, 28-8, Honkomagome 2-chome, Bunkyo-ku, Tokyo, 113-0021 Japan.
2.6 Corrections; No Support While Pioneer may choose to make corrections to the Software available, Pioneer is not obligated to provide any such corrections or any support, maintenance or updates of the Software or Documentation.

3. DISCLAIMER OF WARRANTIES. SINCE THE SOFTWARE IS LICENSED FREE OF CHARGE TO YOU, PIONEER WARRANTS ONLY THAT THE SOFTWARE HAS BEEN DEVELOPED AND MADE AVAILABLE IN ACCORDANCE WITH THE USUAL STANDARDS IN THE INDUSTRY FOR FREE OF CHARGE SOFTWARE. IN ALL OTHER RESPECTS, THERE IS NO WARRANTY FOR THE SOFTWARE, AND THE SOFTWARE IS PROVIDED “AS IS AND WITH ALL FAULTS.” TO THE MAXIMUM EXTENT PERMITTED UNDER APPLICABLE LAW, PIONEER, ITS SUPPLIERS AND LICENSORS DISCLAIM ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT, AND YOU USE THE SOFTWARE AT YOUR OWN RISK.

WITHOUT LIMITING THE FOREGOING, PIONEER AND ITS SUPPLIERS AND LICENSORS DO NOT WARRANT THAT:

THE SOFTWARE WILL BE ERROR-FREE,
YOUR USE OF THE SOFTWARE WILL BE UNINTERRUPTED OR ERROR-FREE,
THE SOFTWARE WILL MEET YOUR REQUIREMENTS, OR
THE SOFTWARE WILL OPERATE WITH THE HARDWARE OR SOFTWARE CONFIGURATION YOU CHOOSE.

NO WRITTEN OR ORAL STATEMENTS BY PIONEER GROUP OR OTHERS WILL CONSTITUTE WARRANTIES OF PIONEER. “PIONEER GROUP” MEANS PIONEER AND ITS SUBSIDIARIES AND OTHER AFFILIATES, AND THEIR OWNERS, DIRECTORS, OFFICERS, EMPLOYEES, AGENTS, SUPPLIERS, DISTRIBUTORS, DEALERS, LICENSORS AND OTHER REPRESENTATIVES.

4. LICENSE BREACH. You agree that any breach of the restrictions in this License would cause Pioneer irreparable harm for which money damages alone would be inadequate. In addition to damages and any other remedies to which Pioneer may be entitled, you agree that Pioneer may seek injunctive relief to prevent the actual, threatened or continued breach of these License terms.

5. CHANGES TO THIS LICENSE. Pioneer may modify this License at any time. Pioneer will provide advance notice of the changes and the effective date by posting a notice on this site or by other appropriate means. Your use of the Product(s) after such notice will constitute Your agreement to the revised License.

6. TERMINATION. This License is effective until terminated. You may terminate this License at any time upon Your destruction and deletion the Software and Documentation. Pioneer may terminate this License at any time upon Your breach of any provision. If this License is terminated, you will stop using the Software and Documentation and destroy all copies in Your possession, confirming to Pioneer that You have done so. Sections 2.2, 2.3, 3, 4 and 7 will continue in effect after this License's termination.

7. GENERAL TERMS

7.1 Governing law. If You are a resident of any European Economic Area (EEA) member state, this License is governed by and will be construed in accordance with Belgian law. If You are a resident of the United States, this License is governed by and will be construed in accordance with the laws of the State of California, U.S.A. If You are a resident of Canada, this License is governed by and will be construed in accordance with the laws of the Province of Ontario and the federal laws of Canada. If You are resident of any territory outside the EEA, United States, or Canada, this License is governed by and will be construed in accordance with the laws of Japan.
7.2 Jurisdiction. The parties will use good faith efforts to resolve amicably any dispute or controversy that may arise out of or in relation to or in connection with this License, or any breach hereof. In the event no amicable settlement can be reached, if You are a resident of an EEA member state, the parties can choose to finally settle all claims arising out of or relating to this License (including its formation, interpretation, applicability, enforceability, performance and breach) by binding arbitration. If You are a resident of a territory other than an EEA member state, all such claims shall be finally settled by binding arbitration as provided herein. If parties agree to settle claims by arbitration, such arbitration shall be conducted under the arbitration rules of the International Chamber of Commerce by three arbitrators designated in accordance with those rules. If You are a resident of an EEA member state, then the arbitration shall be held in Brussels, Belgium, in the English language. If You are a resident of the United States, then the arbitration shall be held in one of three regional venues (New York, New York; Dallas, Texas; or Los Angeles County, California). If You are a resident of Canada, the arbitration shall be held in one of three regional venues (Vancouver, BC, Toronto, ON, or Quebec, QC). If You are a resident of any other territory, then the arbitration shall be held in Tokyo, Japan. The award of arbitration will be final and binding upon other parties and will have the reasoning therein. For residents of EEA member states, in case the parties do not agree to settle claims through arbitration, the Belgian courts shall have exclusive jurisdiction to settle all claims arising out of or relating to this License (including its formation, interpretation, applicability, enforceability, performance and breach). For residents of Canada, if the arbitration provision is not enforceable, the parties submit to the exclusive jurisdiction of the courts located in the city of Toronto, unless otherwise prohibited by law.
7.3 EXCLUSION OF REMEDIES. TO THE MAXIMUM EXTENT PERMITTED UNDER APPLICABLE LAW, IN NO EVENT, EXCLUDING PIONEER’S WILLFUL MISCONDUCT, GROSS NEGLIGENCE, OR IN THE EVENT OF THE DEATH OR PHYSICAL INJURY OF THE USER AS A RESULT OF THE ACTS OR OMISSIONS OF PIONEER, WILL ANY OF PIONEER GROUP OR ITS THIRD PARTY SUPPLIERS OR LICENSORS BE LIABLE TO YOU OR ANYONE ELSE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE, EXEMPLARY OR CONSEQUENTIAL DAMAGES OF ANY KIND (INCLUDING, WITHOUT LIMITATION, LOST DATA OR ECONOMIC LOSS) ARISING OUT OF OR IN ANY WAY RELATING TO THIS LICENSE, INCLUDING YOUR USE OF OR INABILITY TO USE THE SOFTWARE REGARDLESS OF THE CAUSE OF ACTION ON WHICH THE CLAIM IS BASED, EVEN IF PIONEER GROUP OR ITS THIRD-PARTY SUPPLIERS OR LICENSORS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR CLAIM.
7.4 LIMITATION OF LIABILITY. TO THE MAXIMUM EXTENT PERMITTED UNDER APPLICABLE LAW, IN NO EVENT UNDER ANY THEORY OF LIABILITY, EXCLUDING PIONEER’S WILLFUL MISCONDUCT, GROSS NEGLIGENCE, OR IN THE EVENT OF THE DEATH OR PHYSICAL INJURY OF THE USER AS A RESULT OF THE ACTS OR OMISSIONS OF PIONEER, WILL THE AGGREGATE LIABILITY OF PIONEER GROUP AND THE THIRD-PARTY SUPPLIERS AND LICENSORS FOR ANY DAMAGES OR CLAIMS ARISING OUT OF OR RELATING TO THIS LICENSE OR ITS SUBJECT MATTER OR ANY PRODUCT, WHETHER IN CONTRACT, TORT OR OTHERWISE, EXCEED TEN US DOLLARS (US$10.00) OR THE PRICE PAID FOR THE PIONEER PRODUCT FOR WHICH THE SOFTWARE IS PROVIDED, WHICHEVER IS GREATER. PIONEER GROUP’S AND THE THIRD-PARTY SUPPLIERS’ AND LICENSORS’ LIMITATION ON LIABILITY IS CUMULATIVE, WITH ALL OF PIONEER GROUP’S AND THIRD-PARTY SUPPLIERS’ AND LICENSORS’ PAYMENTS IN SATISFACTION OF THEIR LIABILITIES BEING AGGREGATED TO DETERMINE SATISFACTION OF THIS LIMIT.
7.5. YOUR SPECIFIC RIGHTS. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF DAMAGES OR LIMITATION OF LIABILITY, SO THE ABOVE EXCLUSIONS OR LIMITATIONS, TO THE EXTENT PROHIBITED BY APPLICABLE LAW, MAY NOT APPLY TO YOU. YOUR SPECIFIC RIGHTS MAY VARY FROM JURISDICTION TO JURISDICTION.
7.6 ESSENTIAL PURPOSE. UNLESS LIMITED OR MODIFIED BY APPLICABLE LAW, THE FOREGOING DISCLAIMERS, EXCLUSIONS AND LIMITATIONS APPLY, EVEN IF ANY REMEDY FAILS FOR ITS ESSENTIAL PURPOSE.
7.7 Severability and Waiver. If any provision of this License is held to be illegal, invalid or otherwise unenforceable, that provision will be enforced to the extent possible or, if incapable of enforcement, deemed to be severed and deleted from this License, and the remainder will continue in full force and effect. Any waiver of any breach or failure to enforce any provision of this License will not be deemed a future waiver of such term or a waiver of any other provision.
7.8 No Assignment. You may not assign, sell, delegate or otherwise transfer this License or any rights or obligations under it, without Pioneer's prior written consent. Pioneer may freely assign or transfer this License or any of its rights or obligations under it. Pioneer will, however, assign or transfer this License or any of its rights or obligations under this License with notice in advance if the assignment or transfer has an impact on your guarantees.
7.9 Entire Agreement. This License constitutes the entire agreement between You and Pioneer with respect to the Software and Documentation. This License may not be modified or amended without Pioneer's prior and express written consent, and no other act, document, usage or custom will be deemed to amend or modify this License. The term “including” means “including without limitation.”

8. CONTACT US. If You have any questions or complaints about this License, You may contact us by visiting https://global.pioneer/en/product_support/support/ or by postal mail at one of the following addresses:

Pioneer Corporation
Attn: Customer Support
28-8, Honkomagome 2-Chome Bunkyo-Ku, Tokyo 113-0021, Japan

Pioneer Electronics AsiaCentre Pte. Ltd.
Attn: Service Centre
2 Jalan Kilang Barat, #07-01 Singapore 159346

Pioneer Europe NV
Attn: Customer Support
Haven 1087, Keetberglaan 1 9120 Melsele, Belgium

Pioneer Electronics (USA) Inc.
Attn: Service & Support
970 W. 190th Street, Suite 360, Torrance, CA 90502 U.S.A.

Revised: Version 1.0: December 16, 2019

Overview

Pioneer GM-DX874 4-Channel Car Amplifier

GM-DX874