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tDames | Staff 10.2K Views
Feb 11, 2026 9:36 PM

Black Diamond DIA-P1000X1D Amplifier + 2x DS18 GEN-X124D 12” Subwoofer Bundle

$278

$435

36% off
+ Free Shippingat eBay
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Deal Details
DS18 Car Audio via eBay has Black Diamond DIA-P1000X1D Amplifier + 2x DS18 GEN-X124D 12" Subwoofer Bundle on sale for $347.96 - 20% with coupon code LONGWKND20 at checkout = $278.37. Shipping is free.

Thanks to Deal Hunter tDames for sharing this deal.

Details:
  • Bundle contents: Black Diamond DIA-P1000X1D 1000W RMS Class D monoblock amplifier + DS18 GEN-X124D 12" DVC subwoofer (450W RMS)
  • Power output: 1000W RMS from amp + 450W RMS from sub for deep, punchy, room-shaking bass
  • Amplifier features: 1-ohm stable, compact design fits most vehicles, aluminum body for heat resistance
  • Subwoofer features: Dual 4-ohm voice coils for flexible wiring options; steel basket for durability
  • Performance: Delivers clean, powerful low-end with clarity at high volumes; ideal for upgrading stock systems or building custom setups
  • Setup note: Requires enclosure/box and wiring kit (not included) to complete bass system

Editor's Notes

Written by SaltyOne | Staff
  • At the time of this posting, our research indicates that this is $158.48 lower than the next best comparable online prices starting from $436.85.
  • Offer valid for a limited time only / while supplies last.

Original Post

Written by tDames | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
DS18 Car Audio via eBay has Black Diamond DIA-P1000X1D Amplifier + 2x DS18 GEN-X124D 12" Subwoofer Bundle on sale for $347.96 - 20% with coupon code LONGWKND20 at checkout = $278.37. Shipping is free.

Thanks to Deal Hunter tDames for sharing this deal.

Details:
  • Bundle contents: Black Diamond DIA-P1000X1D 1000W RMS Class D monoblock amplifier + DS18 GEN-X124D 12" DVC subwoofer (450W RMS)
  • Power output: 1000W RMS from amp + 450W RMS from sub for deep, punchy, room-shaking bass
  • Amplifier features: 1-ohm stable, compact design fits most vehicles, aluminum body for heat resistance
  • Subwoofer features: Dual 4-ohm voice coils for flexible wiring options; steel basket for durability
  • Performance: Delivers clean, powerful low-end with clarity at high volumes; ideal for upgrading stock systems or building custom setups
  • Setup note: Requires enclosure/box and wiring kit (not included) to complete bass system

Editor's Notes

Written by SaltyOne | Staff
  • At the time of this posting, our research indicates that this is $158.48 lower than the next best comparable online prices starting from $436.85.
  • Offer valid for a limited time only / while supplies last.

Original Post

Written by tDames | Staff

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Top Comments

Community Reviews

This DS18 Black Diamond kit is a budget car audio bass upgrade that can hit hard when paired correctly. The 1000 watt RMS amp is a good match for the two 4 ohm dual voice coil subs, and wiring everything in parallel can get the amp to its rated 1 ohm mono output. A proper subwoofer box and quality oxygen free copper wiring matter, with ported enclosures favoring boomy bass and sealed boxes giving tighter sound. Factory head units may need a line out converter such as an LC2i because some are detuned and do not send enough bass. It is a solid setup if the install is done right.

  • The setup guidance explains how to choose ported versus sealed enclosures for different bass character.

  • The wiring explanation shows how to configure dual 4-ohm voice coils and both subs in parallel for a 1-ohm mono load.

  • The installation advice recommends 12-gauge oxygen-free copper wiring for the stated RMS and impedance targets.

  • The system-matching note suggests an AudioControl LC2i line-out converter can restore bass when factory sources are detuned.

  • The experience with a detuned stock head unit reports no bass output when using it as the source for aftermarket subs.

  • The enclosure guidance warns against throwing the subs into a trunk without an appropriate subwoofer box and quality wiring.

  • The kit pairing questions indicate buyers may need to add an enclosure choice and a line-out converter beyond what is included.

  • The cable-gauge question suggests installation requirements like wire gauge may not be obvious from the listing alone.

Common Questions (4)

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20 Comments

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Feb 13, 2026 7:14 PM
206 Comments
Joined Dec 2017
Bnutz8Feb 13, 2026 7:14 PM
206 Comments
Thanks OP. Just ordered one for my oldest son's first "system". We are gonna install it together! So exicted!
Pro
Feb 14, 2026 11:16 AM
2.1K Comments
Joined Jul 2019
WoodSlayR
Pro
Feb 14, 2026 11:16 AM
2.1K Comments
Quote from vabruno View quoted comment :
What the heck is black diamond?
Black Diamond is made by DS18
https://ds18.com/collections/black-diamond
Feb 15, 2026 4:47 AM
336 Comments
Joined Nov 2025
ForHassanFeb 15, 2026 4:47 AM
336 Comments
Quote from S_Klass View quoted comment :
It's been years since I dabbled in car audio but 1000W RMS amp will drive (total) 900W RMS subwoofers in parallel (2 ohm). These should be considered a good match. But for god's sake please invest in a subwoofer box and quality wires of appropriate gauge. Don't just throw these into your trunk. Ported box for boomy/thunderous bass or sealed box (non-ported) for tight/melodic bass.
Thanks! Do you know what gauge cables would be good for these? Any amazon recommendation?
Feb 15, 2026 5:33 AM
1.5K Comments
Joined Nov 2010
BigDealYoFeb 15, 2026 5:33 AM
1.5K Comments
Need a bandpass box or enclosure deal to pair up along with best line out converter.
Feb 26, 2026 9:25 PM
1.3K Comments
Joined May 2013
S_KlassFeb 26, 2026 9:25 PM
1.3K Comments
Quote from ForHassan View quoted comment :
Thanks! Do you know what gauge cables would be good for these? Any amazon recommendation?
Sorry for the late reply but 12 gauge is a good match for 500W RMS at 2 ohms. Oxygen-Free Copper cable is preferred over any Aluminum cable. It doesn't have to be fancy.

ASIN B079VJXN1Z is probably decent.

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