StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › PowerBass › Boat & Car Amplifiers
PowerBass
PowerBass XL-400.1D Monoblock Amplifier

PowerBass XL-400.1D Monoblock Amplifier

Best price now

$235.99at Best BuyChecked Nov 9

Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

Visit Best Buy

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $235.99 at Best Buy on Nov 9.

Our take on the PowerBass XL-400.1D Monoblock Amplifier

The PowerBass XL-400.1D is a single-channel Class D amplifier built to drive a subwoofer in a car audio system. Class D operation keeps it small and efficient, and the mono design means it is meant for bass, not full-range speakers. It is a modest-power amp, so it suits a single sub or a lightly powered setup rather than a heavy competition build. Shoppers comparing it with larger monoblocks trade output headroom for a compact, simple install.

Best forPowering one subwoofer in a daily-driver systemSmall installs where space is tightFirst-time amp buyers on a simple bass setupBudget-minded bass upgrades
Pros
  • Class D design runs cool and draws less current
  • Compact chassis fits tight mounting spots
  • Single-channel layout keeps wiring simple
  • Straightforward controls for gain and crossover
Cons
  • Modest RMS output limits subwoofer choices
  • Not bridgeable, so no flexible multi-amp setups
  • Mono only, so it cannot run door speakers
  • Not rated for marine or boat use

PowerBass XL-400.1D Monoblock Amplifier prices at every store

  • Best BuyNew

    In stock

    $235.99Free shippingChecked Nov 9
    Visit Best Buy

Store links may earn us a commission. Price via Klarna.

PowerBass XL-400.1D Monoblock Amplifier price history

Lowest price we've seen: $235.99 on Nov 9 at Best Buy. Tracked across 1 store since Nov 9.

Specifications

Bridgeable
NoSource
Type
MonoSource
Color
BlackSource
Suitable for Boats
NoSource
No. of Channels
1Source
Power Output
RMSSource
Amplifier Class
DSource

Questions and answers

What subwoofer works with the XL-400.1D?
Match it to a single sub whose RMS rating is at or below the amp's rated RMS output at the impedance you plan to wire. A 4-ohm or 2-ohm single voice coil sub is the simplest fit. Check the amp's published power at each impedance before buying.
Can I run two subwoofers on it?
Yes, if you wire them together to a total impedance the amp supports. It is a single-channel amp, so both subs share the same signal and power. Keep the combined load within the amp's rated range.
Is this amp bridgeable?
No. It is a mono amp with one channel, so there is nothing to bridge. If you need to bridge channels, look at a two-channel or multi-channel model.
Can I use it in a boat?
PowerBass does not rate this model for marine use. For a boat, choose an amp explicitly rated for marine duty with corrosion protection.
Does it include a remote bass knob?
Check the box contents for the specific unit. Many monoblocks in this class ship with a bass remote, but PowerBass varies accessories by model, so confirm before you buy.
What power wire gauge does it need?
Follow PowerBass's manual for fuse rating and wire gauge. A modest Class D mono like this typically runs on 8-gauge or 4-gauge power wire depending on run length. Use the fuse rating printed on the amp.
Where is the PowerBass XL-400.1D Monoblock Amplifier cheapest?
At Best Buy, for $235.99, as of our latest check.

Stores we've priced the PowerBass XL-400.1D Monoblock Amplifier at

  • Best Buy deals and prices

More from PowerBass

  • P
    Powerbass XMA-800D 800W 1-Ohm Class D Amplifier
    Powerbass XMA-800D 800W 1-Ohm Class D Amplifier
  • P
    PowerBass Dual 10" 1000W Loaded Subwoofer Enclosure
    PowerBass Dual 10" 1000W Loaded Subwoofer Enclosure
  • P
    PowerBass Xtreme 12" Single 4-Ohm Subwoofer
    PowerBass Xtreme 12" Single 4-Ohm Subwoofer
  • P
    PowerBass PS-WB101 10 Single Loaded Ported Enclosure
    PowerBass PS-WB101 10 Single Loaded Ported Enclosure
  • P
    PowerBass ACS-1000D 1000 Watt 1-Ohm Mono Class-D Amplifier
    PowerBass ACS-1000D 1000 Watt 1-Ohm Mono Class-D Amplifier
  • P
    PowerBass ASA3-600.1D Amplifier Class D Mono
    PowerBass ASA3-600.1D Amplifier Class D Mono
All PowerBass deals and products →