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Fit it Yourself?

Everything you need to fit it yourself at home

Only £30.00 

With Steering Wheel Control
Only £50.00 

Alpine Car Audio Bass Package - Alpine Subwoofer with In Phase Amplifier and Ported Bass Box

£389.99 Save £110.00 (22%)  was:£499.99
5 Stars 5
Quickfind Code - 40398
Quick Summary:

The ideal starter package for anyone looking for a simple solution to add bass to there car audio system.

Condition: New

Save £110.00 (22%)
rrp: £499.99
This product has been discontinued

  • Free Car Air Freshener with every order Free Car Air Freshener with every order
  • Easy ReturnsEasy Returns
  • Next Day Delivery available on all orders before 5pm Next Day Delivery available on all orders before 5pm

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Sorry, this product has been discontinued. please call us for alternatives

Key Features

Bass Package Alpine Subwoofer with In Phase Amplifier and Ported Bass Box - Alpine Car Audio R-W12D4 + IPA1601 + BX12SL

Alpine R-W12D4 4Ω Voice Coil Subwoofer
  • Max. Power: 2250w
  • RMS: 750w
  • Mounting Depth: 149mm
  • Mounting Diameter: 230.5mm
  • Impedance: 4 Ohm + 4 Ohm
  • Frequency Response: 24Hz - 200Hz
In Phase IPA1601 2 Channel Amplifier
  • 300w RMS x 2 @ 4ohms
  • 400w RMS x 2 @ 2ohms
  • 1600 watts max music
  • Regulated power supply
  • MOSFET power supply
  • Tri Mode operation
  • Oversize Power Tranformer
  • Bipolar Output devices
  • Variable cross over (high/low pass)
  • Dimensions (L x W x H) 380mm x 250mm x 55.5mm
  • Bass Boost
  • Variable gain adjustment
  • Thermal protection
  • Overload protection
  • 2ohms Stable
  • Variable Subsonic Filter 20Hz- 50Hz
  • High pass filter frequency 80Hz - 1.2kHz
  • Low pass filter frequency 50Hz - 250Hz
  • RCA output for amplifier linking
Sealed Subwoofer enclosure for single 12' Subwoofer
  • Single 12' sealed bass box
  • 15mm MDF construction
  • Black trimmed carpet
  • Internal wiring supplied
  • Gold plated terminals
  • External Dimensions: W43 x H37 x D23top/33bottom (cm) 

Download image of Alpine Car Audio R-W12D4 + IPA1601 + BX12SL Click here for Image of Alpine Car Audio R-W12D4 + IPA1601 + BX12SL
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Questions/Answers About This Product
  • Question: 26 November 2017
    Car: Ford

    Subwoofer: RMS: 750w
    Amplifier: RMS: 300w RMS x 2 @ 4ohms
    Is this not underpowering the sub?

    Why is this sub and amp a good combination?


    yes you are correct this amplifier would under powering something like this alpine subwoofer bases on that the RMS rating of 750W is its minimum input, with all other alpine woofers they state that the subwoofers will run between (PowerRange: 300W - 1000 Watts RMS) this spec was on the older SWR12D4, i have ran the IPA1601 on the Alpine type R range of subwoofers before without an issue, yes they do not reach the max RMS rating of the subwoofer even alpine only recommend a 650W rms at 2 ohms amplifier, which in theory would still be under-powering the woofer. you could go for a higher RMS amplifier if you wish. in a ported efficient enclosure this amplifier would power this subwoofer without an issue

    Found Useful? Yes 

Fitting Services

Need help with Installation?

Here at CarAudioCentre we offer a professional and reputable fitting service in all our stores. For all fitting enquiries and bookings please visit or call one of our nationwide stores. Our fitters can install your new car stereo, DAB radio, audio visual, speakers, subwoofers or amplifier. We can also help to connect your iPod or MP3 player to you existing audio unit and can offer the best advice on the right in-car entertainment for your vehicle, to further this more we also offer a total 100% custom installation service for demo and show vehicles. So if you have an idea come on in and run it past us, the possibilities are endless and we are never too busy for an enthusiastic chat about our favourite subject.

Please note:

"That our two year warranty on products is only applicable to purchases made directly from us and that have been fitted in one of our stores."

Our Stores:

120 - 122 Alfreton Road, Nottingham, Nottinghamshire, NG7 3NR
Tel: 0115 9624 986
743-745 Eastern Ave, Newbury Park, London, IG2 7RT
Tel: 0208 599 2368
835 Garratt Lane, Tooting, London, SW17 0PG
Tel: 0208 971 9181