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In Phase Car Audio IPA1601 2 Channel 2 Ohm Stable Amplifier with SuIPA1601
£126.41 Save £173.58  was:£299.99
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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 

5 Stars (10)

In Phase Car Audio IPA1601 2 Channel 2 Ohm Stable Amplifier with Subsonic Filter **FREE AMPLIFIER WIRING KIT**

Save: £173.58 (58%)  rrp: £299.99
5 Stars
10 Review(s) / write a review
Quickfind Code - 23406
Quick Summary:

InPhase amplifiers are made to rock your world. With great muscle also comes refinement.

Condition: New

Save: £173.58 (58%)
rrp: £299.99
Only 3 Left!
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  • 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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Key Features

2 Channel 2 Ohm Stable Amplifier with Subsonic Filter **FREE AMPLIFIER WIRING KIT** - In Phase Car Audio IPA1601

InPhase amplifiers are made to rock your world. With great muscle also comes refinement. Advanced features such as bass boost, fully variable zero to 60Hz subsonic filters and crossover networks with different frequency bands for highpass and lowpass, you will always have full control. Connectivity is excellent with high level as well as RCA inputs and a pass through RCA output to feed more amps, without needing multiple runs of RCA cables.

With two ohm stable designs, trimode capability and clever protection circuits, these hand-built powerhouses will take anything you throw at them. Massive heat sinks with a high surface area to volume ratios and cast end caps to hide the wiring connections and keep things controlled – helped by forced air cooling on the real bass monsters. 

All the amps may be bridged for even more power into one channel. Four and two channel designs, all with potent MOSFET power supplies, cover every need from single-amp whole system solutions, all the way to pavement-shaking power mania. There is always a high quality InPhase amplifier (or two) that’s just perfect for your hunger for power.

The New InPhase IPA range of amplifiers from InPhase is possibly one of the best car amplifiers available today. Car amplifiers are the heart of a system and need be of the best quality available for your budget. All Inphase IPA car amplifiers are hand assembled and go through 35 different check points to ensure you get the best possible car amplifier today. 

The IPA range of car amplifiers gives you the true RMS power to power your system. Some of the amazing features of the new Inphase IPA range of amplifiers have a Subsonic filter so you can adjust your amplifier to deliver more power to the desire frequency range, which mean more power to your speaker. Line in and line out so you can run as many InPhase amplifiers as you want one a single RCA cable. Dual layer circuit boards for improved sound quality and low resistance from internal parts give you a smaller and yet more powerful amplifier.

British Design 

All In Phase amps are designed in the UK utilising over 30 years of audio experience to create a sound that is right for you. 

Improved Circuit Design

To prevent circuit shutdown, Juice's new digital amplifier circuit, senses its internal temperature and automatically moderates input level accordingly. Stable, durable circuitry lessens the risk of high input power for the unit to achieve 2 Ω connection. This design enhances the flexibility to connect multiple subwoofers to a system.

Variable Low Pass Filter

For extra flexibility, a variable LPF makes audio frequency more adjustable according to subwoofer characteristics and personal listening preferences. The LPF is adjustable from 30 Hz to 250 Hz.


Download image of In Phase Car Audio IPA1601 Click here for Image of In Phase Car Audio IPA1601
Technical Specification
Key Features:
  • 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
  • 2 ohms Stable
  • Variable Subsonic Filter 20Hz- 50Hz
  • High pass filter frequency 80Hz - 1.2kHz
  • Low pass filter frequency 50Hz - 250Hz
  • RCA output for amplifier linking
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Customer reviews

Great service thanks guys
ANDREW on 12/05/2022 5 star rating

Would definitely recommend these guys I called up and they recommended this amp my system has never sounded as good I am actually glad my old amp died now

damian bulley on 18/02/2022 5 star rating

Hello guys would this amp rum t-rex 10 3000watt I have a small trunk regards still need max power regards

Great advice
Simone on 12/05/2020 5 star rating

I was recommended this amp after I did not like the sound of the Pioneer one I had. My speakers are focal k2 power and one of the guys recommended this one. I was not sure but he said it was really good so I went for it. Fitted it last week. Been using it for a week now and believe me this amp is stunning. The sound quality is so high end. It's like hi-fi quality. So warm and dynamic, yet powerful and responsive. Great control options too, built in crossovers. This amp and also do tri mode!!

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Questions/Answers About This Product
  • Question: 27 September 2020
    Car: Vauxhall Zafira - 2007>

    Hi I've got two alpine type r subs would this amp run both of them with no problems.


    This amp should run R-Type subs. We will need to know which one you have though to make sure. Because of impedance. However if you really want to run them to their full potential go for the IPA2001D

    InPhase IPA2001D 1 Ohm Stable 2000 Watts RMS Monoblock with Subsonic Filter

    Found Useful? Yes 

  • Question: 03 May 2020
    I'm wanting to run 2 12inch subs and they run 400w rms each will this amp be big enough to run them

    The In Phase amp would be great but I would buy the In Phase IPA2001D its got so muhc mor epower for �20.00 extra

    InPhase IPA2001D 2000 Watts RMS Monoblock amplifier

    Found Useful? Yes 

  • Question: 26 April 2020
    Car: VW Transporter - 2005 >

    Hi would this be ok to power two speakers not subs but speakers

    Yes the IPA1601 will power 2 speakers with no issues

    Found Useful? Yes 

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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