ROCKFORD FOSGATE PUNCH PM100X1K Marine 100 Watt Full-Range Mono Amplifier (pair)
The PM100X1 is a 100 Watt dynamic power mono amp using DC and AC voltages present on existing radio speaker outputs. This design allows connection to a speaker wire without running a B+ cable. It also presents a safe load to the radio amp circuit to eliminate excessive wear and tear on the radio, making it ideal for OEM and aftermarket radio integration. The conformal coated PCB allows for mobile, motorsport and marine applications. PM100X1K "KIT" ships with 2 pcs.
DESCRIPTION:
The PM100X1 amplifier uses our patent pending BTL technology to provide you a very unique amplifier solution. This single channel amplifier utilizes the speaker output of the radio to not only provide the audio signal it needs, but also the power that runs the unit. This is done through a combination of the DC offset voltage commonly present and the audio AC signal itself.
Initially, it uses the DC offset voltage for its turn on power as well as primary amplification power. As volume is increased and the output power demand rises, the amplifier begins sharing the power load between the DC and AC signals. Once high volume is reached, the majority of the amplifier's power is provided from the AC signal only and is supplemented by its intenal storage bank.
This design allows it to actually charge its capacitive bank on the downside of the AC signal wave which is essentially unused power anyway. It also presents no more load to the radio than a standard 2 or 4 ohm speaker would thus keeping the radio amplifier circuit safe from low impedance conditions. This design allows the amplifier to be connected to a radio with a rated 20 watt output and produce up to 100 watts dynamically. The unit also features a 2/ 4 ohm input switch to match the amplifier to the output impedance rating of the radio circuit. For speaker protection, we incorporate and selectable high pass crossover with setting at 60, 80 and 100Hz.
In rare cases there is not enough DC voltage present to power the amp at turn on so an add on B+ wire is included and can be tied to other lower current circuits in its proximity. This design makes the amplifier ideal for OEM or aftermarket upgrades without having to use physically larger amplifiers as they can be hidden in the dash or doors of the vehicle. It is also IPX6 rated for those installs where moisture may be present.
- Patented BTL Powered "FreeLoad" Technology (US 9,438,181 B1)
- Harvests both B+ and Audio Signal From Standard Head Unit Speaker Outputs
- Uses Stored Energy from BTL Amplifier to Produce Dynamic Power of Over 100W
- Current Limited to Protect Head Unit for Both 4 Ohm and 2 Ohm Configurations
- High Level Turn On
- Optional B+ Connection for Non-Standard Speaker Outputs
- Selectable 4 and 2 Ohm Play
- 60, 80, and 100 Hz Selectable 12dB/Oct HP Butterworth Crossover
- Small Stealth Package that Allows for Anywhere Installation
- Pig Tail Connectivity for Easy Installation
- Extruded Aluminum Heat Sink
- Muted turn on
- Thermal Protection
- Short Circuit & Over Voltage Protection
- Discrete surface mount technology
- CEA-2006 Compliant & CE Compliant
- Sold in pairs (left/right)
- 2-Year Warranty
SPECIFICATION:
- 60W x 1 @ 4Ω
- ≤1.0% THD+N
- Number of Channels: 1
- Total Power
- (Sum of Rated Power): 100 Watts
- Dynamic Power
- (PVC/PowerCube®): 61 Watts x 1 @ 4-Ohm
- 109 Watts x 1 @ 2-Ohm
- Bridgeable: No
- Frequency Response: 60Hz to 20kHz +/- 1.0dB
- Total Harmonic Distortion (THD+Noise): 4-Ohm: <1.0%
- 2-Ohm: <1.0%
- Crossover Controls: High-Pass:
- Selectable 60Hz, 80Hz, 100Hz @ 12dB/octave Butterworth
- Heat Sink Type: Extruded aluminum
- Cooling: Convection
- Visual Indicators: Power/Protect LED
- Operating Voltage: 9 - 16 VDC
- Shipping Weight:
- Dimensions (H x W x D): 1.3 x 3 x 3.9 (in)
- 3.3 x 7.62 x 9.91 (cm)
| SKU | PM100X1K |
|---|
HOW WILL YOU SEND MY ITEM?
We ship most orders within the UK using Royal Mail and DPD couriers. Due to the nature of some items we may ship your order direct from our supplier or use a different delivery partner to ensure your items get to you in the quickest and safest way.
HOW MUCH DOES DELIVERY COST?
To see how much delivery costs for your order, simply add your items to the cart and go through the first step in the checkout where you will see a delivery estimate. If you think you are not being charged the right amout please contact us for the most accurate quote.
HOW LONG DOES DELIVERY TAKE?
Depending on the delivery service you choose, delivery usually takes between 1-5 working days to mainland UK from the moment we despatch your order. Orders to UK Non-mainland and international destinations can take longer.
WHEN WILL YOU DESPATCH MY ORDER?
Orders placed before 2pm are processed and despatched the same day (excluding public holidays and weekends). Orders placed after 2pm and on weekends will be processed and despatched the following working day.
*Please note that some orders may require extra checks before we are able to despatch your order so timescales may vary.
CAN I TRACK MY ORDER?
Yes - Order tracking is offered as standard on all orders, whether they are shipped via DPD or Royal Mail. You will receive your tracking information via email once we have despatched your order.
UK NON-MAINLAND AND INTERNATIONAL DESTINATIONS.
Shipping for all items to UK Non-Mainland and International destinations will incur a charge at checkout. If the appropriate delivery charge is not applied automatically at checkout, we will contact you to arrange payment and reserve the right to cancel your order if you refuse to pay for appropriate delivery. Please feel free to contact us if you would like to query the prices to your destination.
Shipping to international destinations may require further security checks and I.D. may need to be provided by the cardholder.
Please note that we are unable to ship some items outside the UK. To avoid any disapointment please contact us before making you order.
WHAT DO YOU CLASS AS UK NON-MAINLAND?
Rep. Ireland, N. Ireland, Channel Islands, Jersey, Guernsey, Isle of Wight, Isle of Man and Scottish Highlands. If you are unsure whether your address is classed as UK Non-mainland please feel free to contact us and an advisor will be happy to help.
For any further enquiries with regards to your delivery please contact us on 020 8561 9485 and one of our adviser's will be happy to help.
Test
If you're not happy with your item or you've changed your mind.
Even though we're sure you'll be happy with your purchase, it's important that you are aware of how we deal with returns in the event that you need to send something back.
We understand how inconvenient it can be when you buy a product and aren't 100% satisfied with it. For this reason we have designed our returns policy to prevent any further inconvenience to you in these instances.

Christmas Returns Policy
- Any product purchased between 24/11/23 and 24/12/23 will qualify for our extended returns policy.
- If your purchase is made within this time you have until 01/01/2024 to inform us of your intention to return your items.
- All orders placed within this time which are outside of the standard 14 day policy can only be returned for a credit. All credits need to be used within 90 days of issue.
- Please ensure you inform our Customer Service team in writing or via email (sales@thetuningstore.co.uk).
- Any items being returned need be in brand new, unopened and unused condition.
- All products must be returned to us within 14 calendar days after our Customer Service team have authorised a return.
- Any promotional items received FREE at the time of purchase must also be returned, unused and unopened, otherwise the value of the promotional item will be deducted from the credit.

Under 14 days
- You can return your goods for a full refund or exchange as long as you inform us of your intention to return the goods within 14 days of receipt, starting from the day after you receive your goods (Exclusions apply, see below.)
- All return costs are down to the buyer and it is recommended that you return your items using a trackable method with appropriate insurance (if required).
- Once we have approved your return, please ensure that you return the item within 14 days.
- If a returns number is provided then please ensure that the parcel has this clearly marked.
- Items need to be returned in "as new" condition in their original packaging. We don't mind if you open the product to check it, however any used or damaged products will be subject to a 25% handling fee so please take care when opening your items
After 14 days
- We will not offer a refund after 14 days of you receiving your delivery unless your product is faulty.
Exclusions from our returns policy
As we're sure you'll understand, there are some products that we can't offer returns on due to their nature. These include:
- Special order items (these items will be clearly identifiable).
- Custom cut items.
- Clothing due to health and hygiene reasons.
- Products that include software which require activation.
Please note that these exclusions do not apply to items that become faulty.
If your product becomes faulty
We endeavour to get your items to you in fully working order, however in the event that your items do become faulty, please read below on what you should do next.
In a lot of cases with some products, faults can be fixed by performing some basic troubleshooting, so to prevent any further inconvenience to you we advise that you contact our Customer Service team who can guide you through some basic troubleshooting before sending items back.
Under 30 days
- If your items become faulty within 30 days of delivery you are entitled to a full refund or exchange. Please contact our customer service centre who will provide necessary returns details.
- Please send the items back with a cover note including a description of the fault and your original order number.
- Once we have fully tested the item and confirmed the fault, we will process the refund or exchange including cost of carriage back to us (within reason).
- If during our testing we cannot find a fault, no refund will be given and you will be charged for delivery of the item back to you.
After 30 days
- After 30 days you will still be able to get your faulty items repaired or replaced within the manufacturers warranty and we will be happy to assist you with this. Please contact our customer service team to find out the best way to get your items repaired or replaced. Please be aware that after 30 days we will not cover you for any carriage costs.
Air Lift Warranty information
Click here for Air Lift warranty information.
PLEASE NOTE: ALL RETURNS NEED TO BE ACCOMPANIED BY A COMPLETED RETURNS FORM: DOWNLOAD.
DONT HAVE A PRINTER? Just ensure you include the relevant information required on a note inside the return so that we can process your request.