The Zen F25 Network Preamp is compatible with several 2025+ Ford and Lincoln vehicles. (See “Coverage” below for more on covered vehicles.) 

The F25 delivers 6 channels of audiophile-quality analog RCA signal, and a stereo SPDIF signal over its optical Toslink output. Non-entertainment sounds, like handsfree calls, navigation prompts, and audible alerts, are retained. Sounds which interfere with audio system performance - noise-cancelling feedback and “fake exhaust” note - are eliminated. 

The Zen F25  Preamp Amplifier’s USB port allows for adjustment of the DSP settings via a PC, and also for firmware updates if needed.
The Zen F25  Preamp amplifier does not need a “remote turn-on” input - it turns on via the network connection to the vehicle. The F25 does have a remote turn-on output for external amplifiers and/or digital signal processors. 

The Zen F25  Preamp receives pure stereo sound from the OEM source unit, without any OEM processing. The preamp also executes volume, front/rear fade, and tone control commands, as well as integrating audio streams from various non-entertainment sources (such as handsfree calls). For more on network preamps, see documents available at zenaudio.com

The level of the F25 Subwoofer RCA output is controllable on the OEM infotainment screen using the Bass tone control setting (not available over digital Toslink). 

The Zen DSP section of the Zen F25 Preamp allows for the user to calibrate the four ACM channels in many Ford vehicles, ensuring that all speakers work together for the highest-fidelity sound. Using the free software application, the user can adjust delay, level, crossover filtering, equalization, polarity, and phase for these four channels. This allows a user to use a DSP processor on the non-ACM channels, and the Zen DSP on the ACM channels, for complete sound tuning. Acoustic measurement tools are essential for best results. 
A separate document available at zenaudio.com describes a tuning process for the DSP. 

NOTE: Nav-TV recommends professional installation. 
 

ACM Channels in Fords

In Ford vehicles, some speakers are powered by the Audio Control Module (ACM). This module is usually located behind the SYNC display. Here is a 2025 F-150 as an example:
 

You way wish to run new speaker wires to these speakers, so you can power them with your new amplifier(s) instead of the ACM.

If you wish to power these speakers from the 25-watt ACM channels, the F25 includes the ability to apply crossover filters, equalization, delay, polarity inversion, and phase - using the F25's internal DSP. In testing, these channels often have appropriate power for A-pillar tweeters and overhead height speakers. You may wish to power rear door or center-channel speakers with your new amplifier(s). 

Ford ACM-Powered Speakers by Vehicle Model:

• F-150/250 8-Speaker B&O (all years) – Front A-pillar tweeters
• F-250/350/450 B&O Unleashed – Front A-pillar tweeters, headliners and headrest speakers
• F-150 B&O Unleashed (2021 – 2023) - Front A-pillar tweeters, rear door speakers
• F-150 B&O Unleashed (2024+) – Front A-pillar tweeters, headliner height speakers
• Bronco w/B&O 2022 – 2024 – Center channel, rear overhead pod speakers
• Explorer w/B&O (all years) – Front tweeters, D-pillar surround speakers
• Expedition w/B&O (all years) – Front tweeters, D-pillar surround speakers

INPUT
Digital Input from the vehicle infotainment A2B+ network (also monitors vehicle CAN network)

OUTPUT
Six analog RCA channels (5V RMS)
Frequency Response 18 Hz - 24 kHz
Front Left/Right
Rear Left/Right
Mono Subwoofer
S/N Ratio (analog): 114dB
S/N Ratio (SPDIF): 113dB
THD+N @ -1dBFS <0.01%

POWER SUPPLY
Current Consumption:
Standby: <1 mA
Operational: 350 mA maximum
Operational Voltage: 7V – 20V DC
Remote Turn On Capacity: 500mA

OTHER
Dimensions (module): 4”x5”x1 3/8”
Weight (module)    10 oz
Country of Origin Thailand

Notes 
1. The vehicle model year is not always the same as the year of the vehicle's date of manufacture. If you are unclear on the official model year, use the official NHTSA VIN lookup tool here.

2. Some Ford vehicles offer two levels of B&O sound package (one example is the F-150, with standard "8-speaker" B&O and the upper-end B&O Unleashed option with more speakers). The F25 is compatible with both levels of B&O system. 

3.The Zen POWER9's network input is compatible with vehicles in all markets. In some cases, aspects of the audio system may vary and some physical differences may be found. For example, the amplifier location and mounting for AUS-market Ford Rangers is different from North American-market Rangers. However, the Zen POWER9 is compatible with the network and can be used after installation variations are addressed.

4. Starting in the 2025 model year, some Ford and Lincoln vehicles without a networked premium amplified system can be “recoded” to premium-sound mode - thus enabling the installation of Zen Audio network preamps or amplifiers! Additional cables are required.

 

• Zen F25 module
• RCA output cable
• USB cable
• Ford plug-and-play interface harnesses

NOTE: The XXXX and XXXX needed for non-B&O conversion in 2025+ Fords are not included. Click here for the XXX and here for the XXXX. 

Product Manual

Download the Product Manual here. 

Use Cases

Ford, Analog RCA out

Ford, Toslink SPDIF out

How many channels does the Zen F25 have? 

This network preamp has six analog RCA outputs, and one stereo TOSLINK SPDIF outout. It also allows control of the four 25-watt channels in the Ford ACM.

What's an ACM?

The ACM is the Ford acronym for the Audio Control Module - what you might call the "head unit". For more information, see this tech article.

What makes this preamp sound so good?

Some of that is the Zen Audio network preamp technology (more on that here), and some of it is the audiophile-grade D/A converters and op-amps used in the signal path. 

Does it work in all Fords? 

It works in 2025+ Fords with B&O sound, using V1.1 of the A2B infotainment networking protocol.  For pre-2025 Fords using V1.0 of the A2B protocol, use the Zen A2B+ preamp.  Please see the Vehicle Compatibility tab for specific coverage.

See the installation manual for more information. 

You may cancel your order without penalty prior to the product shipping.

Products cancelled or refused after the product has shipped will incur shipping and handling charges as well as a 20% restocking fee.

We will accept returns of eligible items within 30 days of your receipt. Exchanges are also accepted during the 30-day window, and may occur at Nav-TV’s discretion during the warranty period. Products returned within the first 30 days after purchase ,and are subject to a 20% restocking fee. Products must be new, unused and in their original packaging to qualify for a refund.

 Please visit the Nav-TV or Zen audio website to start a return or exchange. The order number provided in your confirmation email is required in order to process the return.  

 If you believe you have received a defective product, please contact Technical Support to initiate an exchange. Technical Support will work with you to determine next steps. Upon our receipt of the product and confirmation of defect as determined by our inspection, we will provide an exchange unit. Please see our Warranty policy here.

 Returned product must be in new and unused condition. The order number provided in your confirmation email is required in order to process the return. Any shipping and handling fees will not be refunded.  You will be responsible for return shipping costs. Upon our receipt of the product in unused/resalable condition as determined by our inspection, we will issue a refund to the credit method used to make the purchase.

Privacy Policy

This privacy policy has been compiled to better serve those who are concerned with how their 'Personally identifiable information' (PII) is being used online. PII, as used in US privacy law and information security, is information that can be used on its own or with other information to identify, contact, or locate a single person, or to identify an individual in context. Please read our privacy policy carefully to get a clear understanding of how we collect, use, protect or otherwise handle your Personally Identifiable Information in accordance with our website.
 
What personal information do we collect from the people that visit our blog, website or app?
 
When ordering or registering on our site, as appropriate, you may be asked to enter your name, email address, mailing address, phone number, credit card information or other details to help you with your experience.
 
When do we collect information?
 
We collect information from you when you register on our site, place an order, subscribe to a newsletter, respond to a survey or enter information on our site.
 
How do we use your information?
 
We may use the information we collect from you when you register, make a purchase, sign up for our newsletter, respond to a survey or marketing communication, surf the website, or use certain other site features in the following ways:
     • To personalize user's experience and to allow us to deliver the type of content and product offerings in which you are most interested.
     • To improve our website in order to better serve you.
     • To allow us to better service you in responding to your customer service requests.
     • To administer a contest, promotion, survey or other site feature.
     • To quickly process your transactions.
     • To send periodic emails regarding your order or other products and services.
 
How do we protect visitor information?
 
Our website is scanned on a regular basis for security holes and known vulnerabilities in order to make your visit to our site as safe as possible.

We use regular Malware Scanning.

Your personal information is contained behind secured networks and is only accessible by a limited number of persons who have special access rights to such systems, and are required to keep the information confidential. In addition, all sensitive/credit information you supply is encrypted via Secure Socket Layer (SSL) technology.
 
We implement a variety of security measures when a user places an order enters, submits, or accesses their information to maintain the safety of your personal information.
 
All transactions are processed through a gateway provider and are not stored or processed on our servers.
 
Do we use 'cookies'?
 
Yes. Cookies are small files that a site or its service provider transfers to your computer's hard drive through your Web browser (if you allow) that enables the site's or service provider's systems to recognize your browser and capture and remember certain information. For instance, we use cookies to help us remember and process the items in your shopping cart. They are also used to help us understand your preferences based on previous or current site activity, which enables us to provide you with improved services. We also use cookies to help us compile aggregate data about site traffic and site interaction so that we can offer better site experiences and tools in the future.
We use cookies to:
     • Help remember and process the items in the shopping cart.
     • Understand and save user's preferences for future visits.
     • Compile aggregate data about site traffic and site interactions in order to offer better site experiences and tools in the future. We may also use trusted third party services that track this information on our behalf.
You can choose to have your computer warn you each time a cookie is being sent, or you can choose to turn off all cookies. You do this through your browser (like Internet Explorer) settings. Each browser is a little different, so look at your browser's Help menu to learn the correct way to modify your cookies.
 
If you disable cookies off, some features will be disabled and may affect the users experience that make your site experience more efficient and some of our services will not function properly.
 
However, you can still place orders .
 
Third Party Disclosure
 
We do not sell, trade, or otherwise transfer to outside parties your personally identifiable information.
 
Third party links
 
We do not include or offer third party products or services on our website.
 
Google
 
Google's advertising requirements can be summed up by Google's Advertising Principles. They are put in place to provide a positive experience for users. https://support.google.com/adwordspolicy/answer/1316548?hl=en
We have not enabled Google AdSense on our site but we may do so in the future.
 
California Online Privacy Protection Act
 
CalOPPA is the first state law in the nation to require commercial websites and online services to post a privacy policy. The law's reach stretches well beyond California to require a person or company in the United States (and conceivably the world) that operates websites collecting personally identifiable information from California consumers to post a conspicuous privacy policy on its website stating exactly the information being collected and those individuals with whom it is being shared, and to comply with this policy. - See more at: http://consumercal.org/california-online-privacy-protection-act-caloppa/#sthash.0FdRbT51.dpuf
According to CalOPPA we agree to the following:
Users can visit our site anonymously
Once this privacy policy is created, we will add a link to it on our home page, or as a minimum on the first significant page after entering our website.

Our Privacy Policy link includes the word 'Privacy', and can be easily be found on the page specified above.
Users will be notified of any privacy policy changes:
     • On our Privacy Policy Page

Users are able to change their personal information:
     • By emailing us

How does our site handle do not track signals?
We honor do not track signals and do not track, plant cookies, or use advertising when a Do Not Track (DNT) browser mechanism is in place.
Does our site allow third party behavioral tracking?
It's also important to note that we do not allow third party behavioral tracking
 
COPPA (Children Online Privacy Protection Act)
 
When it comes to the collection of personal information from children under 13, the Children's Online Privacy Protection Act (COPPA) puts parents in control. The Federal Trade Commission, the nation's consumer protection agency, enforces the COPPA Rule, which spells out what operators of websites and online services must do to protect children's privacy and safety online.
We do not specifically market to children under 13.
 
Fair Information Practices
 
The Fair Information Practices Principles form the backbone of privacy law in the United States and the concepts they include have played a significant role in the development of data protection laws around the globe. Understanding the Fair Information Practice Principles and how they should be implemented is critical to comply with the various privacy laws that protect personal information.
In order to be in line with Fair Information Practices we will take the following responsive action, should a data breach occur:
We will notify the users via email
     • Within 7 business days
We will notify the users via in site notification
     • Within 1 business day
We also agree to the individual redress principle, which requires that individuals have a right to pursue legally enforceable rights against data collectors and processors who fail to adhere to the law. This principle requires not only that individuals have enforceable rights against data users, but also that individuals have recourse to courts or a government agency to investigate and/or prosecute non-compliance by data processors.
 
CAN SPAM Act
 
The CAN-SPAM Act is a law that sets the rules for commercial email, establishes requirements for commercial messages, gives recipients the right to have emails stopped from being sent to them, and spells out tough penalties for violations.
We collect your email address in order to:
     • Send information, respond to inquiries, and/or other requests or questions.
     • Process orders and to send information and updates pertaining to orders
     • Market to our mailing list or continue to send emails to our clients after the original transaction has occurred
To be in accordance with CANSPAM we agree to the following:
     • NOT use false, or misleading subjects or email addresses
     • Identify the message as an advertisement in some reasonable way
     • Include the physical address of our business or site headquarters
     • Monitor third party email marketing services for compliance, if one is used.
     • Honor opt-out/unsubscribe requests quickly
     • Allow users to unsubscribe by using the link at the bottom of each email
If at any time you would like to unsubscribe from receiving future emails, you can email us at
     • Follow the instructions at the bottom of each email.
and we will promptly remove you from ALL correspondence.
 
Contacting Us
 
If there are any questions regarding this privacy policy you may contact us using the information below.