Package Includes

• Phoenix Gold ZDAP-QL1 DSP Power-Up Kit 
• Phoenix Gold ZDBMW4CX 4” (100mm) 2-Way Coaxial Speaker Kit
• Phoenix Gold ZDBMW4CS 4” (100mm) 2-Way Component Speaker Kit
• Phoenix Gold ZDSB200S 8" 150W Subwoofer Kit

THIS KIT IS ONLY SUITED TO BMW WITH BASIC SOUND SYSTEM ONLY

The ZDAP-QL1 DSP Power Up Kit combines superior technology with user-friendly features, delivering an unparalleled audio upgrade. Whether you’re a casual listener or an audiophile, this kit provides the tools to achieve the perfect sound. Experience your music like never before—warmer, richer, and more dynamic.

Transform your vehicle’s audio experience with the ZDAP-QL1 DSP Power Up Kit, engineered to deliver exceptional sound quality. This kit includes a powerful 4x70W RMS Class A/B DSP Amplifier and all the necessary premium-quality harnesses for seamless installation and maximum performance. No vehicle modifications are required, plug it in and enjoy an elevated listening experience.

The ZDA4.8 DSP Amplifier redefines in-car sound quality at this price point, outshining the standard factory-installed amplifiers. Unlike the typical Class D technology found in similar products, the ZDA4.8 employs Class A/B technology, delivering a warmer, more natural sound that brings your music to life. Even without DSP adjustments, the sound quality is significantly enhanced. However, the built-in DSP takes it further, allowing you to fine-tune your vehicle’s audio system to suit your preferences, no matter your music taste.

ZDC- and ZDT- Harness Benefits

The ZDT- harness connects seamlessly behind the OEM head unit without cutting any wires, providing reliable power, clear signal transfer, and reduced noise thanks to its twisted cables and oversized power and ground wires.

The ZDC- harness extends this connection to the ZDA4.8 DSP Amplifier under the front seat, ensuring a clean installation and enhanced audio performance. Together, they deliver efficient integration and exceptional sound quality.

OIS – OEM Impedance Simulation

The ZDA4.8 is equipped with OEM Impedance Simulation (OIS), ensuring compatibility with modern head units and amplifiers. By simulating speaker impedance, it maintains the functionality of your vehicle’s OEM head unit, preventing potential issues.

Input Priority

The Input Priority feature ensures effortless integration with your vehicle’s OEM head unit. You can use low-level inputs or digital sources such as Bluetooth, Optical, or Coaxial, without losing vital system sounds like parking sensors, alerts, and radio signals. For instance, if your vehicle has a high-pass filter that limits bass output, you can bypass this limitation by streaming audio directly to the DSP via Bluetooth while maintaining full OEM functionality.

DSP Outputs

The ZDA4.8 doesn’t stop at upgrading your system—it also enables expansion. With four free DSP-configurable RCA outputs (Channels 5-8), you can connect additional amplifiers, such as a subwoofer amp, and fully optimize them using the DSP software. Delay settings, filters, and equalization options ensure top-tier performance for your additional components.

Software

Take control of your sound system with the free, user-friendly PC software (compatible with Windows 10 and 11). Connect via the included USB-B cable and unlock a suite of powerful tuning tools:

• 31-Band Parametric EQ (PEQ) for precise frequency adjustments
• Choose filter types (Bessel, Butterworth, Linkwitz-Riley) with adjustable slopes from -6dB to -48dB.
• Time alignment with a built-in delay calculator
• Fully custom channel routing
• Custom link options (Copy or Relate)With these advanced features, you can tune your sound system to your preferences.

What's In The Kit

• ZDA4.8 DSP Amplifier
• ZDT-QL1T-Harness    
• ZDC-ISO2 ISO Extension Harness

Phoenix Gold ZDBMW4CX 4” (100mm) 2-Way Coaxial Speaker Kit

ZDBMW4CX

The Phoenix Gold ZDBMW4CX is a 4-inch 2-way coaxial speaker system designed specifically for BMW vehicles, featuring an aluminum cone for clear midbass and midrange, a silk dome tweeter for smooth high frequencies, and a dual aluminum mounting bracket for a secure fit across multiple BMW configurations. The speakers have a frequency response of 120Hz to 20kHz, power handling of 60W RMS (120W max), 4Ω impedance, and come with mounting brackets, speaker foam, screws.

The ZDBMW4CX is a Speaker System Engineered Specifically For BMW Vehicles.

Experience premium sound quality and seamless installation with the Phoenix Gold ZDBMW4CX, speaker system engineered specifically for BMW vehicles. Designed with sound performance and installation versatility in mind, this kit redefines what a simple upgrade can do.

Engineered for Clarity and Control

The 4” coaxial speaker features an aluminium cone for tight, punchy midbass and clear midrange tone reproduction – perfectly suited to bring vocals and instruments to life with accuracy and fun energy.

Mounted at the centre, the sild dome tweeter delivers soft, smooth high frequencies, adding refined detail and a natural top end without harshness.

Precision Engineering Meets Simplicity

The ZDBMW4CX features a dual aluminium mounting bracket system, built for maximum rigidity and zero unwanted vibrations. Its innovative design ensures a perfect fit across multiple BMW configurations, regardless of which of the two OEM brackets your vehicle uses.

Specifications

• Speaker Type: 2-Way Coaxial
• Speaker Size: 4” (100mm)
• Frequency Response: 120Hz – 20kHz
• Power Handling (RMS): 60W
• Power Handling (MAX): 120W
• Impedance: 4Ω
• Sensitivity: 86.0dB (1W/1m)
• Voice Coil: 1” (25.5mm)
• Unit: Sold as pairs

T/S Parameters

• Re: 3.2 Ohm
• Fs: 117 Hz
• Qms: 3.768
• Qes: 1.172
• Qts: 0.894
• Cms: 424.096 μM/N
• Vas: 1.68 L
• BL: 2.86 N/A
• Sd: 52.8 cm²
• Mms: 4.332 g
• No: 0.22 %

Included in the Box

• 2x 4” Speakers
• 4x BMW Mounting Brackets (2 of each)
• 6x Speaker Foam
• 8x Screws
• 1x Manual

Phoenix Gold ZDBMW4CS 4” (100mm) 2-Way Component Speaker Kit

ZDBMW4CS

The Phoenix Gold ZDBMW4CS is a 2-way component speaker set designed specifically for BMW vehicles, offering a premium sound upgrade. It aims to improve clarity, control, and sound balance by addressing factory system limitations.

The ZDBMW4CS Speaker System Engineered Specifically For BMW Vehicles.

Experience premium sound quality and seamless installation with the Phoenix Gold ZDBMW4CS, speaker system engineered specifically for BMW vehicles. Designed with sound performance and installation versatility in mind, this kit redefines what a simple upgrade can do.

Engineered for Clarity and Control

The 4” midrange driver features an aluminium cone, chosen for its ability to deliver tight, punchy midbass and clear midrange tone reproduction – perfectly suited to bring vocals and instruments to life with accuracy and fun energy.

The 1” tweeter uses a silk dome to produce soft, smooth high frequencies, offering a refined, natural top end that enhances detail without harshness.

A dedicated 2-way crossover ensures each driver performs at its best, maintaining tonal balance and seamless integration between the midrange, tweeter and vehicle.

Smart Bass Blocker Function

In BMWs with the factory Basic Sound System, the underseat woofers and door speakers share the same signal. This means the small 4″ door speakers are forced to play deep bass tones they weren’t made for — often causing distortion and muddy sound.

The ZDBMW4CS includes an integrated Bass Blocker loop that filters out those low frequencies below 120Hz (-12dB/Oct). By doing this, it stops unwanted bass from reaching the midrange speakers, allowing them to play louder, clearer, and more accurately. The bass is then handled properly by the underseat woofers, giving you a balanced, distortion-free sound.

Precision Engineering Meets Simplicity

The ZDBMW4CS features a dual aluminium mounting bracket system, built for maximum rigidity and zero unwanted vibrations. Its innovative design ensures a perfect fit across multiple BMW configurations, regardless of which of the two OEM brackets your vehicle uses.

Specifications

• Speaker Type: 2-Way Component Set
• Speaker Size: 4” (100mm)
• Frequency Response: 120Hz – 20kHz
• Power Handling (RMS): 60W
• Power Handling (MAX): 120W
• Impedance: 4Ω
• Sensitivity: 86.0dB (1W/1m)
• Voice Coil: 1” (25.5mm)
• Crossover Frequency: 3300Hz (12dB/Oct)
• Unit: Sold as pairs

T/S Parameters

• 3.2 Ohm
• 112 Hz
• 3.634
• 0.793
• 0.653
• 393.054 μM/N
• 1.41 L
• 3.77 N/A
• 52.8 cm²
• 5.07 g

Included in the Box

• 2x 4” Speakers
• 2x 1” Tweeters
• 2x Crossovers
• 4x BMW Mounting Brackets (2 of each)
• 6x Speaker Foam
• 8x Screws
• 1x Manual

Phoenix Gold ZDSB200S 8" 150W Subwoofer Kit

Basic, HiFi and Harman Kardon Sound System

Phoenix Gold ZDSB200S 8 Inch 150W Subwoofer Kit For BMW

Experience an Unmatched Audio Upgrade with the ZDSB200S 8 Inch 150W BMW Subwoofer Kit

Upgrade your BMW’s audio system to extraordinary levels with the ZDSB200S 8 Inch 150W BMW Subwoofer Kit. Designed to fit a variety of BMW models, this high-quality subwoofer kit combines precision engineering with cutting-edge technology to deliver a sound experience like no other.

At the heart of the ZDSB200S Subwoofer Kit is its 8-inch (200mm) subwoofer, designed to produce powerful and impactful bass that will breathe new life into your favorite music. With a power handling of 75W RMS (Root Mean Square) and a maximum power handling of 150W, this subwoofer ensures a dynamic range that is sure to impress.

The frequency response of the ZDSB200S ranges from 37Hz to 3000Hz, covering a wide range of low and mid-range frequencies with accuracy and clarity. No matter what you’re listening to, every note will be heard.

Equipped with a 2-inch (50mm) voice coil, the ZDSB200S Subwoofer Kit delivers precise and accurate sound production. The voice coil’s design allows for efficient heat dissipation, ensuring optimal performance even during prolonged listening sessions.

The ZDSB200S Subwoofer Kit features a nominal impedance of 3.6Ω, enabling seamless integration with your BMW’s audio system. This impedance level ensures compatibility and allows the subwoofer to work efficiently with your existing amplifier.

The subwoofer’s basket is constructed from a combination of aluminum and plastic, providing a sturdy and rigid structure that minimizes vibrations and distortions. This design ensures that the subwoofer operates at its full potential, delivering clean and impactful bass.

With a rubber surround, the ZDSB200S Subwoofer Kit provides superior damping properties, allowing for precise cone motion and reducing unwanted resonances. This results in tighter and more controlled bass reproduction, enhancing the overall sound quality of your BMW’s audio system.

The subwoofer’s magnet is made from N35 material, which offers excellent magnetic properties for enhanced efficiency and improved sound quality. The use of high-quality magnet materials ensures that the subwoofer delivers a powerful bass response without sacrificing clarity.

The ZDSB200S Subwoofer Kit features a sandwich composite cone, which combines lightweight materials with rigidity for optimal performance. This cone construction allows for accurate sound reproduction and minimizes distortion, ensuring that every detail of your music is reproduced faithfully.

Upgrade your BMW’s audio system with the ZDSB200S 8 Inch 150W BMW Subwoofer Kit and unlock a new dimension of sound. With its exceptional specifications, precision engineering, and advanced technology, this subwoofer kit will elevate your driving experience to unprecedented levels.

Specifications

• Speaker Size: 8” (200mm) Subwoofer
• Power Handling (RMS): 75W
• Power Handling (MAX): 150W
• Frequency Response: 37Hz – 3000Hz
• 2″ (50mm) Voice coil
• Nominal Impedance: 3.6Ω
• Basket – Aluminium / Plastic
• Surround – Rubber
• Magnet – N35
• Cone Material – Sandwich Composite Cone