Goldhorn DSPA 406 | 6 Channel DSP / 4 x 65w Amplifier

Compact and powerful DSP amplifier with seamless Bluetooth integration, designed for high-quality car audio enhancement.

Goldhorn DSPA 406 | 6 Channel DSP / 4 x 65w Amplifier|Goldhorn|Audio Intensity
Goldhorn DSPA 406 | 6 Channel DSP / 4 x 65w Amplifier|Goldhorn|Audio Intensity
Cost-Effective Performance
Bluetooth 5.0 with aptX HD
Compact Size
High-Level and RCA Inputs
6 Channel DSP RCA Pre Out: 6 Ch @ 4vAmplifier: 4 x 65W Class AB
Regular price $ 349.99
Sale price $ 349.99 Regular price $ 399.99
Unit price
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Goldhorn DSPA 406 | 6 Channel DSP / 4 x 65w Amplifier|Goldhorn|Audio Intensity

Goldhorn DSPA 406 | 6 Channel DSP / 4 x 65w Amplifier

Regular price $ 349.99
Sale price $ 349.99 Regular price $ 399.99
Unit price

Goldhorn DSPA 406: Compact Powerhouse for Your Car Audio


The Goldhorn DSPA 406 is a versatile 6-channel DSP amplifier, offering 4 x 65W output to improve your vehicle's audio quality significantly. Its compact form factor makes it easy to integrate, while the high-fidelity Bluetooth 5.0 connection ensures seamless streaming of your favorite music.


Class AB Amplification for Uncompromising Quality


Equipped with Class AB amplifier technology, the DSPA 406 delivers robust power output with minimal distortion. Its four amplified channels offer a clear, impactful audio experience, while additional RCA outputs make expansion straightforward. This design suits a variety of car audio configurations. Voltage Build-Up Technology further ensures consistent, reliable power even at higher volumes.


Superior Connectivity with Bluetooth 5.0


The DSPA 406 features Bluetooth 5.0 with aptX HD support, allowing high-quality streaming from any compatible device. This connection reduces latency, providing smooth, uninterrupted playback. In addition to Bluetooth, it includes high-level and RCA inputs to accommodate different vehicle systems. Bluetooth integration ensures easy control and versatile usage.


Practical Features for Enhanced Driving Experience


Integrated Navigation Mix functionality keeps you informed without interrupting your music, making drives more convenient. The compact design allows for installation flexibility, ideal for first-time upgrades or more advanced systems. With a focus on practicality and sound quality, the DSPA 406 stands out in its class. Its built-in DSP allows precise tuning, making it perfect for audiophiles looking for optimal in-car audio.

Specification Details
Model DSPA406
DSP Chip ADAU1450
DAC Chip PCM1690
ADC Chip 2 x PCM1862
Opamp NJM4580 & MC33078
Capacitors High Temperature for High Reliability to 105°C electrolytics and WIMA film Caps
PC Connection USB - B
Processing Functions Crossover Frequency: 20Hz ~ 20kHz @ 1dB steps / Master Gain: 0 ~ 60dB / Channel gains: -20dB ~ +5dB, Polarity: Phase Reversal 0 or 180 / EQ filters Q 0.5 ~ 15 @ 0.1 steps / Input Mixer, Three Linking Functions: Volume Linking- Absolute or Relative EQ Linking - Relative or Absolute Crossover Linking - With EQ link on, Freq Link button will link crossovers
Output EQ EQ bands: All Channels 31 @ ± 15dB in 0.1dB Steps Filter Functions: Peak / High Shelf / Low Shelf / 1st order All Pass/ 2nd Order All Pass
Crossover Butterworth & Bessel:6,12,18,24,30,36,42,48dB / Linkwitz: 12, 24, 36dB
Delay 0 ~ 15ms / 0.02 ms Steps
Inputs 4 x Hi / 4 x RCA / BT
XO Phase Rotation Variable Phase shift at HP and LP filters from 0° ~ 359°
Input EQ EQ bands: All Channels 5 bands @ ± 15dB in 0.1dB Steps Filter Functions: Peak / High Shelf / Low Shelf / 1st order All Pass/ 2nd Order All Pass Input Delay: 0 ~ 10ms in 0.02 Steps
Frequency Resp 20Hz ~ 40kHz
Operating Voltage 10V ~ 16V
Input Sens (V) RCA 2.8V Max
Input Sens (V) Hi 10V
RCA Out Voltage 4 x 6V
RCA Out Specs THD+Noise < 0.003 S/N >108
Amp Outputs 65W x 4
Amplifier Class Class AB
Dimensions (mm) 180 x 129 x 36
Start-Stop ready Yes
EPS Error Protection System Yes
Finish Black anodized Aluminum
Auto Turn On via DC Offset or Signal Sensing Yes
Remote Turn on Output Yes
Built in Bluetooth Yes
THD+Noise Amplifier 0.03%
S/N ratio Amplifier >100dB
THD+Noise RCA out <0.002%
S/N ratio RCA out 105dB
Fuse Rating 10A
Input impedance 6 Ohms
Controller Optional
Input Mixer Yes
Presets 8
Software Interface 65 bit Windows 8, Windows 8.1 or Windows 10/11
Navigation Mode Yes
Power off Delay Yes Variable
Noise Gate (analog Input) Yes
Automatic Switching Config. Yes
Input EQ 5 Bands / Chan
Input All Pass Filters 1st and 2nd Order
Input Delay 0 ~ 10ms / Chan
Variable Phase 0~360 at crossover filters Yes
Output EQ 31 All Channels
Hi-Shelf, Low-Shelf Yes
Output All Pass filters 31 per channel
Output Delay 0 ~ 15ms @ .02 steps

What's in the Box?

  • Goldhorn DSPA 406 | 6 Channel DSP / 4 x 65w Amplifier Goldhorn DSPA 406 | 6 Channel DSP / 4 x 65w Amplifier
  • Goldhorn BT / WiFi Antenna Goldhorn BT / WiFi Antenna
  • Goldhorn Owners Manual Goldhorn Owners Manual
  • Goldhorn Power and Speaker Harness Goldhorn Power and Speaker Harness
  • Goldhorn 3m Tuning Cable - USB Goldhorn 3m Tuning Cable - USB
Goldhorn USA Software

Software can be downloaded from the Goldhorn-USA download page.

High-Quality Amplification for Improved Sound

Class AB Power Amplifier

The Goldhorn DSPA 406 has a Class AB amplifier, delivering 4 x 65W of power to improve sound clarity. This technology minimizes distortion, ensuring that your audio remains pure and impactful. With a strong output, it is capable of driving speakers to their full potential, resulting in a richer, more immersive audio experience compared to factory-installed systems.

Consistent Audio Output with Voltage Build-Up Technology

Voltage Build-Up Technology ensures consistent power delivery, providing reliable audio quality even at higher volumes. This feature helps to avoid sudden dips or fluctuations that can degrade the listening experience. Stabilizing the voltage allows for sustained performance across all volume ranges. This means that users enjoy a stable, high-quality sound regardless of driving conditions.

Versatile Connectivity Options

High-Level and RCA Inputs

The DSPA 406 supports high-level and RCA inputs, allowing it to integrate easily with a wide range of car audio systems. High-level inputs make it compatible with factory head units, while RCA inputs are suitable for aftermarket systems. This dual connectivity option ensures that the DSPA 406 can be added to nearly any vehicle without extensive modifications. It simplifies installation, making it accessible for both DIY enthusiasts and professional installers.

Six RCA Outputs for Expandability

The amplifier comes with six RCA outputs, offering options for expanding your car audio system. These outputs allow you to add amplifiers or integrate subwoofers for a more comprehensive sound setup. This expandability is ideal for users wanting to start with a basic system and upgrade over time. It provides a solid foundation that can grow alongside your audio preferences.

Compact Design for Easy Installation

Space-Saving Size

The Goldhorn DSPA 406's compact form factor makes it easy to install, even in vehicles with limited space. It can be conveniently mounted under a seat or in other tight areas, ensuring it does not interfere with the vehicle's interior. Despite its small size, the DSPA 406 delivers substantial power and performance. This makes it an excellent choice for users who want powerful audio without compromising cabin space.

Ideal for First-Time Upgrades

The DSPA 406 is designed to be user-friendly, making it an ideal choice for those new to car audio upgrades. Its compatibility with factory and aftermarket systems ensures it can be easily integrated without major modifications. This ease of installation makes it accessible for anyone looking to enhance their car audio experience. It provides a noticeable upgrade over factory audio systems without requiring extensive technical knowledge.

Frequently Asked Questions

What is the power output of the Goldhorn DSPA 406?

The Goldhorn DSPA 406 provides 4 x 65W of power to deliver a powerful audio experience in your vehicle. This output is achieved using Class AB amplifier technology, which ensures minimal distortion while producing clear, rich sound. Additionally, the six-channel configuration provides flexibility for integrating this amplifier with various speaker setups, making it suitable for enhancing both small and large car audio systems.

Can I connect my phone via Bluetooth?

Yes, the Goldhorn DSPA 406 features Bluetooth 5.0, which allows you to wirelessly connect your phone or other Bluetooth-compatible devices for music streaming. It supports the aptX HD codec, which offers high-resolution audio quality, reducing the loss of quality typically associated with wireless streaming. This ensures a clear, detailed audio experience without the hassle of physical connections, making it convenient for modern, on-the-go listening.

Does it support high-level and RCA inputs?

The DSPA 406 is equipped to handle both high-level and RCA inputs, making it compatible with a wide range of vehicle audio systems. High-level inputs are useful for integration with factory-installed head units that don't have RCA outputs, while RCA inputs allow for easy integration with aftermarket systems. This dual compatibility ensures that the amplifier can be installed in nearly any car, regardless of the existing audio configuration.

What is the Navigation Mix feature?

The Navigation Mix feature is designed to keep you informed by allowing GPS voice commands to play through your speakers without completely pausing or interrupting your music. This means you can listen to your directions while your background audio continues to play at a lower volume. It provides a seamless and safe driving experience, ensuring you never miss an important turn or exit while still enjoying your music.

Is the Goldhorn DSPA 406 easy to install?

Yes, the compact size and versatile input options of the Goldhorn DSPA 406 make it relatively easy to install in most vehicles. It is designed to fit under seats or in other tight spaces, which is particularly useful in vehicles with limited space for aftermarket components. Additionally, the compatibility with both high-level and RCA inputs reduces the need for adapters or converters, simplifying the installation process for both beginners and experienced users.

Does the DSPA 406 have expandability options?

The DSPA 406 has six RCA outputs that allow for future expansion of your car audio system. This means you can add additional amplifiers or connect external subwoofers to create a more dynamic audio experience. This expandability makes it an ideal choice for users who may wish to start with a basic setup but have the potential to build a more complex system over time as their needs or preferences evolve.

What Bluetooth codecs are supported?

The Goldhorn DSPA 406 supports multiple Bluetooth codecs, including aptX, AAC, and SBC. These codecs help deliver high-quality audio over a wireless connection, with aptX HD providing nearly lossless sound, which is perfect for audiophiles. The use of AAC and SBC codecs also ensures broad compatibility, meaning that most smartphones and Bluetooth devices will be able to connect and deliver excellent audio quality without any manual adjustments.

What is Voltage Build-Up Technology?

Voltage Build-Up Technology in the Goldhorn DSPA 406 is designed to provide stable, consistent audio output, even during power fluctuations or at higher volume levels. It works by regulating and boosting the incoming voltage to maintain a steady power supply to the speakers, preventing audio distortion and dips in performance. This feature ensures that your music sounds full and clear, regardless of the volume, and provides a more reliable listening experience during demanding use.

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