---
product_id: 453216917
title: "SPL Show S8 DSP Compact Digital Interface Processor 6 in + Digital in & 8 outputs"
brand: "hertz"
price: "€ 466.75"
currency: EUR
in_stock: true
reviews_count: 10
category: "Hertz"
url: https://www.desertcart.ie/products/453216917-spl-show-s8-dsp-compact-digital-interface-processor-6-in
store_origin: IE
region: Ireland
---

# Bluetooth 5.0 wireless control 6 analog + 1 digital input 96kHz/24-bit Hi-Res audio SPL Show S8 DSP Compact Digital Interface Processor 6 in + Digital in & 8 outputs

**Brand:** hertz
**Price:** € 466.75
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your ride’s sound game with pro-grade DSP precision — don’t just listen, experience it!

## Quick Answers

- **What is this?** SPL Show S8 DSP Compact Digital Interface Processor 6 in + Digital in & 8 outputs by hertz
- **How much does it cost?** € 466.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/453216917-spl-show-s8-dsp-compact-digital-interface-processor-6-in)

## Best For

- hertz enthusiasts

## Why This Product

- Trusted hertz brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Wireless DSP Control:** Effortlessly fine-tune every parameter on-the-go via the intuitive CONFIGURATOR app with Bluetooth 5.0 connectivity for iOS and Android.
- • **Precision Audio Tuning:** Advanced 32-bit DSP enables detailed EQ, time alignment, and signal summing to elevate mids and flatten OEM signals for a flawless soundstage.
- • **Compact Powerhouse Design:** Sleek, corrosion-resistant metal and composite casing fits discreetly behind your glove box without sacrificing performance or style.
- • **Hi-Res Certified Precision:** Experience crystal-clear sound with 96kHz/24-bit processing, delivering audiophile-grade clarity that transforms your car audio into a concert hall.
- • **Ultimate Input Flexibility:** Seamlessly integrate 6 high/low-level analog inputs plus a digital coaxial input for maximum configuration freedom tailored to your setup.

## Overview

The Hertz SPL Show S8 DSP is a compact, high-performance digital signal processor designed for car audio enthusiasts seeking Hi-Res certified 96kHz/24-bit sound quality. Featuring 6 analog inputs, 1 digital coaxial input, and 8 outputs, it offers versatile configuration options managed by a powerful 32-bit DSP. Its corrosion-resistant metal/composite housing ensures durability, while Bluetooth 5.0 enables wireless control via a dedicated app. Ideal for precise audio tuning, it enhances OEM signals and supports advanced EQ and time alignment, all packed into a sleek, space-saving design.

## Description

desertcart.com: Hertz SPL Show S8 DSP Compact Digital Interface Processor 6 in + Digital in & 8 outputs : Electronics

Review: Excellent ! - This has a lot of wires to connect. So, I recommend making your own harness to make things neat. but not necessary. The setup was tedious, but once I figured it out, it works with no problems. The sound is excellent. It seems to have cleared up the signal from my OEM head unit (2022 WRX). It's easy to use the EQ, etc. It's very accurate with the adjustments. The time alignment is a little finicky, but works very well. One of the best things about this DSP is that it flattens the OEM head unit signal and can sum front and rear to get a full range signal, if that's something you need to do. From there, you can EQ what you need to/want to. It drastically improved the mids. Just an amplifier doesn't cut it. You need something like this to increase specific Hz. Size: This is very small, esp. for it's capabilities. I fit it up behind my glove box no problem at all. No noise induction from the HVAC blower motor either. It uses differential inputs, and the sound is crystal clear. It's very classy looking too, esp. compared to so many other DSPs I've checked. Also, other ones like JL are way too big and clunky. For the price, I highly doubt you will find a better DSP.
Review: Poor Quality Control. Even Worse Tech Support - I have (had) a really nice stereo set up. I don't have a dsp so thought that would be one last piece I could add to properly tune it. I spent all day putting this in line. It is 1000% properly connected. It turns on and lights show it is working correctly. BUT..... I can't connect via usb or bluetooth. I have tried on 3 different Apple devices. I even went today and bought a cheap Windows laptop thinking that would crack the code. Nothing. Now all it does is block the signal to my amps so my system puts out zero sound. I very much regret the purchase. Now I have to wait for God knows how long to get tech support from Hertz. If I don't hear from them tomorrow, I will probably just take it apart and get my money back. Will take me another few hours to rewire by system again. Major waste of time. Zero stars. Update: I bought a second unit. It connected via BT and USB. It works fairly well... However there are still glitches with the software (It's reversing ch. 3 and 4 in the software even though the inputs and outputs have the correct information) I am trying to get worked out with support and there are features lacking that should be available at this price point (being able to see all channel's eq curves at once). All in all it sounds good and is working well. Tech support is one person and he's impossible to get a hold of. The main draw for me to this unit is it's size. If not for that I would be sending it back and getting a JL Audio DSP. Hopefully I can get the remaining bugs fixed. I would give 1 star for quality control, 3 stars because it does sound good and it's nice it connects to ios as well as a PC. But it's a bit buggy. and 0 stars for impossible tech support.

## Features

- S8 DSP is a distilled essence of technology at the service of the highest audio quality in a corrosion-free case cast in metal and composite materials.
- S8 DSP processes the audio signal with 96 kHz / 24-bit resolution and has obtained the Hi-Res certification from the JAS (Japan Audio Society), an acknowledgment that certifies the extreme level of audio performance achieved.
- The powerful 32-bit DSP manages 6 high/low-level analog input channels, one digital coaxial input, and 8 output channels, offering maximum freedom of configuration to the specialist.
- The SPDIF coaxial input is ideal for digital connection with a Hi-Res player, a solution that allows for maximum listening quality.
- We can control every parameter of the DSP wirelessly using the CONFIGURATOR App for Apple and Android tablets and smartphones, thanks to the integrated Bluetooth 5.0 receiver

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B1VRKC4Z |
| Best Sellers Rank | #81,973 in Electronics ( See Top 100 in Electronics ) #92 in Car Amplifier Equalizers |
| Customer Reviews | 3.6 3.6 out of 5 stars (35) |
| Date First Available | May 20, 2022 |
| Item Weight | 1.45 pounds |
| Item model number | S8-DSP |
| Package Dimensions | 9.41 x 6.85 x 3.43 inches |
| Warranty | 1-Year Manufacturer Warranty |

## Images

![SPL Show S8 DSP Compact Digital Interface Processor 6 in + Digital in & 8 outputs - Image 1](https://m.media-amazon.com/images/I/61QeLEo1e+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent !
*by R***. on October 2, 2024*

This has a lot of wires to connect. So, I recommend making your own harness to make things neat. but not necessary. The setup was tedious, but once I figured it out, it works with no problems. The sound is excellent. It seems to have cleared up the signal from my OEM head unit (2022 WRX). It's easy to use the EQ, etc. It's very accurate with the adjustments. The time alignment is a little finicky, but works very well. One of the best things about this DSP is that it flattens the OEM head unit signal and can sum front and rear to get a full range signal, if that's something you need to do. From there, you can EQ what you need to/want to. It drastically improved the mids. Just an amplifier doesn't cut it. You need something like this to increase specific Hz. Size: This is very small, esp. for it's capabilities. I fit it up behind my glove box no problem at all. No noise induction from the HVAC blower motor either. It uses differential inputs, and the sound is crystal clear. It's very classy looking too, esp. compared to so many other DSPs I've checked. Also, other ones like JL are way too big and clunky. For the price, I highly doubt you will find a better DSP.

### ⭐ Poor Quality Control. Even Worse Tech Support
*by J***O on February 16, 2025*

I have (had) a really nice stereo set up. I don't have a dsp so thought that would be one last piece I could add to properly tune it. I spent all day putting this in line. It is 1000% properly connected. It turns on and lights show it is working correctly. BUT..... I can't connect via usb or bluetooth. I have tried on 3 different Apple devices. I even went today and bought a cheap Windows laptop thinking that would crack the code. Nothing. Now all it does is block the signal to my amps so my system puts out zero sound. I very much regret the purchase. Now I have to wait for God knows how long to get tech support from Hertz. If I don't hear from them tomorrow, I will probably just take it apart and get my money back. Will take me another few hours to rewire by system again. Major waste of time. Zero stars. Update: I bought a second unit. It connected via BT and USB. It works fairly well... However there are still glitches with the software (It's reversing ch. 3 and 4 in the software even though the inputs and outputs have the correct information) I am trying to get worked out with support and there are features lacking that should be available at this price point (being able to see all channel's eq curves at once). All in all it sounds good and is working well. Tech support is one person and he's impossible to get a hold of. The main draw for me to this unit is it's size. If not for that I would be sending it back and getting a JL Audio DSP. Hopefully I can get the remaining bugs fixed. I would give 1 star for quality control, 3 stars because it does sound good and it's nice it connects to ios as well as a PC. But it's a bit buggy. and 0 stars for impossible tech support.

### ⭐⭐⭐⭐⭐ Easy to use and connect.
*by D***A on December 14, 2025*

Easy to use and Easy to connect. In fact i can connect to my IPAD, MAC Book and Iphone 15. Works flawlessly. Easy setup and you will learn it quickly.

## Frequently Bought Together

- Hertz SPL Show S8 DSP Compact Digital Interface Processor 6 in + Digital in & 8 outputs
- Hertz SPL Show Series SV-200-NEO 8 in. (200mm) SPL 4-Ohm Midrange Speakers (Pair) with Neo Magnets and UV/Waterproofing
- Hertz SPL Show SP 4.900 D-Class 4 Channel Amplifier 250 WRMS x 4 at 2Ω (IP55 Rated)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-20*