---
product_id: 591330628
title: "GTHS81PRO 8\" Amplified Subwoofer 320-Watts Active Flat Compact Design"
brand: "blaupunkt"
price: "฿22827"
currency: THB
in_stock: true
reviews_count: 8
category: "Blaupunkt"
url: https://www.desertcart.co.th/products/591330628-gths81pro-8-amplified-subwoofer-320-watts-active-flat-compact-design
store_origin: TH
region: Thailand
---

# 90dB signal-to-noise ratio Ultra-thin 2.87" profile 320W max power GTHS81PRO 8" Amplified Subwoofer 320-Watts Active Flat Compact Design

**Brand:** blaupunkt
**Price:** ฿22827
**Availability:** ✅ In Stock

## Summary

> 🚗 Feel the bass, not the bulk — compact power that moves with you!

## Quick Answers

- **What is this?** GTHS81PRO 8" Amplified Subwoofer 320-Watts Active Flat Compact Design by blaupunkt
- **How much does it cost?** ฿22827 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/591330628-gths81pro-8-amplified-subwoofer-320-watts-active-flat-compact-design)

## Best For

- blaupunkt enthusiasts

## Why This Product

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

## Key Features

- • **Space-Savvy Design:** Slim 2.87-inch profile fits discreetly under your car seat without sacrificing sound.
- • **Crystal Clear Audio:** High 90dB signal-to-noise ratio ensures immersive, distortion-free bass.
- • **Powerful Bass Boost:** 320 watts of amplified low-frequency power to energize every drive.
- • **Rugged Aluminum Build:** Durable aluminum alloy housing combines sleek style with lasting performance.
- • **Plug & Play Versatility:** Compatible with most car audio systems, with smart signal sensing for effortless integration.

## Overview

The BLAUPUNKT GTHS81PRO is a compact 8-inch amplified subwoofer delivering up to 320 watts of powerful bass through a sleek, ultra-thin aluminum design. Engineered for seamless under-seat installation, it offers a wide frequency response (20-150 Hz) and a high 90dB signal-to-noise ratio for clear, immersive sound. Compatible with most car audio systems, it features smart audio signal sensing for automatic on/off functionality, making it the perfect upgrade for millennial professionals seeking premium sound without compromising space.

## Description

What we sell? Genuine BRAND NEW Blaupunkt 8 in. 320-Watt SUPER FLAT COMPACT Amplified Subwoofer Product Highlights: The Blaupunkt 320-Watt 8 in. Amplified Subwoofer (GTHS81PRO) provides the perfect base tone for your car audio. The GTHS81 8 in. Car audio Amplified Subwoofer features variable bass boost, adjustable input sensitivity and a low pass filter. Maximum power is 320-Watt Technical Details: 320-Watt max power 115-Watt RMS power 20 Hz to 150 Hz Frequency Response Fuse Rating 15 Amp. 8 in. amplified subwoofer 320-Watt RCA low level input high level input variable bass boost phase selector Switch max power RMS power THD signal to noise ratio frequency response in out sensitivity High level in out sensitivity Low level fuse rating dimensions 0.15-Vot 1-Volt 0 to plus 12 dB 0 - 180° 320-Watt to 115-Watt 1% 91dB 20 Hz to 150 Hz 1-Volt - 8-Volt 150 mV - 6-Volt 15 Amp 13 in. x 9.45 in. x 2.87 in.

Review: Works as advertised! - Good bass for such a small box. We put this in a 09 Honda Fit. It didn't fit as well as we would have like under the passenger seat, so we put in under the rear seat in the middle. The subwoofer connections were the easy part, the hard part was getting the audio and power to the box. We used high level signals from the rear speakers and because the stock stereo had no "remote" wire to turn on the sub, it was great to find that the sub has audio signal sensing which turn it on/off as soon and the high level signal is sensed from the speakers. Unless you already have it, I would suggest you buy an install kit with at least 8 AWG "primary" wire (as suggested in the manual) and a minimum 40 Amp fuse mounted at the power source. Kits online are far cheaper than what I found around the Portland, OR area stereo shops. Overall, you won't be cracking windows with the bass from this unit, but it sure evens out the audio in the car as the stock 6.5" Honda Fit speakers provide little if any audible bass response.
Review: Small - Small, good quality

## Features

- 【320 Watt Power】8" Amplified Low Profile Subwoofer System offers a maximum power of 320 watts. It lets you pump out some great low frequency bass volume to enhance the party vibe making it a great addition to your car music audio system
- 【Specifications】Rated power: 320W. Frequency response: 20 Hz-150 Hz. Impedance: 4Ω. Voltage: 12V. Signal to noise ratio:> 90 dB. Material: aluminum alloy.Size: 13 x 9.45 x 2.87 Inches. A great addition to your car stereo sound system
- 【Compact and Convenient】Our under-seat subwoofer is ultra-thin and designed to fit seamlessly under your car seat, saving you space and enhancing your audio experience. With a compact size and slim profile, you won't even know it's there
- 【Versatile Compatibility】This subwoofer with built-in amp is compatible with a range of car audio systems, making it a versatile choice for any car or truck. Whether you're a music lover, a road trip enthusiast, or just looking for an upgrade, our subwoofer has got you covered
- 【High-Quality Sound】Our active subwoofer delivers a high-quality and immersive sound experience that will take your car audio to the next level. With its powerful performance and slim design, this subwoofer is the perfect addition to any car audio system

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CNF16988 |
| Audio Driver Size | 8 Inches |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #114,957 in Electronics ( See Top 100 in Electronics ) #570 in Car Component Subwoofers |
| Color | black or silver |
| Compatible Devices | Car Audio System |
| Control Method | App |
| Customer Package Type | FFP |
| Customer Reviews | 4.2 4.2 out of 5 stars (48) |
| Date First Available | November 15, 2023 |
| Impedance | 4 Ohms |
| Included Components | GTHS81PRO |
| Input Voltage | 1 Volts |
| Is Waterproof | FALSE |
| Item Weight | 11.14 pounds |
| Item model number | GTHS81PRO |
| Manufacturer | BLAUPUNKT |
| Material | Aluminum |
| Model Name | GTHS81PRO |
| Mounting Type | Flush Mount |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 12"D x 9"W x 3"H |
| Recommended Uses For Product | CAR, TRUCK, RTV, ATV, MOTORCYCLE |
| Signal-to-Noise Ratio | 90 dB |
| Speaker Size | 8 Inches |
| Speaker Type | Subwoofer |
| Special Feature | COMPACT SUBWOOFER |
| Specific Uses For Product | Potential uses: car audio upgrades, limited-space installations, mobile entertainment systems |
| Style | modern |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 203.2 Millimeters |
| Surround Sound Channel Configuration | 2.1 |
| UPC | 850053034565 |
| Unit Count | 1.0 Count |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Woofer Diameter | 203.2 Millimeters |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** BLAUPUNKT
- **Connectivity Technology:** RCA
- **Frequency Response:** 150 Hz
- **Speaker Maximum Output Power:** 320 Watts

## Images

![GTHS81PRO 8" Amplified Subwoofer 320-Watts Active Flat Compact Design - Image 1](https://m.media-amazon.com/images/I/71fFuk10FpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as advertised!
*by M***A on December 10, 2024*

Good bass for such a small box. We put this in a 09 Honda Fit. It didn't fit as well as we would have like under the passenger seat, so we put in under the rear seat in the middle. The subwoofer connections were the easy part, the hard part was getting the audio and power to the box. We used high level signals from the rear speakers and because the stock stereo had no "remote" wire to turn on the sub, it was great to find that the sub has audio signal sensing which turn it on/off as soon and the high level signal is sensed from the speakers. Unless you already have it, I would suggest you buy an install kit with at least 8 AWG "primary" wire (as suggested in the manual) and a minimum 40 Amp fuse mounted at the power source. Kits online are far cheaper than what I found around the Portland, OR area stereo shops. Overall, you won't be cracking windows with the bass from this unit, but it sure evens out the audio in the car as the stock 6.5" Honda Fit speakers provide little if any audible bass response.

### ⭐⭐⭐⭐⭐ Small
*by R***Z on January 29, 2026*

Small, good quality

### ⭐⭐⭐⭐ Good Thump.
*by S***M on November 2, 2025*

Plenty of thump. Was worried the 8" was not going to be enough. It's plenty. Just barely fits under the seat. Only negative is despite adjusting, it only covers the low, lows. There's a bit of a gap in the mid-range but that's a small complaint. Excellent purchase. Impressed with how strong it is.

## Frequently Bought Together

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-03-05*