---
product_id: 992191
title: "Earthquake Sound CP-8 Couch Potato - 300W Peak Powered 8-Inch Slim Home Theater Subwoofer with Down-Firing Bass Reflex Enclosure Design (Black Laminate, Single)"
brand: "earthquake"
price: "₩947267"
currency: KRW
in_stock: true
reviews_count: 5
url: https://www.desertcart.kr/products/992191-earthquake-sound-cp-8-couch-potato-300w-peak-powered-8
store_origin: KR
region: South Korea
---

# 7-inch slim height 300W peak power output 8-inch down-firing woofer Earthquake Sound CP-8 Couch Potato - 300W Peak Powered 8-Inch Slim Home Theater Subwoofer with Down-Firing Bass Reflex Enclosure Design (Black Laminate, Single)

**Brand:** earthquake
**Price:** ₩947267
**Availability:** ✅ In Stock

## Summary

> 🎶 Slim design, massive bass — your couch’s new best friend!

## Quick Answers

- **What is this?** Earthquake Sound CP-8 Couch Potato - 300W Peak Powered 8-Inch Slim Home Theater Subwoofer with Down-Firing Bass Reflex Enclosure Design (Black Laminate, Single) by earthquake
- **How much does it cost?** ₩947267 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/992191-earthquake-sound-cp-8-couch-potato-300w-peak-powered-8)

## Best For

- earthquake enthusiasts

## Why This Product

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

## Key Features

- • **Ported Precision:** 3-inch bass-reflex port maximizes output and clarity even when hidden away.
- • **Smart Auto-Sensing:** Auto On/Off signal detection keeps your system efficient and ready to impress.
- • **Powerful Bass Impact:** 300W peak power delivers deep, room-shaking bass that commands attention.
- • **Sleek Under-Couch Fit:** At just 7 inches tall, it disappears under your sofa, saving space without sacrificing sound.
- • **Down-Firing Woofer Magic:** Utilizes floor as an acoustic amplifier for richer, more tactile low frequencies.

## Overview

The Sound CP-8 Couch Potato is a sleek, 7-inch tall powered subwoofer featuring an 8-inch down-firing driver and a 300W peak Class AB amplifier. Its ported bass-reflex enclosure and smart auto-sensing technology deliver deep, precise bass while fitting discreetly under furniture, perfect for millennial professionals seeking powerful home theater sound without clutter.

## Description

Earthquake Sound CP-8 Couch Potato - 300W Peak Powered 8-Inch Slim Home Theater Subwoofer with Down-Firing Bass Reflex Enclosure Design (Black Laminate, Single)

## Features

- Slim Form Factor: At 7" in height, the CP-8 can be stored under most sofas and beds or on its side if there is space between the back of the couch and the wall
- Bass to Unused Space: Offers flexibility and concealment without sacrificing valuable floor space allowing for closer proximity to the listener for added tactile sensation and faster bass response time
- Down-Firing Woofer: 8" down-firing active driver with 2" high-temperature voice coil and long excursion Santoprene surround enhances output by utilizing the floor as an acoustic amplifier
- Ported Enclosure: A large 3" bass-reflex port design maximizes output by directing bass out from under a couch or bed without losing precision and energy and provides a high output of the lower frequencies
- Built-in 150W continuous / 300W peak high-efficiency class AB amplifier; 20Hz–180Hz frequency response; 40Hz–120Hz 12dB/Oct variable crossover; Auto/On/Off signal sensing; 0–180 degree phase control; low-level and high-level inputs; low-level and crossed high-level outputs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Is Electric | Yes |
| Power Source | AC |
| Speaker Maximum Output Power | 600 Watts |
| Subwoofer Connectivity Technology | Wired |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Low-Level & High-Level Connections |
| Audio Driver Size | 8 Inches |
| Item Weight | 24.6 Pounds |
| Item Dimensions D x W x H | 12"D x 24"W x 7"H |
| Unit Count | 1.0 Count |
| Impedance | 8 Ohm |
| Compatible with Vehicle Type | Car |
| Compatible Devices | Universal |
| Speaker Size | 8 Inches |
| Controller Type | Button |
| Color | Black Laminate |
| Is Waterproof | FALSE |
| Audio Output Mode | Surround |
| Mounting Type | Floor Standing |
| Speaker Type | Subwoofer |
| Additional Features | Low-Profile Subwoofer, High Resolution Audio |
| Recommended Uses For Product | Home Audio |
| Subwoofer Diameter | 8 Inches |

## Product Details

- **Brand:** EARTHQUAKE
- **Speaker Maximum Output Power:** 300 Watts
- **Frequency Response:** 180 Hz
- **Connectivity Technology:** Low-Level & High-Level Connections
- **Audio Output Mode:** Surround

## Images

![Earthquake Sound CP-8 Couch Potato - 300W Peak Powered 8-Inch Slim Home Theater Subwoofer with Down-Firing Bass Reflex Enclosure Design (Black Laminate, Single) - Image 1](https://m.media-amazon.com/images/I/61QX1hN-JxL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: It has no lfe input. would work welll with just 1 rca in the left input as others ?**
A: Yes, you can just run a cable from LFE out to Left in. Since your receiver is already filtering high frequencies from the LFE out, you don't need to do so in the subwoofer, so you might want to turn the crossover knob to its highest setting in the subwoofer.

**Q: How tall is it without the legs inserts? Can you use the sub without them as well?**
A: It is 7 inches tall and to get the best effect you must use the legs as there is a downward pointing speaker.

**Q: What is the height on the unit including the feet?**
A: The feet are approx. 3 inches but they fasten to an inset, so I would say add an extra 2.5 inches to the height to be safe. Also, I believe the rubber feet could be cut if needed, as the screw in the feet sits closer to the base of the box than the floor. I use my box on it's side, resting on cork board and do not use the feet.

**Q: This is a 2009-2010 model. do you think it will do well the job with a denon 2017 reciever and a 5 hifi speakers 2014 models ?**
A: Yes. I have an older Denon AVR 1911 but I don't think a newer Denon would have any problems. I wasn't sure about the CP8 but it sounds great. I have it connected to 25 ft cable that goes underneath the house.  Enjoy.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent sub when used as intended!
*by C***H on March 10, 2016*

I have been an audio nut for as long as I can remember and became aware of Earthquake Sound in the 90s in the car audio market. They have always been known for making solid products at reasonable prices, so when I saw the CP8, I was intrigued.I originally bought one a few years ago to compliment my computer audio system which consists of a Peachtree Audio Decco2 integrated amplifier and D5 bookshelf speakers, as well as Sennheiser HD 650 headphones for when I need to be a little quieter. This system cost a couple of thousand dollars all told, even after "bargain" shopping, which puts me into "He's clearly crazy!" category for my friends, but "mid-fi" category for audiophiles. Hopefully, this gives you an idea of my audio experience for this review.This sub fits perfectly in the cavernous foot well of my over-sized desk, and since it and my desk are both black, it blends in very well. It gets a substantial low bass boost, similar to corner loading, because of my foot well, but doesn't get too boomy as a result, which surprised me to be honest. It plays low enough that it will cover all but the most infrasonic of music, and in my small office, will energize the room with bass quite nicely, especially when sitting right on top of it at my desk. This system sounds phenomenal to me while seated at my desk (which is the most important thing)...but the bass quality varies dramatically around in the room due to its placement in the foot well.Given its excellent performance in my desktop system, I decided to get one for my office "home theater." My significant other wanted my "ugly speakers" out of the living room. Surprisingly, I was able to talk my way into keeping the sub...whew! So, I recently replaced those old speakers with in-ceiling surround sound (GoldenEar HTR 7000...another highly recommended product!). I re-purposed the old ones to my office and needed a sub. With the lack of space in my office, I bought a new CP8 to go behind the love seat, and it sounds wonderful, as I knew it would. It goes plenty deep, shakes the love seat nicely during explosions, and fills the room with bass.This won't replace my giant 15" sub and couch bass shakers in my primary home theater (how I was able to talk the S.O. into keeping those, I don't know!), it's a small 8" woofer after all. It's designed as an auxiliary sub to be placed right next to the listener in order to provide a similar tactile sensation as the bass shakers in bigger rooms and systems, but performs well enough that it can also be used in smaller situations like my office as the primary sub. Use it as designed immediately next to your listening position and it will perform excellently!

### ⭐⭐⭐⭐⭐ Perfect for its niche
*by J***R on June 4, 2025*

If you need a slim sub, do not hesitate. 150W is not a lot of power, but in a small room it's plenty. I turned it to half volume, dialed in another -6 dB on my Wiim Ultra, and the room EQ knocked it down even more! Then again, I disregarded the name and did not place it next to or under my couch. All subs benefit from corner-loading. Placed in a corner, the walls & floor of your room act as a horn, amplifying the bass & creating fewer reflections that merge & cancel each other. I appreciate the simplicity: there's no app required to tune it, but that's fine because receivers and streamers all have pretty good bass sync & level controls these days. This is just a very basic sub that does one thing and does it well, at a minimum price in space and dollars. While it's no replacement for a home theater sub designed to pulverize kidney stones in large rooms, it's quite good at filling in the bottom octave that bookshelf speakers can't reach, giving them a full, rich sound. If hidden & properly adjusted, your guests will never notice it, and might even believe your main speakers are doing all the work.Amazon sells 90° RCA cables, so if the included ones aren't long enough, there's no problem finding one that will still work. Also, rubber furniture anti-slip pads are a good idea. At higher volumes the plastic feet will walk the sub on a wood or tile floor! Damping the case vibration improves bass response as well.

### ⭐⭐⭐⭐⭐ Best slim sub I have ever tested.
*by G***A on April 7, 2025*

This is an amazing subwoofer for music when your option is no subwoofer or having one that needs to be hidden. For movies it was a bit less consistent. It did great for movies with impacts like Top Gun and music and clearly punched well above its weight, but struggled with classic subwoofer tests like Oppenheimer or Titan AE. What is good is that you don’t hear abnormal stress or clattering under these conditions, it just doesn’t output as much SPL as you know is there.I am very impressed with its performance, despite having 15 and 18 inch woofers elsewhere.

## Frequently Bought Together

- Earthquake Sound CP8 Couch Potato - 300W Peak Powered 8-Inch Slim Home Theater Subwoofer with Down-Firing Bass Reflex Enclosure Design (Black Laminate, Single)
- Cable Matters 2-Pack Right Angle RCA Adapter, 90 Degree RCA Adapter
- SOUNDFAM 90 Degree RCA Cable 3ft/1M,Right Angle Subwoofer Cable Male to Male for Subwoofer，Amplifier-Grey

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-03*