It has no lfe input. would work welll with just 1 rca in the left input as others ?

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.

How tall is it without the legs inserts? Can you use the sub without them as well?

It is 7 inches tall and to get the best effect you must use the legs as there is a downward pointing speaker.

What is the height on the unit including the feet?

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.

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 ?

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.

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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)

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)

Product ID: 992191

Details

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

📏7-inch slim height

🔊300W peak power

⬇️8-inch down-firing woofer

¥131637

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Description

🎬 Feel the bass, not the bulk — the CP-8 Couch Potato fits your space and your vibe.

POWERFUL BASS IMPACT - Delivering up to 300 watts peak power, it transforms your home theater with deep, room-shaking bass that you can feel.
SLEEK UNDER FURNITURE FIT - At just 7 inches tall, the CP-8 slides effortlessly under sofas and beds, maximizing your space without compromising style.
SPACE SMART PORTED DESIGN - A 3-inch bass reflex port directs powerful low frequencies under furniture, preserving clarity while saving floor space.
CUSTOMIZABLE SOUND CONTROL - Variable crossover (40Hz–120Hz) and 0–180° phase control let you tailor bass response perfectly to your setup.
DOWN FIRING ACOUSTIC AMPLIFIER - The 8-inch down-firing woofer uses the floor as a natural amplifier, enhancing bass precision and tactile sensation.

The Earthquake Sound CP-8 Couch Potato is a compact, 7-inch tall powered subwoofer featuring an 8-inch down-firing woofer and a 300W peak Class AB amplifier. Designed for discreet placement under furniture, it delivers precise, deep bass with customizable crossover and phase controls. Its ported enclosure maximizes low-frequency output while saving floor space, making it ideal for home theaters seeking immersive sound without clutter.

Specifications

ASIN	B005W8NEXA
Additional Features	Hi Res Audio, Low-Profile Subwoofer
Antenna Location	Home Audio
Audio Driver Size	8 Inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Surround
Best Sellers Rank	#107,870 in Electronics ( See Top 100 in Electronics ) #213 in Home Audio Subwoofers
Brand	EARTHQUAKE
Built-In Media	Earthquake CP-8 powered subwoofer, 6 foot right angled RCA and power cable, optional side mounting feet, product manual with warranty
Color	Black Laminate
Compatible Devices	Universal
Compatible with Vehicle Type	Car
Connectivity Protocol	Wired Connection
Connectivity Technology	Low-Level & High-Level Connections
Control Method	Touch
Controller Type	Button
Customer Package Type	Standard Packaging
Customer Reviews	4.3 4.3 out of 5 stars (99)
Enclosure Material	Pressed Paper
Frequency Response	180 Hz
Global Trade Identification Number	00068975900176
Impedance	8 Ohms
Is Electric	Yes
Is Waterproof	False
Item Dimensions D x W x H	12"D x 24"W x 7"H
Item Type Name	Slim 8-Inch Powered Home Theater Subwoofer \| 300 Watts, Low Profile
Item Weight	24.6 Pounds
MP3 player	No
Manufacturer	EARTHQUAKE
Model Name	CP8 Couch Potato
Model Number	CP8
Mounting Type	Floor Standing
Number of Audio Channels	5.1
Number of Items	1
Power Source	AC
Speaker Maximum Output Power	300 Watts
Speaker Size	8 Inches
Speaker Type	Subwoofer
Specific Uses For Product	Home Audio
Subwoofer Connectivity Technology	Wired
Subwoofer Diameter	8 Inches
UPC	033171561049 068975900176
Unit Count	1.0 Count
Warranty Description	5 years limited warranty
Warranty Type	Limited
Wireless Technology	No Wireless Communication Technology
Woofer Diameter	8 Inches

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¥131637

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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