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Volfenhag ZX-4715DVX

15" Dual 4 ohms Competition Subwooofer

Discontinued
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Volfenhag ZX4725 (ZX-4725)

OUR PRICE: $69.99

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Volfenhag ZX-4715DVX

15" Dual 4 ohms Competition Subwooofer

$69.99

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Ready to crush the competition with a subwoofer with extreme power? Well then, the Volfenhag ZX4715DVX subwoofers are for you! The quality industrial engineered design and structure give these drivers the ability to take very large amounts of power hour after hour while delivering ultra clean sound and little distortion. The German concept didn't stop with specifications only as they also have a very sexy red appearance to add to the fantastic overall impression.
  • Magnet: 160 oz. Double stacked Ferrite magnets
  • Dual 4 ohm voice coils
  • Frame: 5 spoke Die-cast aluminum basket
  • Cone: Reinforced aluminum curvilinear
  • Surround: Oversized Buytl Rubber
  • Spider: 2 Flat ultra excursion
  • Program (conservative)
  • T Yoke: Industrial Chromed Hex bolt retained,
  • Bumped and Vented
  • Double damper magnetic motor assembly
  • Cooling: Double Vented (T Yoke and Motor Side vents)
  • Voice Coils: 4 Layer Dual 4 Ohm High Temperature black Aluminum
  • 2/4/8 Ohm Operation (Parallel/Normal/Series)
  • Voice Coil Diameter: 2.6"
  • DC resistance (Re): 3.2 ohms each coil
  • Frequency Response: 20 Hz-75,000 Hz
  • Fs: 29 Hz
  • QTS: .67
  • QES: .80
  • QMS: 3.97
  • VAS: 4.6. cu. ft.
  • SD:.0491M
  • SPL:90 dB 1W/1m
  • Xmax:16mm

Product History:

Volfenhag ZX4725 thumbnail
(newest, current model)
Volfenhag ZX-4715DVX thumbnail
(previous model, replaced by Volfenhag ZX4725 (ZX-4725))

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
15"
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
1200 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
600 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Dual
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
91 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Butyl Rubber
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Minimum Ported Box Volume
This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Ported Box Volume
This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
7-7/16"
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
14-3/16"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 – 10.
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 – 10.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
Not warranted
Labor Warranty Duration
Not warranted
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
81%
4 Star
13%
3 Star
0%
2 Star
0%
1 Star
6%

Average Attribution Rating

Durability
4.3
Value
4.6
Features
4.6
Design
4.8
Usability
4.9
matt

Black Creek, WI

Overall
Durability
Value
Features
Design
Usability
Big Bang for your buck

April 13, 2006

My friend has two 15's in his Delta, there in a ported box that is around 5cu ft. For the price they are a great sounding sub. They also have a nice clean look.

6 of 7 found this helpful

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Kirk

Williamsburg, VA

Overall
Durability
Value
Features
Design
Usability
budget mastering

July 12, 2007

This subwoofer had the best value of anything I have ever used. I have one of these in my hatchback running it close to 600RMS and it impresses everyone. then they get jealous when i tell them i only spent 180 on my amp and sub. This breaks the rule of "You get what you pay for" because these are worth more. Definitely would buy again in fact am thinking of hooking another one up to the same amp.

4 of 5 found this helpful

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bryan

Bristol, FL

Overall
Durability
Value
Features
Design
Usability
Freaking awsome!!!

January 13, 2007

with this sub you can easily hit the high dbs. I've hit 121.3 with the volume at 30 when it max outs at 40 with only 1 sub!!.All in all its a good sub for low budget system

4 of 5 found this helpful

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thelma

Jasper, TN

Overall
Durability
Value
Features
Design
Usability
great sub

August 12, 2005

great sub for the money i've got a 250 rockford pushing it and it hits hard

4 of 5 found this helpful

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Joshua

Yankton, SD

Overall
Durability
Value
Features
Design
Usability
Price/Perfomance - Good Value

May 27, 2005

Very good subs for the money. A friend of mine was given two 15" Volfenhag's used in a sealed box and we ran them in my car for about a week, running off of a MTX Thunder 1501D amp, and at the end of that week the box started pulling apart. They sounded fairly clean, definately loud, got plenty of attention, and had a decent kick to them. Almost as loud as my 2 12" MTX Thunder 8000's were(which were $250 a piece when I bought them, so ~ $140 for two of these is definately a good deal). I could only imagine how much better they would have been in a better optimized box(that was built better, too).

4 of 5 found this helpful

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Jon

Mount Morris, MI

Overall
Durability
Value
Features
Design
Usability
Economically Priced

April 12, 2005

This product is an awosme deal. I bought these and hooked them up in 8 ohm as a conservative set up then hook them up to a 1000 watt rockford fosgate amp and they pounded. Definite 5 star rating

4 of 5 found this helpful

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jordan

Canada

Overall
Durability
Value
Features
Design
Usability
very poor quality

January 20, 2011

would not buy this product again they did not put out the bass of a 10" sub and they burned out on me

3 of 4 found this helpful

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Anthony

Redwood City, CA

Overall
Durability
Value
Features
Design
Usability
good BANG for your buck

August 12, 2008

I was hesitant to purchase this brand of speakers since I heard a lot of good and bad things about them. But, I ended up getting one 15 and put it in a 3 cu ft sealed box pushing it with a Volfenhag 2000watt 2 ch amp. I have it bridged and wires to 8ohms and it thumps very nicely. For $70 for the speaker alone. It sounds great for what I wanted and it looks awesome.

3 of 4 found this helpful

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Shawn

Stockbridge, MI

Overall
Durability
Value
Features
Design
Usability
good bang for the buck

October 18, 2007

I owned 4 of these 15's installed in a 96 ford probe. they were in a custom box which gave each sub just over 2 cf per sub hooked upto a 2200w audiobahn amp and they rattled my hatch like crazy. not sure what db's i was hitting. the only problem i had was the cone on a couple i had seperated so i exchanged them for new ones, then i decided to hook them up at 8 ohms instead of 4 and didn't have hardly any problems after that. i had one seperate after that so instead of sending it back i decided to glue it back together with gorilla glue and boy did that make that speaker pound harder then new or even two of my other subs. overall recommend for low cost system.

3 of 4 found this helpful

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Matt

International Fall, MN

Overall
Durability
Value
Features
Design
Usability
this sub looks sweet

October 29, 2005

i like a sub that can deliver alot of bass and for a person that cant afford spending thousands of dollars on stereo equipment i recomend this sub cause it only costs 70.00 you cant beat that

3 of 4 found this helpful

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Sherry

Monmouth, IL

Overall
Durability
Value
Features
Design
Usability
Rundle, Monmouth IL

October 26, 2005

Totally sweet buy. This sub is the best investment i have ever made. I bought two of these and are pushing them with and audiobahn 1600 watt amp and the pound. If I was you I would buy them too.

3 of 4 found this helpful

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Marguerite

Knoxville, TN

Overall
Durability
Value
Features
Design
Usability
Volfenhag

June 18, 2005

Awsome bass and great power handling.

3 of 4 found this helpful

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Alex

Lewisville, TX

Overall
Durability
Value
Features
Design
Usability
WOW

April 17, 2004

The whole reason i bought these subs was because they were cheap. I did alot of reviewing and found all good things. These subs hit very hard. I have them hooked up to a Power Acustik 1600w amp (whice i also strongly recomend) and they slam, so BUY THEM

3 of 4 found this helpful

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Cartunner50

San antonio tx

Overall
Durability
Value
Features
Design
Usability
They Hit harder than my 15" KicKer CVRs

June 22, 2009

I have 4 15" Volfenhag subwoofers and i am very impressed with them. I install Car Audio on my spare time at a local tunes store. I sell alot of CVRs but none of them hit as hard as these Volfenhags. I have them set up with a 4000 watt Treo amp. No distortion what so ever. I have them in a 2000 isuzu rodeo and i keep blowing the back wind shield out.

3 of 5 found this helpful

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CHARLES

MERIDEN, CT

Overall
Durability
Value
Features
Design
Usability
3 15 s and 4 10s all vofenhaug

March 1, 2007

i have 3 i5 inch 1200s and 4 10inch 1000s in a 1991 crx si and powered by 2 memphis mojo 2500s i hit on a average of high 150s i like these subs. every one is hooked on all these other name brands when these at about 100 dollars a piece are good yes you get what you paid for... but i have been reading some of the comments on these woofers and i believe that some of the people that have had bad times with these subs just probably do not know what they are doing i have 2 mojo 2500s amps 2 stinger 1000 dry cells if your not running these you are far behind in times stay away from the optima batteries i like stinger because their is no gel or acid in the battery a true dry cell
all my cables are 2g and down and a 160 amp alternator 2 caps and many more items make sure you cover your grounds in your car first before putting these woofers in they have treated me good
I'm sold on these things until i hear a better woofer for the money

2 of 3 found this helpful

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John

Oakland, NJ

Overall
Durability
Value
Features
Design
Usability
awesome

August 29, 2007

just put 2 of these in me blazer. THEY BUMP. great for the price and they look great too. I would tell anyone to buy these for the money.

--john--

1 of 2 found this helpful

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $37.85

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $53.99

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $64.87

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $87.63

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $18.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $74.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $8.97

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

1 Volfenhag ZX-4715DVX Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Volfenhag ZX-4715DVX Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 Volfenhag ZX-4715DVX Subwoofers

Mono Amp

4 Channel Amp

4 Volfenhag ZX-4715DVX Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

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Product Summary

Manufacturer

Model Number

ZX-4715DVX

UPC

712750800075

Weight

25.00lbs

Internal SKU

zx4715dvx

Internal Product ID

1730

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Volfenhag ZX-4715DVX