Next Level CI-HV8 User manual

HIGH VELOCITY SUBWOOFER
CI-HV8, HV10 / HV12 / HV15 / HV15P / HV18P
USER MANUAL
CONTENTS CI-HV8 / HV10 / HV12 / HV15 / HV15P/ HV18P:
•High Velocity Subwoofer
•Power Cord (Powered Versions)
•(4) Rubber Feet
•User Manual

Thank you for purchasing one of the most cutting-edge high-velocity
subwoofers on the market today. You are now ready to take your
listening experience to the Next Level!
CI-HV10
CI-HV12
SPECS DESCRIPTION SPECS
SYSTEM DESIGN
Subwoofer, Vented, Bandpass
DRIVER
8" Aluminum Cone, 40 Oz Magnet, 2" VC
AMPLFIER
300 W RMS
FREQUENCY RESPONSE
35 Hz
- 100 Hz
DIMENSIONS
17
”d x 14"w x 20.5" h
WEIGHT
44 lbs
Standard FINISH
Black Formica / Flat Black / Satin Black
SPECS DESCRIPTION SPECS
SYSTEM DESIGN
Subwoofer, Vented, Bandpass
DRIVER
12" Aluminum Cone, 130 Oz Magnet, 3" VC
AMPLFIER
500 W RMS
FREQUENCY RESPONSE
19 Hz
- 100 Hz
DIMENSIONS
18.6”
d x 17"w x 24" h
WEIGHT
90 lbs
Standard FINISH
Black Formica / Flat Black / Satin Black
CI-HV8
SPECS DESCRIPTION SPECS
SYSTEM DESIGN
Subwoofer, Vented, Bandpass
DRIVER
8" Aluminum Cone, 40 Oz Magnet, 2" VC
AMPLFIER
300 W RMS
FREQUENCY RESPONSE
35 Hz
- 100 Hz
DIMENSIONS
17” h x 10.25” w x 14.5” d
WEIGHT
44 lbs
Standard FINISH
Black Formica / Flat Black / Satin Black

CI-HV15 / HV15P
CI-HV18P
SPECS DESCRIPTION SPECS
SYSTEM DESIGN
Subwoofer, Dual Tuned Ports, Bandpass
DRIVER
15" Aluminum Cone, 140 Oz Magnet, 3" VC
AMPLFIER
500 W RMS / 50
–2000 W RMS @ 6 ohms
FREQUENCY RESPONSE
18 Hz
- 100 Hz / 121 dB @ 3M
DIMENSIONS
21”
d x 18"w x 26" h
WEIGHT
120 lbs
Standard FINISH
Black Formica / Flat Black / Duratex Pro Finish
SPECS DESCRIPTION SPECS
SYSTEM DESIGN
Subwoofer, Dual Tuned Ports, Bandpass
DRIVER
18" Proprietary Cast Frame, 120 Oz Magnet, 4" VC
AMPLFIER
50
–2000 W RMS @ 6 ohms
FREQUENCY RESPONSE
17 Hz
- 120 Hz / 120 dB @ 6M
DIMENSIONS
21.5”
d x 20.5"w x 29" h
WEIGHT
125 lbs
Standard FINISH
Black Formica / Flat Black / Duratex Pro Finish

SAFETY PRECAUTIONS
CAUTION! To reduce the risk of electric shock and fire, do not remove the inner cover below the top plate
or the back plate of this device. There are no user serviceable parts inside. Please refer all servicing to
licensed service technicians. CAUTION! The international symbol of a lightning bolt inside a triangle is
intended to alert the user to uninsulated “dangerous voltage” within the device’s enclosure. The international
symbol of an exclamation point inside a triangle is intended to alert the user to the presence of important
operating, maintenance and servicing information in the manual accompanying the device. CAUTION! To
prevent electrical shock, match wide blade of plug to wide slot, fully insert. CAUTION! To reduce the risk
of electrical shock, do not expose this equipment to rain, water or moisture.
1) Read Instructions—All safety and operating instructions should be read before operating the device.
2) Retain Instructions—The safety and operating instructions should be retained for future reference.
3) Heed Warnings—All warnings on the device and in the operating instructions should be adhered to.
4) Follow Instructions—All operating and safety instructions should be followed.
5) Water & Moisture—The device should never be used in, on or near water for risk of fatal shock.
6) Stands—The device is not intended to be used on a stand.
7) Ventilation—The device should always be located in such a way that it maintains proper ventilation. It
should never be placed in a built-in installation or anywhere that may impede the flow of air around the
product.
8) Heat—Never locate the device near heat sources such as radiators, floor registers, stoves or other heat-
generating devices.
09) Power Supply—The device should only be connected to a power supply of the type described in the
operating instructions or as marked on the device.
10) Power Cord Protection—Power cables should be routed so they are not likely to be stepped on or
crushed by items placed on them or against them. Special attention should be paid to areas where the plug
enters a socket or fused strip and where the cord exits the device.
11) Cleaning—The device should be cleaned in accordance with manufacturer’s instructions.
12) Periods Of Non-Use—The device should be unplugged when not being used for extended periods.
13) Dangerous Entry—Care should be taken that no foreign objects or liquids fall or are spilled inside the
device.
14) Damage Requiring Service—The device should be serviced by licensed technicians when: • The plug or
power supply cord has been damaged. • Objects have fallen or liquid spilled inside of the device. • The
device has been exposed to moisture. • The device does not appear to be operating properly or exhibits a
marked change in performance. • The device has been dropped or the cabinet becomes damaged.
15) Service—The device should always be serviced by licensed technicians. Only replacement parts
specified by the manufacturer should be used. The use of unauthorized substitutions may result in fire,
shock, or other hazards.

Please follow the guidelines below to ensure best performance:
AMPLIFIED VERSIONS (CI-HV8 / HV10 /HV12 / HV15 models)
•Level Control (Top Knob):
•CI-HV8 / HV10 / HV12 Generally 10 – 11 o’clock (12 Max)
•CI-HV15 Generally 1 – 2 o’clock (3 Max)
•Frequency or Low Pass Control: 9 – 11 o’clock
•Phase: 0 -180 deg –adjust for max output
ABC
E
D
•A: Volume –Controls subwoofer level. This amplifier has a very high gain.
•CI-HV8 / HV10 / HV12 Set the level @ 10 - 11 o’clock or lower. Using at
settings greater than 12 o’clock could cause failure
•CI-HV15 Set the level @ 1 - 2 o’clock or lower. Using at settings greater
than 3 o’clock could cause failure
•B: Low Pass –Controls the amount of mid-bass. Normal setting is about half-way up
•C: Phase – Variable from “0” to “180”. Slowly turn until you hear optimal bass
response
•D: Phono Inputs (“Line-in”) – Feed signal to the subwoofer from the receiver
connected directly to the “Sub Out” on the receiver
•E: Speaker Level Inputs

ADDITIONAL INFORMATION
•Wall Outlet: In the US 110V –20 amp service preferred as 12 gauge wire, used for 20
amp service, provides a better draw supply to the amplifier. There is a slight
improvement in tightness and bass speed going from 16 amp to 20 amp
•Rubber feet are included to provide isolation between bottom of sub and floor. This
isolation is necessary for clean bass
•Subwoofer response is complex and room interactive. In addition there is a break in
period of about 2 weeks to attain best performance. We suggest moving the sub to a
variety of different positions within the listening area
ROOM PLACEMENT
One of these placements may be best for your room/seating position. This can only be done
empirically and takes quite a bit of time, trial and error. Listening, over a period of months,
generally yields best sub position.
•Option 1 - Midway between front left and right main speakers. This position is generally
preferred for its transitional coherence but is not “carved in stone”
•Option 2 –Midway along sidewall relative to the listening position
•Option 3 –Behind the listening position near a back wall corner. Note: Placing the sub in
a corner will increase output between 3 - 6 db. Ironically this corner option is generally
least desirable due to loss of bass detail
NON-AMPLIFIED VERSIONS (CI-HV15P/ CI-HV18P)
•Connect the positive speaker wire and negative speaker wire from the amplifier directly
to the push terminals on the back of the subwoofer
•Wire the positive speaker wire to the positive terminal and negative speaker wire to the
negative terminal located on the back of the subwoofer
•Strictly adhere to the subwoofers power handling capabilities

LIMITED WARRANTY
NON-COMMERCIAL SUBWOOFERS
5-Years for Drivers for any defects or performance issues realized during the products normal
use, 2-Years for the amplifier, and 90 days for defects in manufacture or workmanship covering
the exterior fit and finish for peeling and cracks.
JS Speaker Technology, LLC., dba Next Level Acoustics (herein “Next Level”), warrants to the
original retail purchaser only that this Next Level Subwoofer product (the “Product”) will be free from
defects in material and workmanship for a period of five (5) years covering the drivers and cabinets,
two (2) years for the electronic components, and ninety (90) days covering the exterior fit and finish
for peeling and cracks from the date of the original purchase from a Next Level Authorized Dealer. If
the Product is defective in material or workmanship, Next Level or its Authorized Dealer will, at its
option, repair or replace the warranted product at no additional charge, except as set forth below. All
replaced parts and Product(s) become the property of Next Level. Product that is repaired or replaced
under this warranty will be returned to you, within a reasonable time, freight collect. This warranty is
non-transferrable and is automatically void if the original purchaser sells or otherwise transfers the
Product to any other party. This Warranty does not include service or parts to repair damage caused by
accident, misuse, abuse, negligence, inadequate packing or shipping procedures, commercial use,
voltage in excess of the rated maximum of the unit, cosmetic appearance of cabinetry not directly
attributable to defects in material or workmanship. This warranty does not cover the elimination of
externally generated static or noise, or the correction of antenna problems or weak reception. This
warranty does not cover labor costs or damage to the Product caused by installation or removal of the
Product. Next Level Technology makes no warranty with respect to its products purchased from
dealers or outlets other than Next Level Authorized Dealer. The warranty is automatically void if: 1)
The product has been damaged, altered in any way, mishandled during transportation, or tampered
with. 2) The product is damaged due to accident, fire, flood, unreasonable use, misuse, abuse, customer
applied cleaners, failure to observe manufacturers warnings, neglect or related events. 3) Repair or
modification of the Product has not been made or authorized by Next Level Technology. 4) The
product has been improperly installed or used. Product must be returned (insured and prepaid),
together with the original dated proof of purchase to the Authorized Dealer from whom the Product
was purchased, or to the nearest Next Level factory service center. Product must be shipped in the
original shipping container or its equivalent. Next Level is not responsible or liable for loss or damage
to Product in transit. This limited warranty is the only express warranty that applies to your product.
Next Level neither assumes nor authorizes any person or entity to assume for it any other obligation or
liability in connection with your product or this warranty. All other warranties, including but not
limited to express, implied, warranty of merchantability or fitness for a particular purpose, are
expressly excluded and disclaimed to the maximum extent allowed by law. All implied warranties on
product are limited to the duration of this expressed warranty. Next Level has no liability for acts of
third parties. Next Level’s liability, whether based on contract, tort, strict liability, or any other theory,
shall not exceed the purchase price of the product for which a claim has been made. Under no
circumstance will Next Level bear any liability for incidental, consequential or special damages. The
consumer agrees and consents that all disputes between the consumer and Next Level shall be resolved
in accordance with Connecticut laws in Hartford County, Connecticut. Next Level reserves the right to
modify this warranty statement at any time. Some states do not allow the exclusion or limitation of
consequential or incidental damages, or implied warranties, so the above limitations may not apply to
you. This warranty gives you specific legal rights, and you may also have other rights which vary from
state to state

[phone]
www.nextlevelacoustics.com