Hartke HyDrive HD Series User manual

Owner's Manual
HyDrive HD Series Bass Cabinets

Hartke
©2017, v1
278-B Duffy Ave
Hicksville, New York 117801
Phone: [phone]
www.hartke.com
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3
HyDrive HD Series Cabinets
Thank you for purchasing a HyDrive HD Bass Enclosure from Hartke! We know you
don’t like reading owners manuals, but you’ve just purchased one of the finest bass
speaker systems around, and we want to tell you about it. So, before you plug in and
start playing, we’d like to suggest you take just a few moments to scan these pages.
The HyDrive HD series is the second generation of bass speaker enclosures featuring
Hartke’s patented HyDrive hybrid cone bass transducers. HyDrive speakers are
constructed using an outside curved Kevlar®-loaded paper cone producing warm
low frequencies and an inside anodized aluminum cone that produces smooth mids
and high-end extension. This new series reproduces even more of the fundamental
frequency, providing a clean sound with a big low end, allowing you to sculpt a wide
range of tones for any musical style.
With proper care and operation, your HyDrive cabinet will operate trouble free for many
years. We recommend you record your serial number in the space provided below for
future reference.
Serial number: ____________________________________________
Date of purchase: __________________________________________
NOTE: Should your Hartke Cabinet ever require servicing, a Return Authorization (RA)
number is necessary. Without this number, the unit will not be accepted. If purchased
in the United States, please call Hartke at 1-800-372-6766 for a Return Authorization
number prior to shipping. Please retain the original packing materials and, if possible,
return the unit in its original carton and packing materials. If purchased outside the
United States, please contact your local distributor for warranty information.
Introduction

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The HyDrive HD Cabinets feature two
1/4” and two twist-and-lock connectors
wired in parallel. Each connector can
be used as an input from an amplifier
or as a pass through to an additional
speaker cabinet.
When connecting an HD series
cabinet to another extension cabinet
be sure to check the manufacturer’s
recommended impedance for the
amplifier to avoid any damage. Read
the section “About Impedance” for
more information on connecting
multiple speakers together.
NOTE: Never connect more than one amplifier to a HyDrive HD series enclosure. This
will damage the speaker cabinet and void the warranty.
NOTE: Use only unshielded speaker wire with a gauge of 12 – 18 AWG. Do not use
shielded instrument cables when connecting an amplifier to a speaker cabinet or when
connecting an extension cabinet.
Connecting the HD Cabinet
Using The High Frequency Level Control
The HyDrive HD cabinet has a control used to adjust the level of the high-frequency
driver. The switch has three positions, ON, -6dB and OFF. When the switch is set to
OFF, the high frequency driver is completely out of the circuit and off. Setting the
switch to –6dB, will attenuate the driver by 6dB. When set to ON, you get the full
level of the high-frequency driver.
Not Connected
1- 1+
2+ 2-
Use a standard 2-conductor cable, wired to pins 1+ and 1-, when connecting an
amplifier to a Hydrive HD cabinet

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HyDrive HD Series Cabinets
Basically, impedance is the amount of current that will flow through a speaker at a certain
voltage. It is measured in Ohms (Ω). The actual impedance of a speaker is not constant
across all frequencies. So, for convenience we use the term “nominal impedance”,
which refers to the impedance that a speaker presents to an amplifier at a reference
frequency.
A speaker typically has an impedance rating of 4Ω, 8Ω, or 16Ω. Generally, the lower
the impedance of a speaker, the more power will be developed by the connected
amplifier. For example, a 4Ω speaker will extract more power from your amplifier than
an 8Ω speaker. If you connect a speaker with an impedance lower than the amplifier’s
output rating, the amplifier can overheat and damage the power output section. It is
important to learn how to connect multiple speaker cabinets safely without damaging
the speakers or the amplifier in this way.
Here is a simple rule of impedance: When two speakers with the same impedance are
wired in parallel, the total system impedance is cut in half, and when two speakers with
the same impedance are wired in series, the total impedance is the sum of the speakers
individual impedance.
Hartke HyDrive HD speaker cabinet input jacks are parallel connections. The formula
to calculate the total impedance of a parallel speaker system is:
1/Rt = 1/R1 + 1/R2 + 1/R3 + … 1/Rn
(R is the rated impedance of a speaker cabinet)
If all speakers have the same impedance, the total impedance will be equal to the
impedance of a single speaker divided by the total number of speakers. For example, if
you have two 4Ω speakers connected in parallel, the total impedance is 4 divided by 2,
or 2Ω. You should be careful when connecting speakers in parallel to an amplifier. The
impedance can quickly fall below safe levels. This is especially true when connecting
speakers in parallel to a bridged amplifier.
Typical Parallel Speaker Impedance Calculations:
16Ω + 16Ω = 8Ω
8Ω + 8Ω = 4Ω
4Ω + 4Ω = 2Ω
4Ω + 8Ω = 2.7Ω
8Ω + 16Ω + 16Ω = 4Ω
About Impedance

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The HyDrive HD112 has an innovative dual voice coil design that allows the cabinet
to operate at either 4 or 8 ohms impedance. The cabinet has a impedance selector
switch on the rear jack plate.
If you are using a single speaker
cabinet, and the amplifier has a
minimum impedance of 4 ohms,
set the HyDrive HD112 impedance
selector switch to 4-ohms to get the
maximum power from the amp.
If you are using two HyDrive HD112
together in parallel, for a total
impedance of 4 ohms, or adding a
HyDrive HD112 to your current rig,
set the impedance selector switch to
8 ohms.
NOTE: Be sure to check the manufacturer’s recommended minimum safe impedance
rating for your amplifier before setting the impedance selector switch to avoid any
damage to your amplifier.
HD112 - Impedance Selection

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HyDrive HD Series Cabinets
Specifications
HD410
Description 4 x 10” Bass Speaker Cabinet
Cabinet Type Two chamber, sealed enclosure
Cabinet Impedance 8 Ohms
LF Drivers 250 watt, 10”, paper and aluminum hybrid cone
HF Driver 1” High Frequency Driver
HF level control 3-position switch (0,-6dB, Off)
Power Handling 1000 Watts RMS
Frequency Response 50Hz - 17kHz -3dB
-10dB LF Response 30Hz
Dimensions 24” x 24” x 15”
618mm x 618mm x 381mm
Weight 63lb
28.6kg
HD115
Description 1 x 15” Bass Speaker Cabinet
Cabinet Type Vented bass enclosure
Cabinet Impedance 8 Ohms
LF Drivers 500 watt, 15”, paper and aluminum hybrid cone
HF Driver 1” High Frequency Driver
HF level control 3-position switch (0,-6dB, Off)
Power Handling 500 Watts RMS
Frequency Response 45Hz - 17kHz -3dB
-10dB LF Response 20Hz
Dimensions 24” x 24” x 15”
618mm x 618mm x 381mm
Weight 51.6lb
23.4kg

Specifications
HD210
Description 2 x 10” Bass Speaker Cabinet
Cabinet Type Sealed enclosure
Cabinet Impedance 8 Ohms
LF Drivers 250 watt, 10”, paper and aluminum hybrid cone
HF Driver 1” High Frequency Driver
HF level control 3-position switch (0,-6dB, Off)
Power Handling 500 Watts RMS
Frequency Response 50Hz - 17kHz -3dB
-10dB LF Response 35Hz
Dimensions 14.5” x 24” x 15”
371mm x 612mm x 383mm
Weight 36.6lb
16.6kg
HD112
Description 1 x 12” Bass Speaker Cabinet
Cabinet Type Vented bass enclosure
Cabinet Impedance 4 or 8 Ohms selectable
LF Drivers 300 watt, 12”, paper and aluminum hybrid cone HF
Driver 1” High Frequency Driver
HF level control 3-position switch (0,-6dB, Off)
Power Handling 300 Watts RMS
Frequency Response 35Hz - 17kHz -3dB
-10dB LF Response 25Hz
Dimensions 19” x 15” x 16”
483mm x 381mm 406mm
Weight 34lb
15.4kg
At Hartke, we are continually improving our products, therefore specifications and
images are subject to change without notice.
278B Duffy Ave
Hicksville, New York 117801
Phone: [phone]
www.hartke.com