HRS E1X User manual

E1X ISOLATION BASE
A Low Noise Floor Is Fundamental

2
Introduction
Thank you for purchasing the Harmonic Resolution Systems E1X Isolation Base.
When used properly, it will give you many years of superior musical or video signal
reproduction.
The HRS E1X Isolation Base significantly reduces the negative impact of structure
borne vibration on your audio or video component performance. Many decades of
engineering experience, custom material development, and listening tests are
incorporated into the design of the HRS E1X Isolation Base. The performance of
the HRS E1X Isolation Base will enable your audio/video source and amplification
components to achieve a very high level of performance.
The HRS E1X Isolation Base is a perfect match for the HRS Damping Plates,
Nimbus, Vortex, and Helix products. While the HRS E1X Isolation Base works to
significantly reduce structure-borne noise, the HRS Damping Plates, Nimbus,
Vortex, and Helix products significantly reduce the harmful effects of air-borne
noise and structural resonance on your components.
Please read this manual completely prior to use of your HRS E1X Isolation Base
for setup and product care instructions. Proper care of your HRS E1X Isolation
Base will ensure optimum performance and an aesthetically pleasing appearance.
All HRS products are manufactured in the US by highly skilled craftsmen using
superior techniques, exotic finishes, and proprietary materials. HRS is dedicated to
producing the finest audio products in the world. To accomplish that, all products
advance through a series of intense inspection and approval protocol. All items are
inspected 100% to verify the assembly fits are up to our exacting standards. This
rigorous protocol, combined with precision design, results in a product that is a
pleasure to install, use, change, or expand at anytime. From all of us here at HRS,
we truly hope you enjoy our product.
Scan here to register for HRS
5-year limited warranty
Your order was built and inspected by the
following HRS staff
Manufacturing: ____________ _______
Inspection: ____________ _______
Packaging: ____________ _______

3
Safety Instructions
IMPORTANT WARNINGS!
Do not place any tall objects on the HRS Isolation Base. A tall object is any object
with a height that is greater than the length of the HRS Isolation Base. A tall object
is also any object that has a height greater than its own width or length. Tall objects
must not be placed on top of the HRS Isolation Base for any reason. The object
may become unstable and tip over, causing damage to the component, adjacent
objects, or injury to people.
Lifting or moving the HRS Isolation Base should always be done by means of the
outer rectangular frame. Do not lift the HRS Isolation Base by the external feet
attached to the bottom of the rectangular frame.

4
Setup Instructions
Placing components with sharp or pointed feet directly on the HRS Isolation Base
may cause nicks, scratches, or gouges in the surface. Use of a protective barrier
between any metal-like feet or sharp objects will prevent damage to the HRS
Isolation Base surface. Protection from sharp objects is recommended to prevent
scratches and maintain the original beauty of the HRS Isolation Base.
HRS E1X Isolation Bases are produced with different HRS Footer designs to
optimize the performance of specific components. The type of footer the HRS
Isolation Base was originally configured with is identified on the packaging label
on the outside of the box of each base. The footer designation is also identified by
a color-coded dot located on the back edge of the frame. HRS Isolation Bases have
a unique ability to be modified at any time to optimize performance for a different
component or different environment. If you change the feet of the HRS Isolation
Base, we recommend you also change the color-coded dot on the back of the HRS
Isolation Base so it is easy to identify for what performance setting the base is
currently configured.
The HRS G7 Bi-Directional Noise Reduction Footer does not have any load range
limit. You can place any component on an HRS E1X Isolation Base configured
with G7 Feet. An E1X Isolation Base with G7 Feet is not sensitive to component
weight or weight distribution. HRS Broadband Isolation Feet (SF2 and SF3) and
HRS Low Frequency Feet (LF2 and LF3) are made in various load ranges to
optimize performance for different component weights. When using the SF and LF
Footers, please verify that the component that will be placed on the HRS Isolation
Base is within the rated load range for SF Footer or is the specific component model
number for LF Footers.
If the SF or LF Footers of the HRS E1X Isolation Base are overloaded, the HRS
isolators will hit a protective stop and significantly reduce the product performance.
If your HRS Isolation Base has SF or LF Feet (pictured on the next page), you can
check to see if the HRS Isolation Base is overloaded by testing for compliance
between the HRS Isolation Base frame and the feet at each corner. With the
component loaded on the HRS Isolation Base, check each corner individually by
pressing down firmly on each corner. An HRS Isolation Base with SF and LF Feet
should be compliant at each corner location and not feel rigid. If there is
displacement at each corner then the HRS Isolation Base is working as designed. If
there is no compliance at one or more corners then the load range should be changed
by HRS to the proper load range. HRS can modify the HRS E1X Isolation Base
load range as many times as needed for a fraction of the original purchase price.
Overloading the HRS Isolation Base for an extended period of time may reduce its
service life and voids the warranty.

5
The HRS G7 Feet (pictured below) will not have any compliance and so they should
not react when you press down on the corner of the base. Instead, check that all four
feet are in direct intimate contact with the surface the HRS Isolation Base is resting
on by pressing down firmly at each corner and observing if the HRS Isolation Base
rocks up and down. If any rocking motion occurs, adjust the G7 Foot at the rocking
corner by turning it counter-clockwise (as viewed from below base frame) 1/8 of a
rotation at a time until it no longer rocks under pressure. Always maintain at least
three full rotations of thread engagement on each G7 Foot. Optimal performance
will be achieved when at least three G7 Footers are threaded fully into the frame
and only one is adjusted to prevent rocking. The G7 Feet are not designed to level
the base frame. Leveling of the HRS E1X Isolation Base is done by adjusting the
HRS audio stand or other supporting structure.
SF2 height: 1.300” SF3 height: 1.300”
LF2 height: 1.475” LF3 height: 1.475” G7 Height 1.350”
Bottom SF2 / LF2 Bottom SF3 / LF3 Bottom G7
Note: The heights listed above are measured from the bottom to the top of the outer
metal housing only (does not include isolators, shims, or threads).

6
A majority of source components have a center of gravity that is approximately
near the geometric center of the component. However, some amplifiers and source
components can have significant variation in weight distribution that is dependent
on the design layout of the heavier objects within the component.
The HRS G7 Feet are not sensitive to component weight or weight distribution.
You can use the HRS G7 Feet with any component weight and any weight
distribution. For SF/LF Feet, the ideal HRS Isolation Base setup is to have the
center of gravity of the component in the geometric center of the HRS Isolation
Base. This will result in even loading of the SF/LF Feet. This can be achieved by
estimating the center of gravity of your component, and placing it in the geometric
center of the HRS Isolation Base. Even loading of the SF/LF Feet can also be
achieved by moving the component until the HRS Isolation Base is level.
Top View
Component and HRS Isolation Base
If you have a component that does not allow you to locate the center of gravity near
the geometric center of the HRS Isolation Base with SF/LF Feet, you can utilize a
custom combination of HRS Isolation Base Feet to accommodate a significant
variation in isolator loading. Please consult with your authorized HRS dealer or
HRS directly if you have questions regarding proper loading of your HRS E1X
Isolation Base. Custom HRS Isolation Bases built for a specific component model
have already been set up for that specific component weight distribution. If the
component is centered on the custom HRS Isolation Base and the HRS logo is in
the right front corner then the loading of a custom base model is correct.

7
Specifications
The following specifications are based on your HRS E1X Isolation Base part
number, which is marked on the outside of the original factory box. The part
number is composed of the following information sequence:
Series - Model Number – Foot Type (Load Range) - Base Color
The load range can also be identified by the color of the sticker located on the back
of the HRS Isolation Base frame. Just cross reference the color of the sticker to the
table on the next page that corresponds to your base’s model number. The isolators
are also marked with colored dots that should match the colored sticker on the back
of the frame. Bases with custom load ranges have no colored sticker, but the box
and product tag are marked with specific custom model number information, and
each isolator is marked with a colored dot.
The recommended load range is the range of component weight that will yield
optimal performance. If you have less than recommended load you will still likely
obtain very good results based on HRS technology. Placing more than the
maximum recommended load may result in a significant decrease in HRS Isolation
Base performance, because there is a safety stop mechanism that will engage to
prevent damage to the HRS Isolation Base. When the safety mechanism is engaged,
the performance is decreased significantly until the HRS Isolation Base is adjusted
to the proper rated load range.

8
Standard Model HRS E1X Isolation Base Sizes, Physical Characteristics, and
Load Ranges (For custom model information please contact HRS.)
Model:
E1X-1419
Dimensions:
19 x 14 x 3 inches
(48.3 x 35.6 x 7.6 cm)
Base Weight:
19 lb
8.6 kg
Sticker / Dot Color
Load Range
White (WT)
0 - 19 lb
(0 - 8.8 kg)
Yellow (YL)
20 - 41 lb
(8.9 - 18.8 kg)
Red (RD)
42 - 72 lb
(18.9 - 32.8 kg)
Green (GN)
73 - 112 lb
(32.9 - 51.0 kg)
Blue (BL)
113 - 187 lb
(51.1 - 84.8 kg)
Purple (PR)
Not load-dependent (G7 Feet)
Model:
E1X-1719
Dimensions:
19 x 17 x 3 inches
(48.3 x 43.2 x 7.6 cm)
Base Weight:
23 lb
10.4 kg
Sticker / Dot Color
Load Range
White (WT)
0 - 17 lb
(0 - 7.9kg)
Yellow (YL)
18 - 38 lb
(8.0 - 17.4 kg)
Red (RD)
39 - 63 lb
(17.5 - 28.7 kg)
Green (GN)
64 - 103 lb
(28.8 - 46.9 kg)
Blue (BL)
104 - 183 lb
(47.0 - 83.0 kg)
Purple (PR)
Not load-dependent (G7 Feet)
Model:
E1X-1921
Dimensions:
21 x 19 x 3 inches
(53.3 x 48.3 x 7.6 cm)
Base Weight:
29 lb
13.2 kg
Sticker / Dot Color
Load Range
White (WT)
0 - 12 lb
(0 – 5.6 kg)
Yellow (YL)
13 - 33 lb
(5.7 - 15.1 kg)
Red (RD)
34 - 58 lb
(15.2 - 26.5 kg)
Green (GN)
59 - 98 lb
(26.6 - 44.6 kg)
Blue (BL)
99 - 178 lb
(44.7 - 80.7 kg)
Purple (PR)
Not load-dependent (G7 Feet)

9
Standard Model HRS E1X Isolation Base Sizes, Physical Characteristics, and
Load Ranges (For custom model information please contact HRS.)
Model:
E1X-1923
Dimensions:
23 x 19 x 3 inches
(58.4 x 48.3 x 7.6 cm)
Base Weight:
31 lb
14.5 kg
Sticker / Dot Color
Load Range
Yellow (YL)
0 - 31 lb
(0 - 14.2 kg)
Red (RD)
32 - 56 lb
(14.3 - 25.6 kg)
Green (GN)
57 - 96 lb
(25.7 - 43.7 kg)
Blue (BL)
97 - 176 lb
(43.8 - 80.0 kg)
Purple (PR)
Not load-dependent (G7 Feet)
Model:
E1X-2123
Dimensions:
23 x 21 x 3 inches
(58.4 x 53.3 x 7.6 cm)
Base Weight:
35 lb
15.9 kg
Sticker / Dot Color
Load Range
Yellow (YL)
0 - 29 lb
(0 - 13.3 kg)
Red (RD)
30 - 54 lb
(13.4 - 24.7 kg)
Green (GN)
55 - 94 lb
(24.8 - 42.8 kg)
Blue (BL)
95 - 174 lb
(42.9 - 78.9 kg)
Purple (PR)
Not load-dependent (G7 Feet)

10
Care and Maintenance
The HRS E1X Isolation Base is a very low maintenance item that will provide many
years of trouble-free performance by applying these basic care instructions.
Clean the surfaces of the HRS E1X Isolation Base using a lint-free soft (non-
abrasive) cloth. If needed, use a cloth lightly damped with water. Do not use any
solvents, and do not use any abrasive cleaners or abrasive materials on any part of
the HRS Isolation Base.
Do not spray, soak, or submerge the HRS Isolation Base in water or any cleaning
solutions. The HRS Isolation Base is an assembly of many different parts and
materials. Submerging the HRS Isolation Base will cause permanent damage to the
assembly.
Do not wash the interior flex element of the HRS Isolation Base Feet, even if you
see a coating or white substance on the surface of the flex element. This coating is
intentional, and is put in the flex element to protect the custom isolation material
from the environment.
Warnings!
Do not place objects with sharp or pointed feet directly on the HRS Isolation Base.
Do not immerse in water or spray with water or any other liquids.
Do not use abrasive cleaners or abrasive sponges.
Do not wash the HRS Isolation Base or HRS Isolation Base Feet with any solvent-
based cleaning solutions.
Do not wash the interior flex element of the HRS Isolation Base Feet, even if you
see a coating or white substance on the surface of the flex element.