Owner’s Manual
Contents
page
1.0
2.0
3.0
4.0
5.0
6.0
7.0
Description
Warnings! (please read carefully)
Inputs and Controls
Startup
Protection
Signal Flow Diagram
Positioning
7.1
7.2
8.0
9.0
Maintenance
MEME™
9.1
9.2
9.3
10.0
11.0
11.1
12.0
13.0
14.0
14.1
14.2
14.3
14.4
15.0
Widening the Stereo Field
Cooling
MEME Voices
MEME™ Voicing Frequency Responses
MEME™ Voice Selector Connection
Dual-Force™ Technology
Frequency Response
Polar Frequency Response
Specifications
Drawings
Limited Warranty
Warranty Conditions
Obtaining Warranty Service
Post Warranty Repair
Warranty Exclusions
Product Registration
01
02
03
04
04
05
06
07
08
08
09
09
10
10
11
12
13
14
15
16
16
16
17
17
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1.0 Description
The Footprint01 is a 3-way active system with 4 drive units housed in sealed enclosures spanning 36Hz to 45kHz
with low distortion, wide dynamic range and ultra-fast transient response. The ring radiator tweeter is
exceptionally detailed and produces very wide dispersion beyond the highest audible frequencies. The 4”
midrange is housed in a sealed enclosure for fast transient response. Its ultra-stiff and lightweight aluminum
cone moves as a perfect piston well beyond its intended frequency range. The 8″ side firing woofers are
housed in a sealed enclosure for fast transient response and feature Barefoot’s renowned Dual-Force™
vibration cancelation technology. The net result is incredible transparency and detail across the entire audio
spectrum.
Barefoot’s innovative Multi Emphasis Monitor Emulation™ technology, or MEME™ (“meam”) for
short, enables the Footprint01 to emulate the frequency, phase and transient responses, dynamic
compression and overall translation characteristics of other classic studio monitors.
1
2.0
The Mains power voltage must never exceed 250 VAC. Connecting the power cord to AC power line
voltages over 250 VAC will damage the amplifier and may cause the risk of fire. Such damage is NOT
covered under warranty.
Rear panel Mains power input layout.
Please read and follow the safety information below:
•
Do not remove the rear amplifier panel. There is a risk of electric shock. No user serviceable parts
are inside. Please refer service issues to a qualified technician.
•
Do not operate this device with an ungrounded mains power cable or a mains connection that is
ungrounded. This may result in personal injury.
•
Do not place open flames such as lighted candles on or near this device .
•
Do not expose this device to water, rain or high humidity. Do not place objects filled with liquids,
such as vases, on or near this device.
•
This speaker requires adequate airflow to maintain proper cooling. Do not obstruct airflow
around the speaker.
•
Do not operate this device in ambient temperatures above 30°C (85°F). Over-temperature may
cause device failure.
Caution! This speaker is capable of producing sound pressure levels in excess of 85dB which may
cause permanent hearing damage. Always verify that input signal levels are attenuated before
powering on the speaker.
2
3.0 Inputs and Controls
1. [INPUT] XLR connector is designed to receive analog balanced line level audio signals from sources
such as preamplifiers, sound cards, monitor controllers and mixing consoles. Pin 1 is tied to
chassis ground. Pins 2 & 3 are fully floating differential inputs. Pin 3 must be referenced to
ground for single ended input signals. The analog signal is converted to 24bit/192kHz digital audio
via a precision, ultra-high-fidelity analog to digital converter section inside the Footprint01.
2. [LEVEL] Eight position rotary switch adjusts the loudness in precise increments ( +3dB, 0, -1, -2, -3,
-5, -7 and -9dB. ) The 0dB setting corresponds to a sensitivity of 90dB at 1 meter distance using a
-15dBv input signal.
3. [MEME IN] 3.5mm stereo phone jack for connection from MEME™ Selector Switch. See Section 9
for MEME™ settings and connection details. The default setting with no switch connected is Flat.
4. [MEME THRU] 3.5mm stereo phone jack for daisy chain connection to MEME IN of another
Barefoot monitor. See Section 9 for MEME™ settings and connection details.
5. [USB] The universal serial bus connector is for factory adjustments and calibrations. This
connector is NOT an audio input.
3
4.0 Startup
1. Plug in the grounded mains power cable (see warnings on previous page for details) .
2. Plug in an analog balanced audio signals from a source such as a preamplifier, sound card, monitor
controller or mixing console to INPUT XLR connector. Ensure that the audio signal is fully attenuated.
3. Power on the speaker with the rocker switch located on the rear panel above the mains connector. The
LED indicator on the front of the speaker will illuminate Red for a couple of seconds and then turn Aqua.
4. Turn up the audio signal and enjoy!
5.0 Protection
Limiters
Peak Limiter
The Low and High frequency channels have individual Peak Limiters designed to protect each driver
from high amplitude, short duration audio input signal spikes that might cause damage due to over
excursion of the voice coil. These limiters are implemented digitally within the DSP in such a manner
that they have zero effect on the audio signal below their thresholds. The front LED indicator light will
flash RED when a Peak Limiter on any of the driver channels is triggered. The duration of such events
is only a fraction of a second. Therefore, the LED flash may appear pink or orange as the eye naturally
blends the normally aqua-blue color of the LED with the red.
RMS Limiter
The Low and High frequency channels have individual RMS Limiters designed to protect each driver
from long duration, high amplitude audio input signals that might cause thermal damage due to the
voice coil. These limiters are implemented digitally within the DSP in such a manner that they have
zero effect on the audio signal below their thresholds. The front LED indicator light will flash RED
when a RMS Limiter on any of the driver channels is triggered.
Caution: Signals large enough to trigger any of the limiters can generate very high sound pressure levels that may result in permanent hearing damage.
Over Current
In the event of a large audio input signal that might damage the amplifiers or power supply due to current overload, the power supply is designed to enter into Over Current protect mode. This state typically results from a large, broadband input signal burst that flat lines the limiters on all four channels
simultaneously. While the fault persists the amplifier power rails shut down, the speaker goes quiet,
and the front panel LED turns red. Once the audio input signal is turned down the speaker should
reboot within a few seconds. If the speaker fails to reboot or the LED light goes out completely, disconnect the audio input cable and power cycle the speaker. Verify the signal level is attenuated before reconnecting audio input cable.
Caution: Signals that cause Over Current protection to trigger can generate very high sound pressure
levels that may result in permanent hearing damage.
4
INPUT
24bit/192kHz
ADC
MEME
IN
LEVEL
Input
Level
MEME™ Voice Selector Switch
6.0 Signal Flow Diagram
Crossover
and
MEME™
5
Limiters
MEME
THRU
MEME
IN
DACs
24bit/192k
Hz
Amplifiers
Midrange
Tweeter
Woofers
Passive
Crossover
Clip LED
7.0 Positioning
The acoustic center of the Footprint01 is located at the LED indicator just above the tweeter. The Footprint01
is designed to work equally well as a nearfield or mid-field monitor. The minimum recommended listening
distance is 3 .0 feet (91 cm). This provides enough distance so the sound waves from the individual drivers can
coalesce and the speaker sounds like a single source. While speaker positioning can often be dependent on the
nature of the room, a good starting point is to create an equilateral triangle between the two speakers and the
listening position. The speakers should be angled inward so the tweeter axes aim towards the listener’s ears,
crossing a few inches behind the head.
A “typical” placement scenario might have the speakers positioned 1.5 feet (46 cm) from the front wall, the
LEDs at ear level and the speakers and listening position forming an equilateral triangle with 4.0 feet (120 cm)
sides. However, every room has its unique characteristics. Therefore, the optimal listening distances, speaker
height and distances from walls are matters for experimentation. The Footprint01 is well equipped to work at
a variety of listening distances.
Example: Preferred stereo arrangement.
6
7.1 Widening the Stereo Field
We generally recommend angling the speaker axes in towards the listening position to create an
equilateral triangle as described above. This yields the most accurate high frequency response and the
sharpest stereo image at the center listening position. In some cases, however, the listener might
change positions frequently. Or there might be multiple listeners. In such situations it may be
desirable to have a wider and less focused stereo field which provides better coverage over a range of
listening positions. This can be achieved by aiming the speaker axes more forward such that the axes
cross further behind the center listening position. The figure below illustrates the general principle
and is not meant to be an exact measure of speaker angles or optimal listening positions.
Since the Footprint01 has such wide off-axis dispersion, the horizonal angle relative to the listener can
be changed by up to 10 degrees with less than 1 dB variance in the frequency response across the
audible spectrum. Angling the speakers forward in this manner will somewhat defocus the center
stereo image while providing generally better imaging over a range of listening positions. For some
users this may be an acceptable compromise.
7
7.2 Cooling
While the amplifier modules that drive the Footprint01 are very efficient, the speaker still generates a
significant amount of heat that must be dissipated. This heat is transmitted to the air via convection from the
rear amplifier plate. In order to ensure proper airflow, a minimum of 2.0 inches (51 mm) clearance should be
maintained between the speaker and any large obstructions like walls. An ambient room temperature below
30°C (85°F) should be maintained. Over-temperature may cause speaker to overheat and shut down.
8.0 Maintenance
Exterior surfaces of this product may be cleaned using a non-abrasive lint-free cloth lightly damped
with water. Disconnect the mains power cable when cleaning to avoid risk of electric shock. Do not use
alcohol-based cleaners.
Driver active surfaces such as diaphragms and surrounds may be cleaned using dry soft bristle brushes.
Driver diaphragms are very delicate and easily damaged. So, proceed with great care. Clean new
sable artist brushes or cosmetic brushes work well for this task. Gently brush dust away from the
surface starting at the center of the driver diaphragm and moving radially outward. Avoid applying
inward pressure to the driver diaphragm.
Repairs, maintenance, or other servicing of this product when its interior compartment is exposed
should only be performed under specific advice from Barefoot Sound by a qualified technician or by
the Barefoot Service Center. There are no user-serviceable parts inside this product.
8
8.1 Technical Support and Service
Your Barefoot authorized dealer/distributor is usually the best resource for technical support regarding your specific application. You can also contact Barefoot Sound directly:
info@barefootsound.com
1-503-894-8602 ( Monday through Friday 7:00 am to 4:30 pm PST )
To obtain repair service please refer to Section 14.2 in this manual.
9.0 MEME™ (Multi Emphasis Monitor Emulation)
Barefoot MEME (pronounced “meam” like “team”) technology allows you to box up your secondary reference
monitors for good. Despite the numerous advantages of high-resolution monitors like the Footprint01, many
engineers still rely on their NS10s and mix cubes as secondary references. These speakers have long traditions
and people find them familiar and useful for focusing in on certain aspects of their mix. However, it's also a
fact that crowding your console with those extra boxes degrades the sound field of the primary reference
monitors. Not to mention, these speakers are no longer manufactured, need amplifiers, require cable runs,
and consume more studio space. MEME offers an elegant solution by emulating the sound and translation
characteristics of those other classic monitors.
9.1 MEME Voices:
Flat
- Optimal setting for accuracy, transparency and outstanding translation. Setting has a flat
Hi-Fi
- While it does not emulate any one speaker in particular, this setting is indicative of “hi-fi” in
OldScl
Cube
frequency response and extremely fast transient response. This is the default voice when
the MEME Selector Switch is not connected to the speaker.
the colloquial sense of the term. The midrange is a bit scooped and highs are a little
accentuated. The bass response is altered to have less damping, yielding a hybrid character
somewhere between the fast, tight, articulate sound of a sealed cabinet and the slower,
fatter sound of a ported speaker. The result is a sweeter more forgiving sonic character.
- This setting emulates the frequency, phase and transient response of the NS10M.
- This setting emulates the frequency, phase and transient response of classic mix cubes.
9
9.2 MEME™ Voicing Frequency Responses:
dB SPL at 1 meter, -15 dBV input (Input level attenuator = 0db)
9.3 MEME™ Voice Selector Connection:
The MEME™ Voice Selector switch box is
connected to the MEME IN jack of the
speaker via any standard 3.5 mm stereo
phone cable. The switchbox is passive and
requires no batteries. Two or more
speakers can be connected to the switch
box by daisy chaining cables from the MEME
OUT of one speaker to the MEME IN of the
next speaker. The Footprint01 MEME IN
and MEME OUT jacks are opto-isolated to
prevent ground loops between devices.
Barefoot MicroMain Gen2 series
monitors with MEME™ can also be
connected to the MEME OUT of the
Footprint01.
Example: 5 channel MEME™ Voice control layout.
10
10.0 Dual-Force™ Technology
Cabinet vibrations are a significant source of distortion and coloration in most loudspeakers. The primary
mechanism that generates cabinet vibrations is simple Newtonian action and reaction. As the driver motor
(magnet and voice coil) forces the cone to move back and forth in order to generate sound, the cone exerts an
equal and opposite force on the motor. This force is transmitted through the driver frame to the cabinet,
vibrating the cabinet walls and coloring the sound emitted by the cone. This effect is most especially prevalent in
the low frequency drivers where the cone motion is greatest.
While, the Footprint01 is built with a massive and well braced cabinet, we also tackle the problem at its source by
eliminating vibrations before they even begin. This is achieved through our innovative force cancellation design.
The low frequency drivers are mounted on opposing sides of the cabinet and their motors are locked together.
As the cones are driven in and out in opposite directions the forces exerted on the motors cancel one another.
The vibrations never make it to the cabinet because they are not allowed to develop in the first place.
This layout has further benefits. Since the drivers are locked together, the motors and frames function as a
massive internal metal cabinet bracing. And because the wavelengths generated by the woofers are much larger
than the speaker cabinet dimensions, the drivers radiate as if they were a single point source.
11
11.0 Frequency Response (Horizontal plane)
dB SPL at 1 meter, free field, -15 dBV input (Input attenuator setting = 0db)
12
13
dB SPL at 1 meter, free field, -15 dBV input (Input attenuator setting = 0db)
11.1 Polar Frequency Response
12.0 Specifications
Analog Input
XLR female, Pin 1 ground, Pin 2 positive, Pin 3 negative
Input Impedance = 50k Ohms
Input Sensitivity (1m) = 90 dB @ -15 dBV (pass band)
Analog to Digital
Conversion
Word Length: 24 bit
Sample Rate: 192 kHz
Oversampling = 128x
Signal/Noise ≥ 125 dB
Frequency Response
36 Hz - 45 kHz (+/- 3 dB ), 45 Hz - 40 kHz (+/- 1 dB )
Bass Response
-3 dB @ 36 Hz
Q = 0.707
Slope = 12 dB/octave
Cabinet
19 liters total internal volume
Sealed subwoofer and midbass enclosures
Machined aluminum baffle plate
Subwoofer frames function as lateral cabinet bracing
Long fiber wool acoustic damping throughout
Crossover Frequencies
250 / 3600 Hz
Tweeter
1" ring radiator, Low distortion motor
Rear waveguide chamber
Amplifier: 150W
Midrange
4.0" aluminum cone, Aluminum phase plug, Low distortion motor
+/- 3.5 mm linear excursion
Amplifier: 150W
Woofers
2 x 8" paper cone with low distortion motor
+/- 9.5 mm linear excursion
Amplifier: 500W
Power
Mains Voltage Input: 85 VAC to 265 VAC universal
Idle Power Consumption = 2W
Maximum Power Consumption = 765 W
Weight
Speaker: 35 lbs each (16 kg)
Shipping: 44.5 lbs each (20.2 kg)
Dimensions HxWxD
Cabinet: 14.0 x 9.5 x 13.0 inches (356 x 241 x 330 mm)
Overall: 14.0 x 10.4 x 13.4 inches (356 x 263 x 341 mm)
14
13.0 Dimensions
inches [mm]
15
14.0 Limited Warranty
BAREFOOT SOUND warrants electronic components and cabinetry for a period of three (3) years against manufacturing
defects, covering parts and labor for necessary repairs. Moving speaker components such as tweeters, midranges
and woofers are warranted for a period of one (1) year against manufacturing defects.
Shipping fees incurred from returns for under-warranty service in the first 30-days will be paid by BAREFOOT SOUND. All
shipping fees both to and from BAREFOOT SOUND following this 30-day period must be paid by the customer. All returns,
both during and following the 30-day period, must be affected via the Procedures for Obtaining Warranty Service
described below.
BAREFOOT SOUND makes no other warranty, either express or implied, including but not limited to implied warranties of
merchantability, fitness for a particular purpose, or conformity to any representation or description, with respect to this
product other than as set forth below. BAREFOOT SOUND makes no warranty or representation, either express or implied,
with respect to any other manufacturer’s product or documentation, its quality, performance, merchantability, fitness for
a particular purpose, or conformity to any representation or description.
Except as provided below, BAREFOOT SOUND is not liable for any loss, cost, expense, inconvenience or damage that may
result from use or inability to use the product. Under no circumstances shall BAREFOOT SOUND be liable for any loss, cost,
expense, inconvenience or damage exceeding the purchase price of the product.
The warranty and remedies set forth below are exclusive and in lieu of all others, oral or written, expressed or implied. No
reseller, agent or employee is authorized to make any modification, extension or addition to this warranty.
14.1 Warranty Conditions
The above Limited Warranty is subject to the following conditions:
This warranty covers only normal use of the product. BAREFOOT SOUND shall not be liable under this warranty if any
damage or defect results from (i) misuse, abuse, neglect, improper shipping or installation; (ii) disasters such as fire, flood,
lightning or improper electric current; or (iii) repairs, service or alteration by anyone other than an authorized BAREFOOT
SOUND representative; (iv) damages incurred through incorrect connection or handling, abnormal conditions, high
humidity, deliberate abuse, power surges, water spills, or any other accidents.
You must retain your bill of sale or other proof of purchase to receive warranty service.
No warranty extension will be granted for any replacement part(s) furnished to the purchaser in fulfillment of this
warranty.
To return a defective product, please contact our Customer Service Department at service@barefootsound.com for a
Return Merchandise Authorization (RMA) number and follow the Return of Products Instructions below. The RMA is valid
for 10 days from date of issuance. Returns will not be accepted without an RMA.
14.2 Procedures for Obtaining Warranty Service
RMA (Returning Merchandise Authorization) Policy:
If repairs are required, the customer must obtain a RMA number and provide proof of purchase. RMA and services are
rendered by BAREFOOT SOUND only. Any shipping costs after 30 days (starting from the original date of purchase) on any
item returned for repair is the customers’ responsibility. All returned parts must have a RMA number written clearly on
the outside of the package along with a letter detailing the problems and a copy of the original proof of purchase. No COD
packages will be accepted. No package will be accepted without a RMA number written on the outside of the package.
16
Should you have any problems with your product, please follow these procedures to obtain the service:
1. If the product must be repaired, a RMA number (Return Merchandise Authorization Number) will be issued for
shipment to our repair department. Please follow the instructions given by BAREFOOT SOUND technical support staff to
ship your product. BAREFOOT SOUND will not accept any shipments without a RMA number.
2. Pack the product in its original box or a well-protected box, as outlined by BAREFOOT SOUND Customer Service.
BAREFOOT SOUND will not be responsible for shipping damage/loss of any product not shipped in its original packaging.
BAREFOOT SOUND will not be responsible for shipping damage/loss of any product outside the original 30-day paid
service period. It is very important that you write the RMA number clearly on the outside of the package. Ship the product
with a copy of your bill of sale or other proof of purchase, your name, address, phone number, email address, description
of the problem(s), and the RMA number you have obtained to the address provided to you by BAREFOOT SOUND
Customer Service.
3. Upon receiving the product, BAREFOOT SOUND will repair or replace your product (at BAREFOOT SOUND’s discretion)
and will ship it back to you within 2 weeks (dependent on parts availability) via FedEx.
4. Cross-exchange (Parts only): You will need to provide a valid credit card number as a deposit guarantee when the RMA
number is issued. Once approval has been obtained on your credit card, the part(s) will be shipped FedEx. You will need to
ship defective part(s) back to BAREFOOT SOUND within 15 days to avoid charges to your credit card. If such charges are
incurred, the shipped part(s) will be billed at the then current price.
5. BAREFOOT SOUND will pay for shipping to and from the customer only within the first thirty days following the original
product ship date. Following this 30-day period all shipping fees both for under warranty and post warranty repairs are
the sole responsibility of the customer. The customer also assumes full liability for losses or damages resulting from
shipping as well as all responsibility to pursue remuneration for such issues with their selected carrier.
14.3 Post Warranty Repair
For post warranty repair, the procedures are the same as outlined above for RMA and shipping. However, you are
responsible for shipping charges both ways, current labor rates, and the current price of part(s) used in repair.
14.4 WARRANTY EXCLUSIONS
BAREFOOT SOUND accepts no liability for problems caused by after-market software or hardware modifications or
additions. BAREFOOT SOUND is not responsible for any loss of work (“down time”) caused by a product requiring service.
This warranty is null and void if the defect or malfunction was due to damage resulting from operation not within
manufacturer specifications. It will also be null and void if there are indications of misuse and/or abuse. BAREFOOT
SOUND has the option of voiding the warranty if anyone other than an BAREFOOT SOUND technician attempts to service
the product. BAREFOOT SOUND will not warrant any problems arising from an act of God (lighting, flooding, tornado, etc.),
electrical spikes or surges, or problems arising out of hardware, software, or additional devices added to complement any
product manufactured by BAREFOOT SOUND. Under no circumstances will BAREFOOT SOUND be responsible for any
refund or remuneration exceeding the original purchase price of the product less any shipping fees. BAREFOOT SOUND
will not be held responsible for typographical errors on sales receipts, repair tickets, or on our website. BAREFOOT SOUND
makes every effort to make sure all information on our website is correct.
15.0 Product Registration
Please register your Barefoot products at this web address:
http://barefootsound.com/product-registration/
17
Barefoot Sound LLC
http://barefootsound.com
2016
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