Fishman BP-100 Manuel utilisateur

BP-100

Acoustic Bass Pickup

Owner

Owners Man

s Manual

ual

Thank you for your purchase of a FISHMAN product. Please read these

instructions carefully. If you have any questions or problems, contact our

PRODUCT INFORMATION LINE at 978-988-9665.

The BP-100 is a bridge mounted, piezo-ceramic pickup. It senses string

vibrations via two piezo elements, fastened between adjacent string pairs.

The elements are held to the bridge with two felt lined metal clips. The pickup

is terminated to a specially modified Switchcraft 1/4" jack.

The BP-100, reproduces a very deep bass tone with emphasis on the funda-

mental pitch, unlike most other bass pickups which tend to emphasize the 1st

overtone. The BP-100 responds evenly throughout all playing registers and

resists feedback at high volume levels. The pickup installs non-destructively

in minutes and can easily be transferred to another instrument.

PARTS LIST

• BP-100 Pickup

• 2 Felt-covered Clips

• 1" Rubber Isolation Plug

• 3/4" Rubber Isolation Plug

• Instrument Cable

INSTALLATION

Prepare the Bridge

1. The area of the bridge where the elements will be mounted must be flat-

tened with a sanding block or a flat file. Otherwise, the performance of the

pickup will be adversely affected. Most problems with the pickup's perfor-

mance can be remedied by flattening the bridge face.

Use a 120-150 grit sanding block or a file to flatten the area that will make

direct contact with the elements. Check the flatness of the bridge face with

the edge of a steel ruler or single-edged razor blade.

BP-100 Acoustic Bass Pic

BP-100 Acoustic Bass Pickup

kup

2. Clean the bridge with alcohol before mounting the elements. Remove all

rosin deposits.

Mount the Pickup

CAUTION: DO NOT PULL OR BEND THE WIRES AT THE BASES OF

THE ELEMENTS. YOU MAY DESTROY THE PICKUP!

1. Slide the pickup wire through the E-string side wing slot.

2. Mount the elements black side up on the side of the bridge that faces the

fingerboard. Center one element between the G and D strings with its

straight edge 1/8" below the top edge of the bridge. Slide a felt-covered

clip over this edge to secure the element. The clip should be pushed tightly

against the top of the bridge. A loose clip may be tightened by squeezing

it before installation.

Install the other ele-

ment in the same

fashion, centering it

between the A and E

strings. Note that if

the bridge is

beveled at the top

edge, the elements

must be mounted

below the bevel.

Owner

Owners Man

s Manual

ual

3. Weave the ground wire over the string ball-ends making sure to contact

each ball.

4. Determine which isolation plug fits snugly into the E-string side wing-hole

on the bridge. Slip the wire

into the slit of the isolation

plug and fit the plug into the

wing-hole.

FINE TUNING

• Mounting the elements 1/4" to

1/2" below the top edge of the

bridge will produce a different

sound.

• You may fine tune the string

balance by moving the upper

corner of an element closer to

or further from an individual

string.

• Once the optimum position is

determined, the elements

should not be disturbed or

removed from the instrument.

• The mounting clips must be

tight. They should be retight-

ened after installation to com-

pensate for compression of

the felt.

BP-100 Acoustic Bass Pic

BP-100 Acoustic Bass Pickup

kup

PLUGGING IN

Due to the nature of passive pickups, the type of cable you use and the input

you plug into will affect the quality of your sound.

INSTRUMENT CABLE

Cable lengths over 10 feet (before preamp) will cause audible high frequency

loss. Use a high quality, low capacitance shielded cable. This will insure min-

imal tone coloration and hum. Using fully shielded metal plugs will also help

eliminate hum.

KINDS OF AUDIO INPUTS

Because of the lack of standardization for high impedance audio inputs, spe-

cial attention should be paid to what you are plugging into:

The BP-100 will sound best when plugged directly into an input with a 10 M

Ω

impedance. At 10 M

Ω

, the full frequency response of the bass is repro-

duced. The BP-100 can also be plugged into inputs as low as 1 10 M

Ω

with

adequate results. At 1 M

Ω

, the lowest bass frequencies will be slightly rolled

off.

PREAMPS

We strongly recommend using a 10 M

Ω

, impedance matching, buffered pre-

amp in conjunction with the pickup.

A matching preamp will:

1. Realize the full frequency response potential of the pickup.

2. Permit long cable runs (after the preamp) without signal deterioration.

3. Allow precise volume and tone shaping with dedicated EQ.

4. Insure compatibility with virtually any instrument level audio input available.

Owner

Owners Man

s Manual

ual

Fishman Transducers manufactures a complete line of compatible preamps,

all with 10 Meg Ohm inputs:

MODEL BII - Outboard Acoustic Instrument Preamp

PRO-EQ II - 4 Band Acoustic Instrument Preamp

PRO-EQ PLATINUM - Outboard Acoustic Instrument Preamp / EQ / D.I.

DUAL PARAMETRIC D.I. - Fully Parametric Two Band Preamp / D.I.

ACOUSTIC / BASS BLENDER - 2 Channel Pickup / Mic Preamp

POCKET BLENDER - 2 Channel Pickup/Mic Preamp

BASS AMPLIFIERS

Most bass amplifiers (at least 1 M

Ω

input impedance) will yield useable

results. Beware of bass amps with pre-voiced electric bass EQ. These amps

will usually sound boomy in the bass and brittle in the top end, even with all

controls set "flat". Pre-voiced EQ can be defeated by plugging directly into

the power amp, (with a buffering preamp) via an effects return jack.

SPEAKERS

Sealed speaker enclosures provide the most punch and uncolored reproduc-

tion. Most modern ported enclosures tend to overly interact with the instru-

ment and cause low end emphasis that masks the acoustic quality of the

instrument.

DIRECT BOXES

You can plug the BP-100 into an "active" direct box (1-10 M

Ω

input) with

very good results. Using a passive direct box will sound weak and thin.

P A / RECORDING CONSOLES

Professional PA and recording consoles have a much lower input impedance

than what is acceptable for the BP-100. For usable results, you will need an

impedance matching preamp. Plugging a passive piezo pickup into a mixer

without an impedance matching preamp will sound harsh and thin.

BP-100 Acoustic Bass Pic

BP-100 Acoustic Bass Pickup

kup

PICKUP

BUZZES

and / or

RATTLES

THIN

and HARSH

TONE

Mechanical noise from

felted clips or pickup.

Loose shielding cap or nut on jack. Check the shielding cap and nut

on jack for tightness.

Mechanical noise from straight plug.

Mechanical noise from

the instrument.

Use only a right angle plug into the

pickup to reduce vibration.

Cracks on your instrument may

create buzzes that are reproduced

by the pickup.

Listen to the instrument acoustically

before blaming the pickup.

FEEDBACK

and / or

POOR

TONE

Bridge is not flat.

Check the flatness of the bridge face with

the edge of a steel ruler or a single edge

razor blade. If necessary, use a 120-150

grit sanding block or a flat file to level the

area of the bridge face.

Flatten only the area that will make direct

contact with the elements.

Soundpost is too tight.

Check the instrument's soundpost for fit.

An overly tight soundpost can be

responsible for poor amplified tone.

Pickup wire touching bridge or top.

Make sure that the pickup wire is not touch-

ing the bridge or the top of the instrument.

Unwanted sounds are easily transmitted

through this wire.

Impedance mismatch Use an impedance matching 10 M

Ω

buffer-preamp with the pickup

Bass amp with pre-voiced

electric bass EQ

Pre-voiced EQ can be defeated by

plugging directly into the power amp,

(with a buffering preamp)

via an effects return jack

SYMPTOM CAUSE SOLUTION

TROUBLESHOOTING

Check that the felt covered clips

and the pickup are not in contact

with the strings.

Owner

Owners Man

s Manual

ual

The FISHMAN BP-100 Acoustic Bass Pickup Pickup is warranted to function for a

period of One (1) Year from the date of purchase. If the unit fails to function properly

within the warranty period, free repair and the option of replacement or refund in the

event that FISHMAN is unable to make repair are FISHMAN’s only obligations. This

warranty does not cover any consequential damages or damage to the unit due to

misuse, accident, or neglect. FISHMAN retains the right to make such determination

on the basis of factory inspection. Products returned to FISHMAN for repair or

replacement must be shipped in accordance with the Return Policy, as follows. This

warranty remains valid only if repairs are performed by FISHMAN. This warranty gives

you specific legal rights and you may also have other rights which may vary from state

to state.

Return Policy

To return products to FISHMAN TRANSDUCERS, you must follow these steps...

1. Call FISHMAN TRANSDUCERS at 978-988-9199 for a Return Authorization

Number (“RAN”).

2. Enclose a copy of the original Bill of Sale as evidence of the date of purchase, with

the product in its original packaging and a protective carton or mailer.

3. FISHMAN TRANSDUCERS’ technicians will determine whether the item is covered

by warranty or if it instead has been damaged by improper customer installation or

other causes not related to defects in material or workmanship.

4. Warranty repairs or replacements will be sent automatically free of charge.

5. If FISHMAN TRANSDUCERS determines the item is not covered by warranty, we

will notify you of the repair or replacement cost and wait for your authorization to

proceed.

ISHMAN

RANSDUCERS

340-D Fordham Road Wilmington MA 01887 USA

Phone 978-988-9199 • Fax 978-988-0770

www.fishman.com

009-015-001 • 9-00

Limited

Limited W

Warranty

arranty

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