Ebs Reidmar 500 User Manual

EBS REIDMAR 500

USERS MANUAL

REIDMAR 500

PROFESSIONAL BASS HEAD

CONTENTS Page

Introduction 2
Block Diagram 3
Front Panel Controls 4
Rear Panel Features 6
Specifi cations 8

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USERS MANUAL

EBS REIDMAR 500

About the EBS Reidmar 500 Bass Head!

The EBS Reidmar provides a full bodied,
warm and transparent tone throughout
the entire range. It is equipped with EBS
renowned built in compressor, professional
balanced XLR-output, Character filter and an
efficient 4-Band EQ that lets you master the
sound. The Reidmar does not compromise
on the tone, it uses and benefits from all
the 250 Watts RMS, without getting muddy
or clipping, giving a powerful and highly
portable amp with an impressive tone that
will handle any stage or studio session gig.

The EBS Reidmar handles a 4 Ohm load and
is the perfect companion to a stack of Mini
size ClassicLine or NeoLine cabinets, or used
with a single full size EBS cabinet.

The Reidmar amp is designed and developed
in the heart of Sweden by EBS.

GETTING STARTED...

1. Carefully unpack the bass head.

2. Check that all knobs are set fully counter
clockwise besides the EQ controls marked
BASS, MIDDLE and TREBLE which should
be set to mid position. Make also sure
all push switches are set to their outer
positions. Now the EBS Reidmars settings
are ”zeroed” and ready to be personalized.

3. Connect one or more speaker cabinets
to the speaker output. Make sure the total
impedance is not below 4 ohms.

4. Turn on the POWER switch.

5. Plug in your bass. While plucking the strings
as hard as you would during your hardest
playing, gradually increase the GAIN knob
unit the peak LED starts to flash at peaks.

6. Move over to the VOLUME knob and
adjust for the desired output volume.

BUILDING THE SOUND...

7. The first tonal shaping circuitry is the
Character Filter next to the GAIN control.
This filters provides a preshape EQ prior
of further fine tuning of your sound.

8. Enable the filters by pressing the Filter
Active pushbutton and explore the filter
section. Play your bass. Note that there
isn’t any difference in sound yet.

9. The filters are basically of the boost/cut
design. This means that the level controls
marked with + and - signs, either boost
or cuts the selected frequency band.
Further, the MIDDLE section has got a
frequency control for precise adjustment
of the midrange.

10. Gradually increase or decrease the level
and vary the frequency of the middle
filter when operating the middle filter.
Notice how the sound is effected. An A/B
comparison can be made by toggling the
filter active switch.

11. Proceed to the COMP/LIMIT knob. This
control adjusts the compression and
is useful when playing very dynamic or
loud.

12. Turn up the COMP/LIMIT knob to mid
and max position. Notice how the peaks
in volume will straighten out as you play
harder and harder.

13. Now, go on to the BRIGHT and turn it
half way up. Play your bass. The BRIGHT
filter is a high pass filter which works on
the highest frequencies of the bass to
give enhanced ambiance and presence.

This was a brief introduction and as you go
on further in this manual, you will learn how
to use and utilize all of the useful features
that the EBS Reidmar offers you.

GOOD LUCK !

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EBS REIDMAR 500

EBS REIDMAR 500 – BLOCK DIAGRAM

USERS MANUAL

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USERS MANUAL

EBS REIDMAR 500 – FRONT PANEL CONTROLS

EBS REIDMAR 500

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2 5

3

4

1. INPUT -A low noise, high impedance

instrument input that will interface with
passive and active instruments perfectly.

2. CHARACTER FILTER -The EBS Reidmar 500

provides a preshape filter, Character, which
operate independently from the other
preamp functions. This gives the user the
opportunity to preshape the sound before
the final processing with the other features
of the preamp. When on, boost is achieved
in bass and treble ranges respectively, while
the midrange has a slight drop in gain.

Character filter ON

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3. GAIN -Control to adjust the instruments’

signal strength to the right operating level in
the EBS Reidmar. For optimum basic signal
level, turn up the GAIN knob until the PEAK
led starts flashing from the strongest signal
from the instrument.

Note: A correctly set GAIN is vital for the signal
processing to work properly in the EBS Reidmar.

4. COMP/LIMIT -A low noise compressor

limiter that works fast and effectively,
tightening up the sound and preventing
the bass head from saturating at peaks
when approaching the headroom limit. A
string may be plucked very hard and fast,
without any greater difference in level or
side effects. The COMP/LIMIT knob sets the
compression ratio, i.e. The signal strength
relation between the input and output; the
higher ratio the more compression. The LED
intensity dynamically indicates the amount
of compression during play.

5. FILTERACTIVE – This switch actives the filter

section described under point 6.

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EBS REIDMAR 500

6. FILTERS -The filter section contains four

enhanced performance filters:

BASS is a ’shelving’ type 12dB/oct slope
phase compensated bass filter with a wide
gain range.

MIDDLE has an extended frequency range
of 100-6000 Hz. This filter facilitates
total control over the mids, with a wide
bandwidth giving a natural and non­peaking result using frequency dependent
gain. In addition, at minimum setting this
filter facilitates a notch function, suitable for
cutting an exact frequency or eliminating
acoustic coupling.

TREBLE is a shelving type filter controlling
the higher mids and treble registers, giving
presence and ambience to the sound.

BRIGHT is an advanced high pass filter
capable of producing bright high treble
timbre, without adding practically any noise.

USERS MANUAL

Midrange filters

7. VOLUME -The VOLUME knob controls

all volume in the unit, controlling the
poweramp and LINE output. The balanced
output (XLR) is not affected by the setting of
this knob.

9. PILOT LAMP -Indicates power on condition.

Bass filter

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Treble filter

Bright filter

USERS MANUAL

EBS REIDMAR 750 – REAR PANEL FEATURES

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EBS REIDMAR 500

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1. BALANCED OUTPUT -A balanced output

functions as a high quality line box for
connecting to PA mixing consoles or to
studio or broadcast recording units, with
high noise immunity. The volume level does
not effect this output.

2. GND LIFT SWITCH -Lifting ground is a great

aid in many occasions eliminating ground
noise and hum. When required, set this
switch to Lift position to disconnect the
ground from the balanced output.

3. PRE/POST EQ SWITCH -The switch selects the

signal source. In the inner position this
switch selects the overall sound included
settings on the EQ, otherwise, in the lower
position an uncolored sound is taken
immediately after the amplifiers input.

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4. LINE OUT -This is a fullrange output that will

drive multiple poweramps, extending the
power of the system. The signal present at
this output is taken after the volume control.

5. PHONES - 1/4” stereo contact to connect

a pair of standard headphones.

6. SPEAKER OUTPUT – Connect your speakers

here. Care should be taken when
connecting speakers so that the minium
total impedance is not lower than 4 ohms.

Warning: Lower impedance than 4 ohms may cause
permanent damage to the amp. EBS will not take
responsibility for eventual hearing damages caused by
the power ful EBS Reidmar 500.

7. MAINS SELECTOR SWITCH -Selects the

operating mains voltage. Unplug the amp
before selecting the mains voltage!

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EBS REIDMAR 500

8. SYSTEM FAN – The amps performance is

maintained among other techniques with a
fan controlling the temperature of the unit.
Make sure not to cover the ventilation
openings of the amp! IMPORTANT!

USERS MANUAL

9. EFFECTS LOOP – This is a serial effects loop

for the use of external units such as box or
rack effects. Nominal level is set for use
with standard stomp boxes.
The loop puts the external effects after the

filter, compressor and drive sections.

10. MAINS – Connect only to the indicated

mains AC voltage and replace fuse if
needed only with same type and value.

11. POWER -Switches the amp on or off.

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USERS MANUAL

INPUT: Input Impedance 2 Mohms // 100 pF
GAIN: Gain Range min/max -oo/ +30 dB

CHARACTER: Filter: Type Shelving High/Low Pass

COMP/LIMIT: Compressor Gain 0 dB

FILTER SECTION: Bass Filter: Type 12 dB/oct. Shelving

BALANCED OUTPUT: Output Level Nominal -10d Bv

EFFECT LOOP: Loop Signal Level nominal -10 dBv

LINE OUT: Output Impedance 100 ohms

PH ONES OU T: Impedance recommended 32 - 200 ohms

POWER A MP: Continuous Output

AUXILIARY INFO: Power Requirements max 500 W

Specifications are subject to change without notice!

EBS REIDMAR 500 - PROFESSIONAL BASS HEAD

DESIGNED AND DEVELOPED BY EBS SWEDEN AB• GRINDSTUVÄGEN 44-46, SE-16733 BROMM A,SWEDEN
PHONE [phone], FAX:[phone] • E-MAIL: [e-mail] WEB: www.ebssweden.com

Gain Peak LED +10 d B v
Frequency Response +0 / -3 dB 20 - 20.000 Hz

Gain: Lo +7 dB @ 40 Hz

Mid -2 dB @ 800 Hz
Hi +3 dB @ 10 kHz

Attenuation max 24 dB
Compression Ratio max 3:1
Attack (80%) typ <10 m s
Release (80%) typ 100 ms

Gain Range +/- 18 dB @ 60 Hz

Middle Filter: Type Bandpass Filter

Frequency Range 100 - 6.000 Hz
Q - Boost 0.7 - 1.1
Q - Cut 0.8 - >10
Gain Range +/- 12-15 dB

Treble Filter: Type Shelving

Gain Range +/- 18 dB @ 6 kHz

Bright: Type Shelving

Gain Range +15/-0 dB @ 10 kHz

Frequency Response +0/-3 dB 10 - 20k Hz
XLR Connections 1-GND, 2-Hot, 3-Cold
Options GND Lift, Pre/Post EQ

Gain Uni t y (1:1)
Output Impedance 100 ohms
Input Impedance >50 kohms // 100 pF

Signal Level nominal 0 dBv

Signal Level nominal 0 dBv

@4 ohms 250 W RMS
Power
Dynamic Output Power 470 W peak
Protection Short circuit,

High temperature

Mains Protection: T2A Fuse (230V)

T4A Fuse (100/120V)

Dimensions (WxDxH) max 32.5 cm x 25 cm x 7.5 cm

12.8” x 9.8” x 3.0”

Weight: 3.1 kg ( 7 lbs.)

EBS REIDMAR 500

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