Ebs 500 User Manual

SAMPLE SOUND SETTINGS

ALLROUND

U SERS M ANUAL

HEAVY

ROCK

FRETLESS

Classical instruments together with the EBS-810 Classic cabinet were used when doing these settings
Changes may be needed when using different instruments and cabinets.

CONTENTS: PAGE:

INTRODUCTION
FRONT PANEL

FILTERS
REAR PANEL
BLOCK DIAGRAM
TECHNICAL SPECIFICATIONS
SAMPLE SOUND SETTINGS

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3
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5
6
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DESIGNED AND DEVELOPED BY EBS SWEDEN AB

 GRINDSTUVÄGEN 44-46, SE-167 33 BROMMA, SWEDEN

[phone], FAX : [phone]



E-MAIL: [e-mail]
WEB: www.ebssweden.com

June 2013

INTRODUCTION • GETTING STARTED TECHNICAL SPECIFICATIONS

The EBS Classic 500 is a solid-state
amplifier head, extremely easy to dial-in. It
is designed to match the EBS ClassicLine
cabinets in all styles and situations. The
sound of the Classic 500 amp is a
combination of vintage bass sound and the
transparent ’EBS’ sound that let your
playing style and the character of your
instrument speak. Versatility is provided by
a carefully designed EQ section with very
creative dual midrange sections. The
boosted drive control adds everything from
subtle, vintage overdrive to mean, crushing
distortion – without loosing the low-end.
These brief tutorials will help you to
become acquainted with some of the fea­tures of the EBS Classic 500.

GETTING STARTED...

1. Carefully unpack the bass head.

2. Check that the Volume and Drive controls

are set to zero, fully counter clockwise. Set
all the other controls to mid position and
make sure that the switch marked Character
is in its’ outer position. Now the EBS
CL500’s settings are "zeroed" and ready to
be personalized.

3. Power up the head and plug in your bass.

4. While plucking the strings as hard as you

would during your hardest playing, adjust the
GAIN knob until the PEAK led starts to flash
only at highest peaks.

5. Move over to the VOLUME knob and adjust

for the desired output volume.

BUILDING THE SOUND...

Your EBS Classic 500 features an en-
hanced tone shaping circuit that will enable
you to create a variety of bass sounds.

The filters are basically the boost/cut design.

6.

This means that the level controls marked
with + and - signs, either boost or cuts the
selected frequency band. Further, the two
MID sections have got frequency controls for
precise adjustment of the midrange.

7. Gradually increase or decrease the level and

vary the frequency of the various filter sec­tions. Notice how the sound is affected.

8. Repeat as above by try ing out the preshape

filter Character.

9. Proceed to the Drive knob. This control

adjusts the overdrive and can be seen as
moderate up to 12 o’clock, after that point
you could get highly distorted sounds.

10. For further reference, check out the sample

sound setting on the last page of this manual.

This was a brief tutorial of EBS Classic

500. As you go on further in this manual,
you will learn how to use and utilize all of
the useful features that the EBS Classic 500
offers you.

GOOD LUCK!

INPUT: Input Impedance 1 Mohms // 100 pF
GAIN: Gain Range min/max -∞/ +28 dB

Gain Peak LED +10 dBv
Frequency Response +0 / -3 dB 35 - 20k Hz

CHARACTER: Filter: Type Shelving High/Low Pass
Gain: +6 dB @ 75 Hz

-2.5 dB @ 800 Hz
+3 dB @ 9 kHz

FILTER SECTION: Bass Filter: Type 12 dB/oct. Shelving
Gain +/- 15 dB @ 100 Hz
Low Mid Filter: Type Bandpass Filter
Range 150 – 900 Hz, Q=0.9
Gain +/- 15 dB
High Mid Filter: Type Bandpass Filter
Range 1.2 – 7 kHz, Q=1.1
Gain +/- 15 dB
Treble Filter: Type Shelving
Gain Range +/- 15 dB @ 10 kHz

DRIVE SECTION: Gain Range min/max 0 / 30 dB
Gain Type Class A Tube Emulator
Low End Compensation < 250 Hz

BALANCED OUTPUT: Output Level nominal - 10 dBv
XLR Connections 1-GND, 2-Hot, 3-Cold
Options Pre/Post Eq, GND Lift,

LINE OUT: Output Impedance < 5 kohms
Nominal Signal Level 0 dBv

POWER AMP: Continuous Output Power 440 W RMS @ 4 ohms
500 W RMS @ 2 ohms
Protection Thermal

AUXILIARY INFO: Power Requirements max 800 W
Mains Protection: T5A Fuse (230V)
T10A Fuse (100/120V)
Dimensions (WxDxH): 49 cm x 30 cm x 21,5 cm

19.3” x 11,8” x 8.5”
Weight: 14 kg ( 31 lbs.)

Specifications are subject to change without notice!

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BLOCK DIAGRAM FRONT PANEL CONTROLS

INPUT - A low noise, high impedance
instrument input for all types of
instruments, active and passive.

___________________________________

CHARACTER - The Classic 500 provides
a preshaping filter, character, which
operates independently from the filter
section. This gives the user the opportunity
to preshape the sound before the final
processing with the filters.
When pressed to its inner position, a boost
is achieved in both the bass and treble
ranges, while the midrange is being slightly
cut.

__________________________________

GAIN - Control to adjust the instruments'
signal strength to the right operating level in
the Classic 500.
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
Classic 500.

DRIVE - The DRIVE knob controls the
amount of gain in the tube emulation
stage, and provides an extra gain all the
way up to 30 dB. The gain is
compensated over this section producing
a warm overdrive while the output
remains more or less constant. This
control also compresses the sound when
turning up level up to maximum,
producing a pure tube like limitation.
The lower frequencies below 250 Hz are
bypassed in the Drive stage, producing a
warmer distortion without saturation,
allowing the player to add more low bass
than with conventional bass amps. The
bass is compensated over the tube stage,
which gives the same bass response up to
mid distorted levels.
__________________________________

VOLUME - The VOLUME knob controls
all volume in the unit, controlling the
power amp and LINE output. The
balanced output (XLR) is not effected by
the setting of this knob.
__________________________________

STANDBY – This switch mutes all
outputs and disconnects the speaker
outputs. This is suitable for tuning your
instrument or when you wish to change
speaker connections without powering off
the amp.
__________________________________

POWER – Powers the unit on or off.

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FILTERS REAR PANEL

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.

LOW MID has a frequency range of 150­900Hz. This filter facilitates total control
over the lower midrange frequencies,
defining the tone and the body of your
sound.

HIGH MID has frequency range of 1.2­7 kHz. This filter gives you total control
over the higher midrange frequencies
giving definition and good voicing to you
sound.

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

BALANCED OUTPUT - Is a high quality
balanced output that functions as a line box
for connecting to PA mixing consoles or to
studio or broadcast recording units.
Lifting ground is a great aid in many
occasions. When required, set the Gnd Lift
switch to inner position to disconnect the
ground from the output.
The Post Eq switch selects the signal
source. In the inner position this switch
selects the overall sound from the amp.
Otherwise, in the outer position an
uncolored sound is taken immediately
after the input and gain sections.

__________________________________

LINE OUT - This is a fullrange output
that will drive multiple poweramps,
extending the power of the system.

__________________________________

SPEAKER OUTPUTS – The two
Speakon® connectors allow you to
connect the amp to your favorite cabinets.
The connectors are wired in parallel, so it
doesn’t matter which one to use when only
connecting one cabinet.
Minimum permissible speaker load is 2
ohms, which means that you could connect
any combination of speakers as below:

• One 4 ohms cabinet.

• Two 4 ohms cabinets.

• One 4 ohms cabinet and two 8

ohms cabinets.

• A total of four 8 ohms cabinets.

Also, higher impedance cabinets work
well, such as only one 8 ohms cabinet. The
output power will however be lower in
this case.

POWERAMP- The internal poweramp is
of MOSFET design giving natural sound
reproduction and high power output with
exceptional clarity.
The incorporated soft clip system provides
tube-alike distortion characteristics,
protects the power amp from saturation and
increases its output performance and sound
quality.
The poweramp makes possible maximum
continuous power output, reducing the
maximum temperature of the unit by the
use of a temperature controlled active
cooling system.

! Note that you may run the Classic 500
without any speaker load. No damage
will be done to the amplifier whatsoever.

IMPORTANT: Make sure not to cover
the fan or the ventilation holes on the amp.

,

EBS will not take responsibility for
eventual hearing damages caused by
the powerful Classic 500.

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