EBS Reidmar Professional Bass Head User Manual

EBS Reidmar Professional Bass Head

Product Information

The EBS Reidmar 502 is a professional bass head amplifier designed and developed in Sweden by EBS. It is capable of handling a minimum 2 Ohm load and is suitable for use with Mini size ClassicLine or NeoLine cabinets, as well as single full-size EBS  cabinets. The amplifier features various controls and filters for tonal shaping, as well as balanced outputs, an effect loop, and auxiliary information.

Specifications:

• Input Impedance: 2 Mohms // 100 pF
• Gain Range: -oo/ +30 dB
• Character Filter: Shelving High/Low Pass
• Compressor: 20 – 20.000 Hz
• Filter: Bass (+7 dB @ 40 Hz), Middle (-2 dB @ 800 Hz), Treble (+3 dB @ 10 kHz)
• Output Level: -10dBv
• XLR Connections: 1-GND, 2-Hot, 3-Cold
• Continuous Output Power: 250 W RMS @4 ohms, 500 W RMS @2 ohms
• Protection: Short circuit, High temperature
• Power Requirements: T2.5A Fuse (230V), T5A Fuse (100/120V)
• Dimensions: 33 cm x 25 cm x 7.5 cm (13 x 9.8 x 3.0 inches)
• Weight: 3.4 kg (7.6 lbs.)

EBS Reidmar 502 Bass Head
The EBS Reidmar 502 is a professional bass head amplifier designed and developed in Sweden by EBS. It is capable of handling a minimum 2 Ohm load and is suitable for use with Mini size ClassicLine or NeoLine cabinets, as well as single full-size EBS cabinets. The amplifier features various controls and filters for tonal shaping, as well as balanced outputs, an effect loop, and auxiliary information.

Product Usage Instructions

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 sure all push switches are set to their outer positions.
3. Connect one or more speaker cabinets to the speaker output. Ensure that 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 until the peak LED starts to flash at peaks.
6. Move over to the VOLUME knob and adjust for the desired output volume.
7. The first tonal shaping circuitry is the Character Filter next to the GAIN control. This filter provides a pre-shape EQ prior to further fine-tuning of your sound.
8. Enable the filters by pressing the Filter Active push button 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 cut the selected frequency band. Further, the MIDDLE section has a frequency control for precise adjustment of the midrange.

Welcome to the EBS Reidmar 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 minimum of 2 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 Reid mars 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.
   Move over to the VOLUME knob and adjust for the desired output volume.

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

7. 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.

8.  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.

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

10. 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.

11. 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 !

FUNCTIONAL DESCRIPTION FRONT PANEL CONTROLS

1. INPUT
   A low noise, high impedance instrument input that will interface with passive and active instruments perfectly.

2. CHARACTER FILTER
   The EBS Reidmar provides a preshape filter, , 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 pressed to inner position, boost is achieved in bass and treble ranges respectively, while the midrange has a slight drop in gain.

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 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.

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 non-peaking 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.
   
   
   

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.

8. PILOT LAMP – Indicates power on condition.

FUNCTIONAL DESCRIPTION REAR PANEL

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 position to disconnect the ground from the balanced output.

3. PRE/POST EQ SWITCH
   The setting sends the signal after the and sections to the balanced output. The setting outputs the signal after the entire preamp.

4. 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 and compressor sections.

5. LINE OUT
   This is a full range output that will drive multiple power amps, extending the power of the system. The signal present at this output is taken after the volume control.

6. PHONES
   Connect standard headphones to this output. This output automatically mutes the internal power amp and line output LINE OUT when connected.

7. SPEAKER OUTPUT
   Connect your speakers here. Care should be taken when connecting speakers so that the minimum total impedance is not lower than 2 ohms.
   Note: Lower impedance than 2 ohms may cause permanent damage to the amp.
   EBS will not take responsibility for eventual hearing damages caused by the powerful EBS Reid mar.

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!

9. MAINS
   Connect only to the indicated mains AC voltage and replace fuse if needed only with same type and value.

10. MAINS SELECTOR SWITCH
    Selects the operating mains voltage. Unplug the amp before selecting the mains voltage!

11. POWER
    Switches the amp on or off.

SPECIFICATIONS

EBS REIDMAR 502
PROFESSIONAL BASS HEAD
DESIGNED AND DEVELOPED BY EBS SWEDEN AB
GRINDSTUVÄGEN 44-46, SE-16733 BROMMA, SWEDEN
+46 8 735 00 10,
FAX : +46 8 735 00 05
E-MAIL: info@ebssweden.com
WEB: www.ebssweden.com

References

• EBS PROFESSIONAL BASS EQUIPMENT - EBS Professional Bass Equipment Since 1988
• Manual-Hub.com – Free PDF manuals!

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