Mark bass Little Mark IV Bass Guitar Solid-State Amplifier Owner’s Manual

: June 5, 2024
: Mark bass

Table of Contents

Mark bass Little Mark IV Bass Guitar Solid-State Amplifier
IMPORTANT SAFETY INSTRUCTIONS
TECHNICAL DETAILS
TROUBLESHOOTING TIPS
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Mark bass Little Mark IV Bass Guitar Solid-State Amplifier

Mark-bass-
Little-Mark-IV-Bass-Guitar-Solid-State-Amplifier-image

IMPORTANT SAFETY INSTRUCTIONS

Read these instructions;
Keep these instructions;
Heed all warnings;
Follow all instructions;
Do not use this apparatus near water;
Clean only with dry cloth;
Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions;
Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat;
Do not defeat the safety purpose of the polarized or ground-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet;
Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus;
Only use attachments/accessories specified by the manufacturer;
Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from the tip-over (and Fig 21 DU Tipping Cart Symbol).
Unplug this apparatus during lightning storms or when unused for long periods of time;
Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped;
“Warning: to reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture; and objects fi lled with liquids, such as vases, should not be placed on this apparatus”;
To completely disconnect this apparatus from the AC mains, disconnect the power supply cord plug fron the AC receptacle;
The mains plug of the power supply cord shall reamin readily accessible.
In case of voltage selector make sure the switch on the rear panel is on the correct voltage before connecting it to the AC power, and the fuse is the right value for that voltage (This selector is not available on the 100V version).
Please change the voltage/fuse values label located near the voltage selector matching the voltage/fuse values when you need to change the voltage of the apparatus.
“WARNING: this apparatus must be securely attached to the floor or wall in accordance with installation istruction. Tipping, shaking, or rocking the machine may cause injury or death.”

MORE INFORMATION
For warranty and service information, please contact your local Markbass distributor (contact information available at www.markbass.it). For more technical information, please visit us at www.markbass.it and fill out the form on the Support page. We hope you enjoy your power amp and use it to make great music!

“The Lightning Flash with arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product enclosure that may be of suficient magnitude to constitute a risk of shock to persons.”
“The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.”
“To be used only with altitude not exceeding 2000 m”
“To be used only where the climateis not tropical”

LITTLE MARK IV / LITTLE MARK IV 300 U FRONT PANEL

LITTLE MARK IV NINJA FRONT PANEL

LITTLE MARK IV COMBO FRONT PANEL

FRONT PANEL

UNBALANCED 1/4” JACK INPUT
MUTE SWITCH
SOLID-STATE GAIN
CLIP LED
LOW EQUALIZATION CONTROL KNOB
MID LOW EQUALIZATION CONTROL KNOB
MID HIGH EQUALIZATION CONTROL KNOB
HIGH EQUALIZATION CONTROL KNOB
OLD SCHOOL FILTER
LINE OUT LEVEL KNOB
MASTER VOLUME LEVEL KNOB
FOOTSWITCH INPUT
3-SWITCH (FLAT/SCOOPED-MID/FSW)
SCOOPED-MID EQ LED
MAIN ON/OFF SWITCH

LITTLE MARK IV / LITTLE MARK IV 300 U/ LITTLE MARK IV NINJA / LITTLE MARK IV COMBO REAR PANEL

AC POWER SOCKET
SPEAKER OUT SPEAKON / 1/4” COMBO JACK (LITTLE MARK IV NINJA: SPEAKER OUT SPEAKON)
SPEAKER OUT 1/4” JACK (NOT PRESENT ON LITTLE MARK IV NINJA)
TUNER OUT 1/4” JACK
RETURN EFFECT 1/4” JACK
SEND EFFECT 1/4” JACK
PRE/POST EQUALIZATION CONTROL SWITCH
GROUND LIFT CONTROL SWITCH
LINE OUT XLR

LITTLE MARK IV / LITTLE MARK IV 300 U/ LITTLE MARK IV NINJA / LITTLE MARK IV COMBO

TECHNICAL DETAILS

INPUTS

INPUT impedance: 1 Mohm, max. voltage: 9 Vpp
RETURN impedance: 22 Kohm, max. voltage: 10 Vpp

CONTROLS

GAIN –46 dB to +23 dB range
LINE OUT level control on front panel
PRE/POST EQ (for line out) switch on rear panel
GROUND LIFT switch on rear panel
MUTE SWITCH
MASTER VOLUME

EQUALIZATION

LOW center frequency 68 Hz; level: ±16 dB
MID LOW center frequency 360 Hz; level: ±16 dB
MID HIGH center frequency 800 Hz; level: ±16 dB
HIGH center frequency 10 kHz; level: ±16 dB
OLD SCHOOL max cut range: 250 Hz – 20 kHz
3 WAY SWITCH flat/scooped-mid/FSW

OUTPUTS

SEND EFFECTS unbalanced, max. voltage 20 Vpp
TUNER OUT unbalanced, max. voltage 2 Vpp
LINE OUT balanced XLR, max. voltage 20 Vpp
SPEAKER OUT speakon/1/4” combo, 1/4” Little Mark IV Ninja : only speakon

OTHERS

HEIGHT 2 rack units (3.27 in. / 83 mm)
WIDTH 10.87 in. / 27.6 cm (19 in. / 48.3 cm with rack ears)
DEPTH 10.04 in. / 25.5 cm
WEIGHT 5.95 lbs / 2.7 kg (LITTLE MARK IV 300) 6.17 lbs / 2.8 kg (LITTLE MARK IV) 6.61 lbs / 3 kg (LITTLE MARK IV NINJA)

LIMITER

FOOTSWITCH (OPTIONAL) FLAT/SCOOPED-MID/FSW

OUTPUT POWER

300W RMS @ 4 ohm, 150W RMS @ 8 ohm (LITTLE MARK IV 300)
500W RMS @ 8 ohm, 300W RMS @ 4 ohm (LITTLE MARK IV/LITTLE MARK IV COMBO)
1000W RMS @ 4 ohm, 600W RMS @ 8 ohm (LITTLE MARK IV NINJA)

POWER REQUIREMENT

LITTLE MARK IV, LITTLE MARK IV COMBO, LITTLE MARK IV NINJA 100V; 120V; 230V; 240V 50/60Hz (Voltage is factory preset according to reg ofion sale). Markbass amps/combos are manufactured to be sold and used in the country of purchase, and are factory preset to that country’s voltage. Due to homologation issues, the voltage may not be changed.
LIT TLE MARK IV 300 U MULTI VOLTAGE 120V÷240V* (not available on the 100V version manufactured for Japan)

FUSE

LITTLE MARK IV, LITTLE MARK IV COMBO:

EUROPE 4 A 250V T 5×20
AUSTRALIA/UK 4 A 250V T 5×20
USA/CANADA 8 A 250V T 5×20
JAPAN 10 A 250VT 5×20

LITTLE MARK IV NINJA

EUROPE 8 A 250V T 5×20
AUSTRALIA/UK 8 A 250V T 5×20
USA/CANADA 10 A 250V T 5×20
JAPAN 12 A 250VT 5×20

LITTLE MARK IV 300 U

EUROPE 3.15A 250V T 5×20
AUSTRALIA/UK 3.15A 250V T 5×20
USA/CANADA 6.3A 250V T 5×20
JAPAN 6.3A 250V T 5×20

4. COMBOS: TECHNICAL DETAILS|
---|---

COMBO SERIES

|

CMD 102P IV

|

MINI CMD 102P IV

|

MINI CMD 121P IV

|

CMD 121H IV

|

MINI CMD 151P IV

|

CMD NINJA 102P-500 IV

SPEAKER SIZE (INCHES)

|

2X10”

|

2X10”

|

1X12”

|

1X12”

|

1X15”

|

2X10”

WEIGHT KG.

|

20

|

16.5

|

13.3

|

17.9

|

18.5

|

16.4

WEIGHT LBS.| 44.09| 36.37| 29.32| 39.46| 40.79| 36.15
WIDTH MM.| 594| 589| 390| 390| 464| 330
WIDHT INCHES| 23.39| 23.18| 15.35| 15.35| 18.27| 12.99
HEIGHT MM.| 479| 418| 432| 599| 464| 700
HEIGHT INCHES| 18.86| 14.33| 17.01| 23.58| 18.27| 27.40
DEPTH MM.| 475| 364| 357| 464| 480| 430
DEPTH INCHES| 18.70| 16.45| 14.06| 18.27| 18.90| 17.05

PREAMP

|

SOLID-STATE

|

SOLID-STATE

|

SOLID-STATE

|

SOLID-STATE

|

SOLID-STATE

|

SOLID-STATE

POWER AMP| 300W @ 8 Ω /| 300W @ 8 Ω /| 300W @ 8 Ω /| 300W @ 8 Ω /| 300W @ 8 Ω /| 300W @ 8 Ω /
| 500W @ 4 Ω| 500W @ 4 Ω| 500W @ 4 Ω| 500W @ 4 Ω| 500W @ 4 Ω| 500W @ 4 Ω

TROUBLESHOOTING TIPS

THERMAL PROTECTION

SYMPTOM The amp gets hot and shuts down.
PROBABLE CAUSE The amp has overheated, either as a result of inadequate ventilation or a damaged cooling system fan. When the amplifier cools down to a safe level, the amp will automatically restart.
SUGGESTIONS Please verify that the fan is working properly and that the cooling system ports are not obstructed.

CURRENT PROTECTION

SYMPTOM The amp turns on, but there is no signal coming from the speaker/s.
PROBABLE CAUSE Low impedance load (minimum impedance for Markbass amps is 4 ohms), or a bad speaker cable.
SUGGESTIONS Please verify the impedance of the speaker/s connected to the amp. Note that two 4 ohm cabinets, or an 8 ohm and a 4 ohm cabinet, will result in an impedance below 4 ohms. Please check the speaker cable/s. After checking these two things, please turn the amp off and turn it on again.

If the troubleshooting steps outlined above do not solve your problem, please contact your Markbass distributor/dealer for service information. For more TROUBLESHOOTING TIPS, please check the FAQ section on the SUPPORT page of our website at www.markbass.it.