Mark Acoustic AC 101 Скачать руководство пользователя страница 6

INPUTS

The The INPUT JACK (2) connects your instrument to channel 2, and accepts either a balanced XLR input (in case your gui -

tar’s pickup supplies a balanced output) or an unbalanced 

GAIN and MASTER

There are three knobs on the front panel of the AC601/AC101 acoustic amplifier that control the volume of your instrument.

The GAIN (3)(4) control determines how much signal is passed through the preamp stage of the unit, which includes equa-

lization and the effects loop. The MASTER (17) volume regulates how much output comes out of the power amp into your

cabinet.

If playing through the amp causes the blue CLIP (5)(6) light to turn on at all, you should turn down the GAIN (3)(4) control

to avoid distortion.

When you first plug into the amp, start with the GAIN (3)(4) and MASTER (17) controls set at their lowest levels, in other

words turned  all  the  way  counter-clockwise. Then,  turn  your  instrument’s  volume  up  to  its  full  level  and  play  as  hard as

you do in your most aggressive moments, and turn up the GAIN (3)(4) control until the blue light starts illuminating. Next,

back off on the GAIN (3)(4) just enough so that the light stays off as you play. This method will result in the optimal gain

setting for the instrument you’re playing. Different guitars have different output levels, mostly depending on their pickups

and onboard preamp and EQ settings.

Once you’ve set the GAIN (3)(4) level, use your MASTER (17) knob to control the volume of your instrument.

EQUALIZATION

The AC601/AC101 acoustic amplifier is designed to faithfully reproduce the natural sound of your guitar. If you have a good

instrument, very little equalization (EQ)-if any-should be required. Acoustic guitars produce a very wide range of frequen-

cies, and all of them need to be conveyed in order to amplify the true sound of the instrument. 

Since the AC601/AC101 has been designed to give you clear, detailed and musical sound at all frequencies, when the amp

is set “flat”-with all EQ knobs at 12 o’clock-you should hear a very true mirror of the sound of your guitar and its pickup.

However, if and when equalization is required, you will find this amp’s EQ to be powerful and musical.

The LOW EQ (7) (8) control the level of low frequencies. This means that it either boosts or cuts the volume of the frequen-

cies around 40 Hz, to a maximum of 16 decibels, (see the EQ curves on page 10). 

The MID EQ (9) control (available on channel 1 only) boosts or cuts the frequencies around 600 Hz, by as much as 16 decibels. 

4

5

The HIGH EQ (8) control boosts or cuts the high frequencies, by as much as 16 decibels.

VPF FILTER

The AC601/AC101 features a filter that alters the equalization of your signal with specially formulated musical results. The

VPF (10) (Variable Pre-shape Filter) boosts lows (around 35 Hz) and highs (around 10 kHz), and cuts mids at 380 Hz. This

filter can only be applied to channel 2. 

EFFECTS

The AC601/AC101 offers six onboard preset EFFECTS (15) to sweeten your sound: Chorus 1, Room (reverb), Reverb 1, Reverb

2, Hall (reverb) and Chorus 2.

The EFFECT MIX knobs (13) (14) control the balance between the dry signal and the effected signal. With the effect mix con-

trol in  the  “off ”  position,  you  will  hear  no  effect.  At  the  “max”  position,  you  will  hear  only  effect  and  no  dry  signal. You

cannot  select  a  different effect  for  each  channel,  but  you  can  control how  much  effect  is  applied  to  each  channel,  using

the effect mix knobs.

LINE OUT LEVEL

The LINE OUT (16) knob allows you to control how much signal comes out of the LINE OUT output (24) on the rear panel.

This is useful in live situations, when the sound engineer may ask you to provide more or less signal to the PA.

2.2 Acoustic Amplifier Rear Panel

SPEAKER OUT
The AC601/AC101 can be connected to one or two speaker cabinets. The high-quality Neutrik SPEAKON COMBO jack (23) accepts either a
SPEAKON or a The AC601/AC101 delivers 150W of power into an 8 ohm cabinet, or 250W into a 4 ohm cabinet.
By default, the AC601/AC101 head is connected to the speaker cabinet housed in the combo. However, you can either connect the head
to a separate, external cabinet (unplug the 

Содержание AC 101

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Страница 2: ......

Страница 3: ...atures attractive design and extreme reliability all in one impossibly lightweight unit This amp will allow your instrument to speak in its natural voice faithfully conveying your musical ideas to your audience with stunning clarity Your amplifier has passed rigorous product testing and should survive even the toughest of environments on the road in clubs rehear sal halls and concert stages Noneth...

Страница 4: ...try is designed specifically to not color the sound but to faithfully reproduce the unique tonal qualities of whatever instrument is played through it I have worked very closely with many high profile professional musicians around the world to fine tune the Mark Acoustic product line I am confident that these Mark Acoustic amps are now ready to satisfy the needs of acoustic musicians all over the ...

Страница 5: ...mp and an analog power amp which deli vers 250W of power into a 4 ohm cabinet or 150W into an 8 ohm cabinet The AC601 features one custom designed 6 B C neodymium speaker and one HF compression driver The AC101 includes instead one custom designed 10 B C neodymium speaker and one HF compression driver 2 1 Acoustic Amp Front Panel ...

Страница 6: ... you play This method will result in the optimal gain setting for the instrument you re playing Different guitars have different output levels mostly depending on their pickups and onboard preamp and EQ settings Once you ve set the GAIN 3 4 level use your MASTER 17 knob to control the volume of your instrument EQUALIZATION The AC601 AC101 acoustic amplifier is designed to faithfully reproduce the ...

Страница 7: ...the max position you will hear only effect and no dry signal You cannot select a different effect for each channel but you can control how much effect is applied to each channel using the effect mix knobs LINE OUT LEVEL The LINE OUT 16 knob allows you to control how much signal comes out of the LINE OUT output 24 on the rear panel This is useful in live situations when the sound engineer may ask y...

Страница 8: ...olume setting INSERT POINT This jack allows you to insert an external component e g another preamp a compressor etc into the preamplifier chain GROUND LIFT Occasionally when you re playing live and using the LINE OUT 24 the soundman will detect a hum from your amp s signal This is almost always due to a grounding problem related to your power source you will likely eliminate this hum simply by fli...

Страница 9: ...there is no signal going to the compression driver Turned all the way counter clockwise the compression dri ver is at its maximum level 3 1 AC601 AC101 Acoustic Amplifier Phantom 9V XLR Setting The images below show how your amp can be modified to send 9V of phantom power to the XLR input by installing a jumper in the amp Please note that this modification must be made by qualified Markbass servic...

Страница 10: ...igh level 16 dB 5KHz OUTPUTS INSERT POINT Unbalanced Max volyage 25Vpp SEND MIX Balanced Max output 20 Vpp SPEAKER OUT Speakon 1 4 OTHER SPECIFICATIONS DIMENSIONS Heighth 2 8 in 710 mm Depth 10 1 in 256 mm Width 10 87 in 276mm can be extended to standard rack size with optional rack ears WEIGHT 4 63 lbs 2 1 Kg OUTPUT POWER 150W RMS 8ohm 250W RMS 4ohm POWER REQUIREMENT 100V 120V 230V 240V 50 60Hz v...

Страница 11: ...55 Hz to 18 KHz 45 Hz to 20 KHz CABINET SENSITIVITY dB SPL 98 101 CABINET IMPEDANCE 8Ω 8Ω REFLEX Rear Rear WEIGHT KG 8 8 10 5 WEIGHT LBS 19 4 23 15 WIDTH MM 313 353 WIDTH INCHES 12 32 13 90 HEIGHT MM 331 367 HEIGHT INCHES 13 03 14 45 DEPTH MM 285 367 DEPTH INCHES 11 22 14 45 PREAMP Solid state Solid state POWER AMP 150 8Ω 250 4Ω Analog Analog POWER SUPPLY All models are equipped with custom design...

Страница 12: ...6 Acoustic Amplifier Schematics 10 ...

Страница 13: ...11 7 Acoustic Amplifier Filter and EQ Graphs ...

Страница 14: ...ions d emploi 1 Lire ces instructions 2 Conserver ces instruction 3 Suivre tous les conseils d utilisations 4 Suivre toutes les instructions 5 Ne pas utiliser cet appareil au bord de l eau 6 Nettoyer uniquement avec un chiffon humide 7 Ne pas bloquer le systéme de ventilation Installer conformément aux instructions du fabricant 8 Ne pas installer l appareil prés d une source de chaleur tel qu un r...

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Страница 16: ...Produced Distributed by PARSEK srl Italy 66020 San Giovanni Teatino CH Via Aterno 44 Tel 39 08544 65 705 Fax 39 08544 07 399 www markbass it info markbass it ...

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