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8

Using the Digital Effects

You can add of splash a delay and chorus or gallons 
of lush reverb to either input channel using one of 
the Acoustic Ribbon’s 100 on-board, 24-bit digital 
effects. The effects section includes a SELECT control 
with a bright, dual seven-segment LED display to dial 
up the effects preset, plus a LEVEL control to adjust 
the amount of effects you want to hear.

•   Assign the effects on Channel 1 by setting the EFX 

ON/OFF switch to the IN position. 

•   Next select the desired effect by using the SELECT 

control. The Effects presets are arranged in logical 
banks to help you keep organized. Each group 
includes 10 presets in the following categories; 
HALL, PLATE, CHORUS, SPRING, ECHO, ECHO2, 
TAPE, MULTI EFX, VOCAL and PERFORMANCE. You 
can dial the control clockwise to advance through 
the effects preset list, or turn it counter-clockwise 
to descend through the preset list. For this exer-
cise, let use a large room reverb. Use the SELECT 
control to choose preset number 08. 

•   Now, slowly raise the effects LEVEL until you add 

the desired amount of HALL reverb to your acous-
tic.

•   If you want to add the EFX to the MIC or LINE 

input on Channel 2, engage the EFX ON/OFF 
switch on Channel 2.  

Since the AC150's 5-inch full range speakers are 
arranged in stereo pairs, you can hear stereo pan-
ning on some of the effects. You can find a complete 
list of the 100 effects presets on page 16 of this 
manual.

You can also use an optional footswitch, like the 
Hartke FS1, and the rear panel FOOTSWITCH jack to 
remotely turn the EFX on and off. 

If no footswitch is connected to the FOOTSWITCH 
jack, the red EFX LED will always illuminate indicat-
ing the Digital Effects are on, regardless of the posi-
tion of the channel EFX switch. The EFX LED will turn 
off only when the effects are by-passed using the 
footswitch.

Setting Up and Using Your Hartke AC75 and 
AC150 Acoustic Amplifier

Summary of Contents for AC150

Page 1: ... Acoustic Instrument Amplifier ...

Page 2: ...ecep tacles and at the point at which they exit from the unit 11 Unplug this unit during lightning storms or when unused for long periods of time 12 Refer all servicing to qualified personnel Servicing is required when the unit has been damaged in any way such as power supply cord or plug damage or if liquid has been spilled or objects have fallen into the unit the unit has been exposed to rain or...

Page 3: ...eit aussetzen Um die Gefahr eines Stromschlags zu verringern sollten Sie weder Deckel noch Rückwand des Geräts entfernen Im Innern befinden sich keine Teile die vom Anwender gewar tet werden können Überlassen Sie die Wartung qualifiziertem Fachpersonal Der Blitz mit Pfeilspitze im glei chseitigen Dreieck soll den Anwender vor nichtisolierter gefährlicher Spannung im Geräteinnern warnen Diese Spann...

Page 4: ...bjeto dentro de la unidad si esta ha quedado expuesta a la lluvia o la humedad si no funciona normalmente o si ha caído al suelo ATTENZIONE per ridurre il rischio di incendio o di scariche elettriche non esponete questo apparecchio a pioggia o umidità Per ridurre il pericolo di scariche elettriche evitate di rimuoverne il coperchio o il pan nello posteriore Non esistono all interno dell apparecchi...

Page 5: ...0 3 SAMSON 1 800 372 6766 Fax 631 784 2201 www samsontech com Table of Contents Introduction 2 Hartke AC75 and AC150 Acoustic Amplifier Features 3 Guided Tour Front Panel 4 Guided Tour Rear Panel 5 Setting Up and Using Your Acoustic Ribbon Amplifier 6 11 AC75 and AC150 Set ups 12 AC75 and AC150 Effects Presets 16 AC75 and AC150 Specifications 17 ...

Page 6: ...ternal bracing Hartke engineers have applied the same careful approach in the selection of the critical components and with the internal construction to produce a sound that is truly unique to the Acoustic Ribbon amplifiers The full range 5 inch drivers provide a smooth and even frequency response without the low frequency resonance associated with larger drivers The ribbon transducer provides swe...

Page 7: ...nd Piezo inputs on Channel 1 and XLR mic and RCA line inputs on Channel 2 You can add a splash of delay and chorus or gallons of lush reverb to either input channel using one of the Acoustic Ribbon s 100 on board 24 bit digital effects The effects section includes a SELECT control with a bright dual seven segment LED display to dial up the effects presets plus a LEVEL control to adjust the amount ...

Page 8: ... 2 Used to add effects to the signal connected to the Channel 2 input 12 FREQUENCY Notch Filter Used to set the center frequency for the Notch Filter 13 DEPTH Notch Filter Control Knob used to control the amount of attenuation applied by the Notch Filter 14 GRAPHIC EQUALIZER These sliders allow you to draw the tonal response of the system by adding 12 dB of boost or attenuation to seven different ...

Page 9: ... and effects is sent out of this 1 4 inch jack and can be used with the AMP IN jacks as an effects loop I AMP IN LEFT jack A connection directly into the left side power amplifier that can be used with the PREAMP OUT jack as an effects loop J AMP IN RIGHT jack A connection directly into the right side power amplifier that can be used with the PREAMP OUT jack as an effects loop AC75 Rear Panel A AC...

Page 10: ...e a battery use the PIEZO or passive input 4 Before we turn up the volume let s set the Acoustic Ribbon controls to the default setting for getting good sound quickly On Channel 1 set the GAIN knob to 3 the nine o clock position and set BASS and TREBLE controls to 0 the twelve o clock position On Channel 2 set the GAIN knob to 0 fully counter clockwise position Set the main VOLUME control to 0 ful...

Page 11: ...10kHz Setting the BASS and TREBLE knobs to 0 twelve o clock position produces a flat frequency response To add more lows to the input connected to Channel 1 raise the BASS control above 0 and to reduce the low frequency response lower the BASS control to a setting below 0 To add more highs to the input connected to Channel 1 raise the TREBLE control above 0 and to reduce the low frequency response...

Page 12: ...ter clockwise to descend through the preset list For this exer cise let use a large room reverb Use the SELECT control to choose preset number 08 Now slowly raise the effects LEVEL until you add the desired amount of HALL reverb to your acous tic If you want to add the EFX to the MIC or LINE input on Channel 2 engage the EFX ON OFF switch on Channel 2 Since the AC150 s 5 inch full range speakers a...

Page 13: ... to connect a microphone first start by turning the main VOLUME all the way down Use a low impedance mic and make the connection with a standard XLR mic cable to the to the Channel 2 XLR mic input located on the front panel Next raise the main VOLUME to about 6 7 or the 1 to 3 o clock position Now slowly raise the GAIN until you add the desired amount of Mic level with your acoustic Keep in mind t...

Page 14: ...e of your instrument By using the NOTCH FILTER you can get the maximum level out of your amplifier without feedback The NOTCH filter has two controls FREQUENCY and DEPTH The FREQUENCY control is used to set the specific frequency that the filter will cut from 55 to 720 Hertz The DEPTH control is used to set the amount of cut accruing at the FREQUENCY point The higher the setting the more cut Follo...

Page 15: ...gnal from a acoustic pre amp or drum machine Connect the CD player or other Line level device to the LINE Input using a standard RCA cable If you connected a signal to the Channel 2 MIC input you will want to use the volume control on the CD player or other Line level device to set the balance between the track and your acoustic So start with the volume control all the way down and slowly raise it...

Page 16: ...s equalizer and effects from the AC series preamp If you want send the signal of your instrument directly to the PA system set the PRE POST switch to PRE If you want the signal with the sound of the tone controls equalizer and effects set the PRE POST switch to POST The AC150 there features a LEFT and RIGHT DIRECT OUT You can use the LEFT and RIGHT DIRECT OUTs to maintain the stereo effects produc...

Page 17: ...ange speakers and the right side of the effects will be heard in the right pair of 5 inch full range speak ers Using a standard shielded instrument cable connect the AC series rear panel PRE AMP OUT to the input of your signal processor Now use a standard shielded instrument cable to connect the output of the signal processor to the AC series AMP IN connector located on the rear panel If you are u...

Page 18: ...B of cut or boost in five narrow frequency bands The five band graphic equalizer provides seven sliders each corresponding to a single narrow frequency band 100Hz 315Hz 1kHz 3 5kHz and 10kHz This allows you to draw the desired tonal response of your system When a slider is in its center position 0 it has no effect When it is moved above center towards 12 the particular frequency area is being boos...

Page 19: ...ker The specific EQ you will apply to your Acoustic signal is very much dependent upon your particular instrument and personal taste and playing style However here are a few general suggestions For that super warm or mellow sound boost low frequencies slightly while attenuating the highest ones leave mid range frequencies flat or slightly attenuated as shown in the illustration on the right To rem...

Page 20: ...mS Delay high Feedback che 46 550mS Delay low Feedback che 47 650 325mS Delay cross Feedback che 48 650mS Delay high Feedback che 49 650mS Delay low Feedback che 50 flanger reverb che 51 flanger short reverb che 52 lt flanger med reverb che 53 med flanger med reverb che 54 slo flanger long reverb che 55 flanger long reverb che 56 stereo flanger med reverb che 57 stereo flanger long reverb che 58 whip flang...

Page 21: ...adphone St TRS 1 4 phone Direct Output Male XLR Speaker System Impedance Ohms 4 Ohms Impedance Low Frequency Drivers AC75 2 x 5 Special Design Hartke full range 8 ohm 25 watt Drive Unit AC150 4 x 5 Special Design Hartke full range 8 ohm 25 watt Drive Unit High Frequency Driver AC75 2 x 4 inch planer ribbon on a 5 x 7 waveguide AC150 2 x 4 inch planer ribbon on a 7 x 7 waveguide Dimensions AC75 Hei...

Page 22: ...18 Notes ...

Page 23: ......

Page 24: ...Hartke 45 Gilpin Avenue Hauppauge New York 11788 8816 Phone 1 800 3 SAMSON 1 800 372 6766 Fax 631 784 2201 www samsontech com ...

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