Mesa/Boogie Bass Prodigy Скачать руководство пользователя страница 14

PAGE 9

  MULTI-WATT ™ Switchable Power:  FULL / HALF PWR  

   As you might have guessed, this switch allows you to select be-

tween two distinct ranges of power, enabling you to better tailor the output response of the PRODIGY to the preamp sounds you have 

dialed up and/or the venue you’re playing in.  In some cases you will want to use it to create an appropriate 
volume level, while in other scenarios to further authenticate a certain sound, style or vibe. 

While the two settings – FULL and HALF – refer to both power rating and available headroom, each of 
these also has an effect on the Tone and personality of the sound.  You’ll quickly learn to use these choices 
as part of your Tone palette along with the rotary Tone controls and VOICE Feature to craft sounds that are 
appropriate in volume and clarity as well as authentic in shape and feel.

FULL incorporates all four power tubes to create the maximum power and headroom – approximately 250 
watts RMS of tube power – that sounds and feels more like 500.  This is the choice any time you need the 

maximum clean transient attack, clarity and headroom.  FULL will also track complex rhythmic passages with the most accuracy as it 
has the quickest recovery time between notes.  Tone-wise, FULL has the best balance of punch and authority, sparkle and detail and 
creates a “Hi-Fi” experience, particularly when used with the BRIGHT input selection.  Tight delivery and tracking in the low mids and 
bottom end is beautifully integrated with top end detail and angelic sounding upper harmonics. Up here the air is fresh and inspiring 
as only an all-tube circuit can create.

HALF PWR utilizes two of the four KT88s to provide approximately 125 watts of sweet, tube power.  This option has a less shim-
mering top end, warmer detail and a little less emphasis on midrange punch. HALF can be pushed into a furry clip in medium size 
venues for added Rock attitude or for an old school R&B sound that can meet lower to medium headroom requirements. HALF is the 
perfect Studio power mode.  Clean enough, but not too clean.  It makes up, in personality and color, what it lacks in brute power.  It 
also can save you money on tube replacement costs.  By using the HALF position for your applications that don’t require maximum 
output and headroom, you can lengthen the interval between re-tubing if you employ power tube rotation (swapping the ones used in 
HALF Power with the ones that remain in STANDBY during HALF Power operation).  If you do end up using HALF for much of your 
playing, you can rotate the “unused” tubes and get twice the Tone-full life out of a set of output tubes.  (See the TUBE TASK CHART 
in the Rear Section of this Manual to identify the tubes in use during HALF Power Operating Mode).

NOTE: When using the HALF power setting, to obtain the maximum headroom and power and retain tight, punchy attack character-
istics, move an 8 Ohm speaker cabinet to the 4 Ohm SPEAKER OUTPUT on the Rear Panel.  (See the SPEAKER OUTPUT section 
later in the manual for more details and options on speaker connections in HALF Power.)

However you decide to utilize the PRODIGY’S Multi-Watt™ Switchable Power, it adds a level of versatility that’s hard to beat in Tone, 
adaptability and authenticity.  Be sure to experiment enough to learn the personalities, applications and boundaries of these classic 
power choices so that you can apply them quickly and appropriately to your style and your musical endeavors.

  PRE/POST: D.I. OUTPUT SELECT  

   This switch toggles the output signal at the D.I. OUTPUT between a POST signal – 

where the entire preamp and control settings affect the sound – and a PRE signal – where the instrument signal is fed directly to the 

D.I. OUTPUT, bypassing the preamp and tone controls.

PRE is the direct sound of your instrument before it goes through the preamp.  In this setting, the controls 
will not affect the signal at the DIRECT OUTPUT.  The PRE setting is useful for large venues when the 
sound you have dialed up for your optimum stage tone might have too much low end for the front of house 
engineer to balance through a large PA where there are subs employed.

POST gives you the entire preamp signal including INPUT SELECT, Tone Controls, the VOICE Mode se-
lection and processing in the Effects Loop.  POST is appropriate for recording situations where you want 
to capture the closest thing to what you are hearing when you play, or live situations where the sound 

engineer requests your “stage sound” as a Direct feed to the front of house.

 THE CONTROLS 

(Continued) 

 

MASTER

FULL

HALF PWR

MUTE

SIL. REC.

P

L

A

Y

D.I.

LEVEL

D.I. LIFT

GROUND

D.I. PRE

POST

Four:88

Содержание Bass Prodigy

Страница 1: ...Owner s Manual THE HOME OF TONE...

Страница 2: ...wn Your reward is that you are the new owner of an amp bred of fine all tube heritage benefiting from the many pioneering and patented Mesa circuits that led to the refinement of your new model We fee...

Страница 3: ..._________________________________________________________ 11 STANDBY SWITCH__________________________________________________________________________________ 11 REAR PANEL AC MAINS FUSE FUSE RATING AN...

Страница 4: ...y exit from the apparatus Only use attachments accessories specified by the manufacturer Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qu...

Страница 5: ...nnections Do not use excessive force when handling buttons switches and controls Do not use solvents such as benzene or paint thinner to clean the unit Always connect to an AC power supply that meets...

Страница 6: ...Stanley Clark Jack Blades Michael Anthony Blasko and Bootsy Collins are but a few of the international stars that put the 400 center stage to anchor the band during its 20 year build cycle Those iconi...

Страница 7: ...ed by the same Front Panel LED triggered by the mini toggle MUTE PLAY SILENT RE CORD switch Red LED ON MUTE The SILENT RECORD setting allows you to safely mute the signal at the Power Amp and use the...

Страница 8: ...START PROCEDURE When powering up your PRODIGY from cold ALWAYS follow this Start Up Procedure We have found the currently available KT88s require substantially more time than 6L6s or EL34s to warm up...

Страница 9: ...and delivers many of the characteristics of several different manufacturer s iconic amplifiers in one simple to use control Use the VOICE Control to take a broad aim at the sound playing style you are...

Страница 10: ...t setting The NORMAL input is also a great choice if your bass or cabinet or both leans toward being a little on the bright side or if you find the Prodigy to sound bright with other elements of your...

Страница 11: ...ASS control is actually a gain and frequency control all rolled into one with the Q center at 55Hz As mentioned above though it is centered here frequencies harmonics in both low and high direc tions...

Страница 12: ...ity associated with a traditional passive TREBLE control The active TREBLE control completes the rotary tone control string to create a powerful and extremely accurate network to use as your fundament...

Страница 13: ...ry sensitive The MASTER allows you to set the preamp s GAIN control across a wide range of input headroom possibilities from completely clean to tube overdrive and compensate for these extremes giving...

Страница 14: ...your applications that don t require maximum output and headroom you can lengthen the interval between re tubing if you employ power tube rotation swapping the ones used in HALF Power with the ones t...

Страница 15: ...ce whenever interfacing with Consoles whether Recording or Live Sound to ALWAYS begin your set up regimen by zeroing out the D I LEVEL control BEFORE flipping the POWER switch to the ON position This...

Страница 16: ...ool your amp down and put it in an idle state during set breaks This is actually easier on the tubes than turning the POWER completely off only to fire it back up again 15 minutes later The shock of i...

Страница 17: ...PAGE 12 REST AREA...

Страница 18: ...f the speaker jacks For this system to be totally ef fective you must insure that the plug is FULLY inserted into the amplifier and that the other end of the speaker cable is also connected to your ca...

Страница 19: ...RETURN EFFECTS LOOP NOTE To avoid any loud and potentially dangerous pops and noises set the amp to Standby before connecting or disconnecting any effects to the Send or Return jacks This will prevent...

Страница 20: ...ks with an external master switching device or a single tip to ground on off latching footswitch NOTE Use shielded audio cable for connecting the TUNER Output to an external tuner SLAVE This jack is t...

Страница 21: ...ures proper loading of the Output Transformer and Tubes For more ideas and instruction on connecting your cabinets properly see the diagrams in the Rear of this Manual on SPEAKER CONNECTION But first...

Страница 22: ...et into one 4 OHM SPEAKER OUTPUT 4 Ohm Cabinet into the 4 OHM SPEAKER OUTPUT SPEAKER OUTPUT AUTO MUTE FUNCTION Your PRODIGY has built in Output Transformer protection against a No Load scenario in the...

Страница 23: ...he D I POST Position However the final output level that appears at the D I OUTPUT jack is set by the D I OUTPUT control on the Front Panel The overall range of signal available is optimized for Conso...

Страница 24: ...GROUND FULL HALF PWR D I PRE POST B R I G H T A C T I V E 3 2 4 5 1 Four 88 MUTE SIL REC P L A Y SAMPLE 4 Rock Growl NORMAL INPUT POWER ON ON STANDBY D I LEVEL SOLO GAIN BASS MID TREBLE VOICE MASTER...

Страница 25: ...TREBLE VOICE MASTER PLAY MUTE D I LIFT GROUND FULL HALF PWR D I PRE POST N O R M A L A C T I V E 3 2 4 5 1 Four 88 VINTAGE INPUT POWER ON ON STANDBY D I LEVEL SOLO GAIN BASS MID TREBLE VOICE MASTER P...

Страница 26: ...de our designer s sweet spot are unnecessary and usually undesirable unless you like paying a tech to re set your amp s bias voltage But KT 88s are different and sampling them from various suppliers r...

Страница 27: ...is also printed on the chassis top Tube Deck and consists of the following steps SET BIAS For Non Technicians 1 Set the BIAS SWITCH located on the upper Rear Tube Deck to OPERATE Make sure the amp is...

Страница 28: ...higher resistance for example 8 ohm output into 16 ohm cabinet a slightly different feel and response will be eminent A slight mismatch can provide a darker smoother tone with a little less output an...

Страница 29: ...ve side of Speaker A to the Negative side of Speaker B COMBINATION OF SERIES PARALLEL This is really just two sets of Series wired speakers connected in Parallel This is how you maintain a consistent...

Страница 30: ...CHEMES Amplifier to Speaker Cabinets 4 OHM 8 OHM 16 OHM Partial back view of amplifier 16 Ohm Cabinet 4 OHM 8 OHM 16 OHM Partial back view of amplifier 16 Ohm Cabinet SAFE MISMATCH 8 OHM 4 OHM 4 OHM P...

Страница 31: ...ack view of amplifier SAFE MISMATCH 8 OHM Partial back view of amplifier SERIES BOX 8 Ohm 4 Ohm 4 Ohm 4 Ohm Cabinet 4 Ohm Cabinet 4 OHM 4 OHM 8 OHM Partial back view of amplifier PARALLEL BOX 8 Ohm 16...

Страница 32: ...hm 8 Ohm Cabinet 10 SAFE MISMATCH 12 4 OHM 4 OHM Partial back view of amplifier 16 Ohm Cabinet 16 Ohm Cabinet 11 8 OHM 8 Ohm Cabinet 16 Ohm Cabinet 16 Ohm Cabinet 4 OHM 4 OHM 8 OHM Partial back view o...

Страница 33: ...et 8 Ohm Cabinet SERIES BOX 16 Ohm 8 Ohm 8 Ohm 16 Ohm Cabinet 13 SAFE MISMATCH WIRING SCHEMES Amplifier to Speaker Cabinets 4 OHM 4 OHM 8 OHM Partial back view of amplifier 16 Ohm Cabinet 16 Ohm Cabin...

Страница 34: ...You ll probably be successful with much less effort than is required to disconnect everything and haul the unit to a technician who will basically perform the same simple tests If the tubes are still...

Страница 35: ...possibly damaged Pre amp tubes don t normally wear out as a rule Therefore it is not a good idea to change them just for the sake of changing them If there isn t a problem don t fix it If there is no...

Страница 36: ...PAGE 31 NOTES...

Страница 37: ...INFO MESABOOGIE COM BEFORE CHANGING TUBES FLIP POWER STANDBY SWITCH TO OFF INPUT JACK 12AX7 V3 12AX7 V2 12AX7 V1 KT 88 V7 KT 88 V6 KT 88 V5 KT 88 V4 SET BIAS LED TRIM OPERATE FRONT OF CHASSIS TUBE REP...

Страница 38: ...VOICE 4 OHM 8 OHM 4 OHM SEND RETURN POWER ON ON STANDBY D I LEVEL SOLO GAIN BASS MID TREBLE VOICE MASTER D I LIFT GROUND FULL HALF PWR D I PRE POST CAUTION WARNING h 5 A SLO BLO 120 V 60 Hz 6 A CAUTI...

Страница 39: ......

Страница 40: ...09 20 13...

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