.JPG) AUDIO
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PRIMAL SCREAM PS-130 GUITAR HEAD |
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| MUSIC - It gives us the
ability to express human emotion ranging from mellow and sophisticated
jazz to the most primal rock and roll. Primitive man had only his voice
to scream out his rage, but today's guitarists quest for a voice to
express their own primal emotions. Hand built in the USA the Primal
Scream 130 tube amplifier is a raging, screaming entity giving a modern
voice for the guitarist to express emotions that have been with us since
the dawn of man. Emotions we all instinctively respond to. It's three
channels are each voiced for maximum flexibility of tone and it contains
all features needed to deliver these tones in a stylish roadworthy
package. CHANNELS: Each of the three channels feature three band EQ and a distinctive voicing: The Clean Channel has plenty of warmth in the lows and mids and a vibrant top end that cuts through where needed. It is quickly being acclaimed by many players as the clean sound they have been looking for. The Rage Channel has optimized crunch for classic rhythm playing and enough gain for classic style lead playing. This channel responds well to your guitar's volume control .Back it down a little and the guitar goes from distorted to semi distorted. Back it down a lot and you can play clean. It is truly in the style of a Plexi AC/DC vibe. The Scream Channel has over the top Hi gain suitable for aggressive modern lead and rhythm playing. All the sustain and harmonics you could want are right at your fingertips and they respond dynamically to your playing. Vary the intensity of your picking and you can vary your sound. This channel passes the true test of a Hi gain channel, you can switch pickups on your guitar and actually tell you have made a change. Practicing at low levels is not a problem either. The Scream channel has enough gain to maintain its sustain and harmonic complexity even at the quietest levels. POWER AMP: Four EL34 tubes together with oversized transformers produce in excess of the usual 100 watts found with most four tube power stages. The oversize transformers deliver wider frequency response creating more authoritative lows and clearer highs. For further refinement the front panel Global Bass Throb and Presence controls allow further tailoring of the frequency extremes. The Bass Throb gives up to 10 db of boost to the 100hz region, highly useful for modern detuned music, this can make your low strings move your pants legs. This control also is great for restoring lows lost when practicing at bedroom quiet levels. The Presence control boosts or cuts the frequency region above where the channel Treble controls are set. Protection to the power amps internal componentry against damage from output tube failure includes ceramic tube sockets and strategically placed fusible resistors. The output tube bias circuitry contains both bias and balance pots. Setting the balance pot when biasing tubes allow a matched set of tubes to truly perform as matched because any circuitry inequities that skew tube matching on either side of the push-pull circuit can be adjusted out. This improves touch sensitivity, bass response and harmonic balance. If desired the amp can be run with 6L6 tubes instead of EL34's by making a jumper change inside the amp and rebiasing. ONBOARD EFFECTS: The Scream 130 contains an onboard Digital Reverb and Delay effects module. One effect can be assigned to each channel. For example reverb can be assigned to the Clean Channel and Delay to a distortion channel. Then, when the channels are selected the amp will go from clean with reverb to distortion with delay by pushing only one footswitch. No more tap dancing on pedals while trying to play. There is also a master kill switch on the foot pedal for the internal effects. EFFECTS LOOP: If there is a feature on most guitar amps that can invoke a primal scream from a guitar player it is the effect loop. It seems that as soon as effects are interfaced sound quality is never what it was before hooking in the effects. We designed the Scream 130 effects loop to be as sonically transparent as possible with low impedance drive and high impedance return to better match a variety of effects devices. There are send and return level pots and a loop level switch to maximize level interfacing with effects. Perhaps its most important feature is that the effects loop is switchable to parallel mode so your dry signal never has to leave the amp and be subject to degradation by an external effect. For example, if a delay pedal is hooked into a series loop there is only one signal path so the signal must leave the amp at the send jack be processed in the delay pedal where the ratio of wet to dry is set. The entire signal, both dry and delay are subject to the sound quality of the pedal itself and further degradation occurs to the signal through level and impedance mismatches. In a parallel loop the pedal is set to 100% effect and returns only the delays which are mixed back with the dry signal by the return circuitry. The dry signal never leaves the amp so its sound does not change. FOOTSWITCH: Included with the Scream 130 is a five button Footswitch with LED indicators for each function. Access to any channel requires only one footswitch press. A master internal effects switch and control for the secondary master volume are included also. The footswitch has a roadable, powder coated, long lasting steel chassis and the footswitches are high quality individually mounted and hard wired to the internal circuitry. This, while more expensive to produce eliminates the problem PC board mounted switches have when they break their solder joints due to stress and vibration and then stop working. A detachable and easily replaceable 25 foot computer style cable is included eliminating the stress and eventual failure of a hardwired cable which will eventually fail where the cable enters the pedal housing. OVERALL CONSTRUCTION: The amp is built on a steel chassis for strength and better noise shielding capability than aluminum. Our cabinets are covered with Primalskin covering that will not tear. Internal components are high quality and all audio signal cables are made from Mogami studio quality cable. Many amps today are designed for ease of construction and economy. Unfortunately this does not increase reliability and since little thought is given to ease of servicing, repair costs become higher and the amp often can not be restored to factory condition. Primal goes the extra mile, integrating a philosophy of ease of service and long term reliability. The Scream 130 is comprised of modular units that are easily replaced for servicing. By replacing the entire problem PC board rather than repairing at the component level, the problem area is eliminated and the amp is restored to factory spec. In regard to long term reliability much thought has been given to component mounting. Large devices are bolted down in addition to soldering so vibration will not cause them to come loose over time. Everything in the Scream 130 chassis was looked at and then looked at again in terms of long term reliability. It doesn't matter how great your amp can sound if it makes no sound when you go to play it. We invite you to take a trip to your nearest Primal dealer, grab a guitar and channel your most primal rage into a Scream 130. . But be forewarned!!!!! It is a trip to an emotion buried deep inside yourself that has been waiting to be released for thousands of years. |