User manual CARVIN PB200 II

[. . . ] This symbol is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. LIMITED WARRANTY Your Carvin product is guaranteed against failure for ONE YEAR unless otherwise stated. Carvin will service and supply all parts at no charge to the customer providing the unit is under warranty. Carvin assumes no responsibility for horn drivers or speakers damaged by this unit. This warranty does not cover, and no liability is assumed, for damage due to: natural disasters, accidents, abuse, loss of parts, lack of reasonable care, incorrect use, or failure to follow instructions. [. . . ] There are many variables as you can hear, so write down some of the settings for future reference. Unlike normal mid sweeps, Carvin's mid sweep system is tailored to gradually lower the gain in the harsher frequency ranges around 1k Hz. However, with the pre-shape filter switches already in your amplifier, you may not require the use of the mid sweep feature. 2. VOLUME CONTROL The VOLUME control adjusts the overall volume of the amplifier. Depending on the output of your bass guitar's pickups, the volume control will be set at different positions. Because of the amps extra gain to compensate for low output pickups, you can easily get the amps full output at "3" on the dial with high output pickups, so adjust the volume accordingly. Likewise, if you add more boost from the LOW pre-shape switch or increase the BASS tone control, you can easily distort the amp unless you reduce the volume. The setting of the volume control does not affect the compressor or gate settings. 6. What it basically does is reduce (or compress) the volume of the incoming signal to conform to a preset maximum output level. This describes the COMP knob in the full-clock wise position where it functions as a limiter. As the knob is turned back (counter clockwise) the compressor lets a larger and larger percentage of the incoming signals to pass through. When the knob reaches the off position (full counter clockwise) the ratio is 1:1 were all the input signal passes through the compressor. The advantages of a compressor is to increase the overall level of playing (or the average level) and not have peaks or other sudden loud parts (transients). For example, in slap bass playing, the plucked notes can put out peaks that could distort the amplifier at normal playing volumes. On the other hand, if the amplifiers volume was adjusted for these peaks, the rest of the notes would be too quiet to hear. Now, when the compressor is adjusted to where the indicator LED comes on when the peaks are present, the amplifier can be played louder and still reduce the peaks without distortion. It's like having someone constantly and instantly re-adjusting the volume of the amplifier to prevent distortion when the peaks occur. 3. PRE-SHAPING SWITCHES The pre-shaping switches are preset boost and cut equalization settings to enhance your sound. · LOW - With this switch in, the result is a strong punchy low end starting at 60Hz. · MID - The mid switch is a mid cut switch in both switch positions. With the mid pushed in, the cut is centered around 250Hz which enhances the deep bass and leaves the mids intact. For the slap player and anyone who wants tight lows and bright mids and highs this is the desired position. [. . . ] RETURN JACK (EFFECTS LOOP) The RETURN jack completes the effects loop in conjunction with the SEND jack. This jack is designed to recieve signals from an external effects processor. When something is plugged into this jack it goes directly into the power amp portion of the bass amplifier and breaks the connection between the bass preamp and the internal power amp. 13. SPEAKER OUTPUT JACK(S) The PB100 features 2 speaker output jacks designed for a single 8 speaker or a multiple of speakers that are wired for a total impedance of 4 ohms. [. . . ]