USER’S GUIDE
Guitar Amplifier HEAD Table of Contents: The Front Panel...................................................................................4 The Rear Panel ....................................................................................5 Piggy Back Mounting onto the V212T Speaker Cabinet .................6 Important Information About Tubes and Tube Products A Brief History Of The Tube ..........................................................7 Tube Types and Usage.......................................
Guitar Amplifier HEAD Congratulations! You are now the proud owner of a V-Series V30H Guitar Amplifier Head.
Guitar Amplifier HEAD The Front Panel: 1 2 3 4 5 6 7 1. Input: Connect your instrument here by means of a shielded signal cable. 2. Clean Volume: Use this control to adjust the output level of the Clean Channel. 3. Clean/Overdrive: This switch, when depressed, selects the Overdrive Channel. When this switch is in the out position, the Clean Channel is selected. 4. Overdrive Gain: Use this control to adjust the gain of the Overdrive Channel.
Guitar Amplifier HEAD The Rear Panel: 16 17 15. AC Line Cord (not shown): The grounded power cord should only be plugged into a grounded power outlet that meets all applicable electrical codes and is compatible with the voltage, power, and frequency requirements stated on the rear panel. Do not attempt to defeat the safety ground connection. 16. Footswitch: Use this jack to connect the supplied two-button footswitch for remote control of channel switching and the Boost function.
Guitar Amplifier HEAD Piggy Back Mounting onto the V212T Speaker Cabinet: The V30H amp head is designed to “piggy back” mount onto Crate’s V212T enclosure. The V30H has slide-out mounting hardware which lock onto the posts on the top of the V212T. Loosen the knobs on the posts, slide the amp in place and lock down the knobs.
Guitar Amplifier HEAD Important Information About Tubes and Tube Products: A Brief History Of The Tube: In 1883, Edison discovered that electrons would flow from a suspended filament when enclosed in an evacuated lamp. Years later, in 1905, Fleming expanded on Edison's discovery and created the "Fleming Valve". Then, in 1907, Dr. Lee de Forest added a third component – the grid – to the "Fleming's Valve" and the vacuum tube was a fact of life. The door to electronic amplification was now open.
Guitar Amplifier HEAD Important Information About Tubes and Tube Products (continued): "looser" low-end response and produces more harmonics at mid and high frequencies ("creamier" sound). These differences become more noticeable at higher volumes. The EL84 and 6L6 tubes produce a big low-end thump and have a very good dynamic range. They offer a more traditional "American Rock" sound. The EL84 and 6V6 tubes produce a creamy sound with nice distortion.
Guitar Amplifier HEAD Important Information About Tubes and Tube Products (continued): You can check your preamplifier tubes for microphonics by turning the amplifier on, turning up the gain and tapping lightly on each tube with the end of a pencil or a chop stick (my favorite). You will be able to hear the tapping through your speakers, which is normal. It is not normal for a tube to ring like a bell after it’s tapped. If it does ring then it’s microphonic and should be replaced.
Guitar Amplifier HEAD Important Information About Tubes and Tube Products (continued): Survival Tips For Tube Amplifiers: To prolong tube life, observe these tips and recommendations: • Match the impedance of your speaker cabinet(s) to your amplifier. Improper impedance matching will contribute to early tube degradation and may cause premature tube failure. • Make sure the speaker(s) are properly connected prior to turning on the amplifier.
Guitar Amplifier HEAD System Block Diagram: GUITAR INPUT 12AX7A V1A 12AX7A V1B CHANNEL SELECT 12AX7A V2A 12AX7A V2B OVERDRIVE GAIN TREBLE MID BASS BOOST PRESENCE CLEAN VOLUME PHASE SPLITTER CHANNEL SELECT EFFECTS EFFECTS SEND RETURN OVERDRIVE LEVEL 12AX7A V3A 12AX7A V3B REVERB DRIVE REVERB RECOVERY EL84 V4 EL84 V5 EL84 V6 8 OHM SPEAKER EL84 V7 REVERB LEVEL Declaration of Conformity Manufacturer’s Name: SLM Electronics Corporate Headquarters: 1901 Congressional Drive, St.
Guitar Amplifier HEAD V30H TECHNICAL SPECIFICATIONS: OUTPUT POWER RATING 30 Watts RMS @ 6 % THD, 8 ohm load, 120 VAC SIGNAL TO NOISE RATIO 71dB Typical GAIN Clean 56dB, Overdrive 101dB TREBLE 12dB range @ 6kHz BOOST +10db @ 900Hz MID 10dB range @ 1kHz BASS 8dB range @ 150Hz PRESENCE +8dB @ 10kHz PREAMP TUBES (3) 12AX7A POWER AMP TUBES (4) EL84 POWER REQUIREMENTS 120 VAC, 60 Hz, 35VA 100/115 VAC, 50/60 Hz, 35VA 230 VAC, 50/60 Hz, 35VA SIZE AND WEIGHT 21” W x 7-3/4” H x 8-1/8” D, 25.
