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Resumen del manual
Your Crate amplifier gives you more performance features than ever before; features that you, the musician, have asked for. Your Crate amplifier is an American product, manufactured at our factory in St. Louis, Missouri. Only the finest available components and materials are used in the manufacture of each amplifier. All Crate amplifiers are subject to seven or more inspection and testing steps to assure you of a high quality product. The final test for each amp is conducted by a trained musician with the instrument the amp was designed for. Any unit that does not meet the standards of his discriminating ear will not be passed. Since all Crate products are designed, developed, and manufactured through the cooperative efforts of engineers and professional musicians, the end result is a product that responds to the musician's audio requirements, and a product that will serve your needs for years to come. B40XL TECHNICAL SPECIFICATIONS ©dottpaaS Paimsir Rating 40 watts RMS @ 5% THD 8 ohm Load— 120 VAC line SpssO«®!? SSss arad Rating 12" with 1-1/2" voice cold Power Handling 40 Watts RIMS [L®wC©(n)№@[] ± 10 dB @ 50 Hz Low Midi C@D-atr®fl ± 10 dB @ 200 Hz IHlDglft) MM ComeroD ± 10 dB @ 800 Hz IMSglh C&iniimll ± 10 dB @ 4KHz (Low IBoosfi + 8 dB @ 40 Hz IHlSglhi + 8dB@8kHz Firffi-il/Tiap® CofUQfoD 12 dB boost @ 6 kHz J OdB boost @ 100 Hz Drapaot DmpsdlaiiiKS® 220 He ohms Maximum Braput Signal Lewefl Asespisd 15 volts peak-to-peak Gain® He Hz 48 dB with tones fiat and boost switches off Lora® ©MffipMS Jaete 2.5 volts, peak-to-peak @ full rated output Signal a© 6M®0g® Kau8© 68 dB with gain and volume at" 10", tones flat, boost switches off flBDjpQJiG 1P@w®b- mfsqMSs-emsinies 120 VAC, 60 S- ¡z, 100 watts max. Sbs® amd Weight 21"Hx 19-1/2"Wjs 12-1/2"D lbs. Specifications subject to change without notice. CAUTION: To reduce the risk of electric shock, do not remove chassis. No user serviceable parts inside. Refer servicing to qualified service personnel. CAUTION: This equipment is capable of producing sound pressure levels greater than 110 dB SPL. Continued exposure to such high sound pressure levels can cause permanent hearing impairment or loss, user caution is advised, and ear protection is recommended. OPERATION! INPUT ® ® c Odb 15db GAI I i 10 0 N PRE l SHAPE LOW /A BOOST .1 1 □ h EQUALIZATION I### § 10 0 10 0 10 0 10 U/ - H LOW HIGH OW MID MID HIGH MASTER ■©' Q ° Jim VOLUME ^ 1 1 . c B4L 1 m O 0 ( NE LINE HEAD •— UT IN PHONES 7 ML 3 POWER i i i 1 t i 1 ' M I t 1 t t i 2 3 4 S & 7 a 9 10 11 12 13 14 IS 16 17 froimt panel Fimmms ASM© FyMCTDOOm INPUT SHCTU©^ 1. OR3POJT JACBCs This input accepts a standard 1/4" phone plug and is suitable for any low to iine level signal source such as an electric bass. 2. - 1 SdB DROPQJT JACKS This input also accepts a standard 1 /4" plug but is padded 15dB for hotter inputs such as tape decks or active basses. If both jacks are used, this input is not padded and will be equal to the "QdB" input jack. 3. £@6¥ITR©Ls This control sets the amount of gain for the preamp. A low output instrument or soft playing style requires high gain (5-10 settings) while a high output instrument or hard playing style requires less gain (1-4 setting). Too high of a setting along with boosted tone settings may cause distortion or a harshness of sound. If this is not desired, simply reduce the gain with this control. 4= PRE-SHAPE CONTROL; This is a pre- EQ "master" tone control. With the control set at 1/2, the signal will pass to the Equalization section "flat" (with no modification of tone). As the control is turned clockwise, high frequencies will be boosted and as the control is turned counterclockwise, low frequencies will be boosted. This control could be used to "dial in" a general tone setting which can be fine tuned by the EQ section or to instantly modify an existing EQ setting with one knob. EQUALIZATION SECTBOWI 5. LOW BOOiTs Low frequencies are boosted when this switch is depressed. 6. L0W COWTR0IL: The desired amount of "bottom" or "warmth" may be increased or decreased with this knob. For additional effect, use this control in conjunction with the Low Boost switch (#5) and/or the Pre-Shape control (#4). 7. LOW MIBB CONTROL; This knob will affect the lower harmonic range of the bass. When turned up, it adds a mellow sound by adding more definition to the lower harmonics. When reduced, it creates a hollow, "thin" sound. 8. HIGH MID CONTROLS Boosting this control will give the bass more "edge" in distinguishing notes, especially in fast music passages. Reducing this control enables a more flat, mellow sound. 9. HIGH COWTROLs This control adds "(bite" and "sizzle" to the bass by accentuating only the extreme high frequencies. W. HIGH BOOST SWBTCHs This switch affects the brilliance of the (bass by adding additional "bite" or sharpness. 11. LIMIT INDICATOR LED; The B40XL contains a power amp limiter which automatically limits the sig...