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                        VX2515
VX2510
HA2500 2
HA2500 2
250 WATT 1 X 15” BASS COMBO
250 WATT 2 X 10” BASS COMBO                                                                                                                                                                                                                                                                                                                                                                                                                             
                    
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                        Introduction   2 Features   3 Guided Tour    	 Front	 Panel		 	 4-5 	 Rear	 Panel	 6-7	 Setting Up and Using the VX2510 & VX2515    8-9 About Equalization   10-11  About Compression   12 Appendix A: Caster Installation   13 Appendix B: Block Diagram   14 Appendix C: Changing the VX2510 & VX2515 Voltage   15 Specifications   16 Copyright	2005	-	2008,	Samson	 Technologies	Corp. Printed	June,	2008	v1.1 Samson	 Technologies	Corp. 45	Gilpin	Avenue Hauppauge,	New	 York	11788-8816 Phone:	1-800-3-SAMSON
                    
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                        Introduction Congratulations	 on	 purchasing	 the	 Hartke	 VX2510	 &	 VX2515	 Bass	 Amplifier!		 Although	 this	 unit	 is	 designed	 for	 easy	 operation,	 we	 suggest	 you	 first	 take	 some	 time	 to	 go	 through	 these	 pages	 so	 you	 can	 fully	 understand	 how	 we’ve	 implemented	 a	 number	 of	 unique	 features.	 The	 VX2510	 &	 VX2515	 combos	 feature	 tH	 HA2500	 amplifer	 providing	 250	 watts	 of	 power	 to	 the	 built-in	 2-way	 bass	 speaker	 system.	 With	 that	 kind	 of	 power	 an
                    
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                        Features The	 Hartke	 VX2510	 &	 VX2515	 bass	 amplifier	 offers	 all	 the	 newest	 concepts	 in	 bass	 amplification.	 Here	 are	 some	 of	 its	 main	 features: •	 Power	 to	 spare	 —	 The	 VX2510	 &	 VX2515,	 a	 full	 250	 watts	 delivered	 to	 its	 internal	 4	 ohm	 speaker	 system.	 •	 Internal,	 2-way	 bass	 speaker	 system	 including	 two	 custom	 design	 10-inch	 low	 frequency	 drivers,	 plus	 1-inch	 high	 frequency	 compression	 driver	 in	 the	 VX2510	 and	 custom	 design	 15-inch	 lo
                    
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                        Guided Tour - VX2510 & VX2515 Front Panel 4      1    HA2500 2   1.  Passive Input jack	 -	 If	 your	 bass	 guitar	 has	 passive	 circuitry,	 connect	 it	 to	 the	 Model	 2500	 here.	 This	 standard,	 1/4”	 unbalanced	 jack	 provides	 a	 high	 impedance	 (100	 k	 Ohms)	 input	 sensitivity	 of	 20	 millivolts. 2.  Active Input jack	 -	 If	 your	 bass	 guitar	 has	 active	 circuitry,*	 connect	 it	 to	 the	 Model	 2500	 here.	 This	 standard,	 1/4”	 unbalanced	 jack	 provides	 a	 high	 impedance	 
                    
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                        Guided Tour - VX2510 & VX2515 Front Panel 5.  Compression control	 -	 This	 determines	 the	 amount	 of	 compression	 (peak	 signal	 reduction)	 by	 simultaneously	 adjusting	 both	 threshold	 and	 compres- sion	 ratio	 (which	 ranges	 from	 2:1	 to	 infinity	 [limiting]).		 At	 the	 fully	 coun- terclockwise	 “Off”	 position,	 the	 circuitry	 is	 bypassed	 and	 no	 compression	 is	 applied	 (the	 knob	 clicks	 when	 set	 to	 the	 “Off”	 position).		 As	 the	 knob	 is	 raised	 clockwise	 (at	 se
                    
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                        Guided Tour - VX2510 & VX2515 Rear Panel                          1.  Fuse sled -	 This	 contains	 a	 fuse	 holder	 and	 shows	 the	 currently	 selected	 voltage	 rating	 for	 your	 Model	 2500.		 Make	 sure	 the	 voltage	 rat- ing	 is	 correctly	 set	 before	 powering	 up	 the	 amplifier!		 Fuse	 ratings	 are	 10	 amp	 for	 115	 vac	 and	 6.2	 amp	 for	 230	 vac.		 For	 information	 on	 how	 to	 change	 the	 voltage	 rating,	 see	 Appendix	 B	 on	 page	 14. 2.  AC input	 -		 Connect	 the	 suppl
                    
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                        Guided Tour - VX 2500 Rear Panel 5.  Effect Send jack	 -	 Use	 this	 1/4”	 unbalanced	 jack	 to	 send	 low	 imped- ance	 (100	 ohm)	 signal	 from	 the	 Model	 2500	 to	 a	 professional	 outboard	 effects	 processor	 such	 as	 a	 reverb,	 echo,	 chorus,	 flanger,	 or	 harmonizer	 device.*		 Output	 level	 is	 approximately	 0	 dB	 to	 +4	 dB	 and	 is	 post-EQ	 and	 post-compression	 but	 unaffected	 by	 the	 setting	 of	 the	 Master	 Volume	 control.		 You	 can	 also	 use	 the	 Effect	 Send	 jack
                    
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                        Setting Up and Using the VX2510 & VX2515 Setting	 up	 your	 Hartke	 Systems	 VX2515/VX2510	 Bass	 Amplifier	 is	 a	 simple	 procedure	 which	 takes	 only	 a	 few	 minutes: 1.		 Remove	 all	 packing	 materials	 (save	 them	 in	 case	 of	 need	 for	 future	 service)	 and	 decide	 where	 the	 amplifier	 is	 to	 be	 physically	 placed.		 To	 avoid	 potential	 overheating	 problems,	 be	 sure	 that	 the	 rear	 panel	 is	 unobstructed	 and	 that	 there	 is	 good	 ventila- tion	 around	 the	 entire	 un
                    
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                        Setting Up and Using The VX2510 & VX2515 7.		 Experiment	 with	 altering	 the	 balance	 of	 the	 two	 Pre-Amp	 knobs,	 listening	 to	 the	 effect	 each	 has	 on	 the	 overall	 sound.		 Depending	 upon	 the	 specific	 instru- ment	 you	 are	 using	 and	 your	 personal	 taste,	 you	 may	 prefer	 the	 sound	 of	 one	 over	 the	 other,	 or	 you	 may	 prefer	 a	 particular	 blend	 of	 the	 two.		 Note	 that,	 when	 both	 are	 used	 at	 equal	 settings,	 the	 amplifier	 will	 be	 twice	 as	 loud	 as	 
                    
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                        About Equalization The	 Hartke	 Systems	 Model	 2500	 Bass	 Amplifier	 gives	 you	 enormous	 control	 over	 shaping	 the	 sound	 of	 your	 bass,	 using	 a	 process	 called	 equalization.		 To	 understand	 how	 this	 works,	 it’s	 important	 to	 know	 that	 every	 naturally	 occurring	 sound	 consists	 of	 a	 broad	 range	 of	 pitches,	 or	 frequencies,	 combined	 together	 in	 a	 unique	 way.		 This	 blend	 is	 what	 gives	 every	 sound	 its	 distinctive	 tonal	 color.		 EQ	 controls	 allow	 you
                    
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                        About Equalization To	 find	 out	 how	 each	 graphic	 equalizer	 slider	 affects	 the	 sound	 of	 your	 particular	 bass,	 start	 with	 all	 ten	 bands	 flat	 (that	 is,	 all	 ten	 sliders	 at	 their	 detented	 “0”				 center	 position).		 Then,	 one	 by	 one,	 raise	 and	 lower	 each	 slider,	 listening	 carefully	 to	 the	 effect	 of	 each.		 If	 you	 don’t	 specifically	 need	 to	 utilize	 the	 ten-band	 graphic	 equaliz- er,	 bypass	 it	 by	 setting	 the	 In/Out	 switch	 to	 its	 “Out”	 posi
                    
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                        About Compression The	 dynamic	 range	 of	 a	 sound	 is	 the	 difference	 between	 its	 loudest	 and	 softest	 points.		 For	 example,	 as	 you	 play	 your	 bass,	 you’ll	 probably	 find	 that	 some	 notes	 (for	 example,	 notes	 played	 on	 the	 upper	 frets	 of	 the	 lowest	 string)	 are	 considerably	 louder	 than	 others.		 The	 function	 of	 the	 Compression	 circuitry	 in	 the	 Model	 2500	 Bass	 Amplifier	 is	 to	 reduce	 overall	 dynamic	 range	 by	 automatically	 reducing	 the	 level	 o
                    
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                        Appendix A: CASTER INSTALLATION •	 	 L 	 ocate	 one	 caster	 and	 four	 each	 of	 the	 supplied	 screws	 and	 lock	 washers.	 •	 	 	Hold	 the	 caster	 in	 place	 and	 hand	 star 	 t	 the	 screws.		 Be	 careful	 to	 ensure	 that	 the	 screws	 are	 on	 the	 proper	 thread	 chase.	 DO	 NOT	 PUSH	 TEE	 NUT	 INTO	 ENCLOSURE.	 •	 	Use	 a	 screw	 driver	 to	 tighten	 the	 four	 screws.	 Be	 careful	 not	 to	 over	 tighten	 the	 screws.	 •	 	 	Repeat	 the	 steps	 above	 for	 the	 remaining	 three	 caste
                    
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                        Appendix B: Block Diagram Model	 2500 14                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
                    
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                        Appendix C: Changing the VX2510 & VX2515 Voltage 15                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
                    
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                        Specifications Input Sensitivity 	 Passive	 Input	 100	 k	 Ohms	 20	 mv. 	 Active	 Input	 100	 k	 Ohms	 60	 mv. Rated Output Power     	 	 250	 watts	 @	 4	 ohms 	 	 	 							 Total Harmonic Distortion	 less	 than	 .5%	 Signal To Noise Ratio	 approx.	 78	 dBm Equalizer 	 Contour	 Low	 Pass	 ±18	 dB	 @	 100	 Hz 	 Contour	 High	 Pass	 ±18	 dB	 @	 10	 kHz 	 Ten-Band	 Graphic	 ±15	 dB,	 center	 detented 	 	 	 @	 30	 Hz,	 64	 Hz,	 125	 Hz,	 250	 Hz,	 500	 Hz,	 	 	 	 	 1	 kHz,	 2	 kHz,	 3	 kHz,	 5	 kH
                    
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                        Hartke 45	Gilpin	Avenue Hauppauge,	New	 York	11788-8816 Phone:	1-800-3-SAMSON	(1-800-372-6766) Fax:631-784-2201 	 	 www.hartke.com