View Full Version : Analog Line Level

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  1. What type of wire for signal in?
  2. Need help with single supply conversion
  3. Shunted pot?
  4. New to this so be gentle: Want to mod a Audio Control EQX
  5. XLR Selector Box
  6. Opamp for Mic preamp
  7. xlr to pc-soundcard
  8. Wiring unbalanced with XLR instead of RCA
  9. Electronic volume control idea
  10. Trying to separate signal and voltage ground: Am I thinking it right?
  11. Trying to separate signal and voltage ground: Am I thinking it right?
  12. High voltage mosfet buffer
  13. unbalanced to balanced conversion
  14. High End Tone Control
  15. DVD/CD Audio Out Control ?
  16. Stepped-Attenuators = Thin Lower-Mids?
  17. ANN: LF01 Discrete/Hybrid Opamp Module
  18. transformer coupled output= dc block?
  19. searching for amplifier distributer with more than 20 db bass mid treble tone control
  20. Does anyone use a MiniDSP 2x8 as a preamplifier?
  22. "Reverse" Linkwitz Transform
  23. Active crossover for subwoofer
  24. 2 way crossover build (diy first timer)
  25. The joys of Transformer Volume Control maintenance - 23 pole switch replacement
  26. Current feedback composite amplifiers
  27. Ovation Line Pre-Amp
  28. Amplifier XO simulation in WinISD
  29. Phase inverting / not inverting preamplifier
  30. Help a Newb add preamps to his receiver.
  31. DS1802 and CD4052 mux problems
  32. Preamp kit $150-$300
  33. help modifying my Phono-stage
  34. what are you thoughts on zstage from decware?
  35. Help needed with Paul Hynes VCCS
  36. Diy line mixer
  37. help pls...about crossover watts
  38. Problem with DS1802 digital volume control IC
  39. How much overhead is required
  40. multiple feedback low pass filter question
  41. Pre-amp transistor based for dynamic mic
  42. Basic pre-amp for DMX controller
  43. Recapping Linn Linto
  44. Lightspeed Attenuator needs a buffer??? Try these.
  45. anyone modded their musical fidelity V-LPS?
  46. Low audio frequency cutoff filter
  47. Not thrilled with sound of 4562 in active xovers
  48. Tube preamp diy kit
  49. Can somebody please check over my crossover
  50. No Name Pre
  51. Can I do that subs 12ax7 with 12at7
  52. Notch Filter
  53. Swapping Op-Amps... you have checked to see it's stable haven't you ?
  54. wiring input for 4 ch 41hz amp9b
  55. Q_Dispre
  56. Volume & selector controller with 5x7 dotmatrix display for tube/transistor amplifier
  57. why would +ve regulator output -ve voltage? ?
  58. suhr preamp
  59. DIY mixer first project
  60. what is R and C in series to ground?
  61. E.C Audio Finestra Preamp
  62. converting passive xo to line level passive OR salen key? any advice?
  63. Slow ramp up/fast ramp down 48V phantom power (circuit design)
  64. Mic Preamp Buffer
  65. Rotel RC 970 BX MK II - Service Manual
  66. Help needed for tone control circuit
  67. Descrete jFET versus IC op-amp quality
  68. A New approach of Volume Control: AAVA (Accuphase Analog Vari-gain Amplifier)
  69. 8-way (remote) volume control
  70. Remote Controlled (RC) Volume Control Kits - Overview wanted
  71. what causes a big soundstage (audio research)
  72. Passive low-pass passive for line input - 2nd part
  73. Alpine ERE-G180 and G190 schematics
  74. Riaa capacitor voltage ratings
  75. THAT 1510/1512 op-amps
  76. Quality line attenuator?
  77. Passive low-pass passive for line input
  78. Yamaha C-65
  79. Preamp A - 15 : Mark Levinson No. 20.5 Derived
  80. 12az7a phono stage-12ay7a line stage
  81. Relays for ESP P125 (4-way LR crossover board)
  82. 3 band eq with paramertic
  83. tetra phono stage values
  84. Preamp improvements/suggestions
  85. Cascaded Notch filters
  86. Please help: building a notch filter
  87. Help me replacing a (they dont have that) op ic
  88. Improved LDR Volume Control
  89. Mods Xiang Sheng 728A
  90. Ultra-fine level setting
  91. line volume knob
  92. Behringer CX2310 Toroid wiring
  93. Richard Fordham 5.1 Volume Control
  94. INA217 mic preamp critique and questions
  95. Modular Balanced Preamp
  96. Primare i21 broken, no sound
  97. Jfet Preamp Calculator
  98. Use of ferrite beads / core on screened cables
  99. Tube Nube! Where to start,,
  100. [Help] Vintage preamp worth to buy ?
  101. HI-FI Magazine Pre-amp
  102. Basic attenuator question
  103. Jfet folded cascode with diamond buffer opamp
  104. Impedance matching LoZ source HiZ inputs
  105. Gain stage for SS phono
  106. Measuring platter speed.
  107. Budget "passive preamp"
  108. Sansui SP-220 Tube Preamp
  109. Preamp for Piezo cello bridge
  110. Mixer Section explanation help needed.
  111. What is a good 1st order Good Band pass?
  112. Preamp: Comparing LDR and buffered LDR
  113. BTL to Balanced Conversion
  115. Questios about designing with opamps
  116. Preamp from Velodyne HGS line
  117. Using PGA23XX with dac with dc offset
  118. Instrumentation Amp: Input Resistors?
  119. Mic pre amp Problem
  120. please help me
  121. Output transformer in reverse to drive a piezo disk
  122. add a volume control to a dac with dc offset
  123. How to switch phantom power?
  124. zoe tsang simple opamp preamp/buffer kit on ebay
  125. Impedance of parallel transformers
  126. External tunable X-Over
  127. sound of discrete opamps
  128. Big Dumb Input Selector
  129. DIY Line preamp sugestions, 10meter cables
  130. which tube preamp kit for newbie
  131. EQ Circuit before or after crossover circuit ??
  132. Schematic needed panasonic RX-1230 schematic
  133. Passive 16 channel summing mixer
  134. schematic needed: 3 band equaliser + gain stage
  135. Quick question on pots for guitar pre
  136. Counterpoint SA5 Phono Channel Out... Help!
  137. Help with Op Amp outamp
  138. Discrete dual-opamp DIP08 module (jcx topology)
  139. Preamp disappointment and passive mod???
  140. Need help with volume control
  141. Solid State Pre Amp with Tube Amp - Pointless?
  142. Touch-sense/remote active/passive preamp
  143. Summing Mixer and Headphone amp...
  144. Linkwitz-Riley low pass, strange distortion?
  145. Cauer / Elliptic Filter design program
  146. do I need vintage preamp?
  147. Optical Attenuator on the Cheap
  148. CDP output enough for line-level active crossover?
  149. Replacing Samson S 3-way Xover Op amps
  150. Any Semi Manufacturers Better Than Others?
  151. Help me to Build Tube Preamp with Phono
  152. Need audio input indicator
  153. Where do I put the subwoofer volume control potentiometer?
  154. XLR to RCA I/O with Aleph Pre, Acurs Amp, X-OVR and Nak Dragon
  155. microphone echo & delay fx circuit
  156. 3 band eq using jfet transistors
  157. compenstation cap for 2nd order allpass delay circuit
  158. Recommend a DIY pre-amp for use with Hypex UCD modules
  159. Just passing my PLXXO and trafo design by the experts :)
  160. Line stage cap recommendations
  161. AGC automatic gain controler
  162. High quality capacitors for crossovers?
  163. Organizing Components for Low Noise?
  164. fender tmb circuit
  165. 3 band eq
  166. Is This Preamp Okay?
  167. Need a preamp for my sub
  168. Cello Audio Palette
  169. Questions on xover and preamps.
  170. INA134, balanced an unbalanced, normal phase and inverted phase
  171. Help! needed a mic preamp for amplifier
  172. Passive Preamp - Grounding plan
  173. +/- 0.3V bumps on my ground
  174. Yet another preamp...
  175. Active Filter, Delay, and LT circuit board
  176. does anyone have a schematic and pcb layout for 3 band bass onboard eq?
  177. Carver C-1 Preamp Output Voltage Issue
  178. Adding bands to an equalizer circuit?
  179. transformer attenuator directly from v-out dac
  180. Looking for a better OP-Amp to replace a UTC TDA2822L
  181. Hafler DH-101 Pre-Amp
  182. Moog parametric EQ - proper pots?
  183. pga2310 output resistors
  184. HELP with Kaneda line stage PSU
  185. source/ speaker selector
  186. Stepped attenuator - getting the impedance right
  187. Volume control bent(slight) parasound PHP-850
  188. connect IR receiver
  189. High cap ceramic capacitors.... how they "sound"
  190. LED peak level indicator
  191. Balanced Matrix Mixer Question!
  192. Where shall I place the potentiometer?
  193. Preamp to go with an Arcam Delta290 power - do i need active, or will passive be ok?
  194. Is This Possible? Am I Crazy?
  195. Sony TA-E88b ?????
  196. coda pre-01 help fix?
  197. Need a 1 meg input pre stage-?!
  198. Balanced Line driver help.. noisy
  199. 6-band graphic eq project component substitutions / improvements
  200. 1176 compressor output transformer alternative
  201. Help-AC input connected directly to case!
  202. different gain levels and a PLLXO´s impedance
  203. Thorens restec V1 preamplifier
  204. Signal-Powered Compressor?
  205. simplest, purest mixer
  206. Ideas to improve this microphone preamp?
  207. Preamplifier from Lineup & Fotios for fun
  208. MM cartridge capacitance loading
  209. Volume Equilizer
  210. Wanted: Melos 110B schematics
  211. Can 555 circuit supply enough neg voltage
  212. amplifier works connected to PC .. but not when connected to car radio
  213. DIY a preamp
  214. Dynaco PAS Preamp - Complete Rebuild
  215. Subwoofer filter problem - Please help me
  216. Remote control receiver - help
  217. High end preamp kit
  218. Output tranny for 6080 tube
  219. Need to convert a Linar preamp from 220V to 120V
  220. help with interfacing microcontroller to pga volume chip
  221. Carbon pot vs digital pot
  222. Amplitude Errors in the Summed Response of Audio Crossover Filters
  223. Mixer/Amplifier
  224. Help upgrading opamps!
  225. EAD theatermaster 8800 problem
  226. Arduino controled PGA2310 Preamp
  227. Lightspeed clone, BOM
  228. Passive Line Splitter
  229. Resistor wattage for stepped attenuator
  230. Emitter bypass caps in a CE stage
  231. Wanted: Zero feedback 2-10x gain line stage...prefer symmetrical
  232. Cheap Valve Kits (such as this one)... Are they worth the effort?
  233. Need help with Adcom gcd-575
  234. Subwoofer channel mix + crossover
  235. Digital volume control from audiomodule
  236. audio mono preamplifier schematic needed
  237. 8 channel touch sense/remote volume controll
  238. Help with Hum - Hum Help - Aikido
  239. Denon 3808 Schematic
  240. 24 input/24 output mixer
  241. new idea (for me): dual first order building block PCB
  242. Op amps help! 3x3 12v matrix mixer
  243. Project: Stepped attenuator. 35 steps!
  244. Fixing a Kenwood 700c preamplifier - help please!
  245. Looking for help to put together Oracle tt and Graham arm
  246. Vintage Audire Diffet 2 preamp help
  247. This guy has a circuit tattoed on his arm
  248. DC servo and gain stage board with output zobel
  249. class A Line level buffer
  250. Blue tooth headset used for wireless

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