View Full Version : Analog Line Level

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  1. BHL "Le Pacific" phono amp new build problem
  2. need help with vero/strip board
  3. Lundahl LL1545A and 50Hz hum
  4. THAT DRIVER preamp power supply
  5. source of audio signal relays
  6. Hum when pot is in center position
  7. single supply Linkwitz Riley 3 way crossover
  8. Doug Self Preamp from Linear Audio #5
  9. Cary SLP70 Preamp Schematic / Info Anyone?
  10. DIY 2.1 Channel Stereo Pre-Amp Question
  11. Signal FET
  12. My active xover for biamp schematic
  13. Why 2.1Vrms?
  14. Looking for Opamp numbers...
  15. PRE-Amplifier Grounding Question
  16. slowest opamp
  17. Sallen-Key Active Crossover - Is amplifier input impedance a factor?
  18. Which is low noise preamp?
  19. Dyna PAS-3 ...Repair?
  20. Kuartlotron Preamp Implementation, SMD Heavy.
  21. Aline Audio pre-amp board
  22. pga2310 PCB input and output buffer
  23. How to add dB curves
  24. My B1 Buffer Build
  25. 2sk170 GR or BL?
  26. bipolar op amp supplies
  27. BPPBP - Bruno Putzey's Purist Balanced Preamp (well a balanced volume control really)
  28. Grounding Rca's ?
  29. The Kuartlotron - All in one layout conception
  30. Is it okay to split the output signal in a passive preamp?
  31. Polarity dependant EQing?
  32. Transistor mic preamp
  33. Use an active analog crossover or a DSP?
  34. Kenwood ka7300 power in input resistance?
  35. OP Amp basics, need help...
  36. PGA2311 PCB
  37. LT1567 for ES9018K2M SE conversion?
  38. Shunt Potentiometer Calculator Excel-sheet
  39. Volume divider with summed subwoofer out?
  40. Preamp kit suitable for meridian 205 mono blocks
  41. A high-pass PLLX to feed active 'satellite' speakers?
  42. Example of op amp oscillation with pics...
  43. Arduino based LDR volume and source selection controller
  44. DBX noise reduction for tape recorder
  45. Nested opamp circuit... does it really works
  46. audio splitter with tl074 to sub
  47. Home Theater Passive-AVC? TVC?
  48. Aikido dual mono octal
  49. The Wire Balanced Phono Preamp
  50. How to design a passive pre: TDA1543 I/V driving bi-amp Gainclones
  51. Tube preamp?
  52. Custom Preamp for 3.1 Channels with Bypass Switch
  53. Ladder stepped attenuator downsides please
  54. Reel to reel (tape) preamplifier
  55. Hafler DH-110 problem
  56. Line level buffer: discrete or ICs based?
  57. V72 siemens klangfilm
  58. noisy pre amp, audio transformer noisy?
  59. What's up with these messed up square waves?
  60. Remote-controlled tube preamp
  61. Technical advice needed
  62. Marantz HDAM SA 2 buffer vs B1 buffer
  63. Audio limiter
  64. Parasound Halo JC 2 Circuit.
  65. low pass filter active adjustable
  66. Can anyone help me diagnose my IRIS problem?
  67. McIntosh Preamp pre c34 remote? thru loop?
  68. McIntosh C2300 modification
  69. Cx-1000 needs bass
  70. REQ pream mic/instrumen for recording
  71. Stereo to Mono with Dual Voltage Transformer
  72. Looking to create a PEQ. Cant begin.
  73. analog vs digital controled potentiometers
  74. preamp buffer tl074
  75. Annoyingly new at crossovers, can someone help with some fairly easy question?
  76. External compensation capacitor value for NE5534 op amp...
  77. PGA2311 kit issue
  78. INA217 mic preamp for computer
  79. Converting JBL 5600-2B mixer for direct outs
  80. Sherbourn 7020
  81. A Targeted Preamp for Unbalancing and Phantom Powering
  82. Volume control - can someone explain for me please?
  83. Analog audio effects and synths
  84. android arduino digital pot
  85. Parasound hca-1000a preamp needed?
  86. Grounding Issue DAC Preamp
  87. Pre-amp - output caps swap
  88. An honest opinion over this dyn. mic. preamp Please
  89. Upcoming Volume/Selector w/Ground Isolation
  90. Failure or not?
  91. Trouble driving line level with That 1512/1646 combo
  92. V-Cap OIMP Who was listening ?
  93. TDA 1524 tone control
  94. Art project needs help! Line-level splitting...
  95. Warm Audio EQP-WA Tube Equaliser
  96. TKD 2P-2511S - 21 steps replacement AN Kit One
  97. Adding a DAC to tube mixer
  98. Need advice choosing a pre-out voltage booster, mixer, etc.
  99. Opamp input buffer choices
  100. diy custom remote for my preamp
  101. Stereo to Mono Converter
  102. Tone control TL074
  103. VU meter indicator signal levels
  104. How to Null the output of a diff amp please?
  105. Passive Preamp: Arduino based, remote control, Relay R2R, input selection
  106. Great American Sound MM Phono
  107. Modded Kawai mixer
  108. XLR to RCA adapter causes gross amounts of distortion...
  109. Hypex UcD400 OEM unbuffered input?
  110. Great American Sound Head Amp
  111. My active crossover filter project.
  112. Vicol Audio R2R Volume controller Builds
  113. Looking for tone Control using 4558 opamp
  114. Audiolab 8000C - modify or start again?
  115. Pre-amp mods - new opamp caps position?
  116. 3rdOrderAllpass_HowTo: calculate delay
  117. Help with Jung AD744/811 PCB Layout
  118. determine element value for the pre-amp package I am working on
  119. need help with car ampifier preamp section
  120. Thoughts on reduction of 2nd order harmonic distortion
  121. HK citation 17- new output relay switch
  122. Not Equal Slope of Active Crossover at Same Cut Of Frequency
  123. Soundcard buffer critique, please?
  124. A little advice regarding boosted op amp
  125. preamp/buffer for TA2020/2024
  126. Building a decent input switcher
  127. crossover: series vs paraller effect on load impedance
  128. "NOOB" needs help with tube preamp build
  129. SSL xlogic alpha vhd pre phantom problem
  130. "All at once" IC Phono Stage circuit
  131. Phono stage on ebay (stolen trademark)
  132. AK phonostage
  133. INA217 preamp OPA question
  134. PGA 2310 kit
  135. FM Reception Trouble
  136. Help with older Claricon mixer
  137. Single-supply buffer help
  138. minimum preamp output impedance
  139. MXL V69 doesn't work
  140. speaker setup xo help
  141. LCDuino (arduino) R2R relay preamp
  142. My PGA2310 Box
  143. Recommend a Tube buffer for use in product
  144. Spice transistor parameters?
  145. Pre-amp for electret mic capsule->PC input
  146. Good audio with LDR's
  147. Balanced Preamp for bi-amping
  148. dynamic mic to electret input, with splitter
  149. 'slow down' ad797
  150. Linear DAC power supply
  151. VC23 PGAVOL using PGA2310
  152. Help needed designing signal switching circuit
  153. VU Meter XXL with LED Stripe
  154. DC offset from the line level stage.
  155. Anyone have information about Da Vinci Transformer Passive Preamp?
  156. Preamp needed?
  157. DAC to AMP clipping vs noise
  158. Input Select \ Fader IC
  159. Noisy trough
  160. Matching Pre & Power amp.
  161. mic mixer with echo/delay feature connection
  162. http://www.ebay.com/itm/NE5532-volume-control-board-10-times-pre-amp-ASSEMBLED
  163. Phase Inversion
  164. One pair of coupling caps on the input of my XO?
  165. Paralleling transistors for noise
  166. Op Amp rolling OPA627 unstable.
  167. Pitchfork pre-amplifier
  168. 34mm Large Mylar Capsule Diaphragm mic project
  169. XLR to RCA cable wiring
  170. Crown SL-2 Project
  171. Behringer CX2300 replace caps (values change)
  172. Potentiometer wattage
  173. Quick Question about "Grounds".
  174. Mic Preamp which should I make ?
  175. Summing Audio - is it really THAT easy? featuring: MIDIman
  176. 6 channel mini mixer
  177. McIntosh C504
  178. Cambridge 640
  179. Commercial crossover or DIY?
  180. MAX9632???
  181. please help me to calculate/guess Vrms input?
  182. Before you mock me....
  183. New Dual Mono Super BA-3
  184. Two balanced line receivers (switched) at one balanced input
  185. Walt Jung circuit
  186. Unbalancer - user experience
  187. Help, I need to build a signal pad, I want it to be perfect, looking for advice.
  188. Amp Selector Switch - multiple amps, rotary switch
  189. Open Source Remote Control
  190. Another B1 buffer PCB design question
  191. Quad, DIP op amp selection
  192. Input selector provokes oscillation
  193. Aikido Tube buffer stage cathode follower
  194. Doing an analog linear phase crossover
  195. L-C-R RIAA, replacing the L with a gyrator?
  196. LR4 SMD filter project
  197. Linn Kairn schematic?
  198. Volume control for Modulus86
  199. EMU 1616m preamp squealing
  200. Phono stage recommendation
  201. Capacitor on "ground" interconnection to block "ground" DC voltage
  202. tda7052 as volume controll/preamp ?
  203. Help to build a Passive Balanced Preamplifier (Volume control)
  204. Optimal Volume Pot Resistance Question.
  205. How to reduce a preamp output voltage?
  206. Radio Tuner Phono Switcher Box
  207. Linkwitz-Riley 24 dB/Octave pcb
  208. Low pass filter circuit design
  209. Preamp input diagnosis
  210. Modifying a Class A preamplifier design for more gain
  211. PRO 2 or 3 way 4th order crossover.
  212. Those tiresome RCA/chinch
  213. Simple mic preamp
  214. Power supply dilemma for 8-channel mic pre
  215. NAD 1020 replace potentiometers tones!!
  216. Mic cable as single ended interconnects
  217. Layman's question for the pros
  218. Active volume control with balanced output using 2 op-amps
  219. Great American Sound Thalia 1 Service Info
  220. Too much signal voltage...
  221. Impedance matching - Source / Attenuator / Amp
  222. DIY Sine Wave Oscillator Trouble
  223. What is the maximum gain for 1 op amp stage?
  224. What is the consequence of this wiring scheme? (With tangential "extra trace"?)
  225. preamp relay driver needed
  226. Buffer output for PCM1794A
  227. Lemonstre at linelevel
  228. Large band para eq - optimisations and smd pcb ?
  229. Passive line level crossover, different impedance amps
  230. TI Active volume control board...tipd136
  231. carlos Jfet pre voltage questions
  232. Looking for basic source mixer for home system
  233. Help needed for calaculate cutoff frequency ?
  234. Critique this noninverting opamp buffer/amplifier please? Almost time to build...
  235. the "JB" 3-stage Phono Preamp
  236. Preamp does not mute.
  237. 9 Pin1/4" inputjack for Soho tube Preamp
  238. Great American Sound Thaila 2 Setup Procedure
  239. Need a simple pre-amp, quick!
  240. Adding a (variable) gain boost to this non-inverting opamp buffer circuit?
  241. Klotz IC cables - opinions on specific types
  242. Matching I/O Impedance - How to?
  243. Equalizer and tone control circuit used in Dj mixer
  244. High performance subwoofer filter circuit(low pass) to your audio amp
  245. Unity gain opamp circuit
  246. Looking for a Cheap, simple Opamp gain stage
  247. Phantom Powered Stereo DI
  248. Why so difficult; It's just a switch
  249. Buzzing passive pre-amp
  250. do i need a preamp for a passive mixer?

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