View Full Version : Analog Line Level

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  1. Volume Potentiometer Sizing and setup
  2. Balanced Cable Capacitance -- Conductor to Conductor or shield to conductor?
  3. Crossover hints
  4. H1ot signal into mic input?
  5. DIY interconnect with LP filter built-in?
  6. Can someone help to explain this op amp balanced output?
  7. Any Interest in BJT and FET DOAs (Discrete Op Amps) in 2520 format?
  8. Euridice line preamp
  9. Simulation programs
  10. Simplest 1st order high pass and low pass filter
  11. Help with designing an active, balanced input mixer with crossfader
  12. Volume control signal level
  13. Where to adjust regulator voltage?
  14. DC blocking cap
  15. Channel unbalance in active crossover
  16. line level attenuator calculation
  17. Simplest Passive Preamp design
  18. Changing a pot's value with parallel resistors
  19. Preamplifier for Rotel RHB 10
  20. High DC offset on preamp
  21. passive line level high pass crossover
  22. High pass filter for line level info needed
  23. Problem with Opera CY222 line preamp
  24. broskie triangle buffer not working
  25. BGW model 203
  26. Phone Mic Input Bias voltage effect
  27. Apex P30+ A class PSU...questions?
  28. Circuit for subwoofer crossover 25Hz to 250Hz
  29. Cascode buffer
  30. Can Someone please verify this circuit ?
  31. Signal/power path questions
  32. Linkwitz Transform... lowpass?
  33. how to design very stable, DC accurate LP filter with lots of gain?
  34. Relays in the volume control, reed or not reed (and other things)
  35. Technical Question 420ohm output preamp to 600ohm tube amp
  36. Building a Douglas Self design preamp
  37. Crossovers for beginners
  38. Pre-amplifier for electret mic and Line-in audio sources
  39. Current feedback amplifier circuit (preamp/headphone amp)
  40. tda7439 filter design
  41. Bridging Amps using a balanced line driver
  42. OPA2134 current consumption: more advice needed
  43. Can someone help a rookie with a DIY monitor controller?
  44. alps pot for passive volume control
  45. Yamaha c2 pre transformer question
  46. Opamp buffer @ active crossover input?
  47. opamp inversion?
  48. D-12 Hybrid LV Preamp!
  49. simplest discrete really-unity gain buffer
  50. MM28 phono preamplifier
  51. 600ohm passive xover for multiamp
  52. H-bridge killing transistors
  53. DAC balanced & Unbalanced output to bridged amp input
  54. Subsonic Filter Troubleshooting
  55. Which Graphic Equalizer Circuit Topology provides best Sonic Quality ? "Constant-Q" ?
  56. Recommend me a good quad soic opamp ?
  57. The boring but essential line stage
  58. Tresham DR3 pre amp Servicing
  59. Adding Remote Volume Control
  60. Line Level Crossover needed: to DIY or not
  61. +/- DC instead of +/- AC?
  62. CFP Unity Gain Buffer
  63. Preamp recommendation for Millett DCPP amp
  64. A/D Converter Driver - Active bandpass filter
  65. How to connect 3 mixers to 1 DSP
  66. Help with Millennia PRE AMP
  67. Balanced to unbalanced wiring help
  68. Forte 2 preamplifier power supply
  69. Promitheus TVC rebuilding
  70. Tone control schematic
  71. Active (Baxandall) Volume Control for Single Supply
  72. Pin Confirmation
  73. Cut out in one channel on Yamaha preamps CX-800
  74. PS 4.5 schematic
  75. An unusual preamplifier with multiple outputs
  76. Split signal
  77. Decoupling a quad opamp
  78. Help calculating low pass filter frequency
  79. Hybrid transformer-pot volume control
  80. B1 Buffer with a bad channel - need help!
  81. My new preamp design: Arduino, 6 input selector, MDAC attenuator, IR etc
  82. pre-amp problem!
  83. Active subwoofer filter
  84. Crazy distortion problem with transformer and active filter (opamp / Sallen Key)
  85. Passive pre-amp
  86. Universal Integrated Preamplifier
  87. Does Muses 72320 have OPAMP inside chip or not?
  88. Cheap/simple relay/resistors attenuator for RPI
  89. Hybrid Borbely Follower/Buffer - Please Critique
  90. Line stage chassis layout
  91. Sanity check: input grounding scheme
  92. Graphic Equaliser SUPER QUIET
  93. Passive crossover design
  94. Suggestions for remote volume control
  95. Yamaha C65 - Repair: Burnt Board
  96. Audio/MIC 3.5mm to 3.5mm TRRS (mic wiring?)
  97. solid state buffer
  98. Best DIY tube preamp question
  99. Advice On Gain/Loading Switch Implementation Phono
  100. LPF on signal path
  101. Two chases preamp configuration question
  102. Muses 72320 dual mono unbalanced configuration question
  103. OPA2134 preamp
  104. Passive Sum two signals - Resistor Value Help
  105. Subwoofer phase shift
  106. PrimaLuna; Phonologue board subst.
  107. What is equalizer in practice ?
  108. X-over help - Will this setup work?
  109. Preamp board suggestions for Hypex UCD3XMP module
  110. Jfet buffers online.
  111. Musical Fidelity "The Preamp" - any good ?
  112. 1 PRE-OUT splitter to 2 AMPS
  113. Joining RCA inputs or splitters and quality
  114. Possible tube (almost) phono preamp design
  115. Chromecast Audio + Airplay as analog source: Can I use a Y-splitter?
  116. Preamp + headphone amp total gain
  117. Help with mixer using MCP6271 op amp
  118. Opinions on this passive pre schematic
  119. How to Wire Selector Switch & Vol Control
  120. Volume control: altering gain instead of attenuator? Good or bad?
  121. My first OPamp preamp PCB - few questions.
  122. Buffer the buffered filter?
  123. Op-Amp Circuit Components: Any Ideas About This Circuit Section's Function?
  124. preamp question/buffer scematic with muses 72320
  125. Horrible Freq Resp from my MX110
  126. Input/pass-through switch
  127. Salas DCG3 preamp (line & headphone)
  128. Phase Linear 2000 Pre-amp overhaul
  129. Rotel RTC 850 Problem
  130. Cabre AS45 active crossover
  131. Preamp causing distortion
  132. discrete preamp/gain module recommendation
  133. 1 transistor 3 band tone circuit, will it work?
  134. BPBP starter help
  135. Hi Freq rolloff with ne5532 based unbalancer
  136. Crossover Rebuild Advise
  137. Perreaux SM-2 need help with output transistors
  138. Crossover conversion
  139. Need finding simple high impedance pre-amp to boost signal to Schmitt Trigger circuit
  140. remote volume control
  141. 2SK932 Buffer
  142. Please help with cap orientation.
  143. Single Supply 2-way active XO
  144. Neve 2254/E troubleshooting
  145. Need help with wiring a stepped atteunator
  146. What is the preferred MF X-10D clone?
  147. G.A.S Goliath
  148. Popping noises in Thiel CS3.5 Bass EQ??
  149. The distortion this preamp, is it fake?
  150. Volume Control use Dual 8-BIT/12-BIT DAC - I don't understand how it works
  151. DBX Driverack 4820
  152. Simple & portable mixer with 6 analog inputs
  153. Averaging PGA2320 outputs in mono configuration
  154. volume and tone control at same time
  155. AC coupling and hum question
  156. Butterworth series to Linkwitz-Riley Calculation
  157. CS4398 - Output Stage
  158. Any Discrete CFA Opamp?
  159. Pre-amplifier circuit not working despite attempts to fix it
  160. Opamp survey
  161. Article - 2 New and Improved AVC Topologies + Full Pre-Amplifier
  162. Passive vs Direct
  163. Active Crossover... help me wrap my head around this.
  164. Help with VU meter amplification made of an Ampere Meter
  165. Multi-purpose dual op-amp PCB design
  166. Relay volume control and input kit?
  167. Need advise about active crossover routing
  168. Pot Noise
  169. balanced vs. unbalanced
  170. Defective PGA2311 preamp display screen
  171. which preamp kit ?
  172. Volume control - Pass Camp Amp
  173. Preamp between Boozhound phono and ACA amps
  174. A hum problem
  175. Advice on preamp+tone kit or IC for use with ClassD board?
  176. Advice PreAmp <$400
  177. OPA627 Preamp Dynamic Crosstalk Issue
  178. Audio Limiter with JFET Class-A
  179. Preamp problem
  180. Cheap IC-based remote volume control kit
  181. Notch filter in balanced configuration between Amp and Pre Amp
  182. Maya R2R connection advice
  183. Following a Technics SU-9070
  184. Willow II
  185. The THD+N of passive preamps
  186. Investment volume potentiometer
  187. Active filter for fullrange: where do you need op amp buffers?
  188. Advice on Attenuators
  189. effects loop insert for mixer
  190. Battery powered active x-o. To decouple or not to decouple?
  191. Pre-amp amplifier driving capacity
  192. DIY DJ Mixer
  193. 70s Pioneer SR202 spring reverb - power issues
  194. Verify my high pass filter wiring for me?
  195. DIYINHK AD1862 I/U stage suggestions.
  196. Simple remote volume control (controlled through arduino)
  197. Does this passive preamp exist?
  198. Peak to peak
  199. Recommandations for electrolytic capacitors / preamp recap
  200. Will a capacitor high pass filter interfere with BSC circuit?
  201. Anyone know anything about Analog Devices B100?
  202. Capacitors wired in Series vs. Parallel - Please verify my understanding
  203. Signal to chassis ground query
  204. Mark Kelly DC motor controller advice required please
  205. Transformers to buffer PLLXO??
  206. triangle buffer for unbalancing?
  207. where are decoupling capacitors required
  208. Preamplifier recap: voltage values
  209. Simple mixer project (one mic, one line inputs)
  210. Analog combiner vs digital summing?
  211. Balanced or Unbalanced
  212. AK4113 automatic inputs or?
  213. Mark Levinson 380s PreAmp Schematic needed
  214. Moscode Super IT - schematics? power supply?
  215. AES article on the ultimate active crossover
  216. Attachment identification
  217. MiniDSP 4x10 HD Measurements
  218. Volume pot roughness
  219. Distortion in a Tone Control
  220. Remote Control for the BPBP
  221. Looking for standalone VU meter
  222. Logitech Ultimate One Compatible Potentiometer
  223. Ways to sum stereo to mono before the power amplifier?
  224. What's the benefit of a balanced floating line driver anyhow?
  225. Capacitor and Resistor choice for OpAmp line tap
  226. Rotel rsp 976 memory capacitor problem
  227. Triaxial interconnects
  228. 2.1 Channel Preamplifier?
  229. Opamp on battery
  230. single supply buffers
  231. 10kohm series/shunt 23 position resistor attenuator.
  232. Low cost Arduino based total amp control
  233. need advise to optimise my OPamp preamplifier
  234. Filter design
  235. Convert stereo Speaker Level to mono Speaker Level?
  236. Hovland HP100 line pre amp
  237. Neurochrome Differential preamp build
  238. Ribbon cables and audio
  239. Volume pot value
  240. Stereo Coffie 3 Input LDR preamp setting up
  241. parallel opamp?
  242. Advice on troubleshooting TK Audio The Strip - Distorts after ~100sec
  243. Question about LM4562 preamp (SC 08-07)
  244. Chinese sub filter, any good?
  245. EZ1073 build
  246. Arduino CPU for the PGA2311 preamp
  247. how to build a butterworth filter
  248. mercury switched input selector
  249. Cheap Chinese active X-O
  250. Restek Fantasy

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