View Full Version : Analog Line Level

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  1. Attenuating line level signal with buffer vs. resistor...
  2. New Guy Needs Help With Optimus 31-2025 Graphic Equalizer
  3. Preamp: opamp low pass filter for PS noise
  4. I could use some help on a PS Audio Preamp
  5. another opamp based preamp
  6. Comment on Grounding Scheme?
  7. Radio Shack experimenter kits
  8. Crossover for Scan Speak 6000 tweeter.
  9. Neutrik nte 10/3 help
  10. RCA to XLR
  11. BBE XR-5383 chip
  12. Balanced level preamp
  13. cinemag CMLI-15/15B, unbal--> bal
  14. Pin 1: Multiple XLRs between two amplifiers
  15. Connecting Mp3 player
  16. DIY Tone + Volume control
  17. volume control
  18. Linkwitz-Riley Electronic Crossover PCB
  19. Balanced Microphone Preamp
  20. How Much Voltage Do I Need For a Standard Headphone
  21. Yet another passive volume control
  22. Distortion and Source Impedance in JFET Input Op Amps
  23. Analog switches
  24. Yuan Jing 6n3 tube preamp power requirements and options
  25. PGA2310 frequency response
  26. Smoking Preamplifier
  27. Carver C1 preamp
  28. Meridian 201 help
  29. Active speaker- adding amp/xo
  30. basic power supply questions
  31. McIntosh C26 hum after recaping
  32. Old Volvo Tape Deck Line Level to Tape Head
  33. I Need A New Audio Input Indicator
  34. Handy Non Inverting Active Volume Control
  35. Active volume control - Be quiet please.
  36. Complementary MOS Preamp
  38. Simple Symmetrical Preamplifier
  39. EMT-240, EMT 262
  40. Looking for that person who can analyze and upgrade.
  41. TKD stereo attenuator 10k
  42. Douglas self four-band baxandall eq
  43. Input Noise Cancelation - LME 49990 - LT1028
  44. Baxandall Variations
  45. HELP! Electret mic - Powering from Focusrite mic preamp with 48v
  46. Output Transformer for INA217 Mic Preamp?
  47. Advise please on EQ restore...
  48. Recommendations for pre/mixer/thing boards or etc.?
  49. Unidirectional Electert Mic and Preamp help.
  50. Rotary stepped attenuator (series) instructions?
  51. High Quality Splitters and Mixers
  52. Which transformations inside this Django?
  53. Balanced stepped attenuator with constant input impedance
  54. 4-ch unbalanced as stereo balanced?
  55. zobel network at driver Fs?
  56. another relay input/volume controller
  57. Basic Inverting Opamp HUM
  58. Recommendations for a simple, opamp-based low-gain stage?
  59. Art Project needs advise, wall of boomboxes
  60. Attenuator design for a modular synth?
  61. Pot values for tone control - from 25k to 10k
  62. Needing Stereo to Mono Summing help...
  63. 2.1 preamp
  64. A little advice, re capping
  65. 8 ohm volume pot
  66. Naim NAC 32.5 Gain board lower gain
  67. P7 Mini Preamp Possible Improvements
  68. Hum issue in hpf circuit
  69. CS3318 Volume Control board with IR?
  70. Balanced line behaviour on Mixer's output
  71. Akitika PR101 Preamp by Dan Joffe
  72. Which one of these wiring schemes will have lower noise?
  73. Need help identifying preamp internals. Conrad Johnson PV-1?
  74. New edition D. Self Small Signal Audio Design
  75. Subwoofer preamplifier with low frequency boost below 30Hz?
  76. Spectrum analyser using LM3915
  77. 9V opamp suggestions
  78. Circlotron LINE and RIAA Pre-Amplifiers wanted
  79. JFET choice for transformer coupled mic preamp
  80. understanding source+return current flow on PCBs
  81. Why are JRC MUSE01 and MUSE02 opamps so expensive?
  82. can use la3161 as a simple solution in a car ?
  83. crossover commission/kit
  84. Switch both sides of input connections?
  85. Hammond 140QEX
  86. Current Amplifyer
  87. An Old Nikko power-supply section question
  88. THAT 202XT VCA + ?
  89. Need analog guru help on grounding
  90. iRig Pre Component Upgrade
  91. Calculating a TVC
  92. Balanced Microphone Preamplifier
  93. Electret Condenser Microphone preamp analysis
  94. LF Line Level Stage design to preceed class D amplifier
  95. Mic Preamp w transformer input: changing impedance
  96. Line level / unity gain vacuum tube circuits
  97. Interpret stereophile measurement data
  98. Diy passive pre and switch
  99. slow audio increase at turn on?
  100. Hammond Amplifier Modification Issue
  101. Would like some help with a "Crossover Isolator"
  102. Correct way to split line level inside dual headphone amp
  103. How can this work?
  104. Balanced input
  105. crossover / summer for "2.1" active or passive
  106. Need Advice for Bi-amping
  107. Too much DC at buffer's output
  108. passive pre-amp ?
  109. Salvaged Phono Preamp - Begginner Help
  110. Tape head amplification circuit
  111. Laptop to Guitar Amp cable. . . Resistor values?
  112. Hifi from german studio modules - help wanted
  113. Guard rings for op amps
  114. Tone control for Low bass selector and boost circuit
  115. "Lehmann" Buffer Output Transistors.
  116. Minuature Low Pass Filter
  117. Easy High-Pass Filter
  118. Analog signal control
  119. Buffer Stage
  120. Critique my first drawing / possible build [Active DI]
  121. Low pass filter for Bitstream DAC.
  122. Looking for 0-10V Analog Volume Control Circuit
  123. AVC
  124. looking for programmable eq chip / pcba module ??
  125. Another Modified PGA2311 kit with Arduino for volume control and input selection
  126. Kudies to/for the Tortuga Audio LDR3X.V2
  127. Parasound P/HP 850
  128. LECUA 1000 attenuator from Luxman ?
  129. Line Level Output to Guitar Amplifier Input
  130. is there an off the shelf preamp module that works with the apple remote?
  131. How about this sub crossover filter?
  132. help with 2 pole low pass filter/attenuator
  133. Zobel at the srpp input
  134. Preamp noise after PSU update
  135. Low level interconnect (RCA) measurements
  136. what are the blocks generally found in a pre-amp board?
  137. Carver ct-3 preamp
  138. Advice on a preamp/external volume control for use with active monitors
  139. Audiophile quality preamp
  140. Building a Line Level Mixer, Transformer advice needed
  141. Sowter type 3232
  142. Super tone controls-I need PCB
  143. L-pad attenuator on preamp output
  144. DI output protection from phantom power
  145. Getting Started on Preamp Design
  146. Balanced to unbalanced.
  147. Input device protection
  148. WTB LDR volume control PCB ?
  149. Adding Input Gain +/-
  150. Room correction using a modified Linkwitz Transform Circuit
  151. How to change active xover frecuencies
  152. non inverting opamp with gain
  153. Digital volume control for 7.1 preamp
  154. Current options for a budget active LLXO?
  155. low impedance high-pass filter
  156. AKG Perception 100 mic repair
  157. How do I configure a simple logic control
  158. PCB, Tone Control with Transistors and dual supply
  159. very very simple DJ mixer aka summing amp?
  160. Passive low pass filter for subwoofer
  161. Linn Exotik/S non DA version lock up problem
  162. Shine7 12au7 preamp builds?
  163. non-DSP delay - is it possible?
  164. Stevens & Billington TX102 Passive preamp Built
  165. Loading considerations in Filter design
  166. TEAD (Tom Evans Audio Design) Groove RIAA MC Phono Preamp - want simplified Schematic
  167. Diodes instead of input selector (insane newbie question)?
  168. Experience with anti-parallel electrolytic capacitors?
  169. Best wire for passive pre?
  170. Which Op Amp Supply Bypass Technique for Low Noise?
  171. Add MONO/DIM to DAC/Preamp
  172. Crackling from input cable (even when there is no input)
  173. Best sounding signal level relay?
  174. Mic preamp around transformer
  175. Questions on op amp settling time and quiescent current.
  176. question on crossover board layout
  177. Bugle 2 problem
  178. Rca Passive Summing Box
  179. RC Chain in a 3 Band Baxandall EQ Circuit?
  180. Parallel transformer output
  181. Modding Marantz PM-15S1
  182. Sony TA4300F Crossover
  183. Upgrading a commercial phono stage
  184. New Bonsai Preamp
  185. Help with line input switch
  186. Remember the thermal noise....
  187. Help with passive attenuator for headphone amp
  188. Do amp inputs interact with each other?
  189. 6n11 preamp hum
  190. need help with boombox pre-amp/tone control design
  191. Muses01 op amp mod for Rotel RSP-1098(+\-18v)?
  192. low pass filter for DAC output
  193. Driving headphone from speaker output - filtering layout
  194. Highpass mic filter
  195. suitable power supply for dozen opamps?
  196. Little sub preamp/phase circuit
  197. RCA Mixer/Combiner
  198. Offset Problem with Borbely JFET-Buffers
  199. op amp class a bias
  200. Effects of Opamp Loading?
  201. Alps RK27 Motorized Pot - Teardown
  202. TDA7439 tone control IC any good?
  203. 100HZ PLLXO
  204. Bourns PTD90 Series Potentiometer
  205. lowest load for line level equipment to not harm the output stage?
  206. Most important opamp?
  207. 5.1 decode in preamp?
  208. Preamp Recommendation For Millett "Engineer's Amplifier"
  209. Tone feedback loop- can you spot the problem?
  210. DIY turnable amplifier aka RIAA - newbie questions!
  211. Great Deal on RCA Interconnects (Canada)
  212. preamp for hlly tamp-90
  213. AD815ARB-24 availability in any online stores? couldnt find
  214. Super Chip Preamp v1.2 (LT1363)
  215. Opinion on differential low pass filter
  216. Active Low Pass
  217. Differential preamplifier
  218. trouble with varimu compressor design
  219. PGA2311 volume control.
  220. Active Crossover frequency response - help needed HH X300
  221. Suggestion For CFA Op-amp
  222. preamp/mixer combo
  223. 12 channel volume control unit?
  224. Documentation on designing preamps
  225. Clean Line Output? OPA627
  226. Active crossover with AD815?
  227. Carlos AD815 pre voltage supply recommendations
  228. Help with Sowter 1990 SUT wiring
  229. Line level rc lowpass clicking
  230. Attenuator for Passive pre amp, best sounding solution
  231. Source for custom-terminated interconnects ?
  232. Onboard JFET Instrument Low-Z Preamp Help?
  233. Why white noise is always present?
  234. How to implement a pop free/low distortion muting circuit?
  235. Suggestions Requested for Mini Buffer Preamp
  236. Mini-Me second edition tube phono preamp
  237. Balanced fixed H attenuator for line level
  238. impedance symptom
  239. How to link two cores with TRS connector?
  240. Turntable earthing woes
  241. tuac weight and tops preamp
  242. Suggestions for single bipolar input op amp?
  243. Pop/click free HW-based relay attenuator
  244. THAT 1646 PCB - help me review please
  245. new line-preamp
  246. Question on Rod Elliott's P088 op-amp based preamp
  247. Pot hum/external speakers
  248. Will this circuit work?
  249. wiring sub to tube stereo
  250. TI on Filter Noise

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