View Full Version : Analog Line Level

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  1. Quick Question about "Grounds".
  2. Mic Preamp which should I make ?
  3. Summing Audio - is it really THAT easy? featuring: MIDIman
  4. McIntosh C504
  5. Cambridge 640
  6. Commercial crossover or DIY?
  7. MAX9632???
  8. please help me to calculate/guess Vrms input?
  9. Before you mock me....
  10. New Dual Mono Super BA-3
  11. Two balanced line receivers (switched) at one balanced input
  12. Walt Jung circuit
  13. Unbalancer - user experience
  14. Help, I need to build a signal pad, I want it to be perfect, looking for advice.
  15. Amp Selector Switch - multiple amps, rotary switch
  16. Open Source Remote Control
  17. Another B1 buffer PCB design question
  18. Quad, DIP op amp selection
  19. Input selector provokes oscillation
  20. Aikido Tube buffer stage cathode follower
  21. Doing an analog linear phase crossover
  22. L-C-R RIAA, replacing the L with a gyrator?
  23. LR4 SMD filter project
  24. Linn Kairn schematic?
  25. Volume control for Modulus86
  26. EMU 1616m preamp squealing
  27. Phono stage recommendation
  28. Capacitor on "ground" interconnection to block "ground" DC voltage
  29. tda7052 as volume controll/preamp ?
  30. Help to build a Passive Balanced Preamplifier (Volume control)
  31. Optimal Volume Pot Resistance Question.
  32. How to reduce a preamp output voltage?
  33. Radio Tuner Phono Switcher Box
  34. Linkwitz-Riley 24 dB/Octave pcb
  35. Low pass filter circuit design
  36. Preamp input diagnosis
  37. Modifying a Class A preamplifier design for more gain
  38. PRO 2 or 3 way 4th order crossover.
  39. Those tiresome RCA/chinch
  40. Simple mic preamp
  41. Power supply dilemma for 8-channel mic pre
  42. NAD 1020 replace potentiometers tones!!
  43. Mic cable as single ended interconnects
  44. Layman's question for the pros
  45. Active volume control with balanced output using 2 op-amps
  46. Great American Sound Thalia 1 Service Info
  47. Too much signal voltage...
  48. Impedance matching - Source / Attenuator / Amp
  49. DIY Sine Wave Oscillator Trouble
  50. What is the maximum gain for 1 op amp stage?
  51. What is the consequence of this wiring scheme? (With tangential "extra trace"?)
  52. preamp relay driver needed
  53. Buffer output for PCM1794A
  54. Lemonstre at linelevel
  55. Large band para eq - optimisations and smd pcb ?
  56. Passive line level crossover, different impedance amps
  57. TI Active volume control board...tipd136
  58. carlos Jfet pre voltage questions
  59. Looking for basic source mixer for home system
  60. Help needed for calaculate cutoff frequency ?
  61. Critique this noninverting opamp buffer/amplifier please? Almost time to build...
  62. the "JB" 3-stage Phono Preamp
  63. Preamp does not mute.
  64. 9 Pin1/4" inputjack for Soho tube Preamp
  65. Great American Sound Thaila 2 Setup Procedure
  66. Need a simple pre-amp, quick!
  67. Adding a (variable) gain boost to this non-inverting opamp buffer circuit?
  68. Klotz IC cables - opinions on specific types
  69. Matching I/O Impedance - How to?
  70. Equalizer and tone control circuit used in Dj mixer
  71. High performance subwoofer filter circuit(low pass) to your audio amp
  72. Unity gain opamp circuit
  73. Looking for a Cheap, simple Opamp gain stage
  74. Phantom Powered Stereo DI
  75. Why so difficult; It's just a switch
  76. Buzzing passive pre-amp
  77. do i need a preamp for a passive mixer?
  78. Wire gauge for amplifier's signal level input.
  79. RIAA preamp project
  80. CD Line out - PC sound
  81. Phono pre with Jfet and then ad815 at the second stage..
  82. Replacement for Monacor's RCA Connector T-724G wanted
  83. synare clone kit
  84. Full-Analog Arduino(or embedded)-CTRL 2wayCrossover
  85. Line Level Transformer Impedance
  86. Need help with schematics
  87. Luminous Axiom Passive Pre with 2 Outputs - Dumb Question
  88. how to remote control a rotary switch
  89. NE5532 preamp questions
  90. Using O2 as preamp
  91. 0.005% Distortion Tone Control Preamp, NJW1119A Chipset
  92. Low pass filter for subwoofer.
  93. Getting 10-15 dB gain from an opamp buffer circuit?
  94. Simple Volume Knob&Limiter?
  95. Phono card as standalone unit
  96. Passive Preamp schematic for multiple inputs and 2 outputs - help?
  97. 3-way input audio input switching board (ebay)
  98. mixer line in gain control
  99. Single ended Baxandall control - offset on pots
  100. HK825 replace Balance Pot
  101. Simple attenuation needed
  102. Looking for circuit improvement advice(Precision Fidelity C8)
  103. pre-amp with 2 stages adjustable gain
  104. portable discrete mic preamp
  105. Preventing source selector 'thump' using transformer?
  106. Bass loss after static shock - HELP
  107. First post
  108. R-2R attenuator PCB layout question
  109. Using 2SK170/J74BL in Ebay JC-2 "Clone"
  110. Is this signal path correct?
  111. Op amp band pass filter connection problems
  112. lpf calculator
  113. impedance matching question
  114. Custom 6H30 linestage
  115. DIY microphone preamp for Monacor MCE-404U capsule
  116. AD815 or THS6012 pros and cons
  117. What is the impedance out of a voltage divider?
  118. Phono Preamp Question...
  119. Sony pcm 7010 - XLR to RCA input
  120. TDA1524A preamp
  121. Wishlist: Op Amp Characterization Curves in Datasheets
  122. Parametric Mid EQ Pot Wiring
  123. Need PS Audio PS IV schematic
  124. Adding Balanced Outputs Psuedo or Real?
  125. Sending an A/V multi channel pre out into another A/V line in?
  126. Copper purity of Cat-5e cable ?
  127. Balance control?
  128. Input/output transformer question
  129. Equalizing the midrange out of a small Radio Shack driver
  130. what ohmage potentiometer for line out volume control?
  131. preamp signal powered down amp
  132. Passive Balanced Attenuator (between Pre & Power)
  133. Best way to add stereo subwoofer pre-outs to existing DAC/preamp?
  134. iPhone Line Out to Car Amp
  135. Is LR4 phase shift audible
  136. line preamp /buffer /module
  137. Please evaluate this RIAA schematic (njm4580)
  138. Praamp crackling
  139. Buffer Jfet
  140. Onkyo SC-901 crossover rebuild(upgrade)
  141. Art Tube MP Help!
  142. How is the sound of the Radford ZD22 preamp compared to modern high-end preamps ?
  143. from stereo to mono (subwoofer) passive adder ?
  144. Newbie Question: Troubleshooting Simple Line Mixer
  145. About preamp circuits improvements
  146. Noob Question: Electros in signal path
  147. Passive or feedback RIAA network tube phono pre?
  148. THAT1606 based line buffer for balanced guitar - Vero design okay?
  149. Attenuating line level signal with buffer vs. resistor...
  150. New Guy Needs Help With Optimus 31-2025 Graphic Equalizer
  151. Preamp: opamp low pass filter for PS noise
  152. I could use some help on a PS Audio Preamp
  153. another opamp based preamp
  154. Comment on Grounding Scheme?
  155. Radio Shack experimenter kits
  156. Crossover for Scan Speak 6000 tweeter.
  157. Neutrik nte 10/3 help
  158. RCA to XLR
  159. BBE XR-5383 chip
  160. Balanced level preamp
  161. cinemag CMLI-15/15B, unbal--> bal
  162. Pin 1: Multiple XLRs between two amplifiers
  163. Connecting Mp3 player
  164. DIY Tone + Volume control
  165. volume control
  166. Linkwitz-Riley Electronic Crossover PCB
  167. Balanced Microphone Preamp
  168. How Much Voltage Do I Need For a Standard Headphone
  169. Yet another passive volume control
  170. Distortion and Source Impedance in JFET Input Op Amps
  171. Analog switches
  172. Yuan Jing 6n3 tube preamp power requirements and options
  173. PGA2310 frequency response
  174. Smoking Preamplifier
  175. Carver C1 preamp
  176. Meridian 201 help
  177. Active speaker- adding amp/xo
  178. basic power supply questions
  179. McIntosh C26 hum after recaping
  180. Old Volvo Tape Deck Line Level to Tape Head
  181. I Need A New Audio Input Indicator
  182. Handy Non Inverting Active Volume Control
  183. Active volume control - Be quiet please.
  184. Complementary MOS Preamp
  186. Simple Symmetrical Preamplifier
  187. EMT-240, EMT 262
  188. Looking for that person who can analyze and upgrade.
  189. TKD stereo attenuator 10k
  190. Douglas self four-band baxandall eq
  191. Input Noise Cancelation - LME 49990 - LT1028
  192. Baxandall Variations
  193. HELP! Electret mic - Powering from Focusrite mic preamp with 48v
  194. Output Transformer for INA217 Mic Preamp?
  195. Advise please on EQ restore...
  196. Recommendations for pre/mixer/thing boards or etc.?
  197. Daisy chain components
  198. Unidirectional Electert Mic and Preamp help.
  199. Rotary stepped attenuator (series) instructions?
  200. High Quality Splitters and Mixers
  201. Which transformations inside this Django?
  202. Balanced stepped attenuator with constant input impedance
  203. 4-ch unbalanced as stereo balanced?
  204. zobel network at driver Fs?
  205. another relay input/volume controller
  206. Basic Inverting Opamp HUM
  207. Recommendations for a simple, opamp-based low-gain stage?
  208. Art Project needs advise, wall of boomboxes
  209. Attenuator design for a modular synth?
  210. Pot values for tone control - from 25k to 10k
  211. Needing Stereo to Mono Summing help...
  212. 2.1 preamp
  213. A little advice, re capping
  214. 8 ohm volume pot
  215. Naim NAC 32.5 Gain board lower gain
  216. P7 Mini Preamp Possible Improvements
  217. Hum issue in hpf circuit
  218. CS3318 Volume Control board with IR?
  219. Balanced line behaviour on Mixer's output
  220. Akitika PR101 Preamp by Dan Joffe
  221. Which one of these wiring schemes will have lower noise?
  222. Need help identifying preamp internals. Conrad Johnson PV-1?
  223. New edition D. Self Small Signal Audio Design
  224. Subwoofer preamplifier with low frequency boost below 30Hz?
  225. Spectrum analyser using LM3915
  226. 9V opamp suggestions
  227. Circlotron LINE and RIAA Pre-Amplifiers wanted
  228. JFET choice for transformer coupled mic preamp
  229. understanding source+return current flow on PCBs
  230. Why are JRC MUSE01 and MUSE02 opamps so expensive?
  231. can use la3161 as a simple solution in a car ?
  232. crossover commission/kit
  233. Switch both sides of input connections?
  234. Hammond 140QEX
  235. Current Amplifyer
  236. An Old Nikko power-supply section question
  237. THAT 202XT VCA + ?
  238. Need analog guru help on grounding
  239. iRig Pre Component Upgrade
  240. Calculating a TVC
  241. Balanced Microphone Preamplifier
  242. Electret Condenser Microphone preamp analysis
  243. LF Line Level Stage design to preceed class D amplifier
  244. Mic Preamp w transformer input: changing impedance
  245. Line level / unity gain vacuum tube circuits
  246. Interpret stereophile measurement data
  247. Diy passive pre and switch
  248. slow audio increase at turn on?
  249. Hammond Amplifier Modification Issue
  250. Would like some help with a "Crossover Isolator"

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