View Full Version : Analog Line Level

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  1. STP analog audio interconnect ex-Firewire
  2. Octal ccda inclosure build (lots of pics!)
  3. Question about speaker protection kit circuit
  4. Simple Question about Speaker Protection
  5. low pass filter
  6. Checking needed: 2way active crossover
  7. Cermet or conductive plastic
  8. any one have schematic of this cross over?
  9. Forte F-44
  10. multiple devices feeding a single line input
  11. op amp selection?
  12. Sound-card info needed?
  13. Reducing effects of floor vibrations
  14. Preamp kit recommendations
  15. Signal LED causing distortion
  16. Should I be worried about gain structure?
  17. Soundcard input protection circuit
  18. Balanced line receiver (INA134) - RFI caps - compromise between CMRR/RFI filtering
  19. simple questions: integrating pre and power amp
  20. Need help with subwoofer integration with ZAPH AUDIO SR71
  21. ss chinese preamplifiers?
  22. Help with Passive Summing Theory
  23. Exploring possibilities new downward expander design
  24. mark levinson jc2 defect
  25. PreAmp Voltage/Impedance
  26. LOC Vs. Amps High Level Inputs
  27. Preamp design, include gain bypass?
  28. Thoughts on this input selector PCB? How can I add volume control?
  29. Pot imbalance
  30. Power Supply Upgrade - Request Sanity Check
  31. ADC0804 Relay Attenuator
  32. Experience with edcor xsm2.4k-600 as preamp/dac output ?
  33. Baxandall tone topologies
  34. Volume (level) ... the bottom line
  35. Marchand XM-1 mystery parts
  36. Simaudio CP-8 Owners: Did you know that it was a Denon?
  37. Supply voltage vs performance
  38. 10 band equalizer based on LM833
  39. What kind of filter is this
  40. PS III Linear Control Center
  41. How loud?
  42. comparison idea concerning the villex passive booster jack
  43. Finally! the high gain I needed...
  44. John Curl's Blowtorch preamplifier part III
  45. SAE P101 cap replacement-help wanted
  46. Tracing Hum in Passive Line Level Filter
  47. Troubleshooting a preamp - sources of buzz/humm/hiss
  48. High Dc offset voltage on the input line
  49. Potentiometer selection for my diy project
  50. Pre-amp to power amp problem
  51. Op-amp for Single-Rail Supply
  52. what is the best route for a 2.5 system?
  53. Counterpoint SA-3 rebuild
  54. ground "loop" type issue with Android phones into class D amps
  55. Single ended to balanced conversion
  56. Leveling line signals to power amp
  57. OPA2134 Tilt Equalizer
  58. Removing a Crossover from a poweramp
  59. ls404 based active crossover try
  60. Equalizer
  61. Bose 901 Series IV ActiVe EQ schematic
  62. help with diy phono preamp
  63. PGA2310 preamplifier
  64. Opamp Line Attenuator and Buffer Question
  65. Tube Preamp with HT Bypass...
  66. 4 chanel Stereo Input Selector
  67. Bose 901 series I active equalizer DIY
  68. 110db SNR discrete buffered preamplifier with Vclip indicator
  69. 512-MPSA92 Replacement in MOX
  70. Help with "IPOD" in car audio application
  71. Transistor Preamplifier -part values for higher voltage rail.
  72. P37 pre from Elliot --lowering gain
  73. How to buffer the analog out put of a DAC chip
  74. 7.1 Switcher
  75. How to check circuit for oscillation?
  76. How to "Sum" L+R signals for a mono sub output?
  77. need btl schematic using op-amp
  78. 600:10k line stage transformers any use?
  79. JC-2 Clone Build
  80. Carver C1 preamp loud static "pop"
  81. Understanding and optimizing Ashly xover help?
  82. Current Feedback Opamps in simulation and practice.
  83. fluorescent peak meter
  84. DIY Preamp recommendations
  85. Active Crossover Design: How the drivers influence filter type/topology/slope?
  86. Sumo Athena II balanced?
  87. help me, please find a service manual for dbx386 for repair
  88. PGA2310 impedance questions
  89. Remote control kaput?
  90. Pre amplifier or not?
  91. line level strength - big boost required
  92. input selector, to use resistors at the inputs or not
  93. AH Pre line stage
  94. internal cable recommendation
  95. want to make a splitter box for use with mixer inserts
  96. Modding Ecler AC-6 talkover release
  97. ADC Sound Shaper 3 EQ
  98. Schematic wanted for parametric Equalizers from Behringer and IBANEZ
  99. What else? A PGA-preamplifier...
  100. Modding My ADC SS100-SL Equalizer
  101. Preamp Gain for NE5532
  102. Gain regulation on Counterpoint SA3000
  103. Any analog xovers as good as Ashly XR series?
  104. THAT 5171 Controlled By Arduino?
  105. Ground Loop in UREI 1176 compressor
  106. Handling inactive inputs in source selector
  107. How to split output from phono stage
  108. low pass and subsonic filter
  109. BEQ circuit
  110. Adding in RCA Outputs
  111. Wanted: 80Hz Linkwitz-Riley 24hz/octive low-pass filter
  112. Jumper wires & RFI in preamp
  113. Help with component selection for filter
  114. INKEL MX991
  115. Active Crossover Adjustment
  116. CS3318 based preamp - layout
  117. EAD Theatermaster Classic won't operate
  118. filter Q Question
  119. Buffering two signals together
  120. How to bias 2SK170BL in Boozehound Labs phono pre?
  121. Can I make a really simplistic line-level signal go mono one way, stereo in parallel?
  122. Aikido - approximate input impedance
  123. Ultimate analogue tone control or an audiophool overkill? :)
  124. A remote control preamp in the works
  125. Custom Equalizer Design needed
  126. Multichannel preamp
  127. Hafler Iris Preamp balance issue - fixed
  128. Acurus L10 Preamp Mods & Schematic
  129. Home made DSP / FPGA digital audio mixer
  130. Soundcraft LX7 Replacement parts
  131. Bonsai's practical buffer
  132. Help needed with an audio signal splitter solution
  133. Crosstalk?
  134. i want to throw something
  135. Optimizing resistor placement Vishay TX2575
  136. Input impedance of PRE vs sensitivity to disturbance
  137. PIC Controlled PGA 2320 8 Channel Preamp
  138. How to change a degree of volume pot rotation by remote control?
  139. tamura input transformer shield
  140. Need a help: Mark Levinson No26.
  141. LME49720 Pre amp PCB/Kit
  142. Faulty mixer inputs
  143. Basic home cinema wiring advice
  144. Diamond Cascode, a Diamond-like buffer/current booster
  145. Unusual high-pitched whistle caused by my Audio Pre-AMP
  146. Looking to build stereo mixer but can't find many schematics!
  147. Aureus preAmplifier
  148. strange! LM-4562 question
  149. Tube Preamp hummmmmm
  150. LCDuino-1 Processor, using non-latching relays help
  151. CS3318 PCB Layout
  152. Levels in an active three-way system
  153. Source selector using Analog switches or multiplexers - opinions?
  154. Yet another PGA23xx board...
  155. Concentric shaft Alps "Blue" pot
  156. Cleaning dusty printed circuit boards
  157. ad797 plus buf634
  158. Bypass - ceramic or film?
  159. tweeter crossover
  160. This pre-amp good?
  161. Remote Control Pot
  162. VU Meter ballistics
  163. The "AmpDuino" project
  164. Capacitors at 50v vs 25v on replacement in preamp power supply?
  165. Knocking sound coming from PCB
  166. Versatile quad-amp card
  167. 4-channel 20dB gain stage with unbal inputs and unbal+bal outputs: Any Interest?
  168. Just built a Hagerman Cornet 2 phono pre
  169. ad797 questions
  170. [Newbie]Audio bandpass filter design
  171. Wideband DCA preamp with shunt PS
  172. 3-way input selector + Attenuator + Balanced outputs?
  173. subwoofer circuit
  174. Motorised Volume Pot - Controller isolation
  175. Audio compressor to lower TV commercials-help needed
  176. AUS: Alpha 20/10 Preamp & Sigma 22 Builder Required
  177. 2ch passive stereo summing circuit?
  178. designing a 1-Hz lowpass with no DC error
  179. What is a preamp actually doing?
  180. Choosing attenuator for MF X-10D Clone
  181. some questions about DC servo mic pre's
  182. Need hekp with how to select a preamp
  183. Weird problem with a preamp with 3 band EQ module
  184. TEAC VU Meter Hookup
  185. input transformer frequency response?
  186. Help wanted checking vero layout for active 4 channel mixer
  187. Simple non-digital input selector
  188. dc on only one primary of the line trafo
  189. Volume potmeter Technics Su 8600
  190. Servo on non-inverting opamp ?
  191. Any suggestions to improve these output and input filters?
  192. simple solution for VU-Meter
  193. Combined Speaker-Amplifier Project
  194. Teac AN-60 Alignment
  195. 2.5v achieves lower distortion on LDR NSL32SR2
  196. Help Gain clone supply PCB design
  197. HOW TO MEASURE interference between e.g. 20kHz and 21kHz tones?
  198. 3-way signal splitter
  199. implimenting linkwitz's notch/dip filter for room eq
  200. Anyone seen this EQ before?
  201. ReCapping marantz av-9000 16v 13000uf
  202. Audio Processing
  203. Anyone know what these caps are for?
  204. Is coax needed to wire a microphone?
  205. How do I choose a preamplifier that would be compatible with this microphone?
  206. W06M Bridge Rectifier, equivalent substitute
  207. Preamplifier kit information
  208. Handling +4dBu/-10dBv and un/balanced
  209. Line receiver and driver pcb?
  210. 2 conductor shielded cable
  212. 20hz high pass on Ashly XR2000 - removable?
  213. Transformer Based Balanced Output & Impedance
  214. Poll for the participants of "John Curl's Blowtorch preamplifier part II"
  215. John Bowers Active Control Unit preamp: Info sought
  216. Looking for pointers on first DIY preamp please.
  217. Simple analog vu-meter driver ?
  218. Please pardon the noob question. need guidance
  219. Build a high pass filter for amplifier
  220. Critique on success of this subwoofer cutoff project?
  221. Need gain AMOUNT for mobile phone/pc sources
  222. re-replacing 2sk213/j76 transistors help
  223. Preventing crossover between mixers
  224. RCA LMI- 32215 A - for recording studio.
  225. Rane pot help please...
  226. Simple low voltage tube preamp stage
  227. HELP me design a discrete current sinking positive V regulator
  228. True Biamping and Active crossovers info request
  229. Question about hypex balanced vs unbalanced
  230. Soundcraftsmen
  231. very small noob question project 88
  232. Help with cable conundrum!
  233. P7 Pre amp Trouble
  234. Party-line / Full-duplex intercom - mixing audio signals
  235. ZSP1 preamp gain
  236. Acurus L10 Powersupply
  237. Building an Analog to Digital Converter Unit...
  238. DIY pre amp board
  239. Opamp power bypass
  240. Tone Control - Volatage range for TL072/LF252-N
  241. Stereo volume attenuation
  242. Quad channel volume control
  243. Work? L, R RCA inputs -> 1 XLR out?
  244. Impedance matching pre -> power.
  245. LME49740 vs TL074, design considerations and stability
  246. Solid state R2R attenuator using analog switches or multiplying DAC
  247. MF nuvista source selector problem again
  248. What do we think about solid-state potentiometers?
  249. TubeCAD's ACF2 as a active crossover
  250. Phaseca--My new diy pre amp

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