View Full Version : Analog Line Level

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  1. Ultra Low Noise - Ultra Low Impedance - Ultra big Problems!
  2. Anyone Ever Heard of a Soho Quatro Preamp?
  3. Help please: need wiring schema for S&B TX-102 TVC
  4. mp3 --> ? Input Transformer ? --> class d
  5. Aikido Octal All in One transformer help
  6. Designing a noob-preamp (single supply)
  7. RIAA Pacific rookie attempt
  8. This may be a silly question...
  9. 1st pre amp build, 1/2 way anyways
  10. Stereo to mono
  11. Tone control schematic with surround sound (?)
  12. Linkwitz Transform Arrangement to optimize subwoofer response
  13. Need help....................
  14. to switch or not?
  15. line transformer matching impedance Icepower 50ASX2
  16. Hot Rodding the Musical Fidelity X-Pre
  17. Any experience with Elliott Sound VCA Pre-Amp
  18. Humm noise on pre McIntosh MX136
  19. Stupid Q ... what determines "signal ground" on a unity gain buffer?
  20. carver C-2 pre hum?
  21. LME49720 preamp for F5
  22. Audio Research LS-1 Schematic & Parts List?
  23. Help for MUSES 72320 DIY kit
  24. Middle Controls
  25. Dual Regulated Bugle Phono Preamp?
  26. How to run line level output to ground
  27. SSM2019BNZ for 'gainy' pre-amp?
  28. DBX Active Crossover
  29. Luxman C1000 preamp starts clicking on and off rapidly after 20 min
  30. Stereo + LFE (2.1)?
  31. Cat5 Audio Line Noise
  32. STP analog audio interconnect ex-Firewire
  33. Octal ccda inclosure build (lots of pics!)
  34. Question about speaker protection kit circuit
  35. Simple Question about Speaker Protection
  36. low pass filter
  37. Checking needed: 2way active crossover
  38. Cermet or conductive plastic
  39. any one have schematic of this cross over?
  40. Forte F-44
  41. multiple devices feeding a single line input
  42. op amp selection?
  43. Sound-card info needed?
  44. Reducing effects of floor vibrations
  45. Preamp kit recommendations
  46. Signal LED causing distortion
  47. Should I be worried about gain structure?
  48. Soundcard input protection circuit
  49. Balanced line receiver (INA134) - RFI caps - compromise between CMRR/RFI filtering
  50. simple questions: integrating pre and power amp
  51. Need help with subwoofer integration with ZAPH AUDIO SR71
  52. ss chinese preamplifiers?
  53. Help with Passive Summing Theory
  54. Exploring possibilities new downward expander design
  55. mark levinson jc2 defect
  56. PreAmp Voltage/Impedance
  57. LOC Vs. Amps High Level Inputs
  58. Preamp design, include gain bypass?
  59. Thoughts on this input selector PCB? How can I add volume control?
  60. Pot imbalance
  61. Power Supply Upgrade - Request Sanity Check
  62. ADC0804 Relay Attenuator
  63. Experience with edcor xsm2.4k-600 as preamp/dac output ?
  64. Baxandall tone topologies
  65. Volume (level) ... the bottom line
  66. Marchand XM-1 mystery parts
  67. Simaudio CP-8 Owners: Did you know that it was a Denon?
  68. Supply voltage vs performance
  69. 10 band equalizer based on LM833
  70. What kind of filter is this
  71. PS III Linear Control Center
  72. How loud?
  73. comparison idea concerning the villex passive booster jack
  74. Finally! the high gain I needed...
  75. John Curl's Blowtorch preamplifier part III
  76. SAE P101 cap replacement-help wanted
  77. Tracing Hum in Passive Line Level Filter
  78. Troubleshooting a preamp - sources of buzz/humm/hiss
  79. High Dc offset voltage on the input line
  80. Potentiometer selection for my diy project
  81. Pre-amp to power amp problem
  82. Op-amp for Single-Rail Supply
  83. what is the best route for a 2.5 system?
  84. Counterpoint SA-3 rebuild
  85. ground "loop" type issue with Android phones into class D amps
  86. Single ended to balanced conversion
  87. Leveling line signals to power amp
  88. OPA2134 Tilt Equalizer
  89. Removing a Crossover from a poweramp
  90. ls404 based active crossover try
  91. Equalizer
  92. Bose 901 Series IV ActiVe EQ schematic
  93. help with diy phono preamp
  94. PGA2310 preamplifier
  95. Opamp Line Attenuator and Buffer Question
  96. Tube Preamp with HT Bypass...
  97. 4 chanel Stereo Input Selector
  98. Bose 901 series I active equalizer DIY
  99. 110db SNR discrete buffered preamplifier with Vclip indicator
  100. 512-MPSA92 Replacement in MOX
  101. Help with "IPOD" in car audio application
  102. Transistor Preamplifier -part values for higher voltage rail.
  103. P37 pre from Elliot --lowering gain
  104. How to buffer the analog out put of a DAC chip
  105. 7.1 Switcher
  106. How to check circuit for oscillation?
  107. How to "Sum" L+R signals for a mono sub output?
  108. need btl schematic using op-amp
  109. 600:10k line stage transformers any use?
  110. JC-2 Clone Build
  111. Carver C1 preamp loud static "pop"
  112. Understanding and optimizing Ashly xover help?
  113. Current Feedback Opamps in simulation and practice.
  114. fluorescent peak meter
  115. DIY Preamp recommendations
  116. Active Crossover Design: How the drivers influence filter type/topology/slope?
  117. Sumo Athena II balanced?
  118. help me, please find a service manual for dbx386 for repair
  119. PGA2310 impedance questions
  120. Remote control kaput?
  121. Pre amplifier or not?
  122. line level strength - big boost required
  123. input selector, to use resistors at the inputs or not
  124. AH Pre line stage
  125. internal cable recommendation
  126. want to make a splitter box for use with mixer inserts
  127. Modding Ecler AC-6 talkover release
  128. ADC Sound Shaper 3 EQ
  129. Schematic wanted for parametric Equalizers from Behringer and IBANEZ
  130. What else? A PGA-preamplifier...
  131. Modding My ADC SS100-SL Equalizer
  132. Preamp Gain for NE5532
  133. Gain regulation on Counterpoint SA3000
  134. Any analog xovers as good as Ashly XR series?
  135. THAT 5171 Controlled By Arduino?
  136. Ground Loop in UREI 1176 compressor
  137. Handling inactive inputs in source selector
  138. How to split output from phono stage
  139. low pass and subsonic filter
  140. BEQ circuit
  141. Adding in RCA Outputs
  142. Wanted: 80Hz Linkwitz-Riley 24hz/octive low-pass filter
  143. Jumper wires & RFI in preamp
  144. Help with component selection for filter
  145. INKEL MX991
  146. Active Crossover Adjustment
  147. CS3318 based preamp - layout
  148. EAD Theatermaster Classic won't operate
  149. filter Q Question
  150. Buffering two signals together
  151. How to bias 2SK170BL in Boozehound Labs phono pre?
  152. Can I make a really simplistic line-level signal go mono one way, stereo in parallel?
  153. Aikido - approximate input impedance
  154. Ultimate analogue tone control or an audiophool overkill? :)
  155. A remote control preamp in the works
  156. Custom Equalizer Design needed
  157. Multichannel preamp
  158. Hafler Iris Preamp balance issue - fixed
  159. Acurus L10 Preamp Mods & Schematic
  160. Home made DSP / FPGA digital audio mixer
  161. Soundcraft LX7 Replacement parts
  162. Bonsai's practical buffer
  163. Help needed with an audio signal splitter solution
  164. Crosstalk?
  165. i want to throw something
  166. Optimizing resistor placement Vishay TX2575
  167. Input impedance of PRE vs sensitivity to disturbance
  168. PIC Controlled PGA 2320 8 Channel Preamp
  169. How to change a degree of volume pot rotation by remote control?
  170. tamura input transformer shield
  171. Need a help: Mark Levinson No26.
  172. LME49720 Pre amp PCB/Kit
  173. Faulty mixer inputs
  174. Basic home cinema wiring advice
  175. Diamond Cascode, a Diamond-like buffer/current booster
  176. Unusual high-pitched whistle caused by my Audio Pre-AMP
  177. Looking to build stereo mixer but can't find many schematics!
  178. Aureus preAmplifier
  179. strange! LM-4562 question
  180. Tube Preamp hummmmmm
  181. LCDuino-1 Processor, using non-latching relays help
  182. CS3318 PCB Layout
  183. Levels in an active three-way system
  184. Source selector using Analog switches or multiplexers - opinions?
  185. Yet another PGA23xx board...
  186. Concentric shaft Alps "Blue" pot
  187. Cleaning dusty printed circuit boards
  188. ad797 plus buf634
  189. Bypass - ceramic or film?
  190. tweeter crossover
  191. This pre-amp good?
  192. Remote Control Pot
  193. VU Meter ballistics
  194. The "AmpDuino" project
  195. Capacitors at 50v vs 25v on replacement in preamp power supply?
  196. Knocking sound coming from PCB
  197. Versatile quad-amp card
  198. 4-channel 20dB gain stage with unbal inputs and unbal+bal outputs: Any Interest?
  199. Just built a Hagerman Cornet 2 phono pre
  200. ad797 questions
  201. [Newbie]Audio bandpass filter design
  202. Wideband DCA preamp with shunt PS
  203. 3-way input selector + Attenuator + Balanced outputs?
  204. subwoofer circuit
  205. Motorised Volume Pot - Controller isolation
  206. Audio compressor to lower TV commercials-help needed
  207. AUS: Alpha 20/10 Preamp & Sigma 22 Builder Required
  208. 2ch passive stereo summing circuit?
  209. designing a 1-Hz lowpass with no DC error
  210. What is a preamp actually doing?
  211. Choosing attenuator for MF X-10D Clone
  212. some questions about DC servo mic pre's
  213. Need hekp with how to select a preamp
  214. Weird problem with a preamp with 3 band EQ module
  215. TEAC VU Meter Hookup
  216. input transformer frequency response?
  217. Help wanted checking vero layout for active 4 channel mixer
  218. Simple non-digital input selector
  219. dc on only one primary of the line trafo
  220. Volume potmeter Technics Su 8600
  221. Servo on non-inverting opamp ?
  222. Any suggestions to improve these output and input filters?
  223. simple solution for VU-Meter
  224. Combined Speaker-Amplifier Project
  225. Teac AN-60 Alignment
  226. 2.5v achieves lower distortion on LDR NSL32SR2
  227. Help Gain clone supply PCB design
  228. HOW TO MEASURE interference between e.g. 20kHz and 21kHz tones?
  229. 3-way signal splitter
  230. implimenting linkwitz's notch/dip filter for room eq
  231. Anyone seen this EQ before?
  232. ReCapping marantz av-9000 16v 13000uf
  233. Audio Processing
  234. Anyone know what these caps are for?
  235. Is coax needed to wire a microphone?
  236. How do I choose a preamplifier that would be compatible with this microphone?
  237. W06M Bridge Rectifier, equivalent substitute
  238. Preamplifier kit information
  239. Handling +4dBu/-10dBv and un/balanced
  240. Line receiver and driver pcb?
  241. 2 conductor shielded cable
  243. 20hz high pass on Ashly XR2000 - removable?
  244. Transformer Based Balanced Output & Impedance
  245. Poll for the participants of "John Curl's Blowtorch preamplifier part II"
  246. John Bowers Active Control Unit preamp: Info sought
  247. Looking for pointers on first DIY preamp please.
  248. Simple analog vu-meter driver ?
  249. Please pardon the noob question. need guidance
  250. Build a high pass filter for amplifier

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