View Full Version : Analog Line Level

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

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