View Full Version : Analog Line Level

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  1. Stereo + LFE (2.1)?
  2. Cat5 Audio Line Noise
  3. STP analog audio interconnect ex-Firewire
  4. Octal ccda inclosure build (lots of pics!)
  5. Question about speaker protection kit circuit
  6. Simple Question about Speaker Protection
  7. low pass filter
  8. Checking needed: 2way active crossover
  9. Cermet or conductive plastic
  10. any one have schematic of this cross over?
  11. Forte F-44
  12. multiple devices feeding a single line input
  13. op amp selection?
  14. Sound-card info needed?
  15. Reducing effects of floor vibrations
  16. Preamp kit recommendations
  17. Signal LED causing distortion
  18. Should I be worried about gain structure?
  19. Soundcard input protection circuit
  20. Balanced line receiver (INA134) - RFI caps - compromise between CMRR/RFI filtering
  21. simple questions: integrating pre and power amp
  22. Need help with subwoofer integration with ZAPH AUDIO SR71
  23. ss chinese preamplifiers?
  24. Help with Passive Summing Theory
  25. Exploring possibilities new downward expander design
  26. mark levinson jc2 defect
  27. PreAmp Voltage/Impedance
  28. LOC Vs. Amps High Level Inputs
  29. Preamp design, include gain bypass?
  30. Thoughts on this input selector PCB? How can I add volume control?
  31. Pot imbalance
  32. Power Supply Upgrade - Request Sanity Check
  33. ADC0804 Relay Attenuator
  34. Experience with edcor xsm2.4k-600 as preamp/dac output ?
  35. Baxandall tone topologies
  36. Volume (level) ... the bottom line
  37. Marchand XM-1 mystery parts
  38. Simaudio CP-8 Owners: Did you know that it was a Denon?
  39. Supply voltage vs performance
  40. 10 band equalizer based on LM833
  41. What kind of filter is this
  42. PS III Linear Control Center
  43. How loud?
  44. comparison idea concerning the villex passive booster jack
  45. Finally! the high gain I needed...
  46. John Curl's Blowtorch preamplifier part III
  47. SAE P101 cap replacement-help wanted
  48. Tracing Hum in Passive Line Level Filter
  49. Troubleshooting a preamp - sources of buzz/humm/hiss
  50. High Dc offset voltage on the input line
  51. Potentiometer selection for my diy project
  52. Pre-amp to power amp problem
  53. Op-amp for Single-Rail Supply
  54. what is the best route for a 2.5 system?
  55. Counterpoint SA-3 rebuild
  56. ground "loop" type issue with Android phones into class D amps
  57. Single ended to balanced conversion
  58. Leveling line signals to power amp
  59. OPA2134 Tilt Equalizer
  60. Removing a Crossover from a poweramp
  61. ls404 based active crossover try
  62. Equalizer
  63. Bose 901 Series IV ActiVe EQ schematic
  64. help with diy phono preamp
  65. PGA2310 preamplifier
  66. Opamp Line Attenuator and Buffer Question
  67. Tube Preamp with HT Bypass...
  68. 4 chanel Stereo Input Selector
  69. Bose 901 series I active equalizer DIY
  70. 110db SNR discrete buffered preamplifier with Vclip indicator
  71. 512-MPSA92 Replacement in MOX
  72. Help with "IPOD" in car audio application
  73. Transistor Preamplifier -part values for higher voltage rail.
  74. P37 pre from Elliot --lowering gain
  75. How to buffer the analog out put of a DAC chip
  76. 7.1 Switcher
  77. How to check circuit for oscillation?
  78. How to "Sum" L+R signals for a mono sub output?
  79. need btl schematic using op-amp
  80. 600:10k line stage transformers any use?
  81. JC-2 Clone Build
  82. Carver C1 preamp loud static "pop"
  83. Understanding and optimizing Ashly xover help?
  84. Current Feedback Opamps in simulation and practice.
  85. fluorescent peak meter
  86. DIY Preamp recommendations
  87. Active Crossover Design: How the drivers influence filter type/topology/slope?
  88. Sumo Athena II balanced?
  89. help me, please find a service manual for dbx386 for repair
  90. PGA2310 impedance questions
  91. Remote control kaput?
  92. Pre amplifier or not?
  93. line level strength - big boost required
  94. input selector, to use resistors at the inputs or not
  95. AH Pre line stage
  96. internal cable recommendation
  97. want to make a splitter box for use with mixer inserts
  98. Modding Ecler AC-6 talkover release
  99. ADC Sound Shaper 3 EQ
  100. Schematic wanted for parametric Equalizers from Behringer and IBANEZ
  101. What else? A PGA-preamplifier...
  102. Modding My ADC SS100-SL Equalizer
  103. Preamp Gain for NE5532
  104. Gain regulation on Counterpoint SA3000
  105. Any analog xovers as good as Ashly XR series?
  106. THAT 5171 Controlled By Arduino?
  107. Ground Loop in UREI 1176 compressor
  108. Handling inactive inputs in source selector
  109. How to split output from phono stage
  110. low pass and subsonic filter
  111. BEQ circuit
  112. Adding in RCA Outputs
  113. Wanted: 80Hz Linkwitz-Riley 24hz/octive low-pass filter
  114. Jumper wires & RFI in preamp
  115. Help with component selection for filter
  116. INKEL MX991
  117. Active Crossover Adjustment
  118. CS3318 based preamp - layout
  119. EAD Theatermaster Classic won't operate
  120. filter Q Question
  121. Buffering two signals together
  122. How to bias 2SK170BL in Boozehound Labs phono pre?
  123. Can I make a really simplistic line-level signal go mono one way, stereo in parallel?
  124. Aikido - approximate input impedance
  125. Ultimate analogue tone control or an audiophool overkill? :)
  126. A remote control preamp in the works
  127. Custom Equalizer Design needed
  128. Multichannel preamp
  129. Hafler Iris Preamp balance issue - fixed
  130. Acurus L10 Preamp Mods & Schematic
  131. Home made DSP / FPGA digital audio mixer
  132. Soundcraft LX7 Replacement parts
  133. Bonsai's practical buffer
  134. Help needed with an audio signal splitter solution
  135. Crosstalk?
  136. i want to throw something
  137. Optimizing resistor placement Vishay TX2575
  138. Input impedance of PRE vs sensitivity to disturbance
  139. PIC Controlled PGA 2320 8 Channel Preamp
  140. How to change a degree of volume pot rotation by remote control?
  141. tamura input transformer shield
  142. Need a help: Mark Levinson No26.
  143. LME49720 Pre amp PCB/Kit
  144. Faulty mixer inputs
  145. Basic home cinema wiring advice
  146. Diamond Cascode, a Diamond-like buffer/current booster
  147. Unusual high-pitched whistle caused by my Audio Pre-AMP
  148. Looking to build stereo mixer but can't find many schematics!
  149. Aureus preAmplifier
  150. strange! LM-4562 question
  151. Tube Preamp hummmmmm
  152. LCDuino-1 Processor, using non-latching relays help
  153. CS3318 PCB Layout
  154. Levels in an active three-way system
  155. Source selector using Analog switches or multiplexers - opinions?
  156. Yet another PGA23xx board...
  157. Concentric shaft Alps "Blue" pot
  158. Cleaning dusty printed circuit boards
  159. ad797 plus buf634
  160. Bypass - ceramic or film?
  161. tweeter crossover
  162. This pre-amp good?
  163. Remote Control Pot
  164. VU Meter ballistics
  165. The "AmpDuino" project
  166. Capacitors at 50v vs 25v on replacement in preamp power supply?
  167. Knocking sound coming from PCB
  168. Versatile quad-amp card
  169. 4-channel 20dB gain stage with unbal inputs and unbal+bal outputs: Any Interest?
  170. Just built a Hagerman Cornet 2 phono pre
  171. ad797 questions
  172. [Newbie]Audio bandpass filter design
  173. Wideband DCA preamp with shunt PS
  174. 3-way input selector + Attenuator + Balanced outputs?
  175. subwoofer circuit
  176. Motorised Volume Pot - Controller isolation
  177. Audio compressor to lower TV commercials-help needed
  178. AUS: Alpha 20/10 Preamp & Sigma 22 Builder Required
  179. 2ch passive stereo summing circuit?
  180. designing a 1-Hz lowpass with no DC error
  181. What is a preamp actually doing?
  182. Choosing attenuator for MF X-10D Clone
  183. some questions about DC servo mic pre's
  184. Need hekp with how to select a preamp
  185. Weird problem with a preamp with 3 band EQ module
  186. TEAC VU Meter Hookup
  187. input transformer frequency response?
  188. Help wanted checking vero layout for active 4 channel mixer
  189. Simple non-digital input selector
  190. dc on only one primary of the line trafo
  191. Volume potmeter Technics Su 8600
  192. Servo on non-inverting opamp ?
  193. Any suggestions to improve these output and input filters?
  194. simple solution for VU-Meter
  195. Combined Speaker-Amplifier Project
  196. Teac AN-60 Alignment
  197. 2.5v achieves lower distortion on LDR NSL32SR2
  198. Help Gain clone supply PCB design
  199. HOW TO MEASURE interference between e.g. 20kHz and 21kHz tones?
  200. 3-way signal splitter
  201. implimenting linkwitz's notch/dip filter for room eq
  202. Anyone seen this EQ before?
  203. ReCapping marantz av-9000 16v 13000uf
  204. Audio Processing
  205. Anyone know what these caps are for?
  206. Is coax needed to wire a microphone?
  207. How do I choose a preamplifier that would be compatible with this microphone?
  208. W06M Bridge Rectifier, equivalent substitute
  209. Preamplifier kit information
  210. Handling +4dBu/-10dBv and un/balanced
  211. Line receiver and driver pcb?
  212. 2 conductor shielded cable
  214. 20hz high pass on Ashly XR2000 - removable?
  215. Transformer Based Balanced Output & Impedance
  216. Poll for the participants of "John Curl's Blowtorch preamplifier part II"
  217. John Bowers Active Control Unit preamp: Info sought
  218. Looking for pointers on first DIY preamp please.
  219. Simple analog vu-meter driver ?
  220. Please pardon the noob question. need guidance
  221. Build a high pass filter for amplifier
  222. Critique on success of this subwoofer cutoff project?
  223. Need gain AMOUNT for mobile phone/pc sources
  224. re-replacing 2sk213/j76 transistors help
  225. Preventing crossover between mixers
  226. RCA LMI- 32215 A - for recording studio.
  227. Rane pot help please...
  228. Simple low voltage tube preamp stage
  229. HELP me design a discrete current sinking positive V regulator
  230. True Biamping and Active crossovers info request
  231. Question about hypex balanced vs unbalanced
  232. Soundcraftsmen
  233. very small noob question project 88
  234. Help with cable conundrum!
  235. P7 Pre amp Trouble
  236. Party-line / Full-duplex intercom - mixing audio signals
  237. ZSP1 preamp gain
  238. Acurus L10 Powersupply
  239. Building an Analog to Digital Converter Unit...
  240. DIY pre amp board
  241. Opamp power bypass
  242. Tone Control - Volatage range for TL072/LF252-N
  243. Stereo volume attenuation
  244. Quad channel volume control
  245. Work? L, R RCA inputs -> 1 XLR out?
  246. Impedance matching pre -> power.
  247. LME49740 vs TL074, design considerations and stability
  248. Solid state R2R attenuator using analog switches or multiplying DAC
  249. MF nuvista source selector problem again
  250. What do we think about solid-state potentiometers?

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