View Full Version : Analog Line Level

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  1. Does an Op Amp Voltage Follower Operate in Class A?
  2. My boozehound phono stage build
  3. Pre amp kit
  4. balanced preamplifier based on LME49990
  5. Merging two channels with passive low passes
  6. Old Colony Sound Lab T-2D Line Amp - Any Info?
  7. Impedance Bridging and Isolation Tranformer
  8. TDA7315 chip parameters interpretation
  9. MFP-102 N fet compatibility
  10. What is the effect of a 22K res in series with a 25K volume pot?
  11. Senior Project: Bandpass Equalizer pedal
  12. [WANTED] Mark Levinson No 26S Service Manual/Schematic
  13. ORTF is best for stereo recording
  14. A zero impedance preamp and CMRR
  15. good preamp
  16. calculate crossover with Re or impedance ?
  17. Op-Amp Preamp Circuit for Electret Mic
  18. Simple Router (then bass management)
  19. Second order shelving filter
  20. Help with component selection.
  21. passive to tame 8khz peak
  22. Hafler SE100 Preamplifier / Symmetric B1 buffer hybrid
  23. Adcom GFP-750 -Needs Repair
  24. Variable gain op-amp for volume control (vs normal voltage divider pot)
  25. Germanium Transistor and FET opamp
  26. 5 zone preamp based on Arduino controlled optocoupler
  27. How to select the right impedance for volume control
  28. In vehicle Pre-amp for mic (12+ VDC)
  29. Resistor-Diode-Relay Logic Source Selector
  30. 3 into 1 input the other way round
  31. Nagging Ground Issue
  32. Looking for Princeton Applied Research 115 MANUAL
  33. Active Band Pass Filter with +/- Gain
  34. Components source
  35. Guitar ABY or Headphone Amplifier?
  36. rod elliot p88 preamp knob arrangment
  37. C-Mos opamps in audio preamplifiers
  38. Cheap, balanced XLR passive pre?
  39. DIY crossover - Sallen-Key?
  40. Hafler 915 preamp cap question
  41. analog 3.5mm to digital usb possible?
  42. Mixer Pre-amp
  43. DIY tube preamp - help with choosing the right kit
  44. opamp channels mysteriously mixing ¿quantum thing or me too dumb?
  45. MC-22 schematic question
  46. unbalanced/balanced to balanced converter
  47. My line buffer preamp
  48. Attenuating Preamp Filter Question
  49. biamping with one DAC
  50. Audiophile active crossover
  51. adding EQ without screwing up sound; few questions...
  52. SSTART Pcb and power supply project
  53. Help with a simple envelop detector filter. (averaging the signal)
  54. audio output switch? Monitor Controller
  55. Very simple volume control with IR remote
  56. JFETs and MOSFETs biasing questions
  57. I need advise on audio mixing boards?
  58. pre amp output
  59. OPA134 Amp Help
  60. OPA134
  61. Capacitors voltage rating
  62. Capacitors voltage rating
  63. attenuation on dac output with U-pad
  64. passive preamp
  65. preamp necessary?
  66. Will phono pre > passive pre > amp work well enough?
  67. 60Hz hum problem, please help
  68. distortion cancellation for diode limiter
  69. electret mic preamp for micro ADC
  70. Understanding "Voltage - Input Offset" Parameter
  71. Schade MOSFET + Feedback Line Amp
  72. Preamp or receiver?
  73. Sony BX-270 Datasheet Wanted
  74. Classe Audio DR6 Bias
  75. Dual gang potentiometer for 'mixer'
  76. Aikido Preamp Bass & Treble Controls
  77. Tried active crossover, mean hum...
  78. How to use TDA7439 for center and subwoofer
  79. Active notch filter
  80. simple pre amp volume control with seperate mono out
  81. Help me wire up my SUT correctly (Tamura TKS-27)
  82. How can I split a mixer bus?
  83. Beau's Bias Circuit Schematic
  84. What should be included in a subwoofer lowpass filter?
  85. Potentiometer volume control treble loss bleed
  86. Adcom GFP 815 Pre Amp-Any users?
  87. speaker out to preamp out while driving speaker
  88. 6dB Active crossover
  89. Replacing volume pot from 100K to 50K reduces gain?
  90. Dual Ganged Stereo Volume Control
  91. McIntosh/Conrad Johnson pairing
  92. Input Impedance Question
  93. Active studio monitors/ crossovers
  94. new discrete opamp for line preamplifier
  95. Music Angel Pre Amp
  96. Tilt Equalizer Filter
  97. Parametric EQ based bass boost circuit
  98. Power On Delay/Loss of AC Detector Relay
  99. Balanced Line Driver with DRV134
  100. PGA3211 6.1 assembling
  101. PGA2311 code
  102. SMD High-Voltage Discrete Diamond Buffer
  103. How best to implement image mode controls
  104. Preamp has unwanted delay (and hum)
  105. Pot values in LM1036 preamp circuit
  106. simple three steps attenuator
  107. Behringer Eurorack UB1622fx PRO schematic
  108. Need help with Coustic XM-5e Crossover
  109. Small Fader + Volume control for Car
  110. PGA2311 Evaluation
  111. Are these pots what I need for my preamp?
  112. IR Remote Control
  113. That Corporation 1200 , 1203 , 1206 circuits
  114. portable set field mixer/ mic pre
  115. Compact simple EQ
  116. Digitally controlled pot distortion?
  117. Help me Choose Between A and B
  118. Quad Eight Electronics EQ712
  119. Adding a line level output to PGA2311 preamp
  120. Using Joachim Gerhard Filter Buffers as balanced crossover
  121. Impedance measuring jig and iSEMcon kit
  122. LM1036N Potentiometer Type
  123. 4558d
  124. 10M45 as simple preamp...
  125. Kenwood c-2 balance pot
  126. Attenuator Impedance for Adcom GFA-535?
  127. McIntosh C712 Preamplifier - Schematic wanted
  128. Speaker Combination in Custom Installation, please help
  129. 5 band equalizer, need help!!
  130. Parasound P/HP-850 Preamp Problem
  131. Crossover between pre and power amp for sub
  132. miniDSP pre-amp & volume control idea
  133. Klark Teknik Upgrae for 2ch
  134. signal level
  135. THAT 1200 Balaced Receiver IC?
  136. Patch Bay With Buffered Splitter/Channel Inputs Ideas
  137. Can't seem to get OpAmps to work
  138. Yamaha Equalizer 1027 service manual wanted
  139. Yamaha RX-V480 Tuner / FM Bands Wacky
  140. Discrete MOSFET 12db High Pass Filter
  141. ESP Proyect97 PCB
  142. Christmas Project - Audio Analyser
  143. HELP : what wattage for resistor ?
  144. x'over for a sub?
  145. Overlay stereo with mono, without losing stereo?
  146. Hi Level Amp output connect to RCA input
  147. Uneven Hafler 110 output
  148. Preamp-Buffers - simple idea
  149. OPA1612 compared to OPA2228(and a lil question about caps)
  150. How to wire up Audio Matching Transformer?
  151. VU meter arduino project help
  152. 8ch ADC
  153. Passive mixing network -- calculating total loss?
  154. DIY 3 way active crossover: as Christmas Holiday Project
  155. Upgrading the SM Pro AUDIO DI 4V
  156. fully balanced line with THAT 1206 plus 1646
  157. GHOST in 3 band graphic equalizer!! SOS!
  158. Weak bass problem...
  159. Please help me to debug the Lighter Note Attenuator
  160. Yet another remote volume control
  161. Questions about AC coupling and opamp biasing
  162. Request for Guides/Explanation Regarding Audio Mixer Circuits
  163. Preamp mod with a low cut shelf filter
  164. Linn Kairn repair
  165. Filter Bass and treble to the input of a microprocessor
  166. unbalanced to balanced 4 ch kit
  167. I need a super bass tone control
  168. Active Crossover for Open Baffle 2-way
  169. Simplist and tiniest PGA2320 kit out there?
  170. Impedance matching and 30dB drop
  171. Are there many people using BNC out there? or RG6 Quad Shield?
  172. output level of dvd playre?
  173. Suggestions for dual PS
  174. Yet Another IR Remote Volume Controller? No, I want one WITHOUT uC
  175. best balanced volume control solution ?
  176. help with muting relay
  177. Need help: Input selector control for 6 channels
  178. Opamp rollers and fiddlers this is for you.
  179. Good quality active preamp
  180. Convert mini Pre-amp from AC to DC power
  181. Volume control, Evil Mad Scientist style
  182. McIntosh C28 With Bad Transformer
  183. analogue active filter: MFB or Sallen Key?
  184. Help with 6-Bit R-2R Relay Attenuator
  185. Current conveyor as a voltage amplifier
  186. DIY monitor controller modules order…
  187. Active crossover component suggestions?
  188. can a preamp be used directly for headphone?
  189. Sharing a Single Inductor for Multiple Passive LR Filters?
  190. Audio Research LS-3 power transformer
  191. Lil Pre Amp
  192. Preamp OP-AMP...help.
  193. looking to try to split 80hz from an active stereo 3 way
  194. PGA2311 LCD Volume Remote Control+GOLD RCA Jeff Rowland
  195. A new fully analog FM modulated wideband optical transport Open Standard.
  196. wiring schematic for DPDT on-on-on toggle selector
  197. Mods for Denon AVR receiver or pre-amp?
  198. Mods for Denon AVR receiver or pre-amp?
  199. A question of volume control
  200. Cable Questions
  201. Interconnect cable Recommendations
  202. Another simple project I can't do. Using DAC from CDP
  203. Can i make a balanced preamp only using OPA2134 ?
  204. When is the Aikido going to be on sale again? is there a group buy I can get in on?
  205. Swapping potentiometer
  206. What should I be searching for
  207. Signal booster for cd player
  208. Preamp output relay - or other device
  209. Matching my silonex LDR
  210. Ballanced Unballanced what does it mean??
  211. LP/HP crossover for 2.1 DIY preamp?
  212. Biamp EQ-210 as a "Studio" EQ?
  213. Current noise between DC coupled op amps?
  214. Soft Clipper Central Station?
  215. Request active sub xo schematic
  216. Multichannel splitter and gain structure control box
  217. compact stackable relay attenuator - something new
  218. DIY Crossover/Filter: Power Handling
  219. Getting to know the DOODs ...
  220. LED battery indicator
  221. LME49713
  222. Tube preamp kit from ebay - worth my time?
  223. small pre-amp control board design help, I will pay :-)
  224. Value of Stepped Attenuator for Passive Amp.
  225. Differential Line Driver - Impedance Questions
  226. opa 2889 buffer circuit
  227. Help needed with diy outpout switcher relay based
  228. How to make a volume control 50cm from pre-amp?
  229. MAT02 transistors on eBay, are they genuine?
  230. Newb interested in DIY preamp
  231. Help hooking up a car VU meter unit to a home AV reciever
  232. Modular Preamplifier with IC Class A (SAM Electronic Circuits)
  233. Discrete opamp vs regular op amps
  234. Bob Cordell's VinylTrak
  235. NE5532 Tone Control
  236. Muting arrangements for ESP kits: P05B and P09B
  237. Schematics for c3m based preamp
  238. TA 377A preamp
  239. preamp and active filter for class AB amp
  240. Getting a PGA2310 to be silent
  241. SPL EQ Magix studio mic preamp
  242. What's wrong with this typicial preamp circuit?
  243. How Many Line-Level Components?
  244. Need to make a simple balance control
  245. DRV134 and protection diodes
  246. Passive line level 3th order RC XO with no insertion losses?
  247. That 1646 balanced line driver PCB
  248. Help with a PLLXO
  249. LME49990 design note
  250. Cg in THAT 1512

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