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  1. can use la3161 as a simple solution in a car ?
  2. crossover commission/kit
  3. Switch both sides of input connections?
  4. Hammond 140QEX
  5. Current Amplifyer
  6. An Old Nikko power-supply section question
  7. THAT 202XT VCA + ?
  8. Need analog guru help on grounding
  9. iRig Pre Component Upgrade
  10. Calculating a TVC
  11. Balanced Microphone Preamplifier
  12. Electret Condenser Microphone preamp analysis
  13. LF Line Level Stage design to preceed class D amplifier
  14. Mic Preamp w transformer input: changing impedance
  15. Line level / unity gain vacuum tube circuits
  16. Interpret stereophile measurement data
  17. Diy passive pre and switch
  18. slow audio increase at turn on?
  19. Hammond Amplifier Modification Issue
  20. Would like some help with a "Crossover Isolator"
  21. Correct way to split line level inside dual headphone amp
  22. How can this work?
  23. Balanced input
  24. crossover / summer for "2.1" active or passive
  25. Need Advice for Bi-amping
  26. Too much DC at buffer's output
  27. passive pre-amp ?
  28. Salvaged Phono Preamp - Begginner Help
  29. Tape head amplification circuit
  30. Laptop to Guitar Amp cable. . . Resistor values?
  31. Hifi from german studio modules - help wanted
  32. Guard rings for op amps
  33. Tone control for Low bass selector and boost circuit
  34. "Lehmann" Buffer Output Transistors.
  35. Minuature Low Pass Filter
  36. Easy High-Pass Filter
  37. Analog signal control
  38. Buffer Stage
  39. Critique my first drawing / possible build [Active DI]
  40. Low pass filter for Bitstream DAC.
  41. Looking for 0-10V Analog Volume Control Circuit
  42. AVC
  43. looking for programmable eq chip / pcba module ??
  44. Another Modified PGA2311 kit with Arduino for volume control and input selection
  45. Kudies to/for the Tortuga Audio LDR3X.V2
  46. Parasound P/HP 850
  47. LECUA 1000 attenuator from Luxman ?
  48. Line Level Output to Guitar Amplifier Input
  49. is there an off the shelf preamp module that works with the apple remote?
  50. How about this sub crossover filter?
  51. help with 2 pole low pass filter/attenuator
  52. Zobel at the srpp input
  53. Preamp noise after PSU update
  54. Low level interconnect (RCA) measurements
  55. what are the blocks generally found in a pre-amp board?
  56. Carver ct-3 preamp
  57. Advice on a preamp/external volume control for use with active monitors
  58. Audiophile quality preamp
  59. Building a Line Level Mixer, Transformer advice needed
  60. Sowter type 3232
  61. Super tone controls-I need PCB
  62. L-pad attenuator on preamp output
  63. DI output protection from phantom power
  64. Getting Started on Preamp Design
  65. Balanced to unbalanced.
  66. Input device protection
  67. WTB LDR volume control PCB ?
  68. Adding Input Gain +/-
  69. Room correction using a modified Linkwitz Transform Circuit
  70. How to change active xover frecuencies
  71. non inverting opamp with gain
  72. Digital volume control for 7.1 preamp
  73. Current options for a budget active LLXO?
  74. low impedance high-pass filter
  75. AKG Perception 100 mic repair
  76. How do I configure a simple logic control
  77. PCB, Tone Control with Transistors and dual supply
  78. very very simple DJ mixer aka summing amp?
  79. Passive low pass filter for subwoofer
  80. Linn Exotik/S non DA version lock up problem
  81. Shine7 12au7 preamp builds?
  82. non-DSP delay - is it possible?
  83. Stevens & Billington TX102 Passive preamp Built
  84. Loading considerations in Filter design
  85. TEAD (Tom Evans Audio Design) Groove RIAA MC Phono Preamp - want simplified Schematic
  86. Diodes instead of input selector (insane newbie question)?
  87. Experience with anti-parallel electrolytic capacitors?
  88. Best wire for passive pre?
  89. Which Op Amp Supply Bypass Technique for Low Noise?
  90. Add MONO/DIM to DAC/Preamp
  91. Crackling from input cable (even when there is no input)
  92. Best sounding signal level relay?
  93. Mic preamp around transformer
  94. Questions on op amp settling time and quiescent current.
  95. question on crossover board layout
  96. Bugle 2 problem
  97. Rca Passive Summing Box
  98. RC Chain in a 3 Band Baxandall EQ Circuit?
  99. Parallel transformer output
  100. Modding Marantz PM-15S1
  101. Sony TA4300F Crossover
  102. Upgrading a commercial phono stage
  103. New Bonsai Preamp
  104. Help with line input switch
  105. Remember the thermal noise....
  106. Help with passive attenuator for headphone amp
  107. Do amp inputs interact with each other?
  108. 6n11 preamp hum
  109. need help with boombox pre-amp/tone control design
  110. Muses01 op amp mod for Rotel RSP-1098(+\-18v)?
  111. low pass filter for DAC output
  112. Driving headphone from speaker output - filtering layout
  113. Highpass mic filter
  114. suitable power supply for dozen opamps?
  115. Little sub preamp/phase circuit
  116. RCA Mixer/Combiner
  117. Offset Problem with Borbely JFET-Buffers
  118. op amp class a bias
  119. Effects of Opamp Loading?
  120. Alps RK27 Motorized Pot - Teardown
  121. TDA7439 tone control IC any good?
  122. 100HZ PLLXO
  123. Bourns PTD90 Series Potentiometer
  124. lowest load for line level equipment to not harm the output stage?
  125. Most important opamp?
  126. 5.1 decode in preamp?
  127. Preamp Recommendation For Millett "Engineer's Amplifier"
  128. Tone feedback loop- can you spot the problem?
  129. DIY turnable amplifier aka RIAA - newbie questions!
  130. Great Deal on RCA Interconnects (Canada)
  131. preamp for hlly tamp-90
  132. AD815ARB-24 availability in any online stores? couldnt find
  133. Super Chip Preamp v1.2 (LT1363)
  134. Opinion on differential low pass filter
  135. Active Low Pass
  136. Differential preamplifier
  137. trouble with varimu compressor design
  138. PGA2311 volume control.
  139. Active Crossover frequency response - help needed HH X300
  140. Suggestion For CFA Op-amp
  141. preamp/mixer combo
  142. 12 channel volume control unit?
  143. Documentation on designing preamps
  144. Clean Line Output? OPA627
  145. Active crossover with AD815?
  146. Carlos AD815 pre voltage supply recommendations
  147. Help with Sowter 1990 SUT wiring
  148. Line level rc lowpass clicking
  149. Attenuator for Passive pre amp, best sounding solution
  150. Source for custom-terminated interconnects ?
  151. Onboard JFET Instrument Low-Z Preamp Help?
  152. Why white noise is always present?
  153. How to implement a pop free/low distortion muting circuit?
  154. Suggestions Requested for Mini Buffer Preamp
  155. Mini-Me second edition tube phono preamp
  156. Balanced fixed H attenuator for line level
  157. impedance symptom
  158. How to link two cores with TRS connector?
  159. Turntable earthing woes
  160. tuac weight and tops preamp
  161. Suggestions for single bipolar input op amp?
  162. Pop/click free HW-based relay attenuator
  163. THAT 1646 PCB - help me review please
  164. new line-preamp
  165. Question on Rod Elliott's P088 op-amp based preamp
  166. Pot hum/external speakers
  167. Will this circuit work?
  168. wiring sub to tube stereo
  169. TI on Filter Noise
  170. Compressor design - Sedra/Smith book
  171. ultra low dist pre Sandman distortion null
  172. Grounding question in phono preamp with battery supply
  173. LME49990 in gain buffer - help please
  174. Khozomo MKII Attenuator review
  175. Which MM Phono Amp ?
  176. Transistors in Buffer Circuit Running Too Hot
  177. Building a complete Preamp with an Arduino, remote, volume and input control
  178. MOSFET's Rds in the signal path, when?
  179. Preferences for setting up an EQ
  180. One more volume control
  181. Shedding 2 awful junctions in the signal path
  182. Line level distribution
  183. INA217 gain calculation
  184. Does this circuit have gain?
  185. An interesting JFET-based active XO circuit from TNT Audio
  186. Peak detector reference voltage level
  187. Goldmund Mimesis 27 Preamp clone
  188. AKAI S3200XL unbal to balanced outputs with VT24499
  189. MooseFET preamplifier?
  190. 6ch(12ch) Volume Control for DSP/DAC/BUFFER/POWERAMP
  191. Parametric EQ after pre-amp
  192. TL072 VS NE5532
  193. Grounding question
  194. Need best tone control
  195. How to switch 2 Sources and 2 Amps
  196. Mic Preamp limitor/Automatic level controller
  197. Douglas Self PreAmp 2012
  198. Is this layout OK? Advice please :)
  199. Microphone Preamp balanced voltage levels
  200. PASSIVE PRE-AMPLIFIER BUILDER REQ
  201. active bass boost
  202. SSM2019 single chip preamplifier?
  203. Rane AC23B active crossover
  204. XD3 crossover?
  205. Muting Circuit
  206. Noticeable difference in low freqs between two channels on a Drawmer DL221 compressor
  207. The precise audio signal level control 5.1
  208. Yamaha a-320
  209. Why not Wye?
  210. Help with high DC at output of Forte clone
  211. Humming DRV134 balanced output.
  212. Problem with parametric equalizer
  213. HLLY AMK-II First (and last) Impressions
  214. Salas hotrodded DCB1 resistor tryouts
  215. NE5532 in quad TSSOP package or similar?
  216. Another low distortion buffer
  217. DBX-122 schematic
  218. Audible Illusions L1 background noise
  219. TDA1524A IC Pre-Amp
  220. Please confirm something basic for me
  221. Parasound P/PH-100 hum
  222. Sonographe SC22 schematics
  223. What makes Reference Line Preeminence so good?
  224. push switch pinout
  225. What is 'Good' Common Mode Rejection?
  226. mf x-p100 power supply
  227. Opamp Having Oscillation
  228. Yamaha MSP7 − 22pF between Op Amp inputs? Why?
  229. How to reduce measured noise floor in my DAC/opamp circuit
  230. Switch Types
  231. Simple MOSFET preamp
  232. The Kuartlotron - keantoken's simple error-correction superbuffer
  233. how much gain do i get on this preamp(ad797)?
  234. how to implement line level bsc on a full balanced setup?
  235. 3 channel quad mixer with front to rear pan
  236. Meridian 502 balanced output circuit
  237. kmtech 2 way, active x over, is it elliptical?
  238. Attenuator kit suggestions sought
  239. How do you create a low shelf with passives?
  240. harman opamp advice
  241. Help needed with a transamp mic preamp circuit.
  242. Kleos 2 Way JFET Crossover with EQ
  243. see this preamp circuit diagram
  244. pre-amp tune up
  245. Preamplifier with aux and mic inputs
  246. Schematic wanted for portable SONY Monaural Receiver ICF-6000L
  247. Need a high quality SS mic preamp kit
  248. Marantz 2270 Preamp
  249. Source selector without mechanical switch
  250. Imaging skewed to the left

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