imhififan
Responses from imhififan
| Having 2 different preamps to turn on the same amp via 12v trigger If the connection from the preamp to the power amp is XLR, by using a BobWire XLR1, there is no need to turn ON the BHK for HT. Connect the BHK to input A, the preamp/preamp to input B, and connect the 12V trigger output 1 of the BobWire XLR1 to ... | |
| After-market Solution to replace the D-8 power supply for McIntosh C8? Is there a solution that offers simple plug-n-play compatibility to power these things up? I don't intend to learn how to solder electronic components at 74 yo. While there are some tube preamp power supply products on the market, you still ... | |
| Having 2 different preamps to turn on the same amp via 12v trigger Depending on your connections, BobWire RCA1 or XLR1 should get the job done. https://www.amazon.com/stores/BobWireAudioProducts/Homepage/page/ | |
| Accuphase A-48S there's another way to convert to 120V, which is to swap the positions of the orange and yellow wires and swap the positions of the brown and black wires. Do you think it is OK? Yes, both the 100V and 120V setups have the two primary windings i... | |
| Accuphase A-48S @foolishman , Thanks for the photos, this time Accuphase is using a PCB instead of terminal block like before. Its connection method is still the same. Looks like your friend already understands how these connectors work! Simply swap the positio... | |
| Pass Lab Amp questions, back of amps, power cable & 12v trigger. I just thought it is odd that the 12v trigger must have the end cut off, striped & then bare wired to the black/ red terminal on the back of the amp. There's finished 3.5mm Male Jack to Bare Wire Open End TS 2 Pole cable. If you want to... | |
| Voltage conversion of Accuphase E-5000 Converting Accuphase amps from 100v to 120v is not straightforward as the above discussion illustrates. You can never be sure that it was done correctly or to Accuphase standards ("you can use a 680Ω 3W resistor to replace fuse F1"). The above di... | |
| How to bias a tube amp with a Multimeter Measure the resistance at test points + and - with the amplifier powered off. If you cannot get any resistance readings, you cannot bias the output tubes. If this is the case, the problem may be a bad meter probe or the amplifier test point is no... | |
| Voltage conversion of Accuphase E-650 @dbxdx5 While it is not necessary to bias the power amplifier after voltage conversion, I thought it would be a good idea to record the rail and bias voltages before conversion for future reference. | |
| Voltage conversion of Accuphase E-650 @dbxdx5 Yes, switch the voltage from 100V to 120V, leave jumpers J1 and J3 unchanged. | |
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| Audible Illusions Modulus 2C Tape Out? Unless the source is a turntable connected to the AI 2C phono input, most preamp circuits simply loop the line-level input signal to the tape output. Of course, there are exceptions to using active buffers, but I doubt that's the case with AI 2C... | |
| Voltage conversion of Accuphase A-65 or A-70 @foolishman Just wanted to let you know that I don't have any experience with A-80 voltage conversion, I'm just making recommendations based on photos and previous experience converting Accuphase amplifiers. I highly recommend using DBT to power... | |
| Voltage conversion of Accuphase A-65 or A-70 @foolishman Thanks for posting photos of Accuphase A-80. To convert the mains supply voltage from 100V to 120V, my suggestion is power up the A-80 with 100V mains, Use an AC voltmeter to measure the voltage between the yellow/brown and red/bl... | |
| luxman R-1030 8V 0.3A https://www.hilberink.nl/luxman/r1030/luxmansmr1030.pdf Page 16 https://www.amazon.com/GF680-Volts-Current-0-3A-Miniature/dp/B007XKWCTW |