imhififan

Responses from imhififan

Remote Volume Control for my Decware amp
Khozmo Passive Preamp DUALMONO without input selector https://khozmo.com/product/dualmono-without-input-selector-rca-xlr/  
Cambridge Azur 851A Problem! Help!!
What model is the replacement switch? Can you provide a link? "Standby mode" 2.1 watts indicates that there is a problem with the standby power supply, and it is best to send it to a service center for repair.    
Driving speakers in more than one room
I’ve seen on this topic seem to indicate that connecting a fixed line out to an input on another unit will sometimes work and other times not, depending on how the input and output circuits are designed on the two integrated amps/receivers involv... 
Ripple current Q for amp capacitors
I’ve been incredibly paranoid of not getting the right part in there. Question on that above though as that’s interesting.. I assume at the time EAD had capacitance testers, and that every cap in this size they got, would be tested first to see ... 
Ripple current Q for amp capacitors
Can the CD store basically 175,000uf if needed? No, that’s not how it works, modern electrolytic capacitors typically have a tolerance range of ±20% being a common standard. This means that a capacitor labeled with a specific capacitance value ... 
Ripple current Q for amp capacitors
As far as which of the two caps to use: you’d have to do a little bit of research and see if both versions of the CDE caps were available at the time of the EAD1000 production. If so, then the designers made the choice.  According to the specif... 
Accuphase E-280 Voltage Conversion (100V to 120V)
@sonicrage  The Accuphase E-280 power transformer has two primary windings, connecting the windings in parallel will produce a 100V or 120V primary, and connecting the two windings in series will produce a 220V or 240V primary. Above is the 10... 
Help to Identify AC Connector
DC blockers are easy to make if you're handy. Otherwise, try the Emotiva CMX2.  
Help to Identify AC Connector
It is a direct wiring socket, please refer to the manual for wiring method: https://www.epever.com/wp-content/uploads/2021/09/IPower-Plus-Manual-EN-V3.4.pdf If you prefer to use some kind of connector, maybe you could try some wire ferrules, jus... 
b & w 804 s
speakers are cutting at not so high volume What's happening on both speakers is rare, maybe an upstream component that's the culprit?    
Stereo to mono bridge/phase inverter for AVA ST70 amplifier
https://skyfiaudio.com/products/electronics-service-labs-esl-bridging-amplifier-device If you are DIY handy, use a transformer is an easy way to get the job done.    
Accuphase A-48S
@foolishman  Thank you for the photo. I googled the label "HPT 3512-5" on the transformer and found the Cleem Linear Transformer 1.5VA-3512 series. You will need to replace it with a transformer rated for 230V. There are a lot of uninstalled comp... 
Accuphase A-48S
@foolishman  Sorry, I can't clearly see and identify any components in the photo due to obstruction of wires. Can you post some clearer photos showing the auxiliary transformer? Is that power switch assembly board? Thanks          
Accuphase A-48S
Meanwhile, do you think it is OK to change only connecting J3, J6? Or do I need to change other boards like the sub-transformer board? Sorry for my ignorance, since the preamp doesn’t have a standby/power-on function, I didn’t know there was a ... 
Accuphase A-48S
imhififan 2,219 posts 04-21-2025 at 01:50pm      @foolishman  Because of I don't have the preamp on hand, I can only assume it's a 100V, 120V and 230V multi-tap power transformer. The voltage settings are as follows: J1, J...