Item 25 – Complete (Genuine) IRAUDAMP5 DIY amplifier
This is being sold as a "partially finished" DIY project. Everything works, but I make no guarantees about safety or suitability.
In fact, the only thing I can guarantee is that the new owner will need to add a mains fuse, as currently there is not one in the amp. As a result I will be disconnecting the mains internally and placing the mains inlet inside the chassis. The new owner will need to hook this up properly with a fuse before use.
There is a small regulated power supply, and the IRAUDAMP5 inside, and the back has two banana sockets for each channel, and two RCA inputs along with the mains inlet.
This was a great amp for driving the H-frame subwoofers or the little TC9 speakers when I was using them with my PC.
This is being sold as a "partially finished" DIY project. Everything works, but I make no guarantees about safety or suitability.
In fact, the only thing I can guarantee is that the new owner will need to add a mains fuse, as currently there is not one in the amp. As a result I will be disconnecting the mains internally and placing the mains inlet inside the chassis. The new owner will need to hook this up properly with a fuse before use.
There is a small regulated power supply, and the IRAUDAMP5 inside, and the back has two banana sockets for each channel, and two RCA inputs along with the mains inlet.
This was a great amp for driving the H-frame subwoofers or the little TC9 speakers when I was using them with my PC.
Attachments
Item 26 – One like-new pair of RCF MR10N301 10" pro audio midranges
These are a brand new pair of RCF MR10N301 10" sealed-back midrange drivers. They were used very briefly for measurements in a prototype system, then packed back up when the project was called off.
They are extremely efficient (102dB 1W/1m, or 110dB in a horn) and cover from about 300Hz up to 2000Hz with a very flat response.
Distortion is extremely low, and both drivers are almost perfectly matched.
These would make a great pairing with a horn from 1500Hz up and a 15-18" bass driver to cover everything below 300Hz. A large classic 3-way which would land in the high 90's for total system efficiency.
I have some measurements for these, and can provide them to the buyer.
These are a brand new pair of RCF MR10N301 10" sealed-back midrange drivers. They were used very briefly for measurements in a prototype system, then packed back up when the project was called off.
They are extremely efficient (102dB 1W/1m, or 110dB in a horn) and cover from about 300Hz up to 2000Hz with a very flat response.
Distortion is extremely low, and both drivers are almost perfectly matched.
These would make a great pairing with a horn from 1500Hz up and a 15-18" bass driver to cover everything below 300Hz. A large classic 3-way which would land in the high 90's for total system efficiency.
I have some measurements for these, and can provide them to the buyer.
Attachments
No... Class A or Class AB power amps.
See details here:
http://www.diyaudio.com/forums/soli...amplifier-based-lme49830-lateral-mosfets.html
Looks like all the Wikis are down for some reason, but there's more info there too.
Regards,
Owen
Item 27 – Lots of Toroidal Transformers
Alright, I've got a list of 10 transformers attached to this post. Please open it to see the details. This is all I have.
Please note that all voltages listed in the second column were measured under light load (25W) and are for a 120VAC input. Even if the transformer is a 240V primary, it was measured with 120VAC on the primary. As a result, these voltages would need to be doubled to get the actual rated secondary voltage for those transformers that are rated for 240VAC and will be operated at 240VAC.
I will post this list on the first page with the status of each transformer.
Pictures and list attached.
Alright, I've got a list of 10 transformers attached to this post. Please open it to see the details. This is all I have.
Please note that all voltages listed in the second column were measured under light load (25W) and are for a 120VAC input. Even if the transformer is a 240V primary, it was measured with 120VAC on the primary. As a result, these voltages would need to be doubled to get the actual rated secondary voltage for those transformers that are rated for 240VAC and will be operated at 240VAC.
I will post this list on the first page with the status of each transformer.
Pictures and list attached.
Attachments
Last edited:
as mentioned Owen/Opc is moving from Ottawa to San Diego a distance of about 4700 kilometres. His house was packed up on Friday and he and his family flew out/down to SanDiego on Sunday. When I moved from Montreal to Ottawa many years ago it took the movers 10 days to move my stuff only 200km.
If you bought stuff from Owen and he didn't ship it before the movers cleaned out his house, you may have to wait a while. I am pretty confident that his employer did not pay to have his furniture and diy stuff shipped by plane to his new home. Hopefully its not going via the Panama canal. Please be patient.
If you bought stuff from Owen and he didn't ship it before the movers cleaned out his house, you may have to wait a while. I am pretty confident that his employer did not pay to have his furniture and diy stuff shipped by plane to his new home. Hopefully its not going via the Panama canal. Please be patient.
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