Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,401
|
Post by Bigman80 on Dec 19, 2020 12:07:47 GMT
 Getting closer. ISS and power switch wired up in the little time I had this morning. Power on check and voltage readings on the Power 686 checked, and all is as it should be. I have been trying to keep it tidy as I go.  I am pleased so far with my first "DIY" build. Macca will be pleased to know that the power on LED is Blue.  That looks tidy! |
|
|
|
Post by macca on Dec 19, 2020 12:21:11 GMT
It does look tidy. But research shows that using a blue LED will make it sound thin and bright. Orange if you want warm and organic. I give you a week before you swap it out for the proper colour |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 19, 2020 12:22:45 GMT
Getting closer. ISS and power switch wired up in the little time I had this morning. Power on check and voltage readings on the Power 686 checked, and all is as it should be. I have been trying to keep it tidy as I go. I am pleased so far with my first "DIY" build. Macca will be pleased to know that the power on LED is Blue. That looks tidy! That is because it is still missing half the cables.... |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 19, 2020 19:02:04 GMT
 It does not work as expected.... Time to troubleshoot why. It is really quiet. I suspected the Gaurdian 686s, so I removed those, and it makes no difference. 
|
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,401
|
Post by Bigman80 on Dec 19, 2020 19:22:30 GMT
It does not work as expected.... Time to troubleshoot why. It is really quiet. I suspected the Gaurdian 686s, so I removed those, and it makes no difference. Oh no!!!! |
|
|
|
Post by sq225917 on Dec 19, 2020 19:33:59 GMT
Don't worry, if you have the right voltages in all the right places and it's making sound then there's only a few things.
1. Check the input wiring, probably easiest if you just wire the rca up first time round. Rca centre pin to positive input, rca gnd to input negative and to input gnd. I'd use three wires from the rca lead, makes life easier than jumping.
2. Running it just off the rca will half the output volume as it halves the voltage swing at the input.
3. Remove the output protection to make sure its not that, just wire in a crap speaker.
My money is on it being input wiring.
|
|
|
|
Post by sq225917 on Dec 19, 2020 19:35:20 GMT
Let's have a close up on the input wiring at pcb and rca
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 19, 2020 19:57:58 GMT
Don't worry, if you have the right voltages in all the right places and it's making sound then there's only a few things. 1. Check the input wiring, probably easiest if you just wire the rca up first time round. Rca centre pin to positive input, rca gnd to input negative and to input gnd. I'd use three wires from the rca lead, makes life easier than jumping. 2. Running it just off the rca will half the output volume as it halves the voltage swing at the input. 3. Remove the output protection to make sure its not that, just wire in a crap speaker. My money is on it being input wiring. Output protection has been removed. I have one channel working ok. Looking at the second. |
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,401
|
Post by Bigman80 on Dec 19, 2020 20:00:31 GMT
Don't worry, if you have the right voltages in all the right places and it's making sound then there's only a few things. 1. Check the input wiring, probably easiest if you just wire the rca up first time round. Rca centre pin to positive input, rca gnd to input negative and to input gnd. I'd use three wires from the rca lead, makes life easier than jumping. 2. Running it just off the rca will half the output volume as it halves the voltage swing at the input. 3. Remove the output protection to make sure its not that, just wire in a crap speaker. My money is on it being input wiring. Output protection has been removed. I have one channel working ok. Looking at the second. Oh, so maybe the speaker protection isn't right? |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 19, 2020 20:08:22 GMT
|
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,401
|
Post by Bigman80 on Dec 19, 2020 20:09:00 GMT
🤣🤣🤣 No, I mean did you build it or did it arrive faulty....sorry, wasn't clear! |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 19, 2020 20:10:35 GMT
Output protection has been removed. I have one channel working ok. Looking at the second. Oh, so maybe the speaker protection isn't right? I removed the Guardian 686s to help with trouble shooting. It made no difference. I was a connection somewhere. I have re-done them all and we are in business. No magic smoke has escaped..... Music has started coming out from the speakers. I will fit the Guardians back in to the circuit tomorrow. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 19, 2020 20:11:26 GMT
🤣🤣🤣 No, I mean did you build it or did it arrive faulty....sorry, wasn't clear! That was a happy smiley.... The Mod 686 is working... |
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,401
|
Post by Bigman80 on Dec 19, 2020 20:13:31 GMT
Oh, so maybe the speaker protection isn't right? I removed the Guardian 686s to help with trouble shooting. It made no difference. I was a connection somewhere. I have re-done them all and we are in business. No magic smoke has escaped..... Music has started coming out from the speakers. I will fit the Guardians back in to the circuit tomorrow. Phew!! |
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,401
|
Post by Bigman80 on Dec 19, 2020 20:13:52 GMT
🤣🤣🤣 No, I mean did you build it or did it arrive faulty....sorry, wasn't clear! That was a happy smiley.... The Mod 686 is working... Oh I thought it was "Cheers.... obviously" lol |
|
|
|
Post by brian2957 on Dec 19, 2020 21:16:30 GMT
 Well done mate
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 19, 2020 22:25:56 GMT
I have a feeling it is going to be a late night....
Sounds awesome, as people who already own these know.
I need to reposition the feet at the rear. I forgot how big this case was, until I put it in the rack. It’s massive!
|
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,401
|
Post by Bigman80 on Dec 19, 2020 22:35:37 GMT
I have a feeling it is going to be a late night.... Sounds awesome, as people who already own these know. I need to reposition the feet at the rear. I forgot how big this case was, until I put it in the rack. It’s massive! Haha, welcome aboard! They really are superb amplifiers but until you hear one, you don't know. It takes some convincing to get people to take these on so well done! |
|
|
|
Post by antonio on Dec 19, 2020 22:40:02 GMT
Well done Cagey, you've done a grand job and certainly haven't wasted anytime
|
|
|
|
Post by gninnam on Dec 19, 2020 22:53:59 GMT
Glad you managed to get through the build - well done
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 20, 2020 8:27:07 GMT
I am loving this amp.
It does exactly what the Modulus -86 did, but more of it.
To coin some cheesy hi-foo speak, it is like someone has lifted a veil off the speakers, or someone has cleaned the window.
It has got great grip on the speakers, and full credit to the dealer, they certainly like a few more watts than I was originally giving them.
My daughter (thanks for the missing word correction Alan) appreciated the extra power on the theme songs from Frozen and Frozen 2, so money well spent in my book.
|
|
|
|
Post by firebottle on Dec 20, 2020 8:47:55 GMT
'daughter' ? Last line ^^^^
|
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,401
|
Post by Bigman80 on Dec 20, 2020 8:48:54 GMT
I am loving this amp. It does exactly what the Modulus -86 did, but more of it. To coin some cheesy hi-foo speak, it is like someone has lifted a veil off the speakers, or someone has cleaned the window. It has got great grip on the speakers, and full credit to the dealer, they certainly like a few more watts than I was originally giving them. My appreciated the extra power on the theme songs from Frozen and Frozen 2, so money well spent in my book. Yes....that's exactly what it's like. The 686 is what I recently described as "unobstructed listening" You'll get more from it as it runs in. Really pleased it's up and running. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 20, 2020 9:24:08 GMT
The bass power is something else.
I used to run a small sub for low level listening. It does not need to be turned on now.
|
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,401
|
Post by Bigman80 on Dec 20, 2020 9:42:03 GMT
The bass power is something else. I used to run a small sub for low level listening. It does not need to be turned on now. Hahaha ...oh yes.....weight, presence and depth. You'll be listening to this for days matey. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 20, 2020 9:45:26 GMT
The bass power is something else. I used to run a small sub for low level listening. It does not need to be turned on now. Hahaha ...oh yes.....weight, presence and depth. You'll be listening to this for days matey. I hope so! |
|
|
|
Post by macca on Dec 20, 2020 9:47:55 GMT
Congratulations! It'd been a great build thread too.
|
|
bigbird
Regular
The Racing Snake
Posts: 200
|
Post by bigbird on Dec 20, 2020 9:52:07 GMT
Congrats and well done mate. Lovely tidy job. You’d never know it was a first bash.
I hope I can do mine the same justice. I ordered the last parts yesterday so hopefully within a couple of weeks I will be starting my own journey.
|
|
Bigman80
Grandmaster
The HiFi Bear/Audioaddicts/Bigbottle Owner
Posts: 16,401
|
Post by Bigman80 on Dec 20, 2020 10:10:07 GMT
There's so much value in the DIY audio market. This is a stunning amp bigbird and I am sure you are gonna love it. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 20, 2020 11:10:43 GMT
Guardian 686s are now in the circuit.
A credit to Tom, is that you would be hard pushed to know it.
I declare this build complete....
|
|
Well done mate 
