That was very different to the others and much better
SET amp owners thread
- Thread starter bonzo75
- Start date
That was very different to the others and much better
Welcome Cesar!
César is a good friend, a great great musician of the São Paulo Symphonic Orchestra. He plays violin.
César is in São Paulo.
I am in João Pessoa, in the Northeast of Brasil.
About 3000 km to São Paulo.
I was in Rio last week. Great and beautifull city.
See where I am in the map. João Pessoa is the most eastern city of Brazil. It has a spot that is the closest point of South America to Africa.
Bonzo, next time you go to Rio tell me and I will arrange you a visit to Audiopax.
You can make an audition at the show room.
You can make an audition at the show room.
[QUOTE = "joaovieira, post: 554288, membro: 3787"] Bem-vindo Cesar!
César é um grande amigo, grande músico da Orquestra Sinfônica de São Paulo. Ele toca violino. [/ QUOTE]
Thanks , my friend.
César é um grande amigo, grande músico da Orquestra Sinfônica de São Paulo. Ele toca violino. [/ QUOTE]
Thanks , my friend.
Single-ended amps are Quicksilver prototypes - never “commercial”, therefore likely to use output transformers wound at Quicksilver (once deemed “production/commercial ready”, Sanders contracts a transformer shop to wind a “commercial quantity”) Output tube is the long-defunct 8417 (I have lots of spares). It has the usual 5AR4 rectifier tube - only one, therefore power supply is half-wave rectified.
This amp is self-biasing.
Loudspeakers are DIY:
Bass enclosures - a copy of the Klipsch Cornwall - vented boxes. Made of prefinished plywood.
The Cornwall copies have a 15-inch, 98dB/1W/2.83V woofer - the Lambda Acoustics TD15M (2004). In 2018, Acoustic Elegance manufactures these.
JBL rectangular tweeter horns (JBL 2370A and TAD TD-2001 1" compression driver) are mounted in the box where the mid and tweeter horns would normally be in stock Cornwalls. The TD-2001 is discontinued. I happened to meet Andrew Jones at RMAF2018 - who was introduced as the designer of that driver. I asked, “why discontinued?” He replied that they could no longer find a manufacturer that could maintain close-enough tolerances.
(I know - I’m a name-dropper)
On top sits circular tractrix "350Hz" “salad bowls”. This fronts the midrange driver (Community M-200 2" compression type) These have a ”low compression ratio”, so I’m told. These midhorns are well-loved demos from Brooks of the long-defunct Sierra-Brooks "marriage".
From driver specs Bob Crites built a three-way, first-order crossover (700Hz, 4kHz) using a stock Klipsch autoformer to pad the 108 and 110dB Community’s and TAD’s.
The TAD’s came out of hundreds in outdoor service at DisneyWorld - with only intact motors. Replacement diaphragms cost $450 in 2007. This, and DIY cabinets held the price down to $3700 for the pair.
This amp is self-biasing.
Loudspeakers are DIY:
Bass enclosures - a copy of the Klipsch Cornwall - vented boxes. Made of prefinished plywood.
The Cornwall copies have a 15-inch, 98dB/1W/2.83V woofer - the Lambda Acoustics TD15M (2004). In 2018, Acoustic Elegance manufactures these.
JBL rectangular tweeter horns (JBL 2370A and TAD TD-2001 1" compression driver) are mounted in the box where the mid and tweeter horns would normally be in stock Cornwalls. The TD-2001 is discontinued. I happened to meet Andrew Jones at RMAF2018 - who was introduced as the designer of that driver. I asked, “why discontinued?” He replied that they could no longer find a manufacturer that could maintain close-enough tolerances.
(I know - I’m a name-dropper)
On top sits circular tractrix "350Hz" “salad bowls”. This fronts the midrange driver (Community M-200 2" compression type) These have a ”low compression ratio”, so I’m told. These midhorns are well-loved demos from Brooks of the long-defunct Sierra-Brooks "marriage".
From driver specs Bob Crites built a three-way, first-order crossover (700Hz, 4kHz) using a stock Klipsch autoformer to pad the 108 and 110dB Community’s and TAD’s.
The TAD’s came out of hundreds in outdoor service at DisneyWorld - with only intact motors. Replacement diaphragms cost $450 in 2007. This, and DIY cabinets held the price down to $3700 for the pair.
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The gold unit looks like Fostex (I have a pair of Fostex super-tweeters).
The down-facing charcol-gray - cropped at left - TAD
bonzo, do take joao on his offer. I have a feeling you're not only going to love the Audiopax amps, but the speakers as well.
cheers,
Alex
The Aires-Cerat Legend Series Achilles amps and The Aires-Cerat Symphonia.
So many nice systems here... I’ve been sold (rather charmed) to SET amps since the first time I heard one in a store on my speakers at the time, and never looked back...!
Here’s my current rig:
Mastersound Evolution 845 parallel 845, 55w/ch
Fed by the Space Tech Lab QA114 tube Preamp
Speakers are the Coincident Pure Reference Extreme mk2 Speakers, passive, essentially flat 8ohm impedance down to 20hz and 94db sensitivity, so they actually sound great with my secondary 8watt set amp as well. I was looking for a full range speaker that could be driven by SETs, and Coincident are dedicated to that, so I gave them a try, and like them very much.
Phono is Coincident Statement and TT is Kronos Sparta made in Montreal. Cables are Audio sensibility Signatures. Dac is resonessance labs Mirus, the only non analog bit in the rig.
The rig, including speakers sit on Modulum Audio Platforms, which are awesome for increasing resolution and were a very nice surprise when used under the speakers as well. Interestingly enough, while the amp is Itialian made, the entire rest of the system was designed and built in Canada. Room was also acoustically modeled and treated with RPG panels.
I tried bi amping the speakers, but in the end I prefer the cohesive sound of using only the Evo845.
Cheers
Attachments
Nicd system. Is that a sock I see in the photo bottom right? You are close field like me!
Totally agree, I heard the Kondo Ongaku on Zingali HM110s way back at a dealer, it ruined my life....
Some years playing with SS amps, but back now, to where I am super happy. I actually think my current system beats the sound of that dealer system I heard back them. Certainly less coloured and more dynamic IMO.
Yes! I’m near field as you’d call it, about 7.5 ft from ear to tweeter. I found the acoustic was better with the system on the long wall, likely due to better symmetry with the window. Room is small at 11x14, but its my living room so I can spend lots of time listening to music. It also essentially solves side reflections, and ceiling/floor ones are dealt with. The room does not suffer from major acoustic issues either, and bass modes are easier to absorb, so This works for me. When speaker positioning is perfectly dialed in, the walls effectively disapear...
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