ARC Overload!

MylesBAstor · Nov 16, 2013

Deleted

DaveyF · Nov 16, 2013

Very nice.

Bruce B · Nov 16, 2013

Looks like the only thing missing are ARC speakers!

XV-1 · Nov 16, 2013

Bruce B said:
Looks like the only thing missing are ARC speakers!

They are. Do you really think ARC had a choice on what speakers to use?

DonH50 · Nov 16, 2013

Much better than the scene of destruction I envisioned from the word "overload"...

jap · Nov 16, 2013

Bruce B said:
Looks like the only thing missing are ARC speakers!

SF and ARC are both part of the Fine Sounds SpA.

What's missing is a REF 75.

microstrip · Nov 16, 2013

The Aida's sound great with the REF750's - they love power. Although I managed to operate them with the REF150 in a middle size room, I was always feeling they would be happier with more powerful amplifiers. If it was not for the heat and number of tubes I would not hesitate - IMHO compared to other super amplifiers the REF750 is a bargain.

jap · Nov 16, 2013

microstrip said:
The Aida's sound great with the REF750's - they love power. Although I managed to operate them with the REF150 in a middle size room, I was always feeling they would be happier with more powerful amplifiers. If it was not for the heat and number of tubes I would not hesitate - IMHO compared to other super amplifiers the REF750 is a bargain.

$55K a "bargain," LOL.

You should have tried a pair of Sanders Magtech Monos, 2K watts into your Aida's 4 ohm load for just $11K before you gave up on them.

MadFloyd · Dec 22, 2013

Wow, that carpet...

mep · Dec 22, 2013

MadFloyd said:
Wow, that carpet...

Yeah, it's a little too busy for me. The good news is that if you got drunk and puked on it, it might not show up.

Peter Breuninger · Dec 22, 2013

I think this is Milan.

VFA · May 30, 2015

Miles I have an old VT 200 amplifier. I called audio research to see if I could switch out the tubes to KT 150s. They say no. Do you knowif this is really possible or not

VFA · May 31, 2015

Anyone know if the VT 200 could accomidate the new KT 150 tubes in place of the 120's

DonH50 · May 31, 2015

Why wouldn't you believe ARC? Without rebiasing you won't get significant (if any) extra power. Heater current is higher and you would need to increase plate current; I didn't look closely enough at the datasheets to see if the same output transformer would work assuming it can handle the extra plate current. No idea how much margin is in the ARC's design so I would tend to follow their advice.

VFA · Jun 1, 2015

I would have the tubes re biased. Arc is selling new amplifiers with the KT 150. It behooves them to sell a new amplifier rather than have someone tube roll. Plus they may simply be saying that they have not tested the unit and don't plan to test the unit with these tubes. I still don't get why you can not use them. Some of your points may be the answer I just don't know.

Bobvin · Jun 1, 2015

One thing for sure, the KT150 is much larger than the KT120. Just looking at the innards of a VT200 over at arcdb.ws I would think you'd have a hell of a time fitting KT150s into that space. Those KT150 footballs are pretty damn big.

DonH50 · Jun 1, 2015

I thought the VT200 shipped with 6550's?

VFA · Jun 4, 2015

No I've changed tubes three times and last two times KT 120. Placed by local ARC technician

ARC Overload!

Well-Known Member

Well-Known Member

WBF Founding Member, Pro Audio Production Member

Well-Known Member

Member Sponsor & WBF Technical Expert

Banned

VIP/Donor

Banned

Member Sponsor

Member Sponsor & WBF Founding Member

[Industry Expert] Member Sponsor

New Member

New Member

Member Sponsor & WBF Technical Expert

New Member

VIP/Donor

Member Sponsor & WBF Technical Expert

New Member

Similar threads