KT150 in ARC Ref 75/150/250 amps ? .....

HOLY SHIT!

I just swapped some 150s into my REF75. Thought I had a bad tube, but it turns out one of the driver tubes was crackling. I swapped in some 6H30s from another amp, and gave the system about 10 minutes to warm up. I played one side of a record to warm up my cartridge, then put on side 1 of Hugh Masakela's HOPE album (45 rpm).

WOW, just F'n WOW. Those KT150s rock'd my world. Some might argue an amp like the REF75 isn't enough for the Alexias, but at 105+ db peaks the needles seldom popped past halfway up the dial, and the bass was just amazing. The contractors working outside greatly enjoyed the tunes!

Did I mention how much fun I'm having now my system is up and running? :yahoo1:I think I'm up to 35 hours, and about 1 hour on the KT150s.
 
Having previously heard the KT-150s in the Raven amps, I was amazed at how good they sounded. I can't wait to try them in my Ref 75.
 
Awesome news Bob! I am so happy for you. I'd love to hear KT-150's in the ARC Ref. amps.

Bobvin said:
HOLY SHIT!

I just swapped some 150s into my REF75. Thought I had a bad tube, but it turns out one of the driver tubes was crackling. I swapped in some 6H30s from another amp, and gave the system about 10 minutes to warm up. I played one side of a record to warm up my cartridge, then put on side 1 of Hugh Masakela's HOPE album (45 rpm).

WOW, just F'n WOW. Those KT150s rock'd my world. Some might argue an amp like the REF75 isn't enough for the Alexias, but at 105+ db peaks the needles seldom popped past halfway up the dial, and the bass was just amazing. The contractors working outside greatly enjoyed the tunes!

Did I mention how much fun I'm having now my system is up and running? :yahoo1:I think I'm up to 35 hours, and about 1 hour on the KT150s.
Click to expand...
 
Bobvin said:
HOLY SHIT!

I just swapped some 150s into my REF75. Thought I had a bad tube, but it turns out one of the driver tubes was crackling. I swapped in some 6H30s from another amp, and gave the system about 10 minutes to warm up. I played one side of a record to warm up my cartridge, then put on side 1 of Hugh Masakela's HOPE album (45 rpm).

WOW, just F'n WOW. Those KT150s rock'd my world. Some might argue an amp like the REF75 isn't enough for the Alexias, but at 105+ db peaks the needles seldom popped past halfway up the dial, and the bass was just amazing. The contractors working outside greatly enjoyed the tunes!

Did I mention how much fun I'm having now my system is up and running? :yahoo1:I think I'm up to 35 hours, and about 1 hour on the KT150s.
Click to expand...

Congrats Bob! Love those 150's. Pics please!


Sent from my iPhone using Tapatalk
 
Some Audio porn doesn't hurt, right ?
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The G sort of looks like a much more sexy version of the VS115 amp with KT-150s. How does it sound? How much is ARC charging for their KT-150s?
 
Hi guys;

I'm sorry if I'm asking the same questions again but still:

  • Can I safely swap KT120 with KT150 and if this is finally the case what is the needed Bias (65mA)
  • With the KT150 installed (if possible) is it possible to close the cover of the amp due to the size of the tube?

Many thanks for your help!

Cheers;
G
 
Fyi guys, I have the Ayon Orthos XS KT 150 for sale in the buy sale section at less than 50%. This is one up from the one listed on his website - 300w triode, 400 pentode. Read reviews and compares in that for sale post.
 
Keep the same bias as per the marks on the meter. Yes the cover will fit but it is very close. I have had no problem using my Ref 75 with KT-150s and the cover.
 
Does anyone know the thread size on the standoffs used in the Ref75? Height of the board in the Ref75SE? I also need to know the hex size and type--e.g. 4.5mm or 6mm or xx inches diameter and female/female or female/male.
 
Hi guys,
just wonder who would you recommend to purchase replacement set of tubes (KT150 & 6H30) for my Ref 150
apart from Audio Research corp and Upscale Audio, apparently Kevin sells to US customers only.
Best Regards,
Andrew
 
Welcome to the forum Andrew. Thank you for joining.

Are you in Australia? Maybe some of our Aussie friends can make a recommendation. I think Grant Fidelity sells KT150, not sure who else will ship 6H30 over to you.
 
Tube Depot ships international. I purchased KT-150s (domestic) from them. https://www.tubedepot.com/

https://www.tubedepot.com/products/tung-sol-kt150-power-vacuum-tube

"All Orders (Domestic and International) will ship to you via FedEx or USPS service. At checkout, you will be offered a multitude of shipping options. The cost of these shipping services will depend on the weight and destination of your order. You can select the best option based on your time requirements and cost preference."


The Tube Store also ships international: http://www.thetubestore.com/
http://www.thetubestore.com/Tubes/KT88-Tube-Types/Tung-Sol-KT150

"International Shipping - Outside of North America
International: Once we receive your order, we will email you with your shipping options and costs. At that time you can choose what shipping method you prefer or you can cancel the order if you do not wish to proceed. We do not process your credit card for your order until it is ready to ship. We will attempt to email you twice; if no response is received we will attempt to ship using the best method for order size and value. If you wish to cancel your order you must email to request cancellation.
Approximate International Air Parcel Post shipping cost for an order of four power tubes and four preamp tubes: $22 USD. We will e-mail confirmation of cost and options before shipping the order. "

Google and Yahoo search are your friends. There are probably other suppliers including closer ones if you do a little leg work.
 
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