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Author Topic: All things Moth: Moth Audio M-304-TL Tube Amplifier, Moth s2A3, and more...  (Read 9272 times)

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Tari

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All things Moth: Moth Audio M-304-TL Tube Amplifier, Moth s2A3, and more...
« on: March 31, 2013, 04:13:21 AM »
Purrin's Cicada thread has me all nostalgic, so once securing permission from the owner who sent me these pictures, I can post these lovely shots publicly:




























This was Joel Marshall from Moth's personal pair. 


No idea how they sound, there was only one pair sold in the US and this is it.




Purrin Add 4/8/13:

The Moth Audio M-304-TL is a power amplifier in the valve amplifier category. It was manufactured from 1999 to unknown.
Moth Audio web site (May 19, 2010): 35 watt single-ended class A1 no feedback interstage transformer coupled monaural amplifier.Specifications:Topology: One triode for voltage gain, transformer coupled to the output power triode. Only thermionic devices and magnetic circuits are used. No coupling capacitors and no feedback. The output power triode never leaves class A, operation and is used at half its rated plate dissipation for longer life.
  • Tubes: Four 6D22S rectifier "Svetlana" (Russian)
  • One 5Y3 rectifier "Sovtek" (Russian)
  • One 5842Q voltage gain & driver "Sylvania" (USA)
  • One 304TL output "Imac" (USA)
  • Wiring: Hand wired point to point for all circuits. Cardas solder user throughout.
  • Capacitors: Polypropylene in soybean oil for power supply circuits.
  • Output Transformers: Custom manufactured for Moth Audio Corporation.
  • User selectable: 2,4,8, & 16 Ohms.
  • Connectors: Cardas rhodium plated RCA for unbalanced input, Neutrik gold plated XLR for balanced input. Silver-plated speaker connectors.
  • Chassis: Zinc plated 18-gauge, cold rolled steel with a heavy wrinkle black powder coating. Polished and black anodized 3/16" thick aluminum top and bottom plates. Brass plaques are custom etched and filled. Indicator pins are 24K gold plated.
  • Glass Bell Jars: .25" thick hand blown Pyrex with acid etched logo.
  • Power Output: 45 watts, 5% THD @ 1kHz.
  • Total Harmonic Distortion: Less than 1% 40 - 20 kHz @ 35watts.
  • Power Supply: Low-flux leakage design using toroidal power transformers as well as toroidal inductors.
  • Frequency Response: (-3dB Points) 10Hz - 40 kHz .
  • Input Sensitivity: 1.5V for 35 watts out.
  • Input Impedance: 100k ohms unbalanced. 600 ohms balanced.
  • Power Requirements: 105 - 125 VAC 60Hz (210 - 250 VAC 50Hz.) 400 Watts.
  • Dimensions: 20"H x 15.75" W x 23" L
  • Weight: 75 Lbs.
  • Warranty: All components carry a 3-year parts and labor warranty. Tubes carry the manufacturers' warranties.
« Last Edit: December 15, 2014, 09:35:45 PM by Tari »
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Marvey

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Re: Moth 304TL
« Reply #1 on: March 31, 2013, 04:21:31 AM »
1000 1200 Volts! I hear Craig will not service them..
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Maxvla

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Re: Moth 304TL
« Reply #2 on: March 31, 2013, 04:25:03 AM »
Holy crap. Have Craig build you a pair. :D
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Stapsy

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Re: Moth 304TL
« Reply #3 on: March 31, 2013, 04:25:16 AM »
Those look incredible!  The styling is like nothing I have ever seen. Is that one giant tube or a normal sized tube under a couple layers of glass?  I can't quite tell.
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Maxvla

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Re: Moth 304TL
« Reply #4 on: March 31, 2013, 04:26:04 AM »
Both.
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Marvey

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Re: Moth 304TL
« Reply #5 on: March 31, 2013, 04:26:28 AM »
Quote from: Maxvla on March 31, 2013, 04:25:03 AM
Holy crap. Have Craig build you a pair. :D


That was the amp that almost killed him. Anax is building a 304TL in the future.
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Tari

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Re: Moth 304TL
« Reply #6 on: March 31, 2013, 04:31:35 AM »
Craig refuses to deal with these anymore after a scary moment with them. 


They have a really cool system for ventilation.  There are actually two glass bell jars there, and there is a fan in the chassis that pumps air through one jar and out the other.


I don't know why, but these remind me of Kang and Kodos.
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MorbidToaster

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Re: Moth 304TL
« Reply #7 on: March 31, 2013, 04:57:37 AM »
These are probably the most stunning tube amps I've ever seen. Just...wow.
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Armaegis

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Re: Moth 304TL
« Reply #8 on: March 31, 2013, 06:30:57 AM »
I'm experiencing a slight tingly sensation (one guess where)... fear, excitement, and a little bit of reverence all rolled into one.
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Do you think there may be an acoustic leak from the jack hole? ~Tyll Hertsens

Not sure if I like stuffing one hole or both holes. Tending toward one hole since both holes seems kinda ghey ~Purrin

mkubota1

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Re: Moth 304TL
« Reply #9 on: March 31, 2013, 07:30:39 AM »
That's insane.

I love the no BS powerstrip in the back!
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