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M3 Headphone Amp with wood/aluminum case with Sigma 11 PSU / Epsilon 12 (DIY AMB)

mfspdesigns - M^3 Headphone Amp - Headphone stands and amplifiers

High quality built AMB M^3 headphone amplifier in wood aluminum handcrafted enclosure with Sigma 11 Power Supply Unit and Epsilon 12 delay muting and protection circuit.
dsc03023-p3prb.jpg


For my diy version, I have created a compact and sturdy enclosure made of wood (Mahogany, also available in glossy walnut) and aluminum which houses the M³ and its Power Supply (Sigma 11 from AMB) and I also included a DC protection and delay muting circuit (Epsilon12).
dsc03013-p3.jpg

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Features :
Stereo Class A Headphone Amplifier with active ground (3ch)
Sigma 11 – 24V power supply unit
Can be configured easily for 230 V or 115V
Toroidal transformer 25VA
Epsilon 12 – DC protection and delay muting circuit
Enclosure: Mahogany wood and aluminum with massive 3mm brushed aluminium front panel.
Massive aluminum knobs for Volume and Gain.
Stainless steel front power switch
Blue led for power indicator
ALPS RK27 “blue velvet” high quality potentiometers for Volume and Gain control
Variable gain 4 to 19
Output bias set to 85mA
AD8610 opamps in the 3 channels (you can change for other opamps)
Neutrik 6,35mm jack
Neutrik gold plated RCA

dimensions (mm):
350x260x65 (incl. Knobs, RCA, feet)
350x235x55 (excl. Knobs, RCA, feet)

Weight: 2.6 kg (3,1kg packed)

Condition: new: it's a diy project

Price: 539€ (approx.741USD) - Shipping NOT INCLUDED.
Worldwide shipping is possible, please contact me for shipping price.
 
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Headphone Stands (wood with aluminum)

High quality custom handcrafted headphone stands in wood with aluminum inserts.
Available in Mahogany (satin) or Walnut (glossy).


[IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/07/dsc02699-p3.jpg?w=225&h=300[/IMGDEAD][IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/07/dsc02715-p3e.jpg?w=225&h=300[/IMGDEAD]
[IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/07/dsc02736-p3.jpg?w=225&h=300[/IMGDEAD][IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/07/dsc02738-p3e.jpg?w=225&h=300[/IMGDEAD]


Price: 79EUROS
Dimensions :
Base: 250x250x25mm wood with brushed aluminum insert
Height: 280mm, width: 120mm





[IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/07/dsc02680-p3.jpg?w=225&h=300[/IMGDEAD][IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/07/dsc02659-p3e.jpg?w=225&h=300[/IMGDEAD]
[IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/07/dsc02653-p3.jpg?w=225&h=300[/IMGDEAD][IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/07/dsc02684-p3d.jpg?w=225&h=300[/IMGDEAD]


Price: 55EUROS
Dimensions :
Base: 250x250x25mm wood with brushed aluminum insert
Height: 280mm



Shipping NOT INCLUDED.
Worldwide shipping is possible, please contact me for shipping price.
 
Cavalli Kan Kumisa III Headphone Amplifier (CK2III) in handcrafted enclosure

Cavalli Kan Kumisa III Headphone Amplifier (CK2III) enclosed in a high quality, compact and sturdy custom made enclosure made of wood (available in Mahogany or Walnut) and aluminum which houses the CK²III pcb and its power supply.


This amplifier provides a high voltage swing (20Vp-p) which is particularly suited to drive high impedance headphones.


Optionally available with DC offset protection and delay muting circuit (Epsilon12) to prevent any turn-on and turn-off noise and protect your headphones. (+40€ (55USD))


Optionally available with an illuminated volume knob and headphone jack aluminum (3.6mm) front plate.


Some pictures:
[IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/11/dsc02949-p3pr.jpg[/IMGDEAD]
[IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/11/dsc02953-p3pr.jpg[/IMGDEAD]
[IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/11/dsc02974-p3pr.jpg[/IMGDEAD]
[IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/11/dsc02955-p3.jpg[/IMGDEAD]
[IMGDEAD]https://mfspdesigns.files.wordpress.com/2013/11/dsc02926-p3s.jpg[/IMGDEAD]




Features :
Stereo Headphone Amplifier (all discrete)


Built in power supply.
Can be configured for 230 V or 115V
Toroidal transformer 30VAC, 25VA, 830mA


Option (+40€ (55USD)): Epsilon 12 – DC offset protection and delay muting circuit


Enclosure: wood and aluminum with 3.6mm brushed aluminium front panel. (available in mahogany or walnut).
Massive (dia.28mm) aluminum knob for Volume.
Optionally available with an illuminated volume knob and headphone jack.
Front power switch rated 3A, 250VAC.
Red led for power indicator.
Rubber feet.


ALPS RK27 “blue velvet” high quality potentiometer for Volume control
Std. gain: 9
Output bias set to 30mA
Neutrik 6,35mm jack
2 x Neutrik gold plated RCA for input


Output impedance: <0.5 Ohm
Max. Output voltage : 20Vp-p (7,07Vrms)
Power output: 1.4Wrms into 33 Ohms ; 0.15Wrms into 330 Ohms


dimensions (mm):
235x305x65 (incl. Knobs, RCA, feet)
235x280x55 (excl. Knobs, RCA, feet)


Weight: 2.1 kg (2.7kg packed)

Condition: new: it's a diy project

Price: 299€ (aprox. 411USD).
Shipping NOT INCLUDED.

Worldwide shipping is possible, please contact me for shipping price.


Thanks for looking!
 
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