300B / 205D Push-Pull Monaural Power Amplifier

Soft and powerful sound quality.
Excellent panoramic feeling by monaural construction.
Penetrable sound quality by transformer drive.
You can enjoy the sound quality of both 300B and 205D.

Constitution

Input stage : ECC99 (manufactured by JJ) 1/2
Drive stage : ECC99 (manufactured by JJ) 1/2
Interstage transformer : RC-20 Rcore
Output stage : 300B (made in China) X 2 or FullMusic 205D/n X 2
Output transformer : RX-40-5 40W Rcore
Rectification : 274B (made in China)

Characteristic

Both 300B and FullMusic 205D/n can be used without adjustment.
FullMusic 205D/n has a mesh plate. You can see the beautiful and radiant filament view.
Penetrable sound quality by transformer drive.
Long-term stable by self-bias output stage.
Vacuum tube rectification by 274B.
High output power
20W with 300B class A2 push-pull operation.
12W with FullMusic 205D/n class AB2 push-pull operation.
Wide range
10Hz to 50KHz (-3dB) at 300B.
Low distortion
Up to 10W 0.1% range (1KHz) at 300B.
Full hand wired.

Specifications

Input terminal	RCA input (unbalanced) x 1
Output terminal	Speaker output : 4 ohm to 8 ohm, standard 6 ohm
Maximum output power 6 ohm load	20W with 300B class A2 push-pull operation 12W with FullMusic 205D/n classAB2 push-pull operation
Frequency Response	10Hz to 50KHz (-3dB)
Gain	26dB
Noise	0.6 mV or less (no correction), 0.1 mV or less (JIS A correction)
Dimensions (1 unit)	Width 17cm, height 22cm, depth 39cm
AC Power Requirements (1 unit)	110-120Volts, 50-60Hz or 220-240Volts, 50-60Hz.(Choose at the order.) 100W

Price for 1 set ( 2 units )
US$ 2,300 with 300B
US$ 2,800 with FullMusic 205D/n

This Amplifie is Make-to-order product.
It takes about 1.5 months from order to shipment.

Inquiries and orders : softone@nifty.ne.jp

205D used for this amplifier
We strongly recommend FullMusic 205D/n used for this amplifier.
We do not conduct the operation test with other 205D, we do not guarantee the operation with other 205D.
The output tube socket of this amplifier is UX 4 pin same as 300 B. It is not small UV of WE205D.
Only 205D with UX 4 pin socket foot can be used. WE205D can not be used.

FullMusic 205D/n
It is a 205D compatible tube with UX 4 pin socket foot and mesh plate.
Initially FullMusic 206D/n has a 4.5V 1.2A power saving filament.
but in the latest version it has 4.5V 1.6A filament same as the original WE205D.
It became specification more like the original.
The latest version is used with this amplifier.