Home Comapany Profile



Label
2xHD

333 ENTERTAINMENT

A&U PRODUCTIONS

ACOUSENCE RECORDS

ALBRECHT RIERMEIER

ALES MUSIC

ARTEGRA

AVID

BEAR FAMILY RECORDS

BLUE COAST RECORDS

BLUE MOON

BLUESTOPIA

BONGO BEAT

BUREAU B

CARMEN GOMES INC

CHASING THE DRAGON

CHILDREN'S GROUP

CLEARAUDIO

CNA MUSIC LIMITED

CYBELE RECORDS

DISKY

DREAM LIFE

EDEL

EDENWAYS RECORDS

ELEKIT

ETERNAL ARTS

FIDELIO AUDIO

FORTISSIMO

GOLD NOTE RECORDS

HIGH END SOCIETY

JAZZ WORKSHOP

JEEPSTER

JIENAT FLIFLET

K&K VERLAGSANSTALT

KHARMA AKASH RECORDS

KIMBER KABLE

KM RECORDS

KNIFE MUSIC

L.T. SERIES

LA-LA LAND

LONEHILL JAZZ

M&K RECORDS

MAGNA ACUSTICA

MARKET SQUARE

MARTIN VATTER PIANO

MAXANTER RECORDS

MAXJAZZ

MELT2000

MEMBRAN

MEYER RECORDS

MICKEY HART

MINOR MUSIC

MUZAK INC

NORTHWEST CLASSIC

PRISM LEISURE

QUARTET RECORDS

REAL GONE JAZZ

RHAPSODY ANALOG RECORDINGS

RUNT LLC

S&M

SKETTI SANDWICH

SPRINGHILL

STEEPLECHASE

STS DIGITAL

THE SPOT RECORDS

TOERA INC.

TOUCHE MUSIC

TRIODE

VELUT LUNA

VOMP

WATER MUSIC

WYSE RECORDS

YARLUNG RECORDS

 
Genres
AUDIOPHILE

CHINESE

CLASSICAL

COUNTRY AND BLUES

JAZZ

NEW AGE

POPULAR

SOUNDTRACK

TEST AND DEMO

VOCAL

WORLD

 
Format
BLU-RAY
CAS
CD
DVD
HQCD
LP-VINYL
MAXI-CD
MINIDISC
MQD
OTHERS
REEL TO REEL
SACD
VCD
XRCD
 
News Content:
TU-8300 300B SINGLE STEREO POWER AMPLIFIER:
Published On : 2009/11/4

EK JAPAN CO., LTD

15th Anniversary of Foundation

日本ELEKIT成立15週年

Limited Model / NOV 2009

* 參考資料 : 日本KIT SET定價為88,200日元、砌機收費26,250日元,需時30日,不包括運費

量成品,即日接受預定,2009年11月份推出。TU-875 / 879 / 882AS / 884CD / 881CD 等已登記行貨用家優先發貨。

TU-8300

300B SINGLE STEREO POWER AMPLIFIER“TU-LAB”

A single stereo power amplifier with 300B tubes, the most popular tube, which is designed so that tube amplifier fans can work over it on their own after assembly.

Find your favorite combination of tubes, output transformers (OPT), volumes, etc, and enjoy this experimental TU-LAB!


300B 單端真空管立體聲放大器

全球首部300B同時兼容KT88(6550)、KT66、 EL34(6CA7)、6L6GC等真空管,自動偏壓,無需開機蓋。

Experimental amplifier for audiophiles !!

Triode connection of pentode also available!

Triode-connected pentode and beam tube have equal qualification and attraction as 300B. In this TU-LAB, 8 pin sockets are equipped, which enables triode connection of such tubes as KT88(6550), KT66, EL34(6CA7), 6L6GC, etc, without any modifications to the amplifier.

 

Try different OPT and volumes!

A slide universal bracket, or in other words “magical bracket” , that enables various kinds of OPTs in various shapes to be installed, is developed for TU-LAB so that most of commercially-available OPTs for 300B single amplifier can be used.

Full of ingenuity for high quality sound, stability, safety, and energy-saving


[“Constant current circuit, self-bias + fixed bias” method]

Constant current circuit is adopted instead of cathode resistors of self-bias method so that a constant plate current flows no matter what tubes in our assumption are used. (rated currency value can be fine-adjusted.

[Power shut-down circuit for OPT upon over-current]

If over-current occurs in either of the OPTs even for one second, the B power supply is shut down and LED indicator at the troubled side shows that there took place a malfuction.

[FET ripple filer]

FET ripple filter, time-proven in the performance of the reduction of ham noise is adopted for the B power supply.

[All tubes heated by AC]

From ecological point of view, all tubes are heated by AC power so that the power loss in the rectifying circuit is improved and heating is moderated.

World-wide power transformer

Upon request for se under 200V environment or oversea countries, a multi power transformer that can be used under 4 different power voltage environments, such as 100V, 115V, 200V, and 230V (Select the setting location of the corresponding connector upon assembly.)

 

【Specifications】

Tubes: 300Bx2, 12AT7x2 (No tubes for replacement included)


Max. output: 8W+8W (by default, with 300B tubes and 8Ω of load applied)


Frequency response(-3dB): 15Hz~40kHz


Residual noise (IEC filtering): 0.5mV (0.1,V when KT88 installed)


Input sensitibity: 200mV  (DF:6.3  Speaker: 4~16Ω)


Output terminal : Gold-plated, binding post (bare wires up to Φ5mm can be inserted, and banana plugs can also be used.)


Input terminal : Gold-plated RCA jack, single stereo line (at the back)


Power input : 3P inlet (IEC320)


Power voltage : 220V ~ 240V 50/60Hz available. Change the soldering location of the connector for power transformer as shown in the photo below.


Power consumption: 80W by standard (70W~95W as ip is fine-adjustable.)


Dimension: W400xH213xD250 mm (Chassis with the punched metal cover, protrusion not included.)


Weight: 10.8kg (fully assembled, without a power cable)


ip adjustment range: Approx. 50~80mA (L,R independently adjusted) Ham balancer function equipped A microcomputer is adopted for TU-LAB, for the first time to our TU series amplifier (warming-up timer <delay in B power supply>, cathode voltage monitoring, automatic shut down of B power supply upon malfunction)

 

OPTs (Output Transformers):

[ RETURN ]

 


 

 

 

 

 

Facebook

Google Blogger



 

 

 
News

 

 
Customer Review

 》TU-8200
nn- suggestion- Lionel Wong at Aberdeen, Hongkong

 》TU-8200
nn- enquiries - Daniel

 》BCRSA 1012A
nn- 晶莹绨透- 来自网络

 》BCRSA 1012A
nn- SACD- 来自网络

 》BB 1968-2
nn- Good - BongoBeat

 

01
FAUST BALLET MUSIC。BIZET CARMEN SUITE
02
NAGRA 70TH ANNIVERSARY COLLECTION CD
03
RHAPSODIES
04
IN CONCERT AT THE OLYMPIA PARIS 1957CD NUMBER:
05
IN CONCERT AT THE OLYMPIA PARIS 1957 (180G X 2LP)
06
WITCHES’ BREW (巫婆)
07
Gorky Park: 40th Anniversary Remastered Limited Edition (2-CD SET)
08
THE VERY BEST OF TAS 2022
09
AUDIOPHILE ANALOG COLLECTION VOL.1
10
JAZZ AT THE PAWNSHOP (2 X 200G LP)
12
BESTSELLER CLASSIC NO.1 (180g LP)
13
DVORAK AND GLAZOUNOV: VIOLIN CONCERTOS (180G LP)
14
MENDELSSOHN & PROKOFIEFF VIOLIN CONCERTO (180g LP)
15
MENDELSSOHN / PROKOFIEFF / TCHAIKOVSKY VIOLIN CONCERTO
 

01
NAGRA 70TH ANNIVERSARY COLLECTION CD
02
VENICE & GAITE PARISIENNE
03
FAUST BALLET MUSIC。BIZET CARMEN SUITE
04
BESTSELLER CLASSIC NO.1 (XRCD2)
05
JAZZ AT THE PAWNSHOP (2 X 200G LP)
06
SIBELIUS SYMPHONY NO.5 & KARELIA SUITE
07
NAGRA 70TH ANNIVERSARY COLLECTION ALBUM (45RPM X 2LP)
08
BESTSELLER CLASSIC NO.1
09
AUDIOPHILE SPEAKER SET-UP (2CD-SET)
10
KHACHATURIAN MASQUERADE SUITE
11
AUDIOPHILE ANALOG COLLECTION VOL.1
12
SOME OTHER TIME: THE LOST SESSION FROM THE BLACK FOREST (200G 45RPM 2LP)
13
MISSION: IMPOSSIBLE – DEAD RECKONING PART ONE (2-CD SET)
14
THE INCREDIBLE SOUNDS - Audiophile Demo CD VOL.2 (如月示範天碟2)
15
THE BEST VOICES FOR AUDIOPHILE LOVERS