丹麦制造 COPLAND/柯普兰 CTA-504 电子管HIFI后级-COPLAND/柯普兰 CTA-504

原装 COPLAND/柯普兰 CTA-504 电子管HIFI后级

资料来自:http://audio-database.com/COPLAND/amp/cta504-e.html

柯普兰"新杰作"CTA 504后级功放

将会在白云宾馆举行(7月13-15日)的2007广州高级音响展上，将有600多个进口音响/影音品牌,展示他们最新推出的高级音响/影音器材。

成立超过十年丹麦柯普兰,一直以研制真空管与晶体管技术而生产的音响器材`成名. 每次所生产的音响器材都能令Hi Fi界赞叹不已. 当中有1993年的CSA 14, 1995年初的CSA 303,其后的CTA 301 MK II前级放大器和CTA 505功率放大器皆获得全世界音响刊物的高度评分. 这亦使柯普兰成为欧洲最强大的音响公司之一.

最近,柯普兰再一次研制出新的杰作, CTA 504-一部纯誊后级的功率放大器. 特制的输出变压器,能够令频宽由5Hz到100kHz都能得到超低失真和高度的稳定性.

CTA 504的机身由铝合金制造,能阻文件电磁波的干扰.

CTA504
技术指标E83CC*5只电子管，6550*4只电子管
真空管:E83CC (5个) 6550(4个)
额定功率:每声道50W (在8ohms / 4ohms)
耗电量:250W
正常输入电压:230V
尺寸:430mm(W) x 175mm (H) x 375mm (D)
重量:25公斤

The

COPLAND CTA504
	380,000 yen(around the 1994 time)

Description

　
Tube stereo power amplifier of XENA AUDIO.

The current supply circuit is classified into seven lines, was protected by the respectively quality film capacitor, and has controlled the mutual intervention also in the super-high region.
The condenser which fully took the special order toroidal transformer and proof-pressure margin of the tanker cage is adopted as a power-source part.

Although the output pipe 6550A is driven, the phase inversion circuit of the push pull composition using two for a Twin Triode is adopted.

The 4mm gilding output terminal which can respond also to a banana plug is adopted, and an output for exclusive use is obtained to a speaker (4ohm and 8ohm), respectively.
Moreover, the RCA pin jack of gilding is adopted as an input terminal.

The output transformer has adopted EI core by the super silicon steel plate by which direction rolling was carried out.
Especially, the joint density between the primary secondary winding wire is high, and is maintaining the balance of the characteristic and efficiency.

It is possible to change to the pentode connection near [ it is infinite in the first class and ] it and triode connection with the knob in the front panel of hair line finishing.

The shield type very-thick cord of a BELDEN is adopted as a power cord.

Rating of a mode

Form	Tube power amplifier
Effective output	At the time of pentode connection: 50W+50W At the time of triode connection: 26W+26W
THD	Below 0.08% (1kHz/1W) Below 1% (1kHz/50W)
Frequency response	5Hz - -65kHz three dB
Output bandwidth	8Hz - -45kHz three dB
Signal to noise ratio	100dB (IHF / input short-circuit)
Input sensitivity	1.5V
Input impedance	250kohm
Output load impedance	4ohm or Eight ohms (minus community, plus connection substitute)
Negative feedback	16dB
The phase between input and output	Right phase
Valves employed	Voltage magnification and phase inversion: E83ccx5 本 Electric-power magnification: 6550WAx2 set
Power consumption	185W (Electrical Appliance and Material Control Law)
Dimensions	Width 430x height 175x depth 375
Weight	25kg

广州港扬音响：回收二手音响,高档二手音响回收回购,收购进口家庭音响,高价收购二手音响音箱,进口旧音响,进口旧音箱。

丹麦制造 COPLAND/柯普兰 CTA-504 电子管HIFI后级

Tags：

友情链接