- 第 28 页 -
本帖最后由 himhui 于 15-6-18 15:46 编辑
Siemens ELA 75-15 Universal Equalizer, Discrete Pushbutton Mastering EQ (Helios Pultec)
Unknown to most the 75-15 was built to the highest standard possible with gold plated switches, all gold plated PCB traces/pads(!), fully modular, fully discrete, transformer balanced and 1% metal film resistors throughout. I've never seen any other piece of vintage audio equipment manufactured with gold plated PCB traces/pads. This was Siemens "money is no object" response to the excellent Klein + Hummel UE100 and UE1000 mastering equalizers. When I discussed the 75-15 with John Peluso, of Peluso Microphones he said "The EQ is Fantastic one of the best sounding units I have ever heard in my 30 + years in Pro Audio." Less than 20 of the 75-15 Universal Equalizers were manufactured and one is featured at the Museum of the Science and Technology in Milan.
According to John Peluso most of the early Siemens ELA 75 series modules were designed by Dick Swettenham of Helios - and operate off the same -24VDC (positive ground) as the early Helios modules/consoles. From the manual:
"The difference in the levels of two different filter units does not exceed +/-1 dB and the frequency accuracy is in the order of 1%. The filter units can therefore be used in stereophonic chains since they make it possible to apply the same correction in both stereo channels by identical settings of the controls of the two filters used. In view of the characteristics mentioned, the filter will serve well for measurements in which tolerances must be kept as small as possible."
Siemens ELA 75-15 Universal Equalizer, Discrete Pushbutton Mastering EQ (Helios Pultec)
Unknown to most the 75-15 was built to the highest standard possible with gold plated switches, all gold plated PCB traces/pads(!), fully modular, fully discrete, transformer balanced and 1% metal film resistors throughout. I've never seen any other piece of vintage audio equipment manufactured with gold plated PCB traces/pads. This was Siemens "money is no object" response to the excellent Klein + Hummel UE100 and UE1000 mastering equalizers. When I discussed the 75-15 with John Peluso, of Peluso Microphones he said "The EQ is Fantastic one of the best sounding units I have ever heard in my 30 + years in Pro Audio." Less than 20 of the 75-15 Universal Equalizers were manufactured and one is featured at the Museum of the Science and Technology in Milan.
According to John Peluso most of the early Siemens ELA 75 series modules were designed by Dick Swettenham of Helios - and operate off the same -24VDC (positive ground) as the early Helios modules/consoles. From the manual:
"The difference in the levels of two different filter units does not exceed +/-1 dB and the frequency accuracy is in the order of 1%. The filter units can therefore be used in stereophonic chains since they make it possible to apply the same correction in both stereo channels by identical settings of the controls of the two filters used. In view of the characteristics mentioned, the filter will serve well for measurements in which tolerances must be kept as small as possible."
本帖最后由 himhui 于 15-6-18 15:42 编辑
真的鑲金啊!!
西門子是軍工級別..., 名字竟跟 HELIOS 和 PULTEC 扯上了。
abyss 发表于 15-6-18 14:24
西门子，大公司啊！下一个洗衣机就买他们了
真的鑲金啊!!
西門子是軍工級別..., 名字竟跟 HELIOS 和 PULTEC 扯上了。
本帖最后由 himhui 于 15-6-19 09:55 编辑
更正..
原來這插件只會買給100 個客戶........試用版要看情況了。PRE-SALE 也開始了
http://www.acustica-audio.com/in ... id=189#key-features
himhui 发表于 15-6-19 01:09
試用版本很快会来！
更正..
原來這插件只會買給100 個客戶........試用版要看情況了。PRE-SALE 也開始了
http://www.acustica-audio.com/in ... id=189#key-features