BHK 簽名版混種前級
評測報告:
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威達影音頻道 (Radar Audio YouTube Channel) |
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影音极品 (Super AV) Vol.282 |
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影音生活 (Foyer) Vol.69 |
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發燒音響 (Audiophile) Nov 2016 |
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音响技術 (Audiotechnique) No.421 |
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影音生活 (Foyer) Vol.68 |
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發燒音響 (Audiophile) Aug 2016 |
BHK Signature Preamplifier BHK 簽名版同樣出自擁有超越半世紀製作發燒擴音機經驗的殿堂級設計達人 Bascom H. King 先生手筆,造型跟 DirectStream 10倍DSD升頻解碼器如出一徹的面板,設有 OLED 顯示屏幕,機背提供 單端 RCA 及平衡XLR輸入各5組,全數可按照實際需要自行指派HT直通車功能,輸出方面亦同時提供 單端 RCA 及 平衡 XLR 可供選擇。
全平衡混種 Hybrid 放大線路
擁有零失真特性的全平衡輸入級,主要由兩枚 ECC82 / 12AU7 雙三極真空管所組成,相關的屏極、陰極燈絲供電組,各自配備 MOSFET 分立式穩壓,大大加強線路的穩定性。作為調校增益及平衡修正線路,是一套經由面板背後旋扭式編碼器委派指令,以 0.5dB 方式進行的級進分立衰減裝置。至於差動耦合全平衡輸出級亦同樣以 MOSFET 作為放大零件,高偏流低內阻純A類設計,驅使保真度得以維持在最高水平。值得留意的是整個音頻環節堅持採用體積較為龐大的傳統焊接零件,落實在音頻環節的PRP音響專用金屬皮無電感電阻,組裝前更經過人手及儀器進行配對,造就左右聲道之間的誤差保持在更低水平。
MOSFET 分立式穩壓系統
供電環節配備能量充裕,擁有超低內阻和大電流輸出特質的秘製環型變壓器,搭載5套 Bascom H. King 先生自行研發 MOSFET 分立式穩壓系統,為各環節提供源源不絕的能量。面板前方設有專為真空管而設的備用開關,以便截斷管子的燈絲和高壓供電,餘下的耳擴及 MOSFET 分立式穩壓系統和輸出級仍處於工作狀態,此舉能延長管子的壽命。而 BHK Signature Preamplifier 亦是巿場上極少數容許用家自行取決真空管的燈絲工作電壓,以便切合不同編號管子需要的參考前級產品。
增添牛交連零迴授 MOSFET 分立式耳擴線路
除了結集真空管和 MOSFET 精髓的高平電放大線路之外,BHK Signature Preamplifier 參考前級還破天荒加入一套完全獨立運作,以變壓器作為耦合零件的零迴授 MOSFET 分立式耳擴線路,近乎零水平的輸出阻抗加上強大電流輸出,絕對是發燒耳機的靚聲好拍檔。
退款政策
EXCHANGE
Every product that you order from Radar Audio Company online shop is taking full care by us. You may return any items in its original condition for an exchange due to below reasons:
- The goods received are not the ones that you ordered;
- If it is discovered that the product is severely damaged or has operation problems after opening or when it remained unopened.
- Customer must contact our Customer Service Department within seven working days of receipt of the goods for replacement.
- The goods must be accompanied with our official invoice, original package, product barcode, accessories, manuals and warranty card without filled.
- All exchanged products will be inspected by our service center before replacement. Otherwise, we will not be able to identify and process the replacement procedure.
- The returned product must be intact, not involving human damage, not being repaired, free from scratches and water damage.
NOT APPLICABLE FOR EXCHANGE
- Invalid product code and serial number of the product and warranty card.
- Product not sold on Radar Audio online shop.
- Failure to follow instructions supplied with the product.
- Any damages or defects caused by, including but not limited to external pressure, impact damage, dropped, misuse, humidity, water damage, other consequences of easy access, or missing parts.
- Any damages or defects that occur in/on outer surface of the product that result from normal wear and tear under ordinary use.
- Any damages or defects caused by human errors or unexpected factors including but not limited to handling, extrusion, bumps, scratches, impacts, exposure to high temperature, improper input voltage, corrosion, water, fire, accidents etc.
- Any damages or defects caused by any accident, act of natural, physical damage or malfunction, abuse, misuse, natural or personal disaster, or any unauthorized disassembly, repair or alteration and modification.
REFUND
- In case of out of stock, refund will take 3-7 working days to process.
- Prices are subject to change without prior notice and all orders are subject to Company’s acceptance at its sole discretion and stock availability.
- If any dispute arises, Radar Audio Company determination shall be final.
- Where these terms and conditions are available in Chinese, the English version is the governing version and shall prevail whenever there is a discrepancy between the two versions.
QUESTIONS
- Email service@radaraudio.com
- Phone +852 2418 2668