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Kondo Overture PM2i

Kondo Overture PM2i

€29,900.00Prijs

De Overture is de instapper in de wereld van Kondo. Dit is een van de meest verkochte versterkers van Kondo en hij wordt ook veel gebruikt door fabrikanten van hoogwaardige luidsprekers om hun luidsprekers te testen/tunen. De el34 buis staat centraal en is geschakeld in push-pull en is ook in staat om de meeste luidsprekers met gemak aan te sturen.

  • Extra omschrijving

    Improvement

     

    New design guideline "Cleaner with more Triode Splendidness" was refined through extracting the knowledge we learned from Kagura researches and applications.

     

    • New output transformer was designed for higher sound quality. By introducing a 3rd winding exclusively for NFB and re-calculated feedback amount, a well balance of dynamic and low distortion is realized.
    • Power and sound quality co-exist created by circuit re-design and re-tuning most CR values.
    • Power supply section is heavily improved and re-layout for outstanding channel separation.
    • Improved version of KONDO original silver foil signal capacitors for highest reliability.

     

    Design

     

    To develop an integrated amplifier which has best sound quality, simple and easy to use. True music lovers can enjoy various kind of music from delicate solo to big scale orchestra.

     

    • Power tubes are famous pentode EL34, which are first application in Audio Note product. In order to secure a minimum of 30W even matching with low efficiency speakers. Output impedance are 4Ω and 8Ω selectable.
    • Reference to many classic push pull circuits with addition to our original new ideas, the performance of EL34 amplifier is elevated to a completely new level, combining both dynamic and delicate tonal balance.
    • Fulfilling the requirements of modern specification and keep Audio Note traditional natural music performance.

     

    New design Push-Pull circuit

     

    The first stage and driver stage are both direct coupling circuits. Pure silver foil capacitors are used as coupling in the output stage. Moreover, we aimed to make the entire circuit into low impedance so that transparent and direct sound is achieved. There is also a newly design circuitry CCB (constant current biasing) adopted in the output stage. It prevents music signal from flowing into the bias adjustment VR and maintain music signal's purity and integrity. Output transformer is UL connection, only 3dB NFB employed to get the best balance of low distortion and good dynamic. Furthermore, Internal wirings are skillfully arranged so that shortest paths and best performance are obtained.

     

    Super High Quality Parts

     

    All parts were carefully chosen after massive hours of listening tests. High grade audio volume, silver foil capacitors, silver lead resistors, SSW silk silver wires, Ls-41 shield cable, Audio Note custom made output transformers and power transformer. All CR part are carefully selected and arranged.

     

    Big Power supply

     

    The high reserve power supply circuit is constructed with choke coils and large capacitors group. After the ripple filter stage, the decoupling capacitors are further arranged to serve left and right channels independently. In addition, we prepared 500μF/ch in the input stages of left and right channel; achieving high headroom and wide bandwidth sound possible.

     

    Specifications

     

     
    Product EL34 Push-Pull stereo integrated amplifier
     
    Model PM-2 i
     
    Rated Power 32W + 32W @1kHz, 1% THD
     
    Frequency Response 6Hz ~ 140kHz (+0dB -3dB @ 1W)
     
    Input / Impedance 4pairs (RCA, unbalanced) / 50kΩ
     
    Output 4Ω, 8Ω
     
    Noise lower than 0.5mV
     
    Vacuum tube EL34 x4, 12BH7 x2, 6072 x2
     
    Power consumption 180W
     
    Dimension 438mm(W) 201mm(H) 409mm(D)
    (excluding protrusions)
     
    Weight 26kg
    *Due to the characteristic of the vacuum tubes used, it takes around 15 minutes to reach nominal sound quality and performance level.