tone imports

CS-660P Power Amplifier

One of Mr.Hyodo's favorite KT66 based power amplifiers is the QUAD II, (The QUAD II has recently been re-launched due to the demand from audiophiles). Mr. Hyodo has now decided to design a new power amplifier using the same KT66 tube but incorporating high-end audio grade components, far superior to those used in the original QUAD design.

TWO CHOICES OF OUTPUT TUBES: KT-66 AND OPTIONAL 6CA7(EL34)

By switching two selectors inside of the cabinet, you can use either KT-66 or 6CA7(EL34), a LED indicator at the foot of each tube will change its color and show you which tube is in use. You also can use several other tubes of different sound characteristic. (Refer to the Tube List)

STEREO/MONO SELECTOR SWITCH
You can use CS-660P as a monaural power amplifier by changing the selector switch giving an 80W output power.(40W x 2 when used as a stereo power amp.)

A WIDE RANGE OF SPEAKER APPLICATION
Multi output impedance selector: 4/8/12/16 ohms.

FLAT AND WIDE FREQUENCY RESPONSE
A wide frequency response from 10Hz to 100KHz(-0dB) caters for digital audio formats such as SACD/HDCD.

OTHER FEATURES

  • Twin-triode tube 6CS7 for the first-stage amplification.

  • WBT type speaker terminals.

  • Large capacity choke-coil: 400mA

  • Dumper tube 6CJ3 (for Color TV use) is applied to delay a supply of high voltage (B-Voltage) to output tubes in order to protect output tubes from damage and to increase tube life.

  • All high-end audio grade electrical components (condensors, resistors)

  • Operation indicator lights up when the tubes are warmed up.

  • Wood Side-Panels.

Read the English translation

CS-660P Specifications
Tubes Compliment (4) KT-66, (EL34/6CA7 - Option)
  (4) 6CS7
  (1) 6CJ3
Output Power  

Stereo

40W x 2 (KT-66) at 1KHz.

Mono

80W X 1 (KT-66) at 1KHz.
Frequency Response 10Hz - 180KHz. (-3dB)
Input Sensitivity 1.5V at 40W
Input Impedance 100KO
Output Impedance 4/8/12/16 Ohms (Selectable)
Power Consumption 230W
Weight 18.0kg
Dimensions 415(W) X 480(H) X 320(D) mm
Attachment Detachable AC Power Cable x 1
Optional Tubes  
  KT77
KT88
KT100
6L6GC/5881
6550A
6CA7
350B
KT90
5881
   
AcousticPlan | Auditorium 23 | EMT | Leben Hi-Fi | LignoLab | Line Magnetic Audio | Sentec | Shindo Labs

Tone Imports Home | About Tone Imports | Product Reviews | Show Coverage | Links | Contact

Tone Imports is the North American Importer and Distributor for AcousticPlan, Auditorium 23, EMT, Leben Hi-Fi, LigoLab, Line Magnetic Audio, Sentec, and Shindo Labs