Krell FPB-200C power amplifier

Power is a vital key to accurate sound reproduction. But power alone provides but a translucent window; it often dulls our aural perception. For true transparency - the exciting immediacy that conveys both the shudder and the shimmer of today's best sources - power and finesse must go hand in hand.

The FPB amplifiers respond to this challenge with a unique and potent array of highly refined technologies. True balanced signal paths from input to output guarantee virtual immunity from noise  as theyenhance speaker control. Class A operation provides sound gloriously free of switching transients while the Krell patented Sustained Plateau Bias II circuitry avoids the heat and inefficiencies of less sophisticated implementations. CAST, a radical and illuminative revision of the system-amplifier interface, eliminates cable variations that can adversely affect sound.

Thus, every amplifier in the FPB Series provides absolute and unwevering control.

Specifications

Output Power (Each Channel Driven):

300 W at 8 Ω

600 W at 4 Ω

1200 W at 2 Ω

Output Volyage: 

Peak to Peak :  170 V

RMS :  60 V

Frequency Response:  20 Hz -20 kHz (+0 dB, -0,05 dB)

Signal-to-Noise Ratio (A weighted):  117 dB

Gain:  26,4 dB

Total Harmonic Distortion (All Balanced, Unweighted): 

At 1 kHz :  less than 0,02%

At 20 kHz :  less than 0,15%

Input Sensitivity/Impedance:  2,35 V (RMS)/ 100 k Ω

Inputs: 

1 pair balanced via XLR connectors

1 pair CAST via 4-pin bayonet connectors

Outputs Speaker Binding Posts:  4 pair (upper left and right, lower left and right)

Power Consumption: 3000 W (Max); 350 W (Idle), 75 W (Stand by)

Dimensions (W x H x D):  483 x 262 x 500 mm (19,0 " x 10,3" x 19,7")

Weight (unit only):  50 kg (110 lb)

Krell FPB-300C power amplifier

Full Power Balanced amplifirs can be configurated to accommodate any sophisticated music or home theater system and can be operated by an optional remote control through the remote control of other Krell components.

The Full Power balanced series of amplifiersconsist of three stereo amplifiers, the FPB 200C; 300C; 600C and three nonaural amplifiers , the FPB 250Mc; 350Mc; 650Mc. Installation, connection, and operation of all amplifiers in the Full Power balanced series are identical; however, a pair of Full Power Balanced Monaural amplifier are required for stereo operation.

Krell Current Audio Signal Transmission  - CAST

A propietary Krell circuit technology for coneccting analog components, in which the audio waveform is transmitted between components in the current rather than voltage domain. The speed and bandwidth provided by Krell CAST yields accurate, realistic music reproduction. Krell components connected via CAST perform as if they are all part of a single circuit.

A symmetrical input or output circuit that has equal impedance from both input terminals to a common ground reference point. The industry standard for profeassional and sound recording installations, balanced connections have 6 dB more gain than single-ended connections and allow the use of long interconnected cables. Balanced connections are completely immune to induced noise from the system or the environment.

A two-wire input or output circuit. Use care when using single-ended connections as the ground connection is made last and broken first. Turn the system off prior to making or breaking single-ended connections. Single-ended connections are not recommended for connections requiring long cable runs.

Specifications

Output Power (Each Channel Driven):

300 W at 8 Ω

600 W at 4 Ω

1200 W at 2 Ω

Output Volyage: 

Peak to Peak :  170 V

RMS :  60 V

Frequency Response:  20 Hz -20 kHz (+0 dB, -0,5 dB)

Signal-to-Noise Ratio (A weighted):  117 dB

Gain:  26,4 dB

Total Harmonic Distortion (All Balanced, Unweighted): 

At 1 kHz :  less than 0,02%

At 20 kHz :  less than 0,15%

Input Sensitivity/Impedance:  2,35 V (RMS)/ 100 k Ω

Inputs: 

1 pair balanced via XLR connectors

1 pair CAST via 4-pin bayonet connectors

Outputs Speaker Binding Posts:  4 pair (upper left and right, lower left and right)

Power Consumption: 3000 W (Max); 350 W (Idle), 75 W (Stand by)

Dimensions (W x H x D):  483 x 262 x 500 mm (19,0 " x 10,3" x 19,7")

Weight (unit only):  50 kg (110 lb)

Krell CD-DSP

Integrated Compact Disc player The Krell CD-DSP is the first integrated compact disc player to combine an updateable software-based processor with a high-end CD transport. The processor and transport are coupled to extremely flexibleinput and output  sections, creating a product of unique function and value. Audiophiles can now gain the advanced performance capabilities of separate components in a single unit.

Software-based Processing

The CD-DSP processor uses a 16 times oversampling version of our Waveform Duplicator software, which is run on a Motorola DSP-56001 digital signal processor. The extraordinary resolution of fine detail and accuracy of waveform reconstruction achieved is not possible by other methods. The processor output is routed to a Class A balanced analog output stage. The result is a sonic quality distinguished by robust dynamic impact, extended frequency response and three dimensional imaging.

The Waveform Duplicator software is loaded into socket-mounted Eprom chips to allow inexpensive software updates in the future .

Transport and Operational Features

The CD-DSP is built around the CDM-1 MK II Philips finest transport for CD player applications system absorbs extraneous vibrations that might interfere with data recovery from the disc.

The CD-DSP is destined to become the digital heart of any audio system. Three inputs and two outputs provide connection to other sources in the digital domain. Two analog outputs allow the CD-DSP to drive independent systems.

Whether you are considering yout first CD player or the replacement of an existing unit, the CD-DSP is your invitation to the future.

Specifications

Transport:  CDM-1 MkII Philips, with Hall effect motor, swing-arm design in a unicast frame.

Laser:  Single Beam with glass lens

Frequency Response:  20 Hz to 20 kHz (±1 dB)

Sampling Frequency:  16 times over

DAC:   18 Bit

Analog Output Voltage:  2,1 Volts RMS

Remote Control:  Wireless infrared

Dimensions (W x H x D):  480 x 305 x 152 or 381 mm (19" x 12-1/2" x 6" or 15")

Weight:  10,4 kg (23 lbs)