Musical Fidelity kW 750 manual KW Phono

Page 7

kW Phono

PREAMPLIFIER

Output :

Voltage RMS, maximum Impedance

Frequency response deviation from RIAA

Input :

Total harmonic distortion + noise, 20Hz to 20kHz

Input sensitivity for 300mV RMS output Input impedance

Overload margin

Channel separation

Channel balance error

Signal / noise ref. 1Volt RMS output

.SPECIFICATIONS.

>43 Volts

32 Ohms

20Hz to 20kHz ±0.1dB

<0.012% (MM, 10 Volts output)

2.9mV Moving Magnet, 500µV Moving Coil

MC : Switched, 10 Ohms or 100 Ohms in parallel with 470pF

MM: All switches up : 68k Ohms in parallel with 47pF, Switch no. 1 down : 47k Ohms + 47pF,

Switch no. 2 down : extra 50pF added,

Switch no. 3 down : extra 100pF added,

Switch no. 4 down : extra 200pF added

42dB above rated input at 1kHz (MM)

>64dB 20Hz to 20kHz < 0.5dB typical

>78dB Moving Magnet (“A”-weighted)

>75dB Moving Coil (“A”-weighted)

Frequency response reference IEC, RIAA - see graph . . . .

 

20.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10.0

 

 

 

 

 

 

 

 

PHONO RESPONSE

 

5.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

dB

0.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-5.0

 

 

RIAA

 

 

 

 

 

 

 

 

 

 

 

 

PHONO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-10.0

 

 

RIAA/IEC

 

 

 

 

 

 

 

 

 

 

-15.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-20.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20.0

31.5

50.0

80.0

125

200

315

500

1000

1600

2500

4000

6300

10000 16000

Frequency (Hz)

Input sockets :

2 phono Moving Magnet via RCA connector

 

2 phono Moving Coil via RCA connector

Output sockets :

2 RCA connectors for line level output

Power requirements :

115 / 230 Volts or 100 V AC 50 / 60Hz (factory preset)

 

25 watts maximum

Dimensions :

483mm,

19 inches wide

 

167mm,

6.6 inches high (including feet)

 

456mm,

18 inches deep (including buttons and rear terminals)

Weights :

18.15Kg,

40 lbs unit only, unboxed

 

23Kg,

51 lbs in shipping carton

Standard accessories :

IEC mains lead - 10 Amp type

Musical Fidelity reserves the right to make improvements which may result in specification or feature changes without notice

Issue 1 : January 2005

kW Phono Pre-Amplifier

Instructions for use

Page 7 of 7

 

 

 

 

Image 7
Contents KW Phono IMPORTANT! U.K. only Safety InformationRadio Frequency Interference R.F.I General AdviceRear Panel Front PanelInput Connections ConnectionsOutput Connections Starting Before Switching onPhono MM / MC Switching OperationKW Phono

kW 750 specifications

The Musical Fidelity kW 750 is a flagship stereo power amplifier that embodies the pinnacle of high-fidelity audio technology. Designed for audiophiles seeking exceptional sound quality and performance, the kW 750 is a powerful and sophisticated addition to any high-end audio setup. This amplifier is renowned for its ability to drive even the most demanding speakers, delivering a stunning audio experience that highlights the nuances and details in music.

At the core of the kW 750 is its robust power output, boasting 750 watts per channel into 8 ohms and an impressive 1,500 watts into 4 ohms. This substantial power ensures that the amplifier can handle a wide range of speakers with ease, providing dynamic headroom and precise control during playback. The design philosophy behind the kW 750 is rooted in delivering a pure and uncolored sound, allowing listeners to experience music as the artist intended.

One of the standout features of the kW 750 is its advanced Class A/B topology, which combines the efficiency of Class B amplification with the superior linearity and sound quality characteristics of Class A. This technology results in a clean, warm, and natural sound that is free from distortion, making it suitable for a variety of musical genres. Additionally, the kW 750 utilizes a high-current output stage, ensuring that it can deliver instantaneous power when needed without compromising audio fidelity.

In terms of build quality, the kW 750 is constructed with a focus on durability and aesthetics. The chassis is made from premium materials, providing not only a sleek and modern look but also minimizing vibrations that could affect sound quality. The amplifier features a user-friendly interface with selectable input options, allowing for seamless integration with multiple sources.

Furthermore, the kW 750 incorporates advanced thermal management technology, ensuring efficient heat dissipation during operation. This not only prolongs the lifespan of the amplifier but also maintains optimal performance even during extended listening sessions. The unit is also equipped with a comprehensive set of protection circuits to safeguard both the amplifier and connected speakers from potential damage.

Overall, the Musical Fidelity kW 750 stands as a testament to the brand's commitment to high-end audio excellence. With its powerful output, advanced technologies, and meticulous engineering, it offers a listening experience that is truly transformative, making it an exceptional choice for discerning audiophiles and music lovers.