Full The Absolute Sound Review : MBL C51 Integrated Amplifier
The system's heart or motor, the amplifier, has a special role to play as it carefully "amplifies" the delicate musical signal and controls the loudspeaker, enabling all pieces of musical information to be bundled into a meaningful whole.
The MBL Cadenza C51 provides the strong-hearted foundation of a simpler system by carefully combining the functions of the preamp and amplifier in one elegant chassis.
No compromises here, discrete components fill the input section, MBL's trail-blazing LASA technology provides a powerful and efficient amplifier MBL to its core.
For optimum channel separation and a distinct, true-to-life musical image, MBL have crafted the input stages from carefully selected discrete components. The MBL Cadenza C51 provides full listening pleasure in half the space.
The Cadenza Line hasn't just broken the mould in design terms alone; technically speaking too this new product line sets new standards.
The outer solid aluminium casing contains a second casing of reinforced steel which screens off the electronics in magnetically shielded slots with full electrical isolation of the power supplies units and transformers. The CD player features a state of the art high quality Slot drive and digital RCA and Toslink inputs as well as a native USB dock for CD audio data.
A novel intelligent MBL SmartLink network enables the devices to talk to one another. This means that all associated input signals are controlled by the Pre-Amplifier or Integrated Amplifier and a simple touch of the button on a device or the remote control is all that you need to put the whole Cadenza system on standby. The power consumption is then under 1 VA (Green Standby).
The MBL Cadenza Line is a fully rounded statement of our proven expertise in audio engineering and design _ a consummate fusion of perfect acoustics and design. A truly alluring entry to the world of high end audio.
General
Weight : 23 kg / 50.7 lbs
Dimensions (without cables) : W 45,0 cm / D 44,5 cm / H 14,5 cm
W 17.7 in / D 17.5 in / H 5.7 in
Dimensions with packaging : W 59,0 cm / D 54,0 cm / H 35,5 cm
W 23.2 in / D 21.3 in / H 21.9 in
Line Voltage : 230 Vac / 50 Hz or 115 Vac / 50/60 Hz
(single voltage, factory setting depending on country)
Power consumption
- in stand by< 0.5 VA
- in idle< 70 VA
- Maximum< 1000 VA (w. 2 x 300 W @ 4 Ohm)
Connections
Inputs
RCA unbalanced : 2 x MBL CD1 / CD2, 2 x Tuner AUX1 / AUX2, 1 x Processor By-Pass
XLR balanced (unity gain) : 1 x Symmetrical
Options : 1 x optional 2nd Symmetrical In (XLR) or 1 x optional Phono Module (RCA)
Outputs
RCA unbalanced : 1 x Variable Out, 1 x Fixed Record Out
Loudspeaker : 1 x pair Loudspeaker Binding Posts
Other : Ground Terminal, 2 x MBL SmartLink
Preamplifier Section
Output Level / Maximum Output
Variable unbalanced RCA Outputs : : 0 5 V @ 2 V Input, max 1.7 V *1 (According to Volume Setting)
*1: Input Voltage for Rated Power
Fixed Record Output : 2 V @ 2 V Input, max. 8 V
Nominal / Maximum Input Level : 2 V / 8V (According to Volume Setting)
(All Inputs except Phono)
Absolute Polarity : In-Phase (RCA / XLR Pin2)
Frequency Range : DC - > 200 kHz
(All Inputs and Outputs except Phono)
Output Impedance
Input Impedance
- CD and Processor By-Pass Inputs : 5 kOhm
- AUX Inputs : 50 kOhm
- XLR Input : 10 kOhm
Signal to Noise Ratio : > 110 dB (A) @ 2 V Input, Volume set to 0 dBr / unity gain
(All Inputs and Outputs except Phono)
Channel Separation : > 100 dB @ 1 kHz
(All Inputs and Outputs except Phono)
Total Harmonic Distortion + Noise : < 0.001 % @ 2V Input / 1kHz, Volume set to 0 dBr / unity gain
(All Inputs and Outputs except Phono)
Power Amplifier Section
Rated Power
- Stereo 2 Ohm : 2 x 400 W
- Stereo 4 Ohm : 2 x 300 W
- Stereo 8 Ohm : 2 x 180 W
Peak Output Voltage : 62 Vp
Peak Output Current : 20 Ap
Input Sensitivity (RCA / XLR) : 100 mV for 1 W @ 4 Ohm
Rated Input Voltage (RCA / XLR) : 1.70 V for 300 W @ 4 Ohm
Voltage Gain : 20 (26 dB)
Absolute Polarity : In-Phase
Signal / Noise Ratio @ Rated Output : 122 dB (A) @ 300 W / 4 Ohm
Signal / Noise Ratio @ 1 Watt : 98 dB (A) @ 1 W / 4 Ohm
Equivalent Input Noise : 124 dB (A) @ 2 V Input
Frequency Response : < 10 Hz 45 kHz
Distortion THD+N : Typ. 0.01 % @ 3 W from 20 Hz 20 kHz
Damping Factor : > 100 (40 dB) @ 1 kHz / 4 Ohm
Channel Separation : > 90 dB @ 1 kHz