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Specifications – Manley MAHI MONOBLOCK AMPLIFIER User Manual

Page 16

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SPECIFICATIONS

Input Impedance: 110 Kohm
Input Sensitivity:

TRIODE

UL

FB MIN:

175mV

155mV

FB STD:

312mV

340mV

FB MAX:

480mV

566mV

Gain: 29dB
Negative Feedback: MIN= 3dB; STD=6dB; MAX=10dB of global NFB
Max. Output Power defined as power output reaching 1.5% THD @ 1KHz
into 5 ohms:

TRIODE

UL

FB MIN:

18W

20W

FB STD:

27W

42W

FB MAX:

28W

46W

into 8 ohms:

TRIODE

UL

FB MIN:

14W

24W

FB STD:

24W

40W

FB MAX:

25W

41W

Signal to Noise Ratio Ref. 1W:

Typically 82 dB A-WGT 20-20K

Noise Floor:

Typically 150µV = -74dBu A-WGT

Typically 650µV = -62dBu unweighted

Dynamic Range:

83dB

THD+noise @ 5W

less than 0.15%

Frequency Response at full power UL mode w/MAX NFB:

20 Hz to 20 kHz FLAT

Frequency Response at 5W into 5 ohms:

10 Hz to 30 kHz FLAT, -3.75dB @ 100KHz

Recommended Speaker Load:

Optimized for 5 ohms

Actual Output Impedance:

TRIODE

UL

FB MIN:

2.83 ohms

3.57 ohms

FB STD:

1.87 ohms

2.16 ohms

FB MAX:

1.28 ohms

1.36 ohms

Power Consumption (idle):

102 Watts (0.85A @ 120VAC)

Power Consumption (at Rated Full Power):

168 Watts (1.4A @ 120VAC)

Vacuum Tubes: 1 x 12AT7WA Ei, 1 x 6414 JAN NOS, 4 x EL84 Output per monoblock
Output Tube Quiescent Standing Current: 25mA
Set Bias for 250mVDC measured across each 10 ohm cathode resistor
Fuse types for 120VAC operation:

MDL or MDA 3 AMP / 250 Volt SLO-BLO

240VAC operation:

MDL or MDA 2 AMP / 250 Volt SLO-BLO

B+ FUSE:

MDA 4/10th AMP, 250 Volt SLO-BLO

Dimensions: 11" deep x 10" wide x 5" tall
Shipping weight each: 18 pounds

Specifications subject to change because they just might.

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