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Pass Labs X350.5

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Stereo Power Amplifier “It provides truly compelling listening sessions with your music collection—fatigue-free, imagination-inspiring, emotion-filled listening sessions. Its prodigious power, natural tonal balance, and liquidity impart a solid foundation to even the most demanding music while caressing delicate passages with a silky fine touch. I can’t think of a more powerful and non-fatiguing amp close to its asking price. Highly recommended.”

£11,500.00 £5,990.00


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Point 5 Amplifiers

The Point 5 Series represented a highpoint in the evolution of our amplifiers. At the time we introduced our X.5 and XA.5 models, our R&D laboratories had accumulated several significant performance improvements we were eager for our customers to experience.

Two hallmarks of Point 5 Series amplifiers are improved power and control. They possess the dynamic range to do justice to the most advanced recordings, the elegance to retrieve the most sensitive microdynamics loudspeakers offer, and the ability to move easily from total silence to explosive transients without losing information. We achieved these ends through

a number of refinements. For example, we replaced the input differential MOSFETs on our amplifiers with the same JFETs we use for the input devices on our MM and MC phono stages.

The JFETs deliver less noise, higher input impedances, and greater linearity. They operate self-biased within a symmetric quad topology in which each device is cascoded and level-shifted to form the full voltage gain stage of the amplifier. We also added more power-output devices, especially complementary power MOSFETs that provide more current and better power handling

and linearity. In addition, our Point 5 output stages use a heavy bias current for push-pull, Class-A operation to a large portion of the rated power as well as a bias source for single-ended Class-A operation at low wattages. We also installed a newly developed bias generator to eliminate three sources of bias-current variation

in the output stage. The new bias circuit also allows approximately 20 percent greater power output for a given supply voltage. Of critical importance, the Point 5 circuits resulted in lower distortion at all power levels and into all types of loads, particularly in the critical audio midrange.

Brand: Pass Labs

Model Name/Number: X350.5

Price (RRP): £11500

Choice Hifi Price: £5990

Product Information:

Specifications:

X1000.5

X600.5

X350.5

X250.5

X260.5

X150.5

Class

AB

AB

AB

AB

AB

AB

Type

Mono

Mono

Stereo

Stereo

Mono

Stereo

Gain (dB)

26

26

26

26

26

26

Full Pwr @ 26 dB gain (V)

4.47

3.46

2.65

2.24

2.2

1.73

Low Frequency Response

1.5 Hz

1.5 Hz

1.5 Hz

1.5 Hz

1.5Hz

1.5 Hz

High Frequency Response

100 KHz

100 KHz

100 KHz

100 KHz

100KHz

100 KHz

Power Output /ch (8 ohm)

1000

600

350

250

260

150

Power Output /ch (4 ohm)

2000

1200

700

500

520

300

Distortion, (1 KHz, full power)

1%

1%

1%

1%

1%

1%

Maximum Output (Volts)

127

99

76

64

64

50

Maximum Output (Amps)

48

36

28

20

20

18

Input Impedance (Kohms)

30 / 20

30 / 20

30 / 20

30 / 20

30 / 20

30 / 20

Damping Factor

200

200

150

150

150

150

Slew Rate (V/uS)

50

50

50

50

50

50

Output Noise (uV)

200

200

200

200

200

200

Input CMRR (dB)

-60

-60

-60

-60

-60

-60

DC Offset (V)

0.05

0.05

0.05

0.05

0.05

0.05

Leaves Class A at pk Watts:

80

80

40

15

5

10

Power Consumption (W)

700

600

600

300

200

200

Temperature (deg C.)

53

53

53

53

53

53

Dimension (W x H x D)

19 x 11.2 x 27.5

19 x 11.2 x 22.5

19 x 11.2 x 22.5

19 x 9.2 x 21.5

19 x 7 x 19.2

19 x 7 x 19.2

Unit Weight (LBS)

183

132

132

88

62

62

Ship Weight (LBS)

203

150

150

105

75

75

Age: 4 Years 6 months

Condition: 10/10

Voltage: 220/240/50Hz

Finish/Colour: Silver

Packaging? Yes

Accessories? Yes

Item Location: In Stock

Status: Second Hand

Dimensions 5708473 cm