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300B Preamplifier
The 300B provides truly appropriate power and voltage swing for headphones and makes a remarkable line driver. The impedances are not too low and the power requirements are not too high, it is ideal for this kind of tube in a single-ended configuration. Manley combine the historic 300B with another classic, the large octal based 6SL7GT, for the input stage- all triodes running in pure Class A operation. To complement this 'retro' feel, Manley implemented vacuum tube rectification (two 5AR4's) and regulation (two OD3's) in the power supply along with plenty of capacity. Manley also developed an additional (and innovative) ripple rejection circuit to filter out power supply noise making this an incredibly low-noise preamplifier- especially critical for headphone users.
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Control Master
The Control Master PreAmplifier is in two versions, Line only or with Phono (MM & MC). The design is completely Dual Mono with separate power supplies for each channel including two custom designed power transformers. The audio boards are also separate. All the wiring from the rear input connectors to the front selector switch and precision custom stepped attenuator is painstakingly hand wired using professional studio twisted pair shielded six 9's copper cable for optimum shielding and low noise characteristics.
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Purist
The line only Purist Preamplifier sets the pace with many of the features common to all the preamplifiers. This preamp is extra flexible in the gain control section. The volume control attenuates the incoming signal level while the gain switch sets overall gain of the input stage by switching the first cathode resistor.
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Reference
The Manley Reference PreAmplifier follows on from the Control Master and is also available in both Line Only and Phono versions. What sets this preamplifier apart is the separate vacuum tube regulated power supply. In the Phono version, ahead of the MM RIAA circuitry, is found our superb Floating Symmetrical Mode Moving Coil stage, which receives the fragile MC cartridge output as a fully differential signal offering excellent hum cancellation properties and wide spatial retrieval abilities. Gain of this stage is adjustable and is ideal for low impedance and medium to high output MC cartridges. Each of the two channels is on separate printed circuit boards and suspended on vibration isolated rubber mounts.
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Shrimp
- Inputs: Five RCA line level
- Frequency Response: 10Hz - 80kHz
- Input Impedance: 250 Kohm
- Output impedance: 50 ohms
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Steelhead
- Dynamic Range: 101dB 1k Hz
- Maximum Output: 27 dam 1 KHz
- Fixed and Variable Outputs
- Built-in volume control
- Power Supply: 18 lbs
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Wave
- 24 Bit 96KHz Digital to Analog
- Totally Dual Mono design
- Vacuum tube output stage
- 4 x switchable digital input AES
- 1 x SPDIF digital output pass-through
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