Manley Chinook Phono Stage (Open Box)
- Product Code:
- Manley Labs
- Manley Chinook Phono Stage (Open Box)
- Setup Instructions
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Beautiful build quality
Handcrafted in the USA
Flexible cartridge loading options
Angling for an affordable yet world-class vacuum tube phono stage? The hunt is over! The spawn of the Manley Steelhead - one of the world's greatest phono preamplifiers - Stereophile Class A Recommended Component and The Absolute Sound's Preamp of the Year, has arrived. The Chinook epitomizes the sound of the Steelhead. Designed for the music lover, not the switch tweaker.
Like the Steelhead, each channel employs the two triode sections of a 6922 for amplifying duties with highly accurate passive RIAA equalization networks. In the Chinook, the signal is then directly coupled to another 6922 dual triode serving as the output driver in a White Follower configuration. This output stage circuit is our favorite because of its super-low output impedance and beefy current-driving capabilities. It can drive long cable lengths and difficult loads, tube or solid-state. Bring it on. No wimpy cathode followers here!
Setting up the Chinook couldn't be easier. There are two internal settings for optimal gain: 45dB for Moving-Magnet cartridges and 60dB for Moving-Coil cartridges. Set it and forget it! The back panel contains DIP switches for adjusting the input resistive and capacitance loading values. 31 possible options between 26 and 800 Ohms plus 47k Ohms and 7 capacitive loading choices between 50 pF and 350 pF provide flexibility to match any cartridge and fine tune the tone. Audiophile-grade and time-proven componentry is used throughout, embodying Manley's dedication to seductive sonics, combined with the reliability that professionals around the world depend on. At just about a quarter of the price of our revered Steelhead preamplifier, the Chinook's focus is on elegance of design, careful execution, efficient construction, and appreciable quality.
Designed and built in California, the Chinook exemplifies Manley's commitment to our local community and to a simple, clean, and quiet signal path. The Chinook demonstrates the supreme linearity of vacuum tubes while providing the flexibility needed to embrace any turntable setup. Everything from the most exotic 180 gram audiophile pressing to 25 cent thrift-store classics will be reproduced accurately and musically.
Don't let this one get away! Hook a Chinook!
W=19", L=11", H=3 1/2"
Vacuum Tube Complement: 6922 x 2 (gain stage) plus 6922 x2 (output stage). Any 6DJ8, 7308, ECC88 types may be used.
Unbalanced Input and Output connections via Manley Teflon® & Gold plated RCA jacks
Automatic Mute Timer: On initial power up output jacks are muted for approximately 45 seconds. Automatic mute circuit allows tubes to warm up and circuitry to settle. At power down, output jacks are immediately muted.
Input Termination Capacitance (MM/MC): 3-position user-selectable capacitor values of 50pF, 100pF, and 200pF yield resultant combinations of: 50, 100, 150, 200, 250, 300, and 350pF Moving Magnet Input Impedance: 47k Ohms, fixed
Moving Coil (MC) Input Impedance: 5-position user-selectable resistor values of 50, 100, 200, 400, and 800 Ohms. There are 32 possible loading possibilities.
Gain: Internal DIP switches select 45dB or 60dB
Deviation from RIAA curve: Less than ± 0.5 dB from 20Hz to 20kHz at any gain setting. Typically less than ±1dB from 10Hz to 100kHz.
Distortion (THD+N) (47k Ohm Input Termination, 45dB gain, 1kHz sine, 0dBu output): Typical 0.010% THD+N, into 100k Ohm load, BW = 100Hz-22kHz
Distortion (THD+N) (47k Ohm Input Termination, 45dB gain, 1kHz sine, 0dBu output): Typical 0.030% THD+N, into 600 Ohm load, BW = 100Hz-22kHz
Dynamic Range (MM input, Gain set to 45db, 200 Ohm source): 91dB @ 1kHz, 0.1% THD+N, BW = 22Hz-22kHz
Dynamic Range (MM input, Gain set to 45db, 200 Ohm source): 107dB @ 1kHz, 1.0% THD+N, BW = 22Hz-22kHz
Noise Floor at 45dB gain setting with shorted input: -84 dBu, A-weighted
Noise Floor at 60dB gain setting with shorted input: -75 dBu, A-weighted
Maximum Input at 45dB gain setting with 20 Ohm Source Z @ 1kHz into 10 kOhm load: 250mV RMS = +34.5 dBu @ 1% THD+N BW=22Hz-22kHz
Maximum Input at 60dB gain setting with 20 Ohm Source Z @ 1kHz into 10 kOhm load: 40mV RMS = +34.2 dBu @ 1% THD+N BW=22Hz-22kHz
Maximum Output: +37dBu @ 1kHz, 1.5% THD+N into 100 kOhm load
Output Impedance: 91 Ohms
Minimum Recommended Load: 2500 Ohms
Internal Power Supply: Fully regulated linear B+, Heater, and control voltage rails.
Operating Mains Voltage: Units are built for original destination country's mains voltage: 100V, 120V, or 220-240VAC as indicated on the serial number badge.
Power Consumption in Standby mode: 1 Watt (8.0mA @ 120VAC)
Power Consumption: 42 Watts (345mA @ 120VAC)
Mains Voltage Frequency: 50~60Hz
Power Transformer: Toroid contruction for low radiation.
Mains Fuse for 100V operation: 600mA SLO-BLO size 5mm x 20mm
Mains Fuse for 117V-120V operation: 500mA SLO-BLO size 5mm x 20mm
Mains Fuse for 220V-240V operation: 250mA SLO-BLO size 5mm x 20mm
Standby Transformer Fuse for all voltage operation 100V-240V: 10mA, SLO-BLO, MDL type size 1/4" x 1 1/4"
Badge Lamp: LED illumination
Shipping Weight: 15 Lbs.
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