Sennheiser HD 600 Headphones Kit with Grace Design M900 Amplifier

Sennheiser, Condition:New
644.39
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SEHD600HAK
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Audio professionals and music enthusiasts in need of a professional-grade headphone monitoring system will be impressed with this Kit, which combines the Sennheiser HD 600 Circumaural Headphones with the Grace Design m900 Compact, Portable Headphone Amp, DAC, and Preamp to create a turnkey monitoring solution for mixing and critical listening.

Sennheiser HD 600 Circumaural Headphones

Audiophile-quality professional stereo headphones, the Sennheiser HD 600 utilizes two-layer diaphragm technology to radically reduce surface born resonance. A powerful neodymium ferrous magnet is optimized to control the motion of the diaphragm, which provides deeper bass without the loss of definition.

Complementing the diaphragm and driver magnets are triple wound aluminum voice coils, which are housed in an acoustically transparent ear cup, maximizing the benefits of the open design. The HD 600 is an ideal choice for the professional recording engineer, providing an uncolored and spatially accurate rendition of program material, especially classical music.

Open circumaural high-definition stereo headphone

High-quality open metal mesh earpiece covers aid in delivering extremely transparent sound

Computer optimized magnet system minimizes harmonic and intermodulation distortion

Duofol diaphragms to reduce standing waves for distortion free sound

Neodymium ferrous magnet system ensures optimum sensitivity and dynamic response

Extremely lightweight aluminum voice coils for highest transient response

Very comfortable to wear due to padded design

Detachable OFC copper cable

EAN: 615104340459

Grace Design m900 Compact, Portable Headphone Amp, DAC, and Preamp

The Grace Design m900 is a compact, portable headphone amplifier, DAC, and preamp, well suited for audio professionals, music enthusiasts, or anyone looking for transparent playback from USB, S/PDIF, or TOSLINK sources. For small DAW setups, the m900 provides the same analog and DAC quality as Grace Design s large monitor controllers, but in a rugged, portable, and surprisingly affordable unit.

The heart of the Grace Design m900 features the latest generation AKM 4490 chip, which includes 32-bit processing and support for sample rates up to 384 kHz or DSD256. The USB interface operates in asynchronous mode allowing the m900 to be the clock master, which makes the system immune to USB bus jitter. S/PDIF and TOSLINK inputs enhance any DAW interface with true reference-quality D/A conversion, headphone monitoring, and stereo speaker control.

The intelligent power supply design allows for two power operation modes, Low and High. Low power mode is derived from USB connection 1, which provides bus power along with data, allowing simple operation from a single connection to a computer. High power mode is available by connecting the included 2A USB DC power supply to USB connector 2, which provides additional power for high-impedance headphones.

The Grace Design m900 utilizes trans-impedance amplifier topology coupled to a zero-ohm output impedance driver for headphone performance that is spacious and transparent with a tight, enveloping low end, while the latest generation cross-feed circuit rounds out the design by emulating an acoustic listening environment in the headphones. The Grace Design m900 ships with a 2A USB power supply and two USB Type-B mini-cables (6 and 10 .)

  • USB, S/PDIF and TOSLINK digital inputs, supports up to 192 kHz (TOSLINK up to 96 kHz)
  • Asynchronous USB interface for jitter free computer audio playback, supports up to 384 kHz PCM and DSD256
  • Dual zero-ohm output impedance headphone outputs
  • Unbalanced level controlled outputs via RCA for connecting to a stereo monitor system
  • Compact, portable chassis perfect for travel, desktop or studio
  • Low power mode via USB Bus power
  • High power mode via included USB 2A power supply
  • Four different DAC filter settings to tailor playback performance to personal preference
  • Simple user setup menu for setup and calibration
  • Display: 7-segment LED displays level and setup menu information
  • Large rotary encoder for volume control and setup menu navigation
  • Made in the USA
  • 5-year transferable warranty

EAN: 823821009003

Sennheiser HD 600 Circumaural Headphones Specs

Headphone

Earpiece DesignOver-Ear (Circumaural), Open-Back
Earpiece SwivelNo
Earpiece Connection / Wearing StyleHeadband
FoldableNo
Driver TypeDynamic
Driver Size1.7" / 42 mm
Magnet TypeNeodymium
Impedance300 Ohms
Active Noise CancellationNo
Contact Pressure6 N

Performance

Frequency Response12 Hz to 40.5 kHz
Maximum Sound Pressure Level (SPL)97 dB at 1 Vrms
Maximum Power Handling200 mW
Total Harmonic Distortion (THD)0.1%

Wired Connectivity

Audio Connector to Source1 x 1/8" / 3.5 mm TRS Male
Adapter (Included)1/4" TRS
Audio Connector to Earpiece2 x 2-Pin Male
Cable Length9.8` / 3 m

Physical

ColorBlue/Gray
Environmental ProtectionNone
Weight9.2 oz / 260 g

Packaging Info

Package Weight1.2 lb
Box Dimensions (LxWxH)12.9 x 10.2 x 4.35"

Grace Design m900 Compact, Portable Headphone Amp, DAC, and Preamp Specs

ConnectorsInputs
Digital Inputs: S/PDIF and TOSLINK
USB Power: Micro-USB 5 V, 2 A (high power input)
USB Data: Micro-USB 2.0 (for data, signal, bus power input)

Output
Stereo Line Outputs: RCA (L/R)
Headphone: 2 x 1/4" / 6.35 mm
Display7-segment LED
THD + NTHD+N 1 kHz, 22 Hz - 22 kHz BW
@1.0 V Out, No Load: <0.002%
@1.0 V Out, 32 Ohms Load: <0.010%
Intermodulation DistortionIntermodulation Distortion SMTPE/DIN 4:1 50 Hz, 7 kHz
@1.0 V Out, No Load: <0.008%
@1.0 V Out, 32 Ohms load: <0.009%
Frequency Response ± 3dBFs=96 kHz: 0.5 Hz to 45.9 kHz
Dynamic Range20 Hz to 22 kHz Bandwidth: 112 dB
20 Hz to 22 kHz Bandwidth and A-Weighting Filter: 115 dB
Output Noise20 Hz to 22 kHz, Volume = 0-90: -106 dBV
A-Weighting Filter, Volume = 0-90: -109 dBV
20 Hz to 22 kHz, Volume = 90.5-99.5: -96 dBV
A-Weighting Filter, Volume = 90.5-99.5: -98 dBV
Crosstalk100 Hz: <107 dB
1 kHz: <98 dB
20 kHz: <72 dB
AttenuationAttenuation Range: 0 to -99 dB, 0.5 dB steps
AccuracyChannel Tracking Accuracy: ±0.05 dB
Maximum Output LevelMaximum Output Level, No load
Low Power Mode: +14.1 dBV (5.1 V)
High Power Mode: +15.5 dBV (6.0 V)
ImpedanceHeadphone Output: 0.08 Ohms
Line Output: 47.5 Ohms
Lock RangeS/PDIF
44.1 kHz: 43870-45420 Hz
48 kHz: 46590-49220 Hz
88.2 kHz: 87760-90830 Hz
96 kHz: 93520-98430 Hz
176.4 kHz: 175700-181640 Hz
192 kHz: 187050-196380 Hz

TOSLINK
44.1 kHz: 43900-45410 Hz
48 kHz: 46590-49190 Hz
88.2 kHz: 87840-90830 Hz
96 kHz: 93520-97530 Hz

USB Supported Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384 kHz
Power ConsumptionMax, High Power Mode: 8.0 W
Max, Low Power Mode: 2.5 W
Power ModeHeadphone Output Power
Low Power Mode

1 Channel Driven
4 Ohms: 80 mW
8 Ohms: 140 mW
16 Ohms: 310 mW
20 Ohms: 350 mW
32 Ohms: 600 mW
50 Ohms: 560 mW
300 Ohms: 83 mW
600 Ohms: 40 mW

2-Channels Driven
4 Ohms: 22 mW
8 Ohms: 45 mW
16 Ohms: 90 mW
20 Ohms: 100 mW
32 Ohms: 175 mW
50 Ohms: 280 mW
300 Ohms: 83 mW
600 Ohms: 40 mW

High Power Mode

1 Channel Driven
4 Ohms: 925 mW
8 Ohms: 1800 mW
16 Ohms: 1900 mW
20 Ohms: 1575 mW
32 Ohms: 1020 mW
50 Ohms: 680 mW
300 Ohms: 115 mW
600 Ohms: 57 mW

2-Channels Driven
4 Ohms: 240 mW
8 Ohms: 490 mW
16 Ohms: 940 mW
20 Ohms: 1030 mW
32 Ohms: 950 mW
50 Ohms: 650 mW
300 Ohms: 115 mW
600 Ohms: 57 mW

Dimensions4.0 x 5.3 x 1.8" / 101.6 x 133.4 x 45.7 mm
WeightNot specified by manufacturer

Packaging Info

Package Weight2.325 lb
Box Dimensions (LxWxH)10.35 x 10.3 x 4.5"

In the Box

    • Sennheiser H50635 - Ear Cushions for Sennheiser HD545/565/580 Headphones - Pair
    • 1/4" Adapter
    • 2-Year Manufacturer Warranty
    • USB Wall Power Supply
    • 2 x USB Type-B Mini Cable: 6` and 10`
    • 5-Year Manufacturer Warranty
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