Drawmer M-Clock

DRAWMER M-CLOCK

Drawmer M-Clock: In today's studio where increasing numbers of digital devices need to be interconnected, maintaining digital signal integrity can be a serious problem. The traditional professional solution has been to use an expensive master clock that drives all the digital equipment in the studio, but in many different types of studios there are often pieces of equipment that don't have wordclock inputs such as consumer CD players, MD recorders, DAT machines and budget computer soundcards.

Drawmer's unique solution to this dilemma is the Drawmer M-Clock, an affordable yet extremely highly specified, multiple output master clock generator that also incorporates four further channels of sample-rate-conversion, all locked to the same master clock. There are also alternative sync outputs for those pieces of equipment without wordclock connections that can be sync'ed via their digital audio inputs using a 'black' signal carrying no audio information.

The advantages of combining wordclock with multiple channels of 'clock-locked' sample rate conversion are significant and often under-appreciated. With Drawmer M-Clock, all your 'pro' and consumer digital equipment can run in the same system, locked to the same clock, with no worries about finding a suitable sync source. You'll find you're no longer having to switch equipment between internal and external sync as you repatch - and the M-Clock's  ultra-precision, low-jitter clock helps maintain optimum stereo imaging, lower noise and lower distortion. If you have multiple pieces of digital equipment in your studio, whether professional or a mixture of professional and consumer, Drawmer M-Clock is probably the most effective upgrade you can make for anything like the price.

MASTER CLOCK GENERATOR
Uses ultra low jitter, AES grade 1 stability temperature compensated xtal oscillators (TCXOs) syncronising 24 outputs in total

• 8 wordclock outputs offering frequencies from 44.1k-192kHz, + superclock option
• 4 blank frame AES11 outputs at sample rates from 44.1-96kHz
• 4 channels of stereo up/down sample rate conversion each with 3 simultaneous outputs

INTERNAL CLOCK GENERATOR

• 2 x Temperature Compensated Xtal Oscillators (TCXOs) - AES11 GRADE 1 Stability

- Tolerance +/-1ppm (0-60 Celcius), +/-1ppm (15-30 Celcius)
- Phase noise -130 dBc/Hz @ 1kHz - @ 24.5760 MHz to give Fs
  48 kHz, 96 kHz & 192 kHz + 256Fs (superclock) @ 22.5792 MHz to give Fs
  44.1 kHz, 88.2 kHz & 176.4 kHz + 256Fs (superclock) 

WORD CLOCK OUTPUTS

• Output impedance 22.5 ohms giving 4v / pk-pk into 75 ohms
• Outputs 1-4 selectable between 44.1, 48, 88.2, 96 kHz
• Outputs 5-6 selectable between 44.1, 48, 88.2, 96, 176.4, 192 kHz
• Outputs 7-8 selectable between 44.1, 48, 88.2, 96, 256Fs - (Superclock)

AES 11 OUTPUTS

• 2 x Neutrik XLR 110 ohm source @ 44.1, 48, 88.2, 96 kHz
• 2 x Gold Plated Phono 44.1, 48, 88.2, 96 kHz

SAMPLE RATE CONVERSION

• 4 x Stereo Sample Rate Converters: full up/down conversion / 2 x Neutrik XLR AES/EBU inputs / 1 x Phono SPDIF input
• 1 x Switchable Phono/TOSLINK input (Front Panel)
• All outputs simultaneous on 4 x AES/EBU XLR / 4 x SPDIF Phono / 4 x TOSLINK THD+Noise  120 dBFs