Archives: Specials

• Analog volume control for RCA and XLR outputs
• Separate volume control for the headphone Jacks
• Digital audio connection to Lighting^TM jack-equipped Apple® devices (USB adapter required)
• Updated headphone amp with increased gain
• 1/4″ and 1/8″ 24k gold plated headphone jacks
• 12V input and output triggers
• Volume control lock out switch
• Premium Analog Devices AD1853 24-bit/192 kHz Digital to Analog Converter IC
• All inputs feature jitter reduction and are re-clocked and up-sampled to 422 kHz / 24 bit
• USB input for playing music from PC or Mac (driver-less for easy setup)
• Asynchronous sample rate conversion for all inputs including the USB input
• Works with any format file on your computer up to 96 kHz / 24 bit
• Optical and Coaxial digital inputs for use with any standard digital connection
• RCA unbalanced and XLR balanced analog outputs
• High current headphone output with volume control can drive any headphones from 32 to 600 ohms
• Oversized internal toroid power transformer (not a wall wart like many competitors)
• Will always power back up to the same input in the event of an AC power outage

Supports Incoming Digital Word Lengths:
16 bit – 24 bit

Supports Incoming Digital Sampling Frequencies:

Opt & Coax: 8 kHz, 11.025 kHz, 16 kHz, 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz.

USB: 44.1 kHz, 48 kHz, 88.2 kHz and 96 kHz

Upsampling Frequency:
422 kHz / 24 bit (all inputs)

USB Streaming Controller:
Texas Instruments TAS1020B

Sample Rate Converter:
Analog Devices AD1895

D to A Converter:
Analog Devices AD1853

Headphone Amplifier:
Texas Instruments TPA6120

Frequency Response:
20 Hz to 20 kHz ±0.2 dB

Channel Balance:
< 0.05 dB, 20 Hz – 20 kHz

Channel Separation:
> 95 dB, 20 Hz – 20 kHz

Signal to Noise Ratio:
110 dB, A-weighted

THD + Noise:
< 0.015 %

Audio Output Level, RMS (maximum):
Unbalanced Variable: 2.4 V
Balanced Variable: 4.8 V
Unbalanced Fixed: 2.2 V
Balanced Fixed: 4.4 V

Output Impedance:

Line out: 160 ohms, unbalanced or balanced
Headphone out: 10 ohms

AC Power Requirement:
110-130 VAC 60 Hz or
220-240 VAC 50 Hz (voltage is selected on the chassis bottom)
Operating: 10 watts
Standby: < 1 watt

Dimensions:
Width: 8.5″ (220 mm)
Depth: 10″ (254 mm)
Height: 2″ (51 mm) with feet, 1.75″ (45 mm) without feet

Weight:
Net: 5 lbs (2.3kg)
Shipping: 8 lbs (3.7kg)

• THX Ultra2 certified
• 150 watts x 2 into 8 Ω (all channels driven)
• 225 watts x 2 into 4 Ω or 2 Ω (all channels driven)
• 400 watts x 1 bridged into 8 Ω or 4 Ω
• 35 amps peak current per channel
• 2 Ohm stable operation with load selector switch
• Two pairs of speaker outputs with front panel A/B buttons
• Rear-mounted lockout switch disables front A/B buttons
• High pass filter, switchable for 20Hz or 40Hz
• Automatic on/off by DC trigger with looping output
• Automatic on/off by audio signal with 2 sensitivity settings
• Fully discrete circuitry with high current toroid transformer
• Bridging switch for stereo or mono operation
• Efficient, low heat design
• DC Servo and relay protection circuits
• Rear-mounted left and right gain controls
• Standby, channel status and high temperature indicators
• Gold-plated RCA input jacks
• Heavy duty 24k gold-plated 5-way speaker terminals
• 115/230v selector on rear panel
• 2U rack mount kit available separately (Model RMK22)

All Channels Driven
150 watts x 2, 8Ω
225 watts x 2, 4Ω
225 watts x 2, 2Ω (Load switch set to 2-3Ω)

Bridged Mono
400 watts x 1, 8Ω
400 watts x 1, 4Ω (Load switch set to 2-3Ω)

Current Capacity
35 amps peak per channel

Frequency Response
20 Hz – 50 kHz, +0/-3 dB, 1 watt
Dynamic Headroom – 1.3 dB

Total Harmonic Distortion
0.25% at full rated output
0.015% at average listening levels

IM Distortion – 0.05 %
Transient IM Distortion – Not measurable

S/N Ratio
114 dB at rated output, IHF A-weighted
106 dB at rated output, unweighted
93 dB at 2.828 V output, IHF A-weighted
84 dB at 2.828 V output, unweighted

Input Impedance – 33 k Ω

Input Sensitivity
1 V in for 28.28 V out, THX standard

Inter-Channel Crosstalk
85 dB @1 kHz, 73 dB @10 kHz, 67 dB @ 20kHz
Damping Factor – Over 150 at 20Hz
12V Trigger Turn On – DC 9 – 12V, 15 mA

Audio Turn On
Quieter: 1 mV
Louder: 6 mV

AC Power Requirement
110 – 120 V / 220 -240 V, 50 – 60 Hz
0.5 watts standby
32 watts Idle (no audio)
550 watts full output

Dimensions
17.25″ Wide
16″ Deep, with cables connected
4.25″ High with feet, 3.5″ panel only (2U)
(437 x 406 x 107mm, 88.2 mm panel only)

Net Weight – 27 lbs (12.3 kg)

Rack Mount Accessory
May be Purchased Separately: RMK22