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TD-1 TWIN DIRECT "Half-Rack" Recording System

Product Description

Honey

Introducing the TD-1 TWIN DIRECT Recording Channel. TWIN DIRECT is a compact yet sophisticated analog "channel strip" for microphones, electric guitars and basses, acoustic instrument transducers, keyboards, DAWs, and all MIDI systems. TWIN DIRECT includes Millennia's acclaimed HV-3 microphone preamplifier, making TD-1 an uncompromised front-end for virtually any audio recording application. Some have called TD-1 a Mini-Origin (view comparison).

Audio engineers no longer need to chose between tube front-end or solid state front-end. TWIN DIRECT's instrument input employs Twin Topology® ~ Millennia's innovative merging of vacuum tube and solid state circuit topologies. TWIN DIRECT offers a high voltage 100% vacuum tube instrument amplifier -or- transparent 100% discrete F.E.T. solid state instrument amplifier in the same indestructable military-grade chassis. Both topologies can be switch selected and musically tuned via three selectable input impedances (470K / 2M / 10M). Up to 65 dB of adjustable microphone and instrument gain is available via front-panel control.

View TD-1 "TWIN DIRECT" Block Diagram (200 kB)

A simultaneous pair of patented REAMP® outputs allow TD-1 to emulate both Les Paul and Strat pickups (Les Paul himself plays through a Millennia Origin). REAMP causes the guitar amplifier to think it's connected to a high impedance passive guitar pickup, instead of a very low impedance (and much too clean) active tape recorder or digital workstation output. Millennia's uncompromised DIT-01 mic-level DI output transformer (Frequency Response -3 dB @ 3 Hz & 300 kHz) is also included.

2003 Blue Ribbon Award
TD-1 Twin Direct

Recording directly from any guitar amplifier is now possible with Millennia's Speaker Soak[TM] technology. Simply connect any speaker output and start recording the authentic character of your guitar amplifier output under true dynamic speaker loading. An audiophile-grade headphone output with separate level control is also provided for pre-auditioning.

A fully sweepable NSEQ-style parametric equalizer (20 Hz - 25 kHz) provides an unlimited range of adjustable tonality. NSEQ is the same equalizer used by top mastering facilities around the globe. Ultra-transparent NSEQ bands are provided for high-resolution audio sculpting of instruments such as guitars, bass, and keyboards, or artistic and corrective work ~ adding "air" and "punch," removing "mud," and so forth ~ all with the smooth and artifact-free audio qualities that NSEQ is well known for.

TD-1 Product Highlights

HV-3 DISCRETE HYBRID MICROPHONE & INSTRUMENT PREAMPLIFIER (+65 dB Gain)
HIGH VOLTAGE 100% VACUUM TUBE INSTRUMENT INPUT + VARIABLE IMPEDANCE (470K to 10M)
100% DISCRETE SOLID-STATE INSTRUMENT INPUT + VARIABLE IMPEDANCE (470K to 10M)
CLASS-A, 100% DISCRETE, DC-COUPLED LINE OUTPUT AMPLIFIER STAGE (-105 dB NOISE)
NSEQ-STYLE FULLY PARAMETRIC DUAL BAND EQUALIZER (FULL SWEEP 20 Hz - 25 kHz)
MILLENNIA DIT-01 DI OUTPUT TRANSFORMER (-3 dB @ 3 Hz & 300 kHz)
PATENTED REAMP® LES PAUL® & STRATOCASTER® GUITAR SIMULATION OUTPUTS (2)
SPEAKER SOAK[TM] DIRECT GUITAR AMPLIFIER INPUT TECHNOLOGY
INTERNAL 50V & 200V HIGH VOLTAGE AUDIO PATH RAILS (LESS THAN .0005% THD)
AUDIOPHILE-GRADE 1/4" HEADPHONE OUTPUT WITH INDIVIDUAL LEVEL CONTROL
INPUT / OUTPUT / POWER GROUND-LIFT SWITCHES ~ TOTAL HUM ELIMINATION
INDESTRUCTABLE STEEL CHASSIS WITH (removable) LEATHER CARRYING HANDLE
EFFORTLESS, LIFELIKE MUSICAL PERFORMANCE AT ALL DYNAMIC LEVELS (+32 dB OUTPUT)
OVERSIZE RUBBER FEET (removable) ~ TAKES BIG ABUSE ON STAGE & STUDIO FLOOR
BUILT-IN COUPLING HARDWARE FOR TD-1 STEREO PAIR IN 19" RACK
WORLDWIDE INTERNAL TOROID POWER, SWITCHABLE 100 / 120 / 220 / 240 VAC
GOLD CONNECTORS, GOLD TUBE SOCKETS, 100,000,000 CYCLE GOLD RELAYS
SILVER / TEFLON POWER WIRING, NEGLEX OXYGEN-FREE AUDIO WIRING
COMPONENTRY SOURCED FROM THE WORLD'S FINEST MANUFACTURERS
GLOVE FITTED, PADDED CORDURA NYLON LOGO GIG BAG AVAILABLE
CONSTRUCTED FOR VINTAGE LONGEVITY, COSMETICALLY APPEALING

Use as much or as little signal processing as you desire. TWIN DIRECT's main signal path employs 100% discrete circuitry from input to output for critical sonic transparency and wide dynamic range. Switch in any number of additional processing features for enhanced utility and innovative functionality. Useful features such as polarity reversal (on all inputs), relay controlled -20 dB auto-balanced PAD (on all inputs), three ground lift switches + isolations (power / input / output), logic-controlled switch mutes, and worldwide internal toroidal power supply (user selectable 100V - 240V) provide enhanced versatility.

The TD-1 TWIN DIRECT has four available audio inputs:

Line Input (XLR)

HV-3 Mic Preamp Input (XLR)

DI Instrument Input (1/4")

Power Amplifier / Speaker Soak[TM] Input (1/4")

All inputs are followed by the NSEQ parametric equalizer. Numerous routing, output, and grounding options round out the TD-1, including nine simultaneous audio outputs and distribution points:

REAMP Stratocaster Guitar Simulation (1/4" phone)

REAMP Les Paul Guitar Simulation (1/4" phone)

Balanced Line Level Output (XLR)

Unbalanced Line Level Output (XLR)

Balanced Mic Level Output (XLR transformer-coupled)

Balanced Line Level Output (1/4" phone)

Unbalanced Line Level Output (1/4" phone)

Headphone Output (1/4" phone with gain control)

Direct "pass-through" Output (1/4" phone)

TWIN DIRECT remains absolutely faithful to Millennia's reputation for sonic accuracy and broad audio functionality ~ the consummate solution to virtually any front-end stage, broadcast, or recording studio application.

TD-1 Product Specifications

MINIMUM GAIN	8.5 dB
MAXIMUM GAIN	*65 dB (up to 85 dB on rqst)**
FREQUENCY RESPONSE (Active) +0 / -3 dB	sub 3 Hz to beyond 300 kHz (varies with topology)
FREQUENCY RESPONSE, DIT-01 TRANSFORMER	sub 3 Hz to beyond 300 kHz (+/- 3 dB)
NOISE @ 60 dB Gain, Mic Input	-129 dB EIN, common inputs
NOISE @ 10 dB Gain, Line Input	-105 dBu
NOISE @ 10 dB Gain, DI Input	-90 dBu (s/s)
TOTAL HARMONIC DISTORTION + NOISE, 35 dB Gain, 10 Hz - 20 kHz bandwidth, +27 dBu Out	< .001%, Typ. < .0005% (< 5 PPM)
INTERMODULATION DISTORTION (50 Hz & 7 kHz) 35 dB Gain, +27 dBu Out	< .0009% Typ.
PHASE RESPONSE 35 dB Gain, 50 Hz - 20 kHz bandwdth, +27 dBu Out	< Less than 5 degrees deviation
COMMON MODE REJECTION RATIO 35 dB Gain, 10 Hz - 20 kHz bandwidth, 100 mV C.M.	> 60 dB, Typ. > 80 dB
SLEW RATE DI INPUT, 35 dB Gain, +27 dBu Out	Minimum 40 Volts per microsecond
MAXIMUM INPUT LEVEL, MIC	+23 dBu unpadded
MAXIMUM INPUT LEVEL, LINE	+23 dBu unpadded (+43 dBu with pad = 110 Volts RMS or 300 Volts Peak to Peak)
MAXIMUM INPUT LEVEL, TUBE DI	+18 dBu unpadded (+25 dBu with pad = 14 Volts RMS or 39 Volts Peak to Peak)
MAXIMUM INPUT LEVEL, FET DI	+18 dBu unpadded (+26 dBu with pad = 15.5 Volts RMS or 44 Volts Peak to Peak)
MAXIMUM OUTPUT LEVEL, ACTIVE BALANCED	+32 dBu
MAXIMUM OUTPUT LEVEL, ACTIVE UNBALANCED	+26 dBu
MAXIMUM OUTPUT LEVEL, DIT-01 TRANSFORMER	Nominal Mic Level
PHANTOM INPUT IMPEDANCE @ 20 Hz	6,700 Ohms
PHANTOM INPUT IMPEDANCE @ 20 kHz	6,800 Ohms
LINE INPUT IMPEDANCE, NOMINAL	6,900 Ohms
DI INPUT IMPEDANCE, NOMINAL	Switch Selectable @ 470K, 2M, and 10M
OUTPUT IMPEDANCE, ACTIVE BALANCED	24.3 ohms (x2)
OUTPUT IMPEDANCE, ACTIVE UNBALANCED	49.9 ohms
OUTPUT IMPEDANCE, DIT-01 TRANSFORMER	150 ohms
PHANTOM POWERING	+48 VDC, +/- 2 VDC
EQUALIZER MAXIMUM BOOST & CUT	+/- 15 dB (21 Step Detent)
EQUALIZER "Q" ADJUSTMENT RANGE	Q = 0.4 to 4.0, sweepable
EQUALIZER LF SWEEP FREQUENCIES	20 Hz to 220 Hz ~or~ 200 Hz to 2.2 kHz (Switch Selectable)
EQUALIZER HF SWEEP FREQUENCIES	250 Hz to 2.5 kHz ~or~ 2.5 kHz to 25 kHz (Switch Selectable)
BYPASS SELECTION SWITCH FOR EACH E.Q. BAND?	YES
PARAMETRIC E.Q. IN / OUT SWITCH?	YES
POWER REQUIREMENTS	100 to 240 VAC, User Selectable (50-60 Hz), 40W nominal
DIMENSIONS	8.5" W x 13" D x 3.5" H (21.6 cm W x 33 cm D x 8.9 cm H)
WEIGHT	15 Pounds (6.8 kg)