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Tavish Design Minotaur Quick-start Manual And Owner's Manual

Manual is about: Direct-Coupled Hybrid Vacuum Tube Amplifier

Summary of Minotaur

  • Page 1

    T avish d esign , llc made in u.S.A. Minotaur direct-coupled hybrid vacuum tube amplifier quick-start guide and owner’s manual.

  • Page 2: Able Of

    1 t able of c ontents 1.Quick start 2 2.Safety considerations 4 3.Description and specifications 5 4.Operating details 7 4.1. High-bias mode 7 4.2. Automatic power off 7 4.3. Ventilation and cabinet temperature 8 4.4. System status indication (fault modes) 9 4.5. Wireless remote control 9 4.6. Toroi...

  • Page 3: 1  Q

    2 1 q uick s tart thanks for buying the minotaur! For safety, best results, and greatest enjoyment of your new amplifier, please take time to read these quick start instructions and the safety considerations in section 2. You can skip sections 3-7 of the manual until you need them. Feel free to cont...

  • Page 4

    3 6. Turn the volume control to minimum (counter-clockwise), and turn on the power switch. The red “sleep” led will glow. Wait at least 3 seconds and push the on-off button. The amplifier begins a 60 second warm-up sequence. At any time after the on-off button is pushed, the desired input 1-5 can se...

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    4 2 s afety 1. This amplifier uses high voltages internally which could cause injury or death. Lethal voltages can remain in the electronics after the unit is unplugged. To avoid electric shock, do not remove the bottom cover (it is secured in place with tamper-resistant screws). Refer servicing to ...

  • Page 6: 3  D

    5 3 d escription and s pecifications the minotaur is an amplifier with a direct-coupled vacuum-tube signal path, direct-coupled to a transistor output stage. The design uses 7 vacuum tubes to handle the input, voltage gain, and driver stages of the amplifier. The high-bias class-ab (linear, non-swit...

  • Page 7

    6 specifications parameter specification rated power output 140 w per channel continuous, both channels driven into 8Ω power output vs. Load impedance 190 w per channel into 5Ω 220 w per channel into 4Ω 240 w per channel into 3Ω output noise >108 db below rated power input sensitivity and gain +0 db...

  • Page 8: 4  O

    7 4 o perating d etails 4.1h igh -b ias m ode the high-bias class-ab output stage in the minotaur can operate in two modes, “normal” and “high- bias”. By default, the amplifier operates in normal mode, operating in class-a up to about 1 w per channel into an 8-Ω load. In high-bias mode, the output s...

  • Page 9

    8 to turn it back on, press and hold any of the source buttons except “5” (that is, mute or 1-4) while pressing the on-off button. The red on-off switch will flash four times quickly to indicate that automatic-power-off has been enabled. The automatic-power-off setting cannot be disabled in high-bia...

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    9 4.4s ystem s tatus i ndication (f ault m odes ) the system has a number of status indicators and fault modes which are indicated with the red led in the on-off button. You will probably never need to know about these, but they are summarized here in case you do. Most problems can be resolved by re...

  • Page 11

    10 if the amplifier is placed in a metal equipment rack that blocks the radio signal from the remote control, the remote may have poor range or not work at all. In that case, an external antenna which can be placed outside the metal equipment rack is available from tavish design. 4.6t oroidal t rans...

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    11 5 m aintenance and v acuum t ube r eplacement 5.1m aintenance the only regular maintenance required is to keep the amplifier clean. If it is in a location where dust can settle on it, then dust will eventually accumulate inside the top cover due to the ventilation slots. To clean it, unplug the l...

  • Page 13

    12 a broken or improperly seated vacuum tube can present an electrical shock hazard, which can result in serious injury or death! The following instructions in this section for tube replacement or substitution are for experienced electronics technicians only. To replace a tube, unplug the line cord,...

  • Page 14: 6  W

    13 6 w arranty and s ervice 6.1w arranty with the exception of tubes, tavish design, llc (hereinafter “tavish design”) warrants to the consumer this product to be free of defects in materials or workmanship for a period of six (6) years from the date of purchase (6 months on tubes). If you discover ...

  • Page 15: 7  C

    14 6.2s ervice please contact tavish design for service (in or out of warranty) if you believe your amplifier needs repair. Most technical issues can be resolved by email or phone. If your unit does require repair, we’ll issue a return merchandise authorization (rma) number, along with packing and s...