Traynor IronHorse DH40H Guide De Démarrage Rapide page 5

Controls
1. Inputs
The IronHorse DH40H is equipped with two inputs. Input I is the standard high sensitivity
guitar input. Input II is padded down by -6dB. Use this jack if you are using active pickups or
want more clean headroom from the amp.
2. Gain
This control adjusts the gain of the amp's first tube stage. Along with the CLEAN/PURE/SOLO
switch, the Gain control determines how much clipping you'll get at low volumes. You'll notice a
greater difference between the CLEAN, PURE and SOLO modes when the gain is set beyond its
mid position.
3. Bass and Treble
Use these controls to shape the overall tone of the amp. The mid point is a good starting position.
4. CLEAN/PURE/SOLO Switch
CLEAN –
In this position, you'll find you get the most headroom from the amp and the
tone controls work as expected.
PURE –
A PURE setting – what's this you ask? This position bypasses the tonestack,
meaning you can spin those tone knobs all you want, but they won't do much! What you
get is the natural EQ of the amp and a hotter signal going to the power amp. Crank the
Gain and Master to 10 and listen to the output tubes saturate!
SOLO –
The SOLO mode is similar to the PURE setting but with more gain. As with the
PURE mode, the tonestack is disengaged, allowing the natural EQ of the amp to come out.
5. Master
The Master control sets the overall output volume of the DH40H. Use it to control your volume
but also use it in conjunction with the Gain knob to vary the amp's clipping characteristic. High
Gain + Low Master = Preamp Clipping. Low Gain + High Master = Power Amp Clipping.
6. Standby / Bias Switch
Another unique feature of the IronHorse DH40H is the ability to choose between two bias
modes for the output tubes. In the mid position, your amp will be in standby as indicated by
the amber pilot light. Switch to the down position to use the Cathode Bias mode. You'll see the
pilot light go green. Flip to the up position to get the Fixed Bias mode. The pilot light turns red.
The main differences you'll hear are more compression and less output at higher levels from
the Cathode Bias mode. You'll also notice a difference in attack and distortion characteristic of
the output tubes between the two modes.
Tips on Tone
· TIP #1: Maximum headroom – if you're looking to get a great clean tone, go to Fixed Bias
mode, switch to CLEAN mode and use Input II. Lower the Gain all the way and turn up
the Master to full. Slowly bring up the Gain control until you get the volume you need.
· TIP #2: Want to ride two horses? If you have two IronHorses, each with their own
cabinets, you can setup a master/slave configuration. Take a stanard ¼-inch guitar
cable and run it from the Preamp Out of the first amp and connect it to the Power
Amp In of the second amp. Except for the Master knob, all the controls on the second
amp are now disabled. You'll get the same signal going to the both power amps
7. Power Switch
You know what the Power switch does, but here's a tip: when you turn your amp off, leave
the Bias Mode switch in either Fixed Bias or Cathode Bias mode. This will discharge the
capacitors in your amp's power supply faster when you're not using it.
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