The Double Triode Limiter (DTL) is more than classic tube triode microphone preamp. The old-fashioned design was upgraded with a musical opto-limiter. The limiter is based on circuit used in 60’s and 70’s.
The DTL is a tube microphone preamp adapted to work with any type of microphone. A wide range of amplification makes it possible to record drums as well as the quietest ribbon microphone. DTL does a great job of recording tracks from external devices such as synthesizers or drums machines (like Akai MPC). Great results are achieved with reamping tracks from DAWs. The DTL adds a nice tube saturation to the sound. The high impendance inputs (HiZ) allow for connecting an electric or bass guitar directly into the grid of the first step of tube amplification (Typical HiZ solution).
Additional device capabilities are activated by the Limiter section. This can be used to limit peak levels of the input signal. The component in charge of compression is an IGS Audio custom designed photocell. When the limiter is working it is indicated by a LED labeled “Limit” on the front panel. The limiter controls the louder parts of the signal and prevents from the digital clipping at the inputs of you ADC. Another trick could be using the DTL as a drum compressor or mix buss compressor. It can improve the overall dynamics of the mix and give it a brighter sound. This is a very versatile device for audio processing.
Full of Features
The audio path of the preamp is a two stage tube amplifier with individual drive on both steps. The saturation at the first step depends on the input signal level (with possibility to use Pad -20dB). The saturation of the second step is dependent on the Output regulator. Inputs and outputs are balanced with Sowter (UK) and Edcor (USA) transformers. The anode voltage is set close to 300V DC. For each of the channels Output and Limiter threshold can be regulated smoothly. The featured switches are: GAIN, +48V, Mic/HiZ, Phase, Pad -20dB. Hi-Z inputs are located on the front panel. The meters show output signal level.
IGS Audio Double Triode Limiter Specifications
- Optical Compressor: Yes
- Input Pad: Yes, -20 dB
- Input Impedance (balanced): 300 ohm (1M ohm for Hi-Z instrument input)
- Phantom Power: Yes
- Output Impedance (balanced): 600 ohm
- Audio transformers: Yes
- Operating Level: +4 dBu
- Max output level: +22 dBu
- Max. gain: 60 dB
- Max Gain Reduction: 18 dB
- Fequency response: 20Hz to 20kHz; +/- 0.3dB
- THD+N : <0.1%
- Voltage: 115/230V AC, 50 - 60Hz
- Power consumption: 40W
- Power supply: Internal
Receive FREE Shipping to ANYWHERE in the Continental United States on almost every item or order!
- Most items qualify for orders over $99.99
- FREE Economy shipping to the lower 48 states
- In order to protect your shipment from theft, we require a direct signature when delivered on most orders over $99
- International shipping is extra, contact us for an international shipping quote
- Free Shipping does not apply to special orders and oversized/overweight products
- Any expedited deliveries are available at an extra cost
Digital products are delivered via email, and nothing is physically shipped to you. Most products are delivered instantly, and will be marked as "eDelivery or Download" in these cases. Due to the irrevocable nature of digital goods, we are unable to offer returns or refunds for any order.
PLEASE NOTE: This product is delivered via secure, electronic delivery. You will receive the full product license and instructions direct to your email. Enjoy a safe and fast way to get the latest version and full support direct from the manufacturer.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.