This is the Lundahl transformer version.
For over 20 years, Channel One has been a synonym for a high-quality and extremely musical recording and mixing channel strip.
In the newest Mk3 version, this classic has been thoroughly revised and, in addition to a higher internal audio voltage (now +/-18 V) for even better, more detailed sound, a further improved preamplifier section, an integrated Transient Designer, a Tube Saturation stage and a Mic A/B comparison option for two microphones and other great features that raise the modern recording and mixing studio to a new level of quality. With de-esser, compressor and equalizer, all the important tools of a real channel strip are still on board. Whether it’s a microphone, line, or instrument signal, the Channel One Mk3 makes any source sound like a professionally recorded signal.
The new design of the SPL Studio Series perfectly highlights the sonic qualities of this 3rd generation Channel One.
Specifications
Analog inputs & output; XLR & TRS Jack (balanced)
- Maximum input gain (Mic, +9,5dB – +68 dB) 13.5 dBu (33.5 dBu mit PAD-Schaltung)
- Maximum input gain (Line, -20 dB – +16 dB) 22.5 dBu (+42 dBu bei -20 dB)
- Maximum input gain (Instrument, -6 dB – +30dB) 15 dBu (+27 dBu bei -6dB )
- Input impedance (Mic/Line) 10 kΩ
- Input impedance (Instrument) 1.1 MΩ
- Output impedance 75 Ω
- Frequency range 10 Hz – 200 kHz
- Equivalent Input Noise (EIN) -126 dBu
- Noise (A-weighted, Mic Preamp, 150 Ω, 30 dB Gain) -95 dBu
- Noise (A-weighted, Mic Preamp, 150 Ω, 50 dB Gain) -79.5 dBu
- Noise (A-weighted, Mic Preamp, 150 Ω, 68 dB Gain) -61.7 dBu
- Noise (A-weighted, Line/Instr Preamp, 600 Ω, 5 dB Gain) -96.5 dBu
- Nosie (A-weighted, Line/Instr Preamp, 600 Ω, 20 dB Gain) -84.7 dBu
- Common mode rejection (1 kHz) Mic Input < 80 dB
- Gleichtaktunterdrückung (1 kHz) Line Input < 50 dB
- THD+N Ratio (1 kHz), Mic 30 dB Gain 0.0022 %
- THD+N Ratio (1 kHz), Mic 50 dB Gain 0.013 %
- THD+N Ratio (1 kHz), Mic 68 dB Gain (Max.) 0.048 %
- THD+N Ratio (1 kHz), Line 0 dB Gain 0.0022 %
- THD+N Ratio (1 kHz), Line 16 dB Gain 0.0017 %
- THD+N Ratio (1 kHz), Instrument 0 dB Gain 0.012 %
Internal Linear Power Supply with Shielded Toroidal Transformer
- Operating voltage for analog audio +/- 18 V
- Operating voltage for relays and LEDs +12 V
- Tubes anode voltage +250 V
- Tubes heating voltage +12.6 V
- Phantom power 48 V
Mains Power Supply
- Mains voltage (selectable) 230 V AC / 50; 115 V AC / 60 Hz
- Fuse for 230 V T 315 mA
- Fuse for 115 V T 630 mA
- Power consumption max. 22.3 VA
Dimensions & Weight
- W x H x D (width x height x depth) 482 x 88 x 210 mm
- 19 x 3.46 x 8.27 inch
- Unit weight 6 kg
- 13.22 lbs
- Shipping weight (incl. packaging) 7.6 kg
- 15.43 lbs
