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The concept behind the SFP-30 is simple: Take the exact audio and power circuitry from the SFP-60, put a single channel into a tabletop format, and make it less than half the price of the SFP-60. Done. Everything about the SFP-30 signal path is identical to the SFP-60, except that the SFP-30 lacks the DI input. Other than that, you can now get the finest, most flexible tube preamp available -- with the legendary variable second harmonics from the SFP-60 -- in a compact package costing only $1299. A better sonic toolkit for recording simply isn't available at this price. Anywhere.
| Product Name | Useful Arts SFP-30 Microphone Preamplifier |
|---|---|
| Brand | 2058 |
| Condition | New |
| MPN | UAA-SFP-30 |
| Shipping Option | Free Shipping to the Continental U.S. |
- Absolutely no signal passes through these switches, because we hate the noise that develops over time in even the most expensive switches. Instead, the front panel switches control sealed, gold-plated relays to ensure years of operation without pops and clicks.
- The input and output levels of the triode stages of the SFP-30 are separately controllable by detented attenuators, and combined with the color control, the SFP-30 provides just over 55dB of useable gain.
- The rear panel is simple: it offers a voltage selector for 115/230 volt operation in the IEC fuse block. The gold-plated XLR connectors are on the front panel.
- The only active devices in the signal path are the three tube gain stages, consisting of 1 EF806 and 1 ECC82 per channel. We use new-manufacture JJ tubes for long life and easy replacement.
- Each channel features an output level VU meter, which is op-amp buffered to ensure that the signal is not loaded by the meter.
- The audio power supply features a toroidal dual-primary transformer and linear regulation for lowest noise.
Useful Arts SFP-30 Microphone Preamplifier
The concept behind the SFP-30 is simple: Take the exact audio and power circuitry from the SFP-60, put a single channel into a tabletop format, and make it less than half the price of the SFP-60. Done. Everything about the SFP-30 signal path is identical to the SFP-60, except that the SFP-30 lacks the DI input. Other than that, you can now get the finest, most flexible tube preamp available -- with the legendary variable second harmonics from the SFP-60 -- in a compact package costing only $1299. A better sonic toolkit for recording simply isn't available at this price. Anywhere.
| Product Name | Useful Arts SFP-30 Microphone Preamplifier |
|---|---|
| Brand | 2058 |
| Condition | New |
| MPN | UAA-SFP-30 |
| Shipping Option | Free Shipping to the Continental U.S. |
- Absolutely no signal passes through these switches, because we hate the noise that develops over time in even the most expensive switches. Instead, the front panel switches control sealed, gold-plated relays to ensure years of operation without pops and clicks.
- The input and output levels of the triode stages of the SFP-30 are separately controllable by detented attenuators, and combined with the color control, the SFP-30 provides just over 55dB of useable gain.
- The rear panel is simple: it offers a voltage selector for 115/230 volt operation in the IEC fuse block. The gold-plated XLR connectors are on the front panel.
- The only active devices in the signal path are the three tube gain stages, consisting of 1 EF806 and 1 ECC82 per channel. We use new-manufacture JJ tubes for long life and easy replacement.
- Each channel features an output level VU meter, which is op-amp buffered to ensure that the signal is not loaded by the meter.
- The audio power supply features a toroidal dual-primary transformer and linear regulation for lowest noise.
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