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musical instrument details
Forssell SMP-2A, 2 channel Microphone Preamp SN: 356
Estimated price for orientation: 1 599 $
Category: Preamps and Channel Strips
Class:
Description Condition: Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab ... Read moreabout the condition Brand: Forssell Model: SMP-2A Number of Channels: 2 Features: Phantom Power, Phase Reverse, Rack-Mountable, Solid State Type: Microphone Preamp Country/Region of Manufacture: United States
This wonderful, musical sounding preamp features a separate input intended for dynamic and ribbon microphones that completely bypasses the phantom power circuit, protecting your delicate ribbon mics from any possibility of accidental damage from phantom power. Unit functions perfectly in all ways and is in excellent condition. It will be well-packed and shipped via UPS, insured for the purchase price, with signature required. Will be shipped to the lower 48 United States only. PayPal is the required form of payment. The Forssell Technologies Inc SMP-2A is a 2 channel, transformerless, Class A discrete JFET microphone preamplifier housed in a single space rack chassis. Each channel on the SMP-2A has front panel mounted controls for gain, output muting, polarity reverse, and phantom power on/off. The mute, polarity, and phantom power switches each have LED indicators which illuminate when the switch is pressed in to indicate that the switch is on. The gain control is variable from minimum to maximum gain in 24 stepped positions. Bicolor LED level indicators are also present for each channel. These LED indicators show green with the output signal level is above –5 dBu, and red when the signal level reaches +24 dBu, which is 2-3 dB prior to clipping. A power on/off switch and LED are also located on the front panel. The rear panel contains the two input and one output XLR connectors per channel. All XLR connectors are wired Pin #2 hot. There is an input XLR for phantom powered mics (labeled P48), and one for non-phantom powered mics (DC) such as ribbon, dynamic, or externally powered condenser mics. There is also an IEC AC power connector and fuse holder on the back panel. The fuse holder is integrated into the IEC power connector and uses 5x25mm slow blow fuses. There is a spare fuse located within the fuse holder. The fuse type is 250 ma time-delay or time-lag fuse. If your preamp is wired for 230 VAC, then please use a 100 ma time-delay fuse. SpecificationsMinimum Gain = +6 dB
Maximum Gain = +68 dB or +74 dB (optional)
Input Impedance = 13k ohms EIN (Max gain) = better than –128 dBu (22 Hz to 22 KHz, unweighted), typically –130 dBu
CMRR (measured at +45 dB gain) = better than 90 dB
Frequency Response = 5 Hz to 100 Khz +0, -0.5 dB
THD +N = better than .005%
Maximum Output Level >= +27 dBu
Recommended Load Impedance >= 600 ohms
Preamp Output Impedance = 10 ohms
Power consumption = appox 13 watts
Description
| Condition: | Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab ... Read moreabout the condition | Brand: | Forssell |
| Model: | SMP-2A | Number of Channels: | 2 |
| Features: | Phantom Power, Phase Reverse, Rack-Mountable, Solid State | Type: | Microphone Preamp |
| Country/Region of Manufacture: | United States |
This wonderful, musical sounding preamp features a separate input intended for dynamic and ribbon microphones that completely bypasses the phantom power circuit, protecting your delicate ribbon mics from any possibility of accidental damage from phantom power. Unit functions perfectly in all ways and is in excellent condition. It will be well-packed and shipped via UPS, insured for the purchase price, with signature required. Will be shipped to the lower 48 United States only. PayPal is the required form of payment. The Forssell Technologies Inc SMP-2A is a 2 channel, transformerless, Class A discrete JFET microphone preamplifier housed in a single space rack chassis. Each channel on the SMP-2A has front panel mounted controls for gain, output muting, polarity reverse, and phantom power on/off. The mute, polarity, and phantom power switches each have LED indicators which illuminate when the switch is pressed in to indicate that the switch is on. The gain control is variable from minimum to maximum gain in 24 stepped positions. Bicolor LED level indicators are also present for each channel. These LED indicators show green with the output signal level is above –5 dBu, and red when the signal level reaches +24 dBu, which is 2-3 dB prior to clipping. A power on/off switch and LED are also located on the front panel. The rear panel contains the two input and one output XLR connectors per channel. All XLR connectors are wired Pin #2 hot. There is an input XLR for phantom powered mics (labeled P48), and one for non-phantom powered mics (DC) such as ribbon, dynamic, or externally powered condenser mics. There is also an IEC AC power connector and fuse holder on the back panel. The fuse holder is integrated into the IEC power connector and uses 5x25mm slow blow fuses. There is a spare fuse located within the fuse holder. The fuse type is 250 ma time-delay or time-lag fuse. If your preamp is wired for 230 VAC, then please use a 100 ma time-delay fuse. SpecificationsMinimum Gain = +6 dB
Maximum Gain = +68 dB or +74 dB (optional)
Input Impedance = 13k ohms EIN (Max gain) = better than –128 dBu (22 Hz to 22 KHz, unweighted), typically –130 dBu
CMRR (measured at +45 dB gain) = better than 90 dB
Frequency Response = 5 Hz to 100 Khz +0, -0.5 dB
THD +N = better than .005%
Maximum Output Level >= +27 dBu
Recommended Load Impedance >= 600 ohms
Preamp Output Impedance = 10 ohms
Power consumption = appox 13 watts
Maximum Gain = +68 dB or +74 dB (optional)
Input Impedance = 13k ohms EIN (Max gain) = better than –128 dBu (22 Hz to 22 KHz, unweighted), typically –130 dBu
CMRR (measured at +45 dB gain) = better than 90 dB
Frequency Response = 5 Hz to 100 Khz +0, -0.5 dB
THD +N = better than .005%
Maximum Output Level >= +27 dBu
Recommended Load Impedance >= 600 ohms
Preamp Output Impedance = 10 ohms
Power consumption = appox 13 watts