Budget Electronics (comes with captive wallwart power supply*)
(Add $12 per jack for premium teflon jacks)

    DB-8        Phono Preamplifier, 37 dB gain, RIAA within .04 dB, .002% distortion, output 150 ohms 300
This comes with a 12v walwart power supply. Optionally it can be modified to run on the DB preamp for $40.
      
                     Photo   Specs    Option:   Teflon insulated silver-plated copper internal wiring $15,    +6dB gain $10, additional set of input jacks for parallel loading                      without using a Y adapter 35.
    DB-8HG      Moving Coil RIAA Phono Preamplifier, 52 dB gain      350
        This comes with a 12v walwart power supply. Optionally it can be modified to run on the DB preamp for $40.

                      Specs   Photo    Option: Teflon gold jacks $48  Teflon insulated silver-plated copper internal wiring $15,
    DB-9        Headphone Amp with Alps volume control             350
                      Photo   Specs    Review pg 1    Review pg 2
    DB-10       Microphone Preamp                     350
    DB-11       Moving Coil Headamp, 22 dB gain, feeds a phono input   350
    DB-12       Active Subsonic Filter 18 dB per octave, -3 dB @ 25 Hz, -18 dB @ 12 Hz, flat response in pass band, +-.05 dB 50 Hz to 20 kHz, fast cutoff below
             (18 dB Butterworth).
              Intended to be placed between preamp and amp or  in  tape loop            390     Specs     Photo
    DB-13       Line Amp 350   
    DB-14       Variable Low Pass                     300

     * May be ordered with the High Voltage High Current Regulated Power Supply