日本語 / English

Features

• 4ch Mic Preamp
• Ultra transparent sound
• Gain +66dB
• 3dB step gain selector (No pot)
• Gain Attenuator for fine tuning(-1dB/-2dB)
• 48V phantom power
• Low Cut filter (40Hz、-6dB/oct)
• Optional Digital Output card
• -20dB Pad
• Polarity Switch
• Hi-z Input impedance for Instrument
• Made in Japan

Teflon-coated single wire

Teflon-coated single wires are used instead of standard twisted wires. Teflon-coated wire can transmit signals faster than twisted wires. This is why you can obtain a faster response. Teflon-coating also protects against corrosion and keep its condition healthy for a long time.

Independent toroidal transformers

External power supply is equipped with high- quality transformers and Main, phantom, relays and LEDs and digital circuit, each has their own transformers and designed used with 100mA: 1000u. rectifier capaciters.

To keep signal uncolored

For extraordinary, transparent sound, the number of parts used in the preamp should be kept as small as possible. SP-MP4 uses less than 1/3 of components compared to standard preamps. SP-MP4 utilizes only finest components such as feedback resisters that are more expensive than standard tip resistors. We strictly pay a closest attention on every tiny detail to keep signal uncolored.

Digital output card (optional: price TBA)

Optional Digital output card is scheduled to be released. This card can handle digital audio outputs up to 192kHz of AES, S/PDIF and DSD. It has an internal clock and can be both a clock master or slave to the external clock master.


Spec

                             
Specification
Connectors4 XLR Mic Input with +48V Phantom
4 Line Output
DC Input
Option Slot (for AD Converter)
ControlsPhase Reverse On/Off
+48V On/Off
-20 dB Pad On/Off
Lo CUt On/Off (50Hz、-6dB/oct)
Gain(0dB ~ 66dB、3dB step)
Gain Attenuator(-1dB/-2dB)
External Power SupplyAC100-120V or 220V-240V factory Configured INPUT
One PSU supply up to 2 SP-MP4s.
sizeMain Unit:482.6 (w) x 44(h) x 260(+front knobs 15) (d) mm
PSU:230 (w) x 70 (h) x 231 (d) mm
IncludedDedicated power supply connection cable
               
Dimensions AC cable characteristic
Frequency Response@21dB Gain +21dBu Balanced Out 5~40kHz : < ± 0.03dB
@21dB Gain +8dBu UnBalanced Out 6~40kHz : < ± 0.03dB
THD+N@21dB Gain +21dBu Balanced Out 5~40kHz : < 0.0010%
@21dB Gain +8dBu UnBalanced Out 5~40kHz : < 0.0030%
Maximum I/O LevelBalanced : +24dBu
UnBalanced : +18dBu
Input Impedance4.4MR
150kR : When +48V ON

[Front Image]

[Rear Image]

SP-MP4

SP-MP4D