Atma-Sphere MP-1 MK 3.2 Tube Pre-Amp Line Stage with upgrades

UniQue Home Audio LLC
727-487-1869

We are a dealer for Atma-Sphere and have a MP-1 Pre-Amp available. We took this unit in on trade for a customer that was downsizing his system.  Unit was sent to Atma-Sphere for full checkup and just returned.  This unit is version MK 3.2 and can be sent to Atma-Sphere to get upgraded to MK 3.3 which re-activates the warranty.  This is line stage phono stage can also be added. Feel free to call to discuss.

Optional upgrades performed:

V-cap
Remote
Dampening Package
Dual Outputs
Caddocks

FEATURES

- Balanced Differential Design®
- Supports the Balanced Line standard (AES48)
- Robust output that can drive 32 ohm headphones
- XLR connectors for phono and aux (paralleled RCA inputs optional)
- Dual XLR outputs (RCA outputs optional)
- Patented direct-coupled Circlotronic® output
- Fully regulated supplies
- Zero feedback design
- Dual-mono construction
- Differential passive phono equalization

- Precision 24-position stepped volume control built from a Shallco® custom switch
- Two tape monitors (tape functions use RCA's)
- Precision components used throughout
- Total system phase switch
- Teflon® custom coupling caps
- Low-noise "star" grounding
- Power supply isolated in seperate chassis
- Headphone compatible with a simple connector

Line stage frequency response
0.1 Hz - 400 KHz, +0 dB, -3dB ( -0.5 dB @ 250 KHz ) 

Line stage gain
12 dB 

Line stage input impedance
100 K Ω single-ended / 200 K Ω balanced 

Line stage output
32 V into 600 Ω 

Output impedance
30 Ω 

Power Supply storage
170 Joules 

Tube complement
6 x 6SN7 (line section)

Dimensions
13" deep x 17" wide x 5.5" tall (33 x 43 x 14 cm)
(per chassis)

Faceplate dimensions
19" wide x 6" tall (48 x 15 cm) 

Weight
( per chassis ) 42 lbs. (19 Kg)