Rolls VP29 User Manual

Vp29 phono preamp, Vp29, Phono preamp

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background image

02/09

VP29

Phono Preamp

-

Converts RIAA Phono signals to Line Level

-

Works well with magnetic phono pickups

-

Stereo RCA and 1/8" outputs

Phono players require special equalization because
of the frequency response of recording on vinyl.
The VP29 equalizes and amplifies the phono signal
to a clean, and full line level for professional ampli-
fication.

SPECIFICATIONS
I/ O Connectors:

RCA, 1/8" TRS Stereo

Input Sensitivity:

35 dBV gain @

1kHz, 47k Ohms Input Z

Input Capacitance:

5pf + cable capacitance

Input Impedance:

50k Ohms

Output Impedance:

1 K Ohms

Max Output Level:

>10dB @ 1kHz at at 1% dist.

Frequency Response:

+ / - 1.5dB 20 Hz - 20 kHz

(Conforms to RIAA
Equalization Curve)

THD

.02% @ 1 kHz

S/N Ratio:

>80 dB unweighted

PWR:

12 - 18 VDC

Size:

3.25 x 2 x 1.5

Weight:

1 lb

Thank you for your purchase of the Rolls VP29 Phono Preamp.
The VP29 is designed to amplify an RIAA equalized phono signal
to a Hi-Fi level signal, and it works well with magnetic pickups.

INSPECTION
1. Unpack and Inspect the VP29 package
Your VP29 was carefully packed at the factory in a protective
carton. Nonetheless, be sure to examine the unit and the carton for
any signs of damage that may have occurred during shipping. If
obvious physical damage is noticed, contact the carrier immedi-
ately to make a damage claim. We suggest saving the shipping
carton and packing materials for safely transporting the unit in the
future.

WARRANTY:
For complete warranty information please visit our website at
www.rolls.com , and click on the Register Your Warranty Here
button.

DESCRIPTION
PWR INPUT: 12 - 16 Volts DC, tip negative jack.
GROUND CONNECTOR: Connects to the Ground of the phono
player
INPUT: Stereo RCA jacks for connection to the phono player
OUTPUT: Stereo RCA jacks for connection to a stereo system or
amplifier.
OUTPUT: 1/8" Tip-Ring-Sleeve jack for connection to a stereo
amplifier.

INPUT

OUTPUT

GROUND

PWR INPUT

OPERATION

Shown below is an example of how to connect your VP29.

To stereo
amplifier and
speakers.

Pwr
Supply

VP29 PHONO PREAMP

VP29

PHONO PREAMP

VP29

PHONO PREAMP

VP29

PHONO PREAMP

- Home

- Studio

- Broadcast

... anywhere you need clean RIAA EQ to

professional line level conversion.

1

ROLLS CORPORATION

5968 S 350 W

Murray, Utah

84107

1

VP29.SCH

1 January 2009

Title

Size:

Document Number:

Date:

Rev:

Sheet

of

VINYL PREAMP VP29

Ba

VB+

VB+

V+

VB+

V+

LEFT

RIGHT

2
3
1

J2

JAPDC

D1

1N4001

C5

473

D2
LDRR

R1

100

C1
1K UF

R2

22K

R3

22K

C2
47U

2

J1B

RCAX4

C9

.0033

C10

820PF

R9

100K

5

J1D

RCAX4

4

6

J1C

RCAX4

R8

100K

C7

.0033

J4

PHONE 3.5mm

1

3

J1A

RCAX4

C3

10U

R6

2K

R5

47K

C4
1U

C6

1U

R4
47K

C11

10U

R11

2K

R10

1M

2

3

1

4

U1A

4560

6

5

7

8

U1B

4560

R13

1K

R12

1K

C16

503

C8

820PF

R7

1M

C13

47UF

C12

47UF

R14

4.7K

A

SCHEMATIC

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