Rolls ADB2 Active Direct Box, Phantom Powered Only

The ADB2 is powered by standard microphone phantom power from 9-48 VDC and uses a discrete low-noise differential driver to make it very quiet. The ADB2 has two 1/4 inch Input jacks wired in parallel, a male XLR Output and a 3 position attenuator and ground lift switches.

ADB2 Specifications:

Input -10 to +40 dB unbal

Output -10 to +2 dB bal XLR pin 2 +

Bandwidth 1 -50K Hz

S/N 100 Db

Jacks (2) 1/4 inch phone, XLR Male

Attenuator 0 dB, 20 dB, 40 dB

Power9 -48 V Phantom

Size 2 inches X 3.5 inches X 1.23 inches

UPC 675889000207

Rolls CL151 GLC Gate Limiter Compressor / Mic Preamp

The CL151 GLC is a unique dynamics processor with the added benefit of a microphone preamp. The unit features smooth, soft-knee compression and limiting, and noise gating for quiet operation. Gating is indicated by a front panel LED, and gain reduction is indicated via a 5-LED ladder.

FEATURES

o Mic preamp with 12 volts of phantom power available

o Soft-knee compression/limiting

o Noise gating

o XLR mic and 1/4 inch line input

o Side Chain for detector circuit access

o 1/4 inch balanced output

UPC 675889015102

Rolls DB25b Direct Box, With Pad & Ground Lift

The DB25b is a transformer-balanced, passive direct box. The Attenuator cuts the signal from speaker outputs, or hot line outputs so the audio mixer input does not distort. The 1/4 inch Input jacks are paralelled so either one may be used. The Ground Lift may reduce hum.

DB25b Specifications:

Frequency responce 50 – 15K Hz + -3 dB

Output imp. 600 ohms

Imput Impedance 50K ohms

Max output level 10 dBm

Polarity + Pin 2 (XLR)

UPC 675889002508

HE18 Buzz Off The HE18 is a two channel audio hum and buzz remover. Everyone knows how annoying it is to have 60 cycle hum in your sound. Now you can eliminate virtually all ground hum and buzz by simply inserting the HE18 into the audio path. Plus, the unit will convert an unbalanced signal into a balanced signal, and vice-versa. This greatly improves overall noise performance. FEATURES Eliminates ground loop hum and buzz. Leaves signal grounds connected. Passive, the unit requires no power. Converts balanced lines to unbalanced lines and vice-versa. Adjusts signal voltages to match difference in ground potential.

SPECIFICATIONS

Frequency response: 20Hz to 70 kHz /- .5dB

Distortion: < 0.005 percent THD @ 1 khz

Crosstalk: > -97 dB

Max source impedance: 1 K Ohm Min load impedance: 10 K Ohm

UPC 675889001808

Rolls MX41b 4-Channel Stereo Or Mono Passive Mixer

The MX41b is a stereo four channel passive mixer for expanding a console mixer, mixing instruments, CD players, cassette players, computers etc. It requires no batteries or other power source. The unit may also be used as a 1 In 4 Out stereo splitter box when all controls are set to maximum.

MX41b Specifications:

• 8 Stereo Inputs: 4: 1/4″ and 4: 1/8″
• Stereo 1/4″ and 1/8″ Outputs.
• Input Impedance: 10K to 47K Ohms
• Output Impedance: 2.5K to 10K Ohms
• Gain: -12 dB MAX
• Dimensions: 3.6″ x 2.7″ x 1.42″ (W x H x D)
• Weight: 1 lb.
• Four Stereo 1/4″ and 1/8″ Inputs.
• Stereo 1/4″ and 1/8″ Outputs.
• 100K Ohm Potentiometers.

UPC 675889004113

Rolls R103 Single Space Security Cover

• Save your settings from tampering
• Helps prevent spillage from getting into sensitive equipment

UPC 675889010305

Rolls RA200 Stereo 100 Watts Per Channel Power Amp

The RA200 features two 100 watt RMS – 4 ohm outputs, a bridging switch, MOSFET drivers in a voltage and current gain circuit, one second power-up delay, and LED power output meters. The unit is housed in a painted steel chassis and includes a special high performance transformer, and a fused power line. The MOSFET output stage is fault protected which allows the RA200 to forgive momentary output shorts, and has over-temperature protection.

CAUTION: The RA200 is convection cooled. Adequate ventilation room for the heat sink fins on the rear panel must be provided.

FEATURES:

o MOSFET drivers in a voltage and current gain circuit

o 1 second turn-on delay

o LED power output meters

o Fault protected outputs

SPECIFICATIONS:

Power Output, Stereo:

100 Watts RMS/ch. 4 ohms

70 Watts RMS/ch. 8 ohms

Bridged – 200 Watts RMS 8 ohms

Input Connectors:

1/4 inch TRS balanced and RCA Output Connectors: 1/4 inch and 5-way binding posts

Sensitivity: <1 VRMS for full output

THD: <.08% (1kHz @ 1 Watt)

S/N Ratio: 106 dBU

Power Bandwidth: DC – 30kHz +/- 1dB

Damping Factor: > 150

Slew Rate: 100 Volts/microSecond

Phase Shift: <10 Deg., 20Hz – 20kHz

Input Impedance: 10 K ohms

Balanced Power: 120 VAC 60Hz 2.5A 230 VAC 50Hz

Size: 19 inches x 3.5 inches x 7.5 inches (48 x 9 x 19 cm)

Weight: 12 lbs (5.5 kg)

UPC 675889020007

Six Channels of clean, quiet headphone/earphone amplification.
Individual Direct Inputs to mix separate stereo signal with Main Input signals.
1/4″ and 3.5mm Headphone/Earphone Outputs.
LED Clip indication.
Stereo/Mono operation.

Specifications
Input Impedance: 10K Ohms unbalanced
Max Input Level: 18 dBV
Input Connectors: 1/4″ TRS stereo, R & L bal. / unbal. 1/4″, RCA, R & L balanced XLR, 6: 1/4″ TRS Direct Input jacks
Output Connectors: 12: 1/4″ TRS Stereo jacks, 6: 1/8″ (3.5 mm) TRS Stereo jacks
Max Gain: 20 dB/Channel
Output Power: 972 mW/side, 1944 mW/Channel ( @ 32 Ohms )
Frequency Response: DC – 30 kHz
S/N Ratio: 90 dB
THD: <.008%
IMD: <.008%
Phase Shift (In to Out): 0 deg.
Slew Rate: 25 V per microsecond Second
Crosstalk: – 65 dB
Power: 12 VAC (Rolls Model PS12)
Size: 19″ x 1.75″ x 6.5″ (48cm x 4.5cm x 17cm)
Weight: 7 lbs (3KG)

The ROLLS REQ313 graphic equalizer is intended for room equalizing or sound shaping and the approximate frequency response curve can be seen graphically by the settings of the frequency controls. Recording and broadcasting studios, sound contractors and musicians will appreciate the low noise, straightforward design, and versatile signal control of the REQ series. The equalization filters in the REQ313 are constant bandwidth (constant Q). The bandwidth of each individual filter is narrow enough to prevent unwarranted interaction between filters, yet wide enough to produce exactly the type of correction curve demanded by even the most unusual acoustic surroundings. FEATURES: 31 Bands of constant Q equalization. XLR and 1/4 inch input and output. Low cut and High cut filters. Passive bypass. 1 Year Warranty.

SPECIFICATIONS

Equalizer Bands: 31

Frequency Response: 20Hz – 20kHz

Accuracy: 5 percent Center

Frequency Range: 6dB or 12 dB (Switch selectable)

Inputs Type: Active Balanced/Unbalanced

Connectors: XLR, 1/4” TRS

Impedance: 12k Ohms Maximum Level 22 dB (Balanced), 15dB (Unbalanced)

Outputs Type: Electronically Balanced

Connectors: XLR, 1/4 inch TRS

Impedance: 600 Ohms

Maximum Level: 22 dB (Balanced), 15dB (Unbalanced)

RFI Filters: Yes Passive

Bypass Switches: Yes

Overload LED Threshold: 3dB below clipping

Low Cut Filter: 10 – 250Hz, 12dB/Oct.

Frequency Response: 20Hz – 20kHz, 0.5dB

THD Noise: 0.01% (20Hz – 40kHz)

S/N Ratio: 110dB below Max level (A weighted) Equivalent

Input Noise: -95dB (20kHz noise bandwidth)

Dimensions: 3.5 inches H x 19 inches W x 8.5 inches D

UPC 675889031300

A parametric equalizer, unlike conventional graphic equalizers, provides for the precise control over the frequency selection, band width and levels. The RPQ160 is a powerful tool when used for room equalization, sound reinforcement, or home or studio recording applications.

FEATURES:
• Four bands of parametric equalization
• +/- 15 dB of Boost/Cut for each frequency
• RCA, 1/4″ and XLR inputs and outputs
• Adjustable high and low shelving filters
• “T” Filters, which avoid the complexity and distortion of state-variable filters