| Content | Whether you’re tracking, mixing, or just listening to music, your headphone amplifier is as important to the final sound quality as your headphones – yet the world is full of headphone amps with compromised sonics, headroom, and power. To address these shortcomings, Rupert and his team at Rupert Neve Designs developed the RNHP.
Based on the headphone output circuit in the 5060 Centerpiece Desktop Mixer, the RNHP is a dedicated 24V reference-quality headphone amplifier with +4dBu balanced line, unbalanced RCA and 3.5mm (1/8”) inputs – each specifically calibrated for optimum level and impedance – and housed in a rugged, VESA-mountable steel chassis.
Dedicated vs Integrated Amplifiers
For much equipment, the headphone output is an afterthought. Most products with integrated headphone amps have large feature sets, small footprints, and relatively low price points. This leads to compromised power and audio quality of the headphone amplifier itself, which can lead to a number of issues in real world usage such as low headroom, unreliable performance, and a lack of focus.
The RNHP was made to accomplish one simple purpose: making any headphones sound their best. As a dedicated design, the RNHP is tailored to deliver extremely high quality, powerful amplification, with precise calibration for any source input. This exceptional level of quality can be the difference that inspires an artist to give their best performance, lets an engineer make better choices in mic and placement, gives a mix engineer reliable translation of EQ and dynamics adjustments, or lets a music listener appreciate the full depth and detail of a recording.
MAXIMUM INPUT LEVELS
- “A” XLR I/P: +22.8 dBu @ 1 kHz
- “B” RCA I/P: +14.7 dBu @ 1 kHz,
- “C” 3.5mm I/P: +3.3 dBu @ 1 kHz
OUTPUT POWER
- As measured with typical headphones, Z=44 Ohm: 3.617 VAC RMS @ 1 kHz = 300mW RMS.
- 16 Ohm typical Load: 1.933 VAC RMS @ 1 kHz = 230mW RMS
- 150 Ohm typical Load: 5.108 VAC RMS @ 1 kHz = 175mW RMS
OUTPUT IMPEDANCE
.08 Ohm @ 1 kHz, 16-150 Ohm load, 0 dBu input
FREQUENCY RESPONSE
+/- .2 dB from 10 Hz to 120 kHz
NOISE
- Measured with typical headphones, Z = 44 Ohm, BW 22 Hz - 22 kHz.
- “A” XLR Input: -101.9 dBV,
- “B” RCA Input: -100.9 dBV
- “C” 3.5mm Input: -88.8 dBV
DIMENSIONS
6.5” wide x 4.6” deep and 1.9” tall
POWER SUPPLY REQUIREMENTS
24VDC @ 0.25Amp (6 watt) minimum. Use with supplied power adapter, as this has been carefully selected for best output power and noise performance. May be used with a properly configured 24V battery as well. | This item is in excellent working condition and barely used.
The ZHA-4 splits a single stereo headphone output into four separate powered 1/8” headphone jacks, each with their own volume and mute control. Perfect for bands, podcasts, productions, and more.
Two AA batteries provide hours of portable power. For longer sessions, connect the USB-C port to a portable battery or plug directly into the wall.
What’s in the Box?
- ZHA-4 Handy Headphone Amplifier
- AA Batteries (x2)
- Stereo Mini Audio Cable (19” / 50cm)
- Quick Guide
Please Note: The item displayed in the images may not be the actual item you receive. | Rackmount PG-X Power Conditioner with PG-90 Filtering Technology, Panasonic and Wima capacitors, eight rear switched, filtered and surge protected outlets, one front-panel switched convenience outlet and USB port for device charging.
Your gear deserves the best power, and we took great care in making sure the PG-X delivers just that — thanks to PG-90 Filtering Technology. In testing, this has provided an average of 90% of noise filtering, as opposed to the typical average of 76% found in other power conditioners at the same price point.
Confidence Inspiring Power
There’s nothing worse than scoring that “must-have” piece of gear, only to find that it’s noiser than should be expected, missing high frequency detail, or even worse — having it fried by power surges!
Black Lion Audio has been trusted for years for modifying the best gear and making it even better, and that’s what it took to create the PG-X: taking industry-standard designs, and improving them to the point of peak performance.
After creating the original PG-1, Black Lion Audio knew that plenty of professionals on a smaller budget felt left out, as some features might not be as important as an economy price-point. The PG-X was built with this in mind, while still providing best-of-class power conditioning!
High-end Filtering
Your gear deserves the best power, and we took great care in making sure the PG-X delivers just that — thanks to PG-90 Filtering Technology. In testing, this has provided an average of 90% of noise filtering, as opposed to the typical average of 76% found in other power conditioners at the same price point.
Professional Power
The PG-X features a bank of eight switched, filtered and surge protected outlets on the back panel. On the front panel, the PG-X sports one unswitched convenience outlet and a USB port for device charging.
It takes more than a few rack-mounted outlets to inspire true confidence in your power conditioner, and that’s where the PG-X delivers: best-of-class power filtering!
- Protects your gear from power-spike damage
- Provides clean, well-regulated power for optimum performance
- Features PG-90 Filtering Technology
- Top-drawer components and design for superior power and noise filtering
- Built with premium Panasonic and Wima capacitors
- Rugged 1U rackmount chassis
- 8 switched, filtered, and surge-protected outlets on rear panel
- 1 filtered convenience outlet on front panel
- USB port on front panel
Type: Rackmount
Number of Outlets: 1 x Front, 8 x Rear
Output Current: 15A
USB: 1 x Type A
Features: High frequency noise filter
Rackmountable: Yes
Power Source: Fixed AC cable
Height: 1.7″
Width: 19″
Depth: 9.8″
Weight: 3 lbs. | As with ELI’s other signal processors, the Lil FrEQ Equalizer takes a somewhat unique approach to its job. Instead of daisy chaining several equalizers and frequency processors, we combined most of the sound sculpting tools an engineer needs into a compact single rack space box, while still offering the highest performance of any design in its class.
Eight Sections of Processing
There are eight sections of processing – what other EQ offers that? Even better – in addition to a master bypass, each of the Lil FrEQ’s sections features its own dedicated bypass switch, letting you instantly A/B the effect of each section as you adjust and fine-tune them.
HIGH PASS – The High Pass section is a really easy to use sharp filter that cuts all content below one of eight preset frequencies from 30-330 Hz. This filter is very steep and has a special shape that prevents frequencies from thinning out just above the cutoff point. The corner frequency is selected using up/down buttons, and indicated by LEDs that glow softly when the section is bypassed, and brightly when the section is engaged.
HIGH & LOW SHELVING – These two knobs function similarly to the familiar “bass and treble” tone controls found on many consumer audio playback systems; however, these are designed to a much higher performance standard, providing exceptionally smooth and musical boost and cut on the high and low frequencies.
PARAMETRIC EQ – The Lil FrEQ has four sections of fully parametric EQ (LF, Lo Mid, Hi Mid and HF), with each section featuring individual gain, bandwidth (Q) and frequency controls. It may be the cleanest parametric EQ section ever produced, operating below .0007% THD (Total Harmonic Distortion) even at extremely high audio levels. Try finding those specs anywhere else!
DS (DYNAMIC EQ) – The DS section provides the highest performance, easiest to use, and possibly most natural sounding “De-esser” ever built. This powerful tool combines tunable filters with a compressor-like circuit that can help contain and control excessive high frequency content such as sibilants or other sharp transients, especially in the absence of other lower frequency content. It can also function as a one of a kind soft knee High Frequency limiter, which is one of the main things responsible for the Lil FrEQ becoming the go-to vocal EQ for engineers everywhere. It has been used on many acclaimed albums and major live performances all over the world, becoming the “go to” EQ for key tracks like lead vocals, snares, and bass. There are now dozens of hit record vocals that were processed thru the Lil FrEQ.
Frequency Response: 5 Hz to 140 kHz on transformerless inputs and outputs. Transformer output 10Hz to 110 kHz.
Dynamic Range: 120 dB from maximum output (.1% clipping) to minimum output. Greater than 110 dB signal to noise.
Distortion: Ranges between .00056% and .005% depending on mode and settings. DS section has THD < .005%.
I/O: DC coupled inputs and outputs and one transformer coupled output.
Dynamic Time Constraints: Attack is approximately .5 ms. Release .04 sec fixed internally.
Power Consumption: 15 Watts Max.
Metal Chassis: single height 1.75″ high, 10″ deep, 19″ wide. | Imagine having the power and flexibility of the OP-Z sequencer available to any other music equipment. Now you can, with the new oplab module - the magic link between OP-Z and the rest of the world. The oplab module is the first hardware expansion module for OP-Z. once mounted in the back of your OP-Z, you can use it to connect to any equipment using standard cv and gate, such as the pocket operator modular or any other modular system. It features three cv outs and one gate out, all programmable and playable from OP-Z. have your wall of modules sequenced from the palm of your hands. Use the po sync out to unleash the power of your regular pocket operators and have them play in sync with the rest of your setup. Even connect standard midi devices, using midi over 3.5 mm jack or the included midi over din adapter cable. Oplab features both midi in and out ports as well as trig in and out for other synthesizers and sequencers. | Originally developed for the dynamics circuit of the acclaimed Shelford Channel, the 535 Diode Bridge Compressor captures the soul of Rupert Neve’s original 2254 compressor while providing modern updates including advanced timing control, significantly lower noise, fully stepped controls throughout, and internal parallel processing capabilities.
What is diode bridge compression?
Where the VCA compressor found in the Master Buss Processor provides unmatched clarity, the weighty, harmonically rich tonality of diode bridge compression can be essential in pushing key sources like vocals, electric guitars, bass and drums to the forefront of a mix.
By understanding the limitations of vintage units like the legendary 2254, painstaking effort was taken to reproduce the unique tone of these classics while improving the noise floor & accuracy, expanding inflexible time constants, adding full wave sidechain detection for improved dynamic response, and widening the range of threshold and ratio controls.
Delivering the powerful sound of these iconic designs with enhanced flexibility for the modern age, the 535 Diode Bridge Compressor is a dynamic tool equipped to make a bold statement on virtually any mix or track.
LINE INPUT TO LINE OUTPUT
- Compressor Bypassed.
- Z source = 40 Ohm Balanced
INPUT IMPEDANCE
10K Ohm
OUTPUT IMPEDANCE
40 Ohm
MAXIMUM INPUT LEVEL
+23.5 dBu
MAXIMUM OUTPUT LEVEL
+23.5 dBu
NOISE
- 22 Hz - 22 kHz BW.
- -101 dBu
FREQUENCY RESPONSE
- 10 Hz - 120 kHz, 30ft Output XLR Cable.
- +/- 0.25 dB
THD+N
- @ 1 kHz @ Maximum Output Level, 22 Hz - 22 kHz BW.
- 0.001%
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