In addition to 72 dB of gain, the RND 5024’s mic pres include individually selectable phase, mute, phantom power, a selectable frequency high pass filter, and the Silk circuit which yields the rich warmth and presence of the renowned classic designs. Channels 1 & 2 of the 5024 feature a high-Z input designed for instrument level sources. Channels 3 & 4 feature an M-S switch, which enables Mid-Side decoding without the use of multiple console channels.
The microphone input is balanced but not floating, being a variant of an instrumentation amplifier using a “Transformer-Like-Amplifier” (T.L.A.) configuration with a toroidal Common Mode Rejection Low Pass Filter that excludes frequencies above 150 kHz. The T.L.A. is followed by an actual input transformer permitting a full +25 dBu input signal to be handled at unity gain without an input pad over the whole audio spectrum. This combines the advantages of both an “Electronically Balanced” and true transformer input. When the Phantom voltage is switched off, this input serves as a very high quality line input with an impedance of 10,000 ohms.
Low Noise, Low Distortion Operation
Much care was given in designing the 5012 to produce as little noise and non-harmonic distortion as possible. Carefully implemented signal paths and Class A operation are a large part of the 5024′s sweet, whisper quiet performance.
A complete discussion on transformers is out of place at this point but a technical discussion will be posted at a later date. Here it is helpful to review some of the essentials where it will be seen that a design needs to be viewed as a whole, not simply from the point of view of a single component.
The fine subtleties of circuit design relating to sonic performance are gradually becoming more clearly understood. For example, research has shown conclusively that frequencies above 20 kHz affect the way in which humans perceive sound quality. But, long before scientific evidence emerged a substantial body of musicians and engineers knew that equipment with apparently the same technical measurements could sound very different.
Incredibly small amounts of musically dissonant odd harmonics have a disastrous effect on the sound quality. Extraneous noise or interference that finds its way into a signal path seriously impairs performance of the whole chain.
Many control rooms make use of outboard gear that is not well protected from external signals. Poor grounding of such equipment can be a serious problem. “Electronically balanced” circuits much used in modern equipment, can give very good measurements on the test bench but they do not provide adequate rejection of the stray fields found in every working environment.
Input and output circuits must be freed from ground dependence so that only the “wanted” signal enters and leaves the processing path. Transformers are the ideal solution. The sweet and silky sound of Rupert's classic old favorite consoles was achieved with big transistors and large high quality transformers. Rupert Neve Designs Portico modules achieve similar quality today without the bulk or the cost.
In order that modules can work together as would be expected (i.e. in a proprietary console configuration) without producing hum, R.F. interference, or other interactions, the connecting interfaces, grounding, levels and impedances must receive careful attention. Each Portico module is a complete integral signal processor that delivers its specified performance independently. This is one of the reasons Rupert Neve Designs use transformers.
Much could be written about this feature, suffice to say, that it gives a subtle option to enhance sound quality in the direction of vintage modules. The Silk button reduces negative feedback and adjusts the frequency spectrum to provide a very sweet and musical performance. We suggest you try it and make your own judgment.
The M-S button engages Mid-Side decoding on channels 3 & 4. Channel 3 level controls the mid signal, and channel 4 level controls the side signal.
Balanced or unbalanced Hi-Z input for instruments using the Mic Pre's gain circuitry.
-30 dBu to +22 dBu With reference to the output
Cuts of the output signal post metering and pre Buss Output. Be sure to mute the outputs before engaging phantom power.
High Pass Filter
The High pass filter is a valuable aid in any signal chain but particularly so in a microphone preamplifier. Signals below 30 or 90 Hz can be attenuated at 12dB / Octave, leaving the range above this unaffected. This gets rid of building rumble, air handling motor hum etc.
Provides 48V phantom power to microphones
Reverses the polarity of an incoming source signal
The includes a 1 Year return to base warranty. This warranty applies to all equipment which has developed a manufacturer defect during application. Please contact us to confirm the availability and lowest price for any product. For quotes and price matching requests, contact us and include the competing website address.
Free International Shipping (FEDEX)
|Condition||Sealed / New|
|Delivered Price||Shown at checkout|
Please contact us for stock availability , price quotes , expedited shipping quotes or to arrange a return of your (for the full purchase price of ). You may return most new, unopened items within 30 days of delivery for a full refund. AudioBuy Australia are very proud to carry a large selection of gear. You demand quality, reliability, and innovative design from your gear, and we're here to help you find exactly what you need. We're glad to answer any questions you have and you can always depend on AudioBuy to give you the best possible value on musical instruments and accessories with responsive customer service.
Returns & Warranty Repair
If your item arrives with any issue , please hold the item and be sure to retain all packing materials. We will arrange for the item to be inspected immediately. Do not return the &nbps; to us unless we have provided an RMA number. We will then work with you to replace the item or refund the purchase price of &nbps; if it is not replaceable.
- Free international shipping to most countries including Australia , Egypt , Turkey , Malaysia , South Africa , Morocco , Lebanon , Jordan , Chile , Brazil , Mexico , Argentina , Austria , Italy , Belgium , Philippines , Indonesia and Portugal.
- Return to base repair or replacement (1 Year return to base).
Frequently Asked Questions
How do I check for stock levels?
Email "[email protected]" to enquire about current stock levels for the . We aim to stock popular items at all times and are able to quickly order in products if they are currently not in stock. In the event of product backorder or product discontinuation your order will be cancelled and a payment request (Paypal) will not be processed.
Do we ship products internationally?
Yes. AudioBuy ship the majority of products to all international locations serviced by FEDEX. You will be notified during checkout if your order is unable to be delivered to your region due to manufacturer restrictions and/or other shipping restrictions. All listed prices are inclusive of FEDEX shipping costs.
What is the process after I checkout?
Following checkout your order number will be generated and stock availability confirmed before a Paypal invoice is emailed to your registered email address. If your order is not in stock and cannot be shipped within 10 business days then your order will be cancelled. If your order is in stock or can be ordered from the manufacturer for FEDEX dispatch within 10 business days then we will email a Paypal invoice to complete payment.
When do I pay?
You do not pay at checkout. If your order is in stock or readily available from the manufacturer then a Paypal payment request (invoice) will be emailed to you 2-24 hours following checkout. This is to ensure that we do not collect payment for orders which cannot be promptly dispatched and delivered.
When will my Paypal invoice arrive?
Following checkout your Paypal invoice will be emailed to you within 24 hours if your entire is in stock or readily available with the manufacturer.
When will my order be delivered?
Following Paypal payment your order will be FEDEX dispatched within 1-2 business days if your order is in stock. If your order is only in stock with the manufacturer then we will require up to 10 business days to FEDEX dispatch your order. After your order has been shipped we will email your FEDEX tracking number to the email address you provided during checkout / account sign-up. The average FEDEX transit time is 3-5 business days to most international locations.
Can you price match with another retailer?
Yes. Contact "[email protected]" with the product name and the competing website's URL. Our total price including FEDEX delivery is currently . When comparing prices with other retailers be aware that their prices may not include international FEDEX shipping costs.
Do we sell used or second hand products?
No. AudioBuy only sell brand new and sealed products which are sourced from the respective and legitimate manufacturer ( ).
Do I need to have a Paypal account to complete payment?
No. Paypal provide the option of completing payment with your Paypal account if you are already a member , if you do not have a Paypal account you will be prompted to complete payment using a debit or credit card. All Paypal payments are subject to approval and will be promptly refunded if AudioBuy or Paypal review the transaction to be unauthorised.