SPL Crossover Mk2

Pure Analog Integration for High-End Systems

Integrating subwoofers into a dedicated two-channel Hi-Fi system often forces a choice between acoustic compromises or unwanted Analog-to-Digital (ADC) and Digital-to-Analog (DAC) conversions. The SPL Crossover Mk2 solves this dilemma by offering a purely analog, ultra-high-precision crossover designed to preserve the integrity of high-end signal chains.

120V VOLTAiR Technology: Unmatched Headroom & Clarity

At the heart of the Crossover Mk2 is SPL’s reference VOLTAiR technology. Operating on a internal DC voltage of +/-60 V—four times higher than conventional semiconductor operational amplifiers—the custom SPL 120V SUPRA op-amps deliver exceptional technical performance. The result is an effortless, low-distortion listening experience marked by deep dynamic range and precise detail recovery.

Precise Control Across the Spectrum

• The Crossover Mk2 split control structure provides individual LOW PASS and HIGH PASS tuning:
• X-FREQ & X-OVER Switches: Choose between three main bands (50–120 Hz, 300–720 Hz, and 1.5–3.6 kHz) and dial in six distinct frequency steps per band, yielding 18 precise crossover points per section.
• Slope Selection: Fine-tune integration with switchable 12 dB or 24 dB roll-off rates.
• High Pass Bypass: Turn off the High Pass filter completely if you prefer running main speakers full-range.

Phase Sync and Power Management

A variable phase control knob allows a full 360° phase alignment range (0° to 180° and 0° to -180°) to ensure your subwoofers and main speakers play in perfect physical time alignment. When phase correction isn't required, the circuit can be toggled completely off to remain isolated from the signal path.

For ease of integration, gold-plated RCA and XLR connections are active simultaneously on output, allowing versatile bi-amping setups. Additionally, the built-in 12V AMP CTL trigger connections allow the Crossover Mk2 to manage standby modes across up to four external power amplifiers seamlessly.

• SPL Crossover MK2 Manual

We endeavour to despatch same day for orders placed up to 1pm on available stock items (items with stock message "Usually dispatched within 24 hours"). Please remember to check with us first for a physical stock check if next day delivery is important to you. Any items with stock message "Usually dispatched within 72 hours" are items that we do not hold in stock but order in from the importer or manufacturer as soon as a customer order is received. Occasionally these may be delayed beyond 72 hours due to importer/manufacturer stock levels but we will inform you as soon as we can if this is the case.

UK Orders

We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Non Mainland locations - Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland may take a day or so longer and are not Free of Charge. Smaller items are delivered using Royal Mail 24 or special delivery. Larger items are delivered using a courier service such as DPD or UPS.

International Orders:

Due to the nature of our products and brand restrictions we are only able to send certain items internationally. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Hifisound or by the courier with a request for any further information required. Customs duties can apply for shipments to any countries outside of the UK depending on where the product you have bought is made. Customers are responsible for all taxes and duties incurred when the items enter their country.

Collect in Store or Home Install

At the request of the manufacturer some items cannot be supplied by mail order but you can click and buy them and then elect to collect them from our store or arrange a home install (if applicable). Applicable items clearly state that they are Collect in store or home install. Once ordered you will receive a message prompting you to contact us by phone or email to arrange for us to deliver and install or to reserve and collect from our store at your convenience, you will also be advised of the delivery time / stock availability as not all Home install / collect in store items are held in stock.